Analysis Report MEDUSI492126.pdf.exe

AV Detection:

Found malware configuration

Source: InstallUtil.exe.5896.24.memstr

Malware Configuration Extractor: NanoCore {"C2: ": ["185.162.88.26"], "Version: ": "NanoCore Client, Version=1.2.2.0"}

Multi AV Scanner detection for dropped file

Source: C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe	Virustotal: Detection: 34%			Perma Link
Source: C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe	ReversingLabs: Detection: 20%

Multi AV Scanner detection for submitted file

Source: MEDUSI492126.pdf.exe	Virustotal: Detection: 34%			Perma Link
Source: MEDUSI492126.pdf.exe	ReversingLabs: Detection: 20%

Yara detected Nanocore RAT

Source: Yara match	File source: 00000014.00000002.592972004.0000000004172000.00000004.00000001.sdmp, type: MEMORY
Source: Yara match	File source: 00000000.00000002.338088857.0000000004A4A000.00000004.00000001.sdmp, type: MEMORY
Source: Yara match	File source: 00000014.00000002.593076062.0000000004205000.00000004.00000001.sdmp, type: MEMORY
Source: Yara match	File source: 00000018.00000002.589229834.00000000042A9000.00000004.00000001.sdmp, type: MEMORY
Source: Yara match	File source: 00000018.00000002.580480048.0000000000402000.00000040.00000001.sdmp, type: MEMORY
Source: Yara match	File source: 00000018.00000002.592779539.0000000005900000.00000004.00000001.sdmp, type: MEMORY
Source: Yara match	File source: 00000000.00000002.337626085.00000000048E8000.00000004.00000001.sdmp, type: MEMORY
Source: Yara match	File source: 00000014.00000002.593637409.000000000439B000.00000004.00000001.sdmp, type: MEMORY
Source: Yara match	File source: Process Memory Space: MEDUSI492126.pdf.exe PID: 6088, type: MEMORY
Source: Yara match	File source: Process Memory Space: InstallUtil.exe PID: 5896, type: MEMORY
Source: Yara match	File source: Process Memory Space: hgjgfddsxaz.exe PID: 6920, type: MEMORY
Source: Yara match	File source: 24.2.InstallUtil.exe.5900000.4.unpack, type: UNPACKEDPE
Source: Yara match	File source: 24.2.InstallUtil.exe.400000.0.unpack, type: UNPACKEDPE
Source: Yara match	File source: 24.2.InstallUtil.exe.5900000.4.raw.unpack, type: UNPACKEDPE

Antivirus or Machine Learning detection for unpacked file

Source: 24.2.InstallUtil.exe.5900000.4.unpack	Avira: Label: TR/NanoCore.fadte
Source: 24.2.InstallUtil.exe.400000.0.unpack	Avira: Label: TR/Dropper.MSIL.Gen7

Compliance:

Uses 32bit PE files

Source: MEDUSI492126.pdf.exe

Static PE information: 32BIT_MACHINE, EXECUTABLE_IMAGE

Contains modern PE file flags such as dynamic base (ASLR) or NX

Source: MEDUSI492126.pdf.exe

Static PE information: NO_SEH, TERMINAL_SERVER_AWARE, DYNAMIC_BASE, NX_COMPAT, HIGH_ENTROPY_VA

Binary contains paths to debug symbols

Source:	Binary string: \??\C:\Windows\exe\InstallUtil.pdb source: InstallUtil.exe, 00000018.00000002.583357176.00000000015C8000.00000004.00000020.sdmp
Source:	Binary string: InstallUtil.pdb\rvr hr_CorExeMainmscoree.dll source: MEDUSI492126.pdf.exe, 00000000.00000003.298714752.0000000008321000.00000004.00000001.sdmp, InstallUtil.exe, 00000018.00000002.580942678.0000000000E02000.00000002.00020000.sdmp, InstallUtil.exe.0.dr
Source:	Binary string: InstallUtil.pdb source: MEDUSI492126.pdf.exe, 00000000.00000003.298714752.0000000008321000.00000004.00000001.sdmp, InstallUtil.exe, InstallUtil.exe.0.dr

Software Vulnerabilities:

Found inlined nop instructions (likely shell or obfuscated code)

Source: C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe	Code function: 4x nop then push dword ptr [ebp-24h]		20_2_076A5638
Source: C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe	Code function: 4x nop then mov dword ptr [ebp-1Ch], 7FFFFFFFh		20_2_076A5638
Source: C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe	Code function: 4x nop then jmp 076A0806h		20_2_076A0040
Source: C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe	Code function: 4x nop then mov dword ptr [ebp-1Ch], 00000000h		20_2_076A4FCC
Source: C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe	Code function: 4x nop then mov dword ptr [ebp-18h], 00000000h		20_2_076AB840
Source: C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe	Code function: 4x nop then mov dword ptr [ebp-1Ch], 00000000h		20_2_076A483C
Source: C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe	Code function: 4x nop then push dword ptr [ebp-24h]		20_2_076A562C
Source: C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe	Code function: 4x nop then mov dword ptr [ebp-1Ch], 7FFFFFFFh		20_2_076A562C
Source: C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe	Code function: 4x nop then xor edx, edx		20_2_076A5564
Source: C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe	Code function: 4x nop then xor edx, edx		20_2_076A5570
Source: C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe	Code function: 4x nop then push dword ptr [ebp-20h]		20_2_076A530C
Source: C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe	Code function: 4x nop then mov dword ptr [ebp-1Ch], 7FFFFFFFh		20_2_076A530C
Source: C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe	Code function: 4x nop then push dword ptr [ebp-20h]		20_2_076A5318
Source: C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe	Code function: 4x nop then mov dword ptr [ebp-1Ch], 7FFFFFFFh		20_2_076A5318
Source: C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe	Code function: 4x nop then jmp 076A0806h		20_2_076A0006
Source: C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe	Code function: 4x nop then mov dword ptr [ebp-1Ch], 00000000h		20_2_076A4A34
Source: C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe	Code function: 4x nop then mov dword ptr [ebp-1Ch], 00000000h		20_2_076A6978
Source: C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe	Code function: 4x nop then mov dword ptr [ebp-18h], 00000000h		20_2_076AB82F

Networking:

C2 URLs / IPs found in malware configuration

Source: Malware configuration extractor

IPs: 185.162.88.26

Uses dynamic DNS services

Source: unknown

DNS query: name: fenixalec.ddns.net

Detected TCP or UDP traffic on non-standard ports

Source: global traffic

TCP traffic: 192.168.2.3:49753 -> 185.162.88.26:20911

Internet Provider seen in connection with other malware

Source: Joe Sandbox View

ASN Name: AS40676US AS40676US

Performs DNS lookups

Source: unknown

DNS traffic detected: queries for: fenixalec.ddns.net

Urls found in memory or binary data

Source: MEDUSI492126.pdf.exe, 00000000.00000003.335533082.0000000001849000.00000004.00000001.sdmp

String found in binary or memory: http://ns.ado/Ident

Key, Mouse, Clipboard, Microphone and Screen Capturing:

Creates a DirectInput object (often for capturing keystrokes)

Source: MEDUSI492126.pdf.exe, 00000000.00000002.336435982.0000000001370000.00000004.00000020.sdmp

Binary or memory string: <HOOK MODULE="DDRAW.DLL" FUNCTION="DirectDrawCreateEx"/>

Installs a raw input device (often for capturing keystrokes)

Source: InstallUtil.exe, 00000018.00000002.589229834.00000000042A9000.00000004.00000001.sdmp

Binary or memory string: RegisterRawInputDevices

E-Banking Fraud:

Yara detected Nanocore RAT

Source: Yara match	File source: 00000014.00000002.592972004.0000000004172000.00000004.00000001.sdmp, type: MEMORY
Source: Yara match	File source: 00000000.00000002.338088857.0000000004A4A000.00000004.00000001.sdmp, type: MEMORY
Source: Yara match	File source: 00000014.00000002.593076062.0000000004205000.00000004.00000001.sdmp, type: MEMORY
Source: Yara match	File source: 00000018.00000002.589229834.00000000042A9000.00000004.00000001.sdmp, type: MEMORY
Source: Yara match	File source: 00000018.00000002.580480048.0000000000402000.00000040.00000001.sdmp, type: MEMORY
Source: Yara match	File source: 00000018.00000002.592779539.0000000005900000.00000004.00000001.sdmp, type: MEMORY
Source: Yara match	File source: 00000000.00000002.337626085.00000000048E8000.00000004.00000001.sdmp, type: MEMORY
Source: Yara match	File source: 00000014.00000002.593637409.000000000439B000.00000004.00000001.sdmp, type: MEMORY
Source: Yara match	File source: Process Memory Space: MEDUSI492126.pdf.exe PID: 6088, type: MEMORY
Source: Yara match	File source: Process Memory Space: InstallUtil.exe PID: 5896, type: MEMORY
Source: Yara match	File source: Process Memory Space: hgjgfddsxaz.exe PID: 6920, type: MEMORY
Source: Yara match	File source: 24.2.InstallUtil.exe.5900000.4.unpack, type: UNPACKEDPE
Source: Yara match	File source: 24.2.InstallUtil.exe.400000.0.unpack, type: UNPACKEDPE
Source: Yara match	File source: 24.2.InstallUtil.exe.5900000.4.raw.unpack, type: UNPACKEDPE

System Summary:

Malicious sample detected (through community Yara rule)

Source: 00000014.00000002.592972004.0000000004172000.00000004.00000001.sdmp, type: MEMORY	Matched rule: Detetcs the Nanocore RAT Author: Florian Roth
Source: 00000014.00000002.592972004.0000000004172000.00000004.00000001.sdmp, type: MEMORY	Matched rule: NanoCore Author: Kevin Breen <kevin@techanarchy.net>
Source: 00000000.00000002.338088857.0000000004A4A000.00000004.00000001.sdmp, type: MEMORY	Matched rule: Detetcs the Nanocore RAT Author: Florian Roth
Source: 00000000.00000002.338088857.0000000004A4A000.00000004.00000001.sdmp, type: MEMORY	Matched rule: NanoCore Author: Kevin Breen <kevin@techanarchy.net>
Source: 00000014.00000002.593076062.0000000004205000.00000004.00000001.sdmp, type: MEMORY	Matched rule: Detetcs the Nanocore RAT Author: Florian Roth
Source: 00000014.00000002.593076062.0000000004205000.00000004.00000001.sdmp, type: MEMORY	Matched rule: NanoCore Author: Kevin Breen <kevin@techanarchy.net>
Source: 00000018.00000002.589229834.00000000042A9000.00000004.00000001.sdmp, type: MEMORY	Matched rule: NanoCore Author: Kevin Breen <kevin@techanarchy.net>
Source: 00000018.00000002.580480048.0000000000402000.00000040.00000001.sdmp, type: MEMORY	Matched rule: Detetcs the Nanocore RAT Author: Florian Roth
Source: 00000018.00000002.580480048.0000000000402000.00000040.00000001.sdmp, type: MEMORY	Matched rule: NanoCore Author: Kevin Breen <kevin@techanarchy.net>
Source: 00000018.00000002.592742291.00000000058E0000.00000004.00000001.sdmp, type: MEMORY	Matched rule: Detetcs the Nanocore RAT Author: Florian Roth
Source: 00000018.00000002.592779539.0000000005900000.00000004.00000001.sdmp, type: MEMORY	Matched rule: Detetcs the Nanocore RAT Author: Florian Roth
Source: 00000000.00000002.337626085.00000000048E8000.00000004.00000001.sdmp, type: MEMORY	Matched rule: Detetcs the Nanocore RAT Author: Florian Roth
Source: 00000000.00000002.337626085.00000000048E8000.00000004.00000001.sdmp, type: MEMORY	Matched rule: NanoCore Author: Kevin Breen <kevin@techanarchy.net>
Source: 00000014.00000002.593637409.000000000439B000.00000004.00000001.sdmp, type: MEMORY	Matched rule: Detetcs the Nanocore RAT Author: Florian Roth
Source: 00000014.00000002.593637409.000000000439B000.00000004.00000001.sdmp, type: MEMORY	Matched rule: NanoCore Author: Kevin Breen <kevin@techanarchy.net>
Source: Process Memory Space: MEDUSI492126.pdf.exe PID: 6088, type: MEMORY	Matched rule: Detetcs the Nanocore RAT Author: Florian Roth
Source: Process Memory Space: MEDUSI492126.pdf.exe PID: 6088, type: MEMORY	Matched rule: NanoCore Author: Kevin Breen <kevin@techanarchy.net>
Source: Process Memory Space: InstallUtil.exe PID: 5896, type: MEMORY	Matched rule: Detetcs the Nanocore RAT Author: Florian Roth
Source: Process Memory Space: InstallUtil.exe PID: 5896, type: MEMORY	Matched rule: NanoCore Author: Kevin Breen <kevin@techanarchy.net>
Source: Process Memory Space: hgjgfddsxaz.exe PID: 6920, type: MEMORY	Matched rule: Detetcs the Nanocore RAT Author: Florian Roth
Source: Process Memory Space: hgjgfddsxaz.exe PID: 6920, type: MEMORY	Matched rule: NanoCore Author: Kevin Breen <kevin@techanarchy.net>
Source: 24.2.InstallUtil.exe.58e0000.3.raw.unpack, type: UNPACKEDPE	Matched rule: Detetcs the Nanocore RAT Author: Florian Roth
Source: 24.2.InstallUtil.exe.5900000.4.unpack, type: UNPACKEDPE	Matched rule: Detetcs the Nanocore RAT Author: Florian Roth
Source: 24.2.InstallUtil.exe.400000.0.unpack, type: UNPACKEDPE	Matched rule: Detetcs the Nanocore RAT Author: Florian Roth
Source: 24.2.InstallUtil.exe.400000.0.unpack, type: UNPACKEDPE	Matched rule: NanoCore Author: Kevin Breen <kevin@techanarchy.net>
Source: 24.2.InstallUtil.exe.5900000.4.raw.unpack, type: UNPACKEDPE	Matched rule: Detetcs the Nanocore RAT Author: Florian Roth

Initial sample is a PE file and has a suspicious name

Source: initial sample

Static PE information: Filename: MEDUSI492126.pdf.exe

Detected potential crypto function

Source: C:\Users\user\Desktop\MEDUSI492126.pdf.exe	Code function: 0_2_012AA949		0_2_012AA949
Source: C:\Users\user\Desktop\MEDUSI492126.pdf.exe	Code function: 0_2_012ACB70		0_2_012ACB70
Source: C:\Users\user\Desktop\MEDUSI492126.pdf.exe	Code function: 0_2_012A5398		0_2_012A5398
Source: C:\Users\user\Desktop\MEDUSI492126.pdf.exe	Code function: 0_2_012A1510		0_2_012A1510
Source: C:\Users\user\Desktop\MEDUSI492126.pdf.exe	Code function: 0_2_012A4C30		0_2_012A4C30
Source: C:\Users\user\Desktop\MEDUSI492126.pdf.exe	Code function: 0_2_012AB441		0_2_012AB441
Source: C:\Users\user\Desktop\MEDUSI492126.pdf.exe	Code function: 0_2_012AA480		0_2_012AA480
Source: C:\Users\user\Desktop\MEDUSI492126.pdf.exe	Code function: 0_2_012AE632		0_2_012AE632
Source: C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe	Code function: 20_2_04EC13F8		20_2_04EC13F8
Source: C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe	Code function: 20_2_04EC0CC8		20_2_04EC0CC8
Source: C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe	Code function: 20_2_04EC3318		20_2_04EC3318
Source: C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe	Code function: 20_2_04EC29D8		20_2_04EC29D8
Source: C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe	Code function: 20_2_04EB63AB		20_2_04EB63AB
Source: C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe	Code function: 20_2_04EB48A2		20_2_04EB48A2
Source: C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe	Code function: 20_2_04EC3D60		20_2_04EC3D60
Source: C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe	Code function: 20_2_04EC2560		20_2_04EC2560
Source: C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe	Code function: 20_2_00C7A949		20_2_00C7A949
Source: C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe	Code function: 20_2_00C75398		20_2_00C75398
Source: C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe	Code function: 20_2_00C7CB70		20_2_00C7CB70
Source: C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe	Code function: 20_2_00C7A480		20_2_00C7A480
Source: C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe	Code function: 20_2_00C7B441		20_2_00C7B441
Source: C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe	Code function: 20_2_00C74C30		20_2_00C74C30
Source: C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe	Code function: 20_2_00C71510		20_2_00C71510
Source: C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe	Code function: 20_2_00C7E630		20_2_00C7E630
Source: C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe	Code function: 20_2_076AD5D8		20_2_076AD5D8
Source: C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe	Code function: 20_2_076A63A0		20_2_076A63A0
Source: C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe	Code function: 20_2_076AF2E8		20_2_076AF2E8
Source: C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe	Code function: 20_2_076A0040		20_2_076A0040
Source: C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe	Code function: 20_2_076ADFC0		20_2_076ADFC0
Source: C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe	Code function: 20_2_076ABA78		20_2_076ABA78
Source: C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe	Code function: 20_2_076A0820		20_2_076A0820
Source: C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe	Code function: 20_2_076AD5C8		20_2_076AD5C8
Source: C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe	Code function: 20_2_076A6390		20_2_076A6390
Source: C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe	Code function: 20_2_076AF2DB		20_2_076AF2DB
Source: C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe	Code function: 20_2_076A0006		20_2_076A0006
Source: C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe	Code function: 20_2_076ADFB0		20_2_076ADFB0
Source: C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe	Code function: 20_2_076A5DE1		20_2_076A5DE1
Source: C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe	Code function: 20_2_076A5DF0		20_2_076A5DF0
Source: C:\Users\user\AppData\Local\Temp\InstallUtil.exe	Code function: 24_2_00E020B0		24_2_00E020B0
Source: C:\Users\user\AppData\Local\Temp\InstallUtil.exe	Code function: 24_2_031CE471		24_2_031CE471
Source: C:\Users\user\AppData\Local\Temp\InstallUtil.exe	Code function: 24_2_031CE480		24_2_031CE480
Source: C:\Users\user\AppData\Local\Temp\InstallUtil.exe	Code function: 24_2_031CBBD4		24_2_031CBBD4

Dropped file seen in connection with other malware

Source: Joe Sandbox View

Dropped File: C:\Users\user\AppData\Local\Temp\InstallUtil.exe 46DEE184523A584E56DF93389F81992911A1BA6B1F05AD7D803C6AB1450E18CB

PE file contains strange resources

Source: MEDUSI492126.pdf.exe	Static PE information: Resource name: RT_ICON type: GLS_BINARY_LSB_FIRST
Source: MEDUSI492126.pdf.exe	Static PE information: Resource name: RT_ICON type: GLS_BINARY_LSB_FIRST
Source: MEDUSI492126.pdf.exe	Static PE information: Resource name: RT_ICON type: GLS_BINARY_LSB_FIRST
Source: hgjgfddsxaz.exe.0.dr	Static PE information: Resource name: RT_ICON type: GLS_BINARY_LSB_FIRST
Source: hgjgfddsxaz.exe.0.dr	Static PE information: Resource name: RT_ICON type: GLS_BINARY_LSB_FIRST
Source: hgjgfddsxaz.exe.0.dr	Static PE information: Resource name: RT_ICON type: GLS_BINARY_LSB_FIRST

Sample file is different than original file name gathered from version info

Source: MEDUSI492126.pdf.exe, 00000000.00000002.338494033.0000000004FD0000.00000002.00000001.sdmp	Binary or memory string: originalfilename vs MEDUSI492126.pdf.exe
Source: MEDUSI492126.pdf.exe, 00000000.00000002.338494033.0000000004FD0000.00000002.00000001.sdmp	Binary or memory string: OriginalFilenamepropsys.dll.mui@ vs MEDUSI492126.pdf.exe
Source: MEDUSI492126.pdf.exe, 00000000.00000002.340692963.0000000005650000.00000002.00000001.sdmp	Binary or memory string: OriginalFilenameKernelbase.dll.muij% vs MEDUSI492126.pdf.exe
Source: MEDUSI492126.pdf.exe, 00000000.00000003.298714752.0000000008321000.00000004.00000001.sdmp	Binary or memory string: OriginalFilenameInstallUtil.exeT vs MEDUSI492126.pdf.exe
Source: MEDUSI492126.pdf.exe, 00000000.00000002.337274177.0000000003F71000.00000004.00000001.sdmp	Binary or memory string: OriginalFilenameSHCore1.dll0 vs MEDUSI492126.pdf.exe
Source: MEDUSI492126.pdf.exe, 00000000.00000002.338327655.0000000004F70000.00000002.00000001.sdmp	Binary or memory string: System.OriginalFileName vs MEDUSI492126.pdf.exe
Source: MEDUSI492126.pdf.exe, 00000000.00000002.336435982.0000000001370000.00000004.00000020.sdmp	Binary or memory string: OriginalFilenameclr.dllT vs MEDUSI492126.pdf.exe

Uses 32bit PE files

Source: MEDUSI492126.pdf.exe

Static PE information: 32BIT_MACHINE, EXECUTABLE_IMAGE

Uses reg.exe to modify the Windows registry

Source: unknown

Process created: C:\Windows\SysWOW64\reg.exe REG ADD 'HKCU\Software\Microsoft\Windows\CurrentVersion\Run' /f /v 'retyujik' /t REG_SZ /d 'C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe'

Yara signature match

Source: 00000014.00000002.592972004.0000000004172000.00000004.00000001.sdmp, type: MEMORY	Matched rule: Nanocore_RAT_Gen_2 date = 2016-04-22, hash1 = 755f49a4ffef5b1b62f4b5a5de279868c0c1766b528648febf76628f1fe39050, author = Florian Roth, description = Detetcs the Nanocore RAT, license = https://creativecommons.org/licenses/by-nc/4.0/, score = https://www.sentinelone.com/blogs/teaching-an-old-rat-new-tricks/
Source: 00000014.00000002.592972004.0000000004172000.00000004.00000001.sdmp, type: MEMORY	Matched rule: NanoCore date = 2014/04, filetype = exe, author = Kevin Breen <kevin@techanarchy.net>, maltype = Remote Access Trojan, ref = http://malwareconfig.com/stats/NanoCore
Source: 00000000.00000002.338088857.0000000004A4A000.00000004.00000001.sdmp, type: MEMORY	Matched rule: Nanocore_RAT_Gen_2 date = 2016-04-22, hash1 = 755f49a4ffef5b1b62f4b5a5de279868c0c1766b528648febf76628f1fe39050, author = Florian Roth, description = Detetcs the Nanocore RAT, license = https://creativecommons.org/licenses/by-nc/4.0/, score = https://www.sentinelone.com/blogs/teaching-an-old-rat-new-tricks/
Source: 00000000.00000002.338088857.0000000004A4A000.00000004.00000001.sdmp, type: MEMORY	Matched rule: NanoCore date = 2014/04, filetype = exe, author = Kevin Breen <kevin@techanarchy.net>, maltype = Remote Access Trojan, ref = http://malwareconfig.com/stats/NanoCore
Source: 00000014.00000002.593076062.0000000004205000.00000004.00000001.sdmp, type: MEMORY	Matched rule: Nanocore_RAT_Gen_2 date = 2016-04-22, hash1 = 755f49a4ffef5b1b62f4b5a5de279868c0c1766b528648febf76628f1fe39050, author = Florian Roth, description = Detetcs the Nanocore RAT, license = https://creativecommons.org/licenses/by-nc/4.0/, score = https://www.sentinelone.com/blogs/teaching-an-old-rat-new-tricks/
Source: 00000014.00000002.593076062.0000000004205000.00000004.00000001.sdmp, type: MEMORY	Matched rule: NanoCore date = 2014/04, filetype = exe, author = Kevin Breen <kevin@techanarchy.net>, maltype = Remote Access Trojan, ref = http://malwareconfig.com/stats/NanoCore
Source: 00000018.00000002.589229834.00000000042A9000.00000004.00000001.sdmp, type: MEMORY	Matched rule: NanoCore date = 2014/04, filetype = exe, author = Kevin Breen <kevin@techanarchy.net>, maltype = Remote Access Trojan, ref = http://malwareconfig.com/stats/NanoCore
Source: 00000018.00000002.580480048.0000000000402000.00000040.00000001.sdmp, type: MEMORY	Matched rule: Nanocore_RAT_Gen_2 date = 2016-04-22, hash1 = 755f49a4ffef5b1b62f4b5a5de279868c0c1766b528648febf76628f1fe39050, author = Florian Roth, description = Detetcs the Nanocore RAT, license = https://creativecommons.org/licenses/by-nc/4.0/, score = https://www.sentinelone.com/blogs/teaching-an-old-rat-new-tricks/
Source: 00000018.00000002.580480048.0000000000402000.00000040.00000001.sdmp, type: MEMORY	Matched rule: NanoCore date = 2014/04, filetype = exe, author = Kevin Breen <kevin@techanarchy.net>, maltype = Remote Access Trojan, ref = http://malwareconfig.com/stats/NanoCore
Source: 00000018.00000002.592742291.00000000058E0000.00000004.00000001.sdmp, type: MEMORY	Matched rule: Nanocore_RAT_Gen_2 date = 2016-04-22, hash1 = 755f49a4ffef5b1b62f4b5a5de279868c0c1766b528648febf76628f1fe39050, author = Florian Roth, description = Detetcs the Nanocore RAT, license = https://creativecommons.org/licenses/by-nc/4.0/, score = https://www.sentinelone.com/blogs/teaching-an-old-rat-new-tricks/
Source: 00000018.00000002.592742291.00000000058E0000.00000004.00000001.sdmp, type: MEMORY	Matched rule: Nanocore_RAT_Feb18_1 date = 2018-02-19, hash1 = aa486173e9d594729dbb5626748ce10a75ee966481b68c1b4f6323c827d9658c, author = Florian Roth, description = Detects Nanocore RAT, reference = Internal Research - T2T, license = https://creativecommons.org/licenses/by-nc/4.0/
Source: 00000018.00000002.592779539.0000000005900000.00000004.00000001.sdmp, type: MEMORY	Matched rule: Nanocore_RAT_Gen_2 date = 2016-04-22, hash1 = 755f49a4ffef5b1b62f4b5a5de279868c0c1766b528648febf76628f1fe39050, author = Florian Roth, description = Detetcs the Nanocore RAT, license = https://creativecommons.org/licenses/by-nc/4.0/, score = https://www.sentinelone.com/blogs/teaching-an-old-rat-new-tricks/
Source: 00000018.00000002.592779539.0000000005900000.00000004.00000001.sdmp, type: MEMORY	Matched rule: Nanocore_RAT_Feb18_1 date = 2018-02-19, hash1 = aa486173e9d594729dbb5626748ce10a75ee966481b68c1b4f6323c827d9658c, author = Florian Roth, description = Detects Nanocore RAT, reference = Internal Research - T2T, license = https://creativecommons.org/licenses/by-nc/4.0/
Source: 00000000.00000002.337626085.00000000048E8000.00000004.00000001.sdmp, type: MEMORY	Matched rule: Nanocore_RAT_Gen_2 date = 2016-04-22, hash1 = 755f49a4ffef5b1b62f4b5a5de279868c0c1766b528648febf76628f1fe39050, author = Florian Roth, description = Detetcs the Nanocore RAT, license = https://creativecommons.org/licenses/by-nc/4.0/, score = https://www.sentinelone.com/blogs/teaching-an-old-rat-new-tricks/
Source: 00000000.00000002.337626085.00000000048E8000.00000004.00000001.sdmp, type: MEMORY	Matched rule: NanoCore date = 2014/04, filetype = exe, author = Kevin Breen <kevin@techanarchy.net>, maltype = Remote Access Trojan, ref = http://malwareconfig.com/stats/NanoCore
Source: 00000014.00000002.593637409.000000000439B000.00000004.00000001.sdmp, type: MEMORY	Matched rule: Nanocore_RAT_Gen_2 date = 2016-04-22, hash1 = 755f49a4ffef5b1b62f4b5a5de279868c0c1766b528648febf76628f1fe39050, author = Florian Roth, description = Detetcs the Nanocore RAT, license = https://creativecommons.org/licenses/by-nc/4.0/, score = https://www.sentinelone.com/blogs/teaching-an-old-rat-new-tricks/
Source: 00000014.00000002.593637409.000000000439B000.00000004.00000001.sdmp, type: MEMORY	Matched rule: NanoCore date = 2014/04, filetype = exe, author = Kevin Breen <kevin@techanarchy.net>, maltype = Remote Access Trojan, ref = http://malwareconfig.com/stats/NanoCore
Source: Process Memory Space: MEDUSI492126.pdf.exe PID: 6088, type: MEMORY	Matched rule: Nanocore_RAT_Gen_2 date = 2016-04-22, hash1 = 755f49a4ffef5b1b62f4b5a5de279868c0c1766b528648febf76628f1fe39050, author = Florian Roth, description = Detetcs the Nanocore RAT, license = https://creativecommons.org/licenses/by-nc/4.0/, score = https://www.sentinelone.com/blogs/teaching-an-old-rat-new-tricks/
Source: Process Memory Space: MEDUSI492126.pdf.exe PID: 6088, type: MEMORY	Matched rule: NanoCore date = 2014/04, filetype = exe, author = Kevin Breen <kevin@techanarchy.net>, maltype = Remote Access Trojan, ref = http://malwareconfig.com/stats/NanoCore
Source: Process Memory Space: InstallUtil.exe PID: 5896, type: MEMORY	Matched rule: Nanocore_RAT_Gen_2 date = 2016-04-22, hash1 = 755f49a4ffef5b1b62f4b5a5de279868c0c1766b528648febf76628f1fe39050, author = Florian Roth, description = Detetcs the Nanocore RAT, license = https://creativecommons.org/licenses/by-nc/4.0/, score = https://www.sentinelone.com/blogs/teaching-an-old-rat-new-tricks/
Source: Process Memory Space: InstallUtil.exe PID: 5896, type: MEMORY	Matched rule: NanoCore date = 2014/04, filetype = exe, author = Kevin Breen <kevin@techanarchy.net>, maltype = Remote Access Trojan, ref = http://malwareconfig.com/stats/NanoCore
Source: Process Memory Space: hgjgfddsxaz.exe PID: 6920, type: MEMORY	Matched rule: Nanocore_RAT_Gen_2 date = 2016-04-22, hash1 = 755f49a4ffef5b1b62f4b5a5de279868c0c1766b528648febf76628f1fe39050, author = Florian Roth, description = Detetcs the Nanocore RAT, license = https://creativecommons.org/licenses/by-nc/4.0/, score = https://www.sentinelone.com/blogs/teaching-an-old-rat-new-tricks/
Source: Process Memory Space: hgjgfddsxaz.exe PID: 6920, type: MEMORY	Matched rule: NanoCore date = 2014/04, filetype = exe, author = Kevin Breen <kevin@techanarchy.net>, maltype = Remote Access Trojan, ref = http://malwareconfig.com/stats/NanoCore
Source: 24.2.InstallUtil.exe.58e0000.3.raw.unpack, type: UNPACKEDPE	Matched rule: Nanocore_RAT_Gen_2 date = 2016-04-22, hash1 = 755f49a4ffef5b1b62f4b5a5de279868c0c1766b528648febf76628f1fe39050, author = Florian Roth, description = Detetcs the Nanocore RAT, license = https://creativecommons.org/licenses/by-nc/4.0/, score = https://www.sentinelone.com/blogs/teaching-an-old-rat-new-tricks/
Source: 24.2.InstallUtil.exe.58e0000.3.raw.unpack, type: UNPACKEDPE	Matched rule: Nanocore_RAT_Feb18_1 date = 2018-02-19, hash1 = aa486173e9d594729dbb5626748ce10a75ee966481b68c1b4f6323c827d9658c, author = Florian Roth, description = Detects Nanocore RAT, reference = Internal Research - T2T, license = https://creativecommons.org/licenses/by-nc/4.0/
Source: 24.2.InstallUtil.exe.5900000.4.unpack, type: UNPACKEDPE	Matched rule: Nanocore_RAT_Gen_2 date = 2016-04-22, hash1 = 755f49a4ffef5b1b62f4b5a5de279868c0c1766b528648febf76628f1fe39050, author = Florian Roth, description = Detetcs the Nanocore RAT, license = https://creativecommons.org/licenses/by-nc/4.0/, score = https://www.sentinelone.com/blogs/teaching-an-old-rat-new-tricks/
Source: 24.2.InstallUtil.exe.5900000.4.unpack, type: UNPACKEDPE	Matched rule: Nanocore_RAT_Feb18_1 date = 2018-02-19, hash1 = aa486173e9d594729dbb5626748ce10a75ee966481b68c1b4f6323c827d9658c, author = Florian Roth, description = Detects Nanocore RAT, reference = Internal Research - T2T, license = https://creativecommons.org/licenses/by-nc/4.0/
Source: 24.2.InstallUtil.exe.400000.0.unpack, type: UNPACKEDPE	Matched rule: Nanocore_RAT_Gen_2 date = 2016-04-22, hash1 = 755f49a4ffef5b1b62f4b5a5de279868c0c1766b528648febf76628f1fe39050, author = Florian Roth, description = Detetcs the Nanocore RAT, license = https://creativecommons.org/licenses/by-nc/4.0/, score = https://www.sentinelone.com/blogs/teaching-an-old-rat-new-tricks/
Source: 24.2.InstallUtil.exe.400000.0.unpack, type: UNPACKEDPE	Matched rule: Nanocore_RAT_Feb18_1 date = 2018-02-19, hash1 = aa486173e9d594729dbb5626748ce10a75ee966481b68c1b4f6323c827d9658c, author = Florian Roth, description = Detects Nanocore RAT, reference = Internal Research - T2T, license = https://creativecommons.org/licenses/by-nc/4.0/
Source: 24.2.InstallUtil.exe.400000.0.unpack, type: UNPACKEDPE	Matched rule: NanoCore date = 2014/04, filetype = exe, author = Kevin Breen <kevin@techanarchy.net>, maltype = Remote Access Trojan, ref = http://malwareconfig.com/stats/NanoCore
Source: 24.2.InstallUtil.exe.5900000.4.raw.unpack, type: UNPACKEDPE	Matched rule: Nanocore_RAT_Gen_2 date = 2016-04-22, hash1 = 755f49a4ffef5b1b62f4b5a5de279868c0c1766b528648febf76628f1fe39050, author = Florian Roth, description = Detetcs the Nanocore RAT, license = https://creativecommons.org/licenses/by-nc/4.0/, score = https://www.sentinelone.com/blogs/teaching-an-old-rat-new-tricks/
Source: 24.2.InstallUtil.exe.5900000.4.raw.unpack, type: UNPACKEDPE	Matched rule: Nanocore_RAT_Feb18_1 date = 2018-02-19, hash1 = aa486173e9d594729dbb5626748ce10a75ee966481b68c1b4f6323c827d9658c, author = Florian Roth, description = Detects Nanocore RAT, reference = Internal Research - T2T, license = https://creativecommons.org/licenses/by-nc/4.0/

.NET source code contains calls to encryption/decryption functions

Source: 24.2.InstallUtil.exe.400000.0.unpack, u0023u003dqjIje6jGWLd2EOkfZXKqBbgu003du003d.cs	Cryptographic APIs: 'TransformFinalBlock', 'CreateDecryptor'
Source: 24.2.InstallUtil.exe.400000.0.unpack, u0023u003dqVxXNKnhAcArgJoGGYXiyyQu003du003d.cs	Cryptographic APIs: 'CreateDecryptor'
Source: 24.2.InstallUtil.exe.400000.0.unpack, u0023u003dqVxXNKnhAcArgJoGGYXiyyQu003du003d.cs	Cryptographic APIs: 'TransformFinalBlock'

Classification label

Source: classification engine

Classification label: mal100.troj.evad.winEXE@10/5@6/1

Creates files inside the user directory

Source: C:\Users\user\Desktop\MEDUSI492126.pdf.exe

File created: C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe

Jump to behavior

Creates mutexes

Source: C:\Windows\System32\conhost.exe	Mutant created: \Sessions\1\BaseNamedObjects\Local\SM0:5308:120:WilError_01
Source: C:\Users\user\AppData\Local\Temp\InstallUtil.exe	Mutant created: \Sessions\1\BaseNamedObjects\Global\{4c844ad7-de78-4c04-815b-d468ebb89811}

Creates temporary files

Source: C:\Users\user\Desktop\MEDUSI492126.pdf.exe

File created: C:\Users\user\AppData\Local\Temp\InstallUtil.exe

Jump to behavior

PE file has an executable .text section and no other executable section

Source: MEDUSI492126.pdf.exe

Static PE information: Section: .text IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_READ

Parts of this applications are using the .NET runtime (Probably coded in C#)

Source: C:\Users\user\Desktop\MEDUSI492126.pdf.exe	Section loaded: C:\Windows\assembly\NativeImages_v4.0.30319_32\mscorlib\a152fe02a317a77aeee36903305e8ba6\mscorlib.ni.dll			Jump to behavior
Source: C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe	Section loaded: C:\Windows\assembly\NativeImages_v4.0.30319_32\mscorlib\a152fe02a317a77aeee36903305e8ba6\mscorlib.ni.dll			Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\InstallUtil.exe	Section loaded: C:\Windows\assembly\NativeImages_v4.0.30319_32\mscorlib\a152fe02a317a77aeee36903305e8ba6\mscorlib.ni.dll			Jump to behavior

Reads ini files

Source: C:\Users\user\Desktop\MEDUSI492126.pdf.exe

File read: C:\Users\user\Desktop\desktop.ini

Jump to behavior

Reads software policies

Source: C:\Users\user\Desktop\MEDUSI492126.pdf.exe

Key opened: HKEY_CURRENT_USER\Software\Policies\Microsoft\Windows\Safer\CodeIdentifiers

Jump to behavior

Sample is known by Antivirus

Source: MEDUSI492126.pdf.exe	Virustotal: Detection: 34%
Source: MEDUSI492126.pdf.exe	ReversingLabs: Detection: 20%

Sample reads its own file content

Source: C:\Users\user\Desktop\MEDUSI492126.pdf.exe

File read: C:\Users\user\Desktop\MEDUSI492126.pdf.exe

Jump to behavior

Spawns processes

Source: unknown	Process created: C:\Users\user\Desktop\MEDUSI492126.pdf.exe 'C:\Users\user\Desktop\MEDUSI492126.pdf.exe'
Source: unknown	Process created: C:\Windows\SysWOW64\cmd.exe 'cmd.exe' /c REG ADD 'HKCU\Software\Microsoft\Windows\CurrentVersion\Run' /f /v 'retyujik' /t REG_SZ /d 'C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe'
Source: unknown	Process created: C:\Windows\System32\conhost.exe C:\Windows\system32\conhost.exe 0xffffffff -ForceV1
Source: unknown	Process created: C:\Windows\SysWOW64\reg.exe REG ADD 'HKCU\Software\Microsoft\Windows\CurrentVersion\Run' /f /v 'retyujik' /t REG_SZ /d 'C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe'
Source: unknown	Process created: C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe 'C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe'
Source: unknown	Process created: C:\Users\user\AppData\Local\Temp\InstallUtil.exe C:\Users\user\AppData\Local\Temp\InstallUtil.exe
Source: C:\Users\user\Desktop\MEDUSI492126.pdf.exe	Process created: C:\Windows\SysWOW64\cmd.exe 'cmd.exe' /c REG ADD 'HKCU\Software\Microsoft\Windows\CurrentVersion\Run' /f /v 'retyujik' /t REG_SZ /d 'C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe'			Jump to behavior
Source: C:\Users\user\Desktop\MEDUSI492126.pdf.exe	Process created: C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe 'C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe'			Jump to behavior
Source: C:\Windows\SysWOW64\cmd.exe	Process created: C:\Windows\SysWOW64\reg.exe REG ADD 'HKCU\Software\Microsoft\Windows\CurrentVersion\Run' /f /v 'retyujik' /t REG_SZ /d 'C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe'			Jump to behavior
Source: C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe	Process created: C:\Users\user\AppData\Local\Temp\InstallUtil.exe C:\Users\user\AppData\Local\Temp\InstallUtil.exe			Jump to behavior

Uses an in-process (OLE) Automation server

Source: C:\Users\user\Desktop\MEDUSI492126.pdf.exe

Key value queried: HKEY_LOCAL_MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{20D04FE0-3AEA-1069-A2D8-08002B30309D}\InProcServer32

Jump to behavior

Uses Microsoft Silverlight

Source: C:\Users\user\Desktop\MEDUSI492126.pdf.exe

File opened: C:\Windows\Microsoft.NET\Framework\v4.0.30319\mscorrc.dll

Jump to behavior

PE file contains a COM descriptor data directory

Source: MEDUSI492126.pdf.exe

Static PE information: data directory type: IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR

Contains modern PE file flags such as dynamic base (ASLR) or NX

Source: MEDUSI492126.pdf.exe

Static PE information: NO_SEH, TERMINAL_SERVER_AWARE, DYNAMIC_BASE, NX_COMPAT, HIGH_ENTROPY_VA

Binary contains paths to debug symbols

Source:	Binary string: \??\C:\Windows\exe\InstallUtil.pdb source: InstallUtil.exe, 00000018.00000002.583357176.00000000015C8000.00000004.00000020.sdmp
Source:	Binary string: InstallUtil.pdb\rvr hr_CorExeMainmscoree.dll source: MEDUSI492126.pdf.exe, 00000000.00000003.298714752.0000000008321000.00000004.00000001.sdmp, InstallUtil.exe, 00000018.00000002.580942678.0000000000E02000.00000002.00020000.sdmp, InstallUtil.exe.0.dr
Source:	Binary string: InstallUtil.pdb source: MEDUSI492126.pdf.exe, 00000000.00000003.298714752.0000000008321000.00000004.00000001.sdmp, InstallUtil.exe, InstallUtil.exe.0.dr

Data Obfuscation:

.NET source code contains potential unpacker

Source: 24.2.InstallUtil.exe.400000.0.unpack, u0023u003dqjIje6jGWLd2EOkfZXKqBbgu003du003d.cs	.Net Code: #=q_FL69pQf17BUSAFbWYu1SStMAbdu$R1GJ8VY8UL5_EA= System.Reflection.Assembly System.Reflection.Assembly::Load(System.Byte[])
Source: 24.2.InstallUtil.exe.400000.0.unpack, u0023u003dqxoz66kOqvxr21iYXZYXWiumy9eZGwFWaiX4C5X8aecUu003d.cs	.Net Code: #=qKU0J1fiP8KA33eFK1owekQ== System.Reflection.Assembly System.Reflection.Assembly::Load(System.Byte[])

Uses code obfuscation techniques (call, push, ret)

Source: C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe	Code function: 20_2_04EB05E6 pushfd ; iretd		20_2_04EB0613
Source: C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe	Code function: 20_2_04EB4E9A push es; iretd		20_2_04EB5094
Source: C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe	Code function: 20_2_04EB4B71 push es; iretd		20_2_04EB5094
Source: C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe	Code function: 20_2_04EB0A2A push ds; ret		20_2_04EB0A51

.NET source code contains many randomly named methods

Source: 24.2.InstallUtil.exe.400000.0.unpack, u0023u003dqJT4I5hOweIku0024xYFEeDszbikglXCuquUdu0024v9AXtyq2nsu003d.cs

High entropy of concatenated method names: '#=qBeOBlH6CwHFnQdZWWBgZ_pemudZ6CfCVcfOQtgpeG$Y=', '#=q5v5cLSMFBaxiTtOEjscx86gN2ozXlfytiL6UmXnyWtg=', '#=q_XA5h2lVGHLcY9dK754wKGrOjAm6aBbwPxcUJXgJThJUz83kMbCL53G5uuOLP6Rq', '#=qIFfr$DrKqIieRc688$vylAlBsEnx9Z3$TxvrDsPURfM=', '#=qejgvNXJQvgM2GomZsygLjreyguSPQ29pQHqjR_a0dWk=', '#=qCGokdf0OOxeMJLDkXSfc3NPmwygIQ29RjKQWj$wbNGB9C1pPgma_891QiNyTRXcA', '#=qDqyUVyJLXCtYqhZ0$opqkomqhUBn2WCeEEvGAXlNQ$I=', '#=qdImPAY1o3YhbLtukwCQ91cISaeIEWRKSYrGZ3dTVnkY=', '#=qza7O1AHrroJC7yRIJz4wINR_Sgo4hDpQrj_OYfIrlJE=', '#=q6Ct3QmvVLFC7my$dL1uEiHGmXJ5qCuK4WIhDwfhPTFs='

Source: 24.2.InstallUtil.exe.400000.0.unpack, u0023u003dqWrm21vQ8CBMZP_RBTwpusAu003du003d.cs

High entropy of concatenated method names: '#=qCgU$tDqtOAyz2b$RwfSF7UzBcCAr0rFJWxm16x7Lre0=', '#=qeD3MBfedCIuKIQf9V1u2N3YS4VXE_FOHqw_XAjWtZK8=', '#=q$mvEHEBkZud$AdHPWqsMQnw5Xm5sD4vBSSmqrKuXGOk=', '#=qZaN94n8dM6tBEf$qCdY2kbTZb5BOW8Z134$2tNv7EJs=', '#=qtlZnL8mho$rv1eTFz0Mw9UYFC_yCabEZ0xtVePn6wR5aSHE7ti3UfKg2l7D0_xk8', '#=qVS$QmQjvFfsXSqQAKGSl6HGbkse2SG0XCab4upVjtRJkvhTEk$oIS2I9Zja7id1Q', '#=qxJg7RxTW1v5mnt12xXeJiYJv_bcctbtL2BCD5MjDi45Hlz6t8vwDNTv1Rv7tgIct', '#=qp$ZVC1r9spi890l$D7IwEd3faoKeWHvv42mVq8wIIWM=', '#=qCoWHlVuoVRMkOzC7RZubJCslkxaEWn9yZiIydECf69$ktj0IPD5wAwC2H5Cc8C$L', '#=qqs1moO$mYaS72OXOWe0Z6GycslEb6e9Ipoy7ppW0O5abIp05ajv8doqdJZHlN3cK'

Persistence and Installation Behavior:

Drops PE files

Source: C:\Users\user\Desktop\MEDUSI492126.pdf.exe	File created: C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe			Jump to dropped file
Source: C:\Users\user\Desktop\MEDUSI492126.pdf.exe	File created: C:\Users\user\AppData\Local\Temp\InstallUtil.exe			Jump to dropped file

Boot Survival:

Creates an autostart registry key

Source: C:\Windows\SysWOW64\reg.exe	Registry value created or modified: HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run retyujik			Jump to behavior
Source: C:\Windows\SysWOW64\reg.exe	Registry value created or modified: HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run retyujik			Jump to behavior

Hooking and other Techniques for Hiding and Protection:

Hides that the sample has been downloaded from the Internet (zone.identifier)

Source: C:\Users\user\Desktop\MEDUSI492126.pdf.exe	File opened: C:\Users\user\Desktop\MEDUSI492126.pdf.exe\:Zone.Identifier read attributes | delete			Jump to behavior
Source: C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe	File opened: C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe\:Zone.Identifier read attributes | delete			Jump to behavior

Uses an obfuscated file name to hide its real file extension (double extension)

Source: Possible double extension: pdf.exe

Static PE information: MEDUSI492126.pdf.exe

Monitors certain registry keys / values for changes (often done to protect autostart functionality)

Source: C:\Users\user\Desktop\MEDUSI492126.pdf.exe

Registry key monitored for changes: HKEY_CURRENT_USER_Classes

Jump to behavior

Disables application error messsages (SetErrorMode)

Source: C:\Users\user\Desktop\MEDUSI492126.pdf.exe	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Users\user\Desktop\MEDUSI492126.pdf.exe	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Users\user\Desktop\MEDUSI492126.pdf.exe	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Users\user\Desktop\MEDUSI492126.pdf.exe	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Users\user\Desktop\MEDUSI492126.pdf.exe	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Users\user\Desktop\MEDUSI492126.pdf.exe	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Users\user\Desktop\MEDUSI492126.pdf.exe	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Users\user\Desktop\MEDUSI492126.pdf.exe	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Users\user\Desktop\MEDUSI492126.pdf.exe	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Users\user\Desktop\MEDUSI492126.pdf.exe	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Users\user\Desktop\MEDUSI492126.pdf.exe	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Users\user\Desktop\MEDUSI492126.pdf.exe	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Users\user\Desktop\MEDUSI492126.pdf.exe	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Users\user\Desktop\MEDUSI492126.pdf.exe	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Users\user\Desktop\MEDUSI492126.pdf.exe	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Users\user\Desktop\MEDUSI492126.pdf.exe	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Users\user\Desktop\MEDUSI492126.pdf.exe	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Users\user\Desktop\MEDUSI492126.pdf.exe	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Users\user\Desktop\MEDUSI492126.pdf.exe	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Users\user\Desktop\MEDUSI492126.pdf.exe	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Users\user\Desktop\MEDUSI492126.pdf.exe	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Users\user\Desktop\MEDUSI492126.pdf.exe	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Users\user\Desktop\MEDUSI492126.pdf.exe	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Users\user\Desktop\MEDUSI492126.pdf.exe	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Users\user\Desktop\MEDUSI492126.pdf.exe	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Users\user\Desktop\MEDUSI492126.pdf.exe	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Users\user\Desktop\MEDUSI492126.pdf.exe	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Users\user\Desktop\MEDUSI492126.pdf.exe	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Users\user\Desktop\MEDUSI492126.pdf.exe	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Users\user\Desktop\MEDUSI492126.pdf.exe	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Users\user\Desktop\MEDUSI492126.pdf.exe	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Users\user\Desktop\MEDUSI492126.pdf.exe	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Users\user\Desktop\MEDUSI492126.pdf.exe	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Users\user\Desktop\MEDUSI492126.pdf.exe	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Users\user\Desktop\MEDUSI492126.pdf.exe	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Users\user\Desktop\MEDUSI492126.pdf.exe	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Users\user\Desktop\MEDUSI492126.pdf.exe	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Users\user\Desktop\MEDUSI492126.pdf.exe	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Users\user\Desktop\MEDUSI492126.pdf.exe	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\InstallUtil.exe	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\InstallUtil.exe	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\InstallUtil.exe	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\InstallUtil.exe	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\InstallUtil.exe	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\InstallUtil.exe	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\InstallUtil.exe	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\InstallUtil.exe	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\InstallUtil.exe	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\InstallUtil.exe	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\InstallUtil.exe	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\InstallUtil.exe	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\InstallUtil.exe	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\InstallUtil.exe	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\InstallUtil.exe	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\InstallUtil.exe	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\InstallUtil.exe	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\InstallUtil.exe	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\InstallUtil.exe	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\InstallUtil.exe	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\InstallUtil.exe	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\InstallUtil.exe	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\InstallUtil.exe	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\InstallUtil.exe	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\InstallUtil.exe	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\InstallUtil.exe	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\InstallUtil.exe	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\InstallUtil.exe	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\InstallUtil.exe	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\InstallUtil.exe	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\InstallUtil.exe	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\InstallUtil.exe	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\InstallUtil.exe	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\InstallUtil.exe	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\InstallUtil.exe	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\InstallUtil.exe	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\InstallUtil.exe	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\InstallUtil.exe	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\InstallUtil.exe	Process information set: NOOPENFILEERRORBOX			Jump to behavior

Malware Analysis System Evasion:

Contains capabilities to detect virtual machines

Source: C:\Users\user\Desktop\MEDUSI492126.pdf.exe

File opened / queried: SCSI#CdRom&Ven_NECVMWar&Prod_VMware_SATA_CD00#5&280b647&0&000000#{53f5630d-b6bf-11d0-94f2-00a0c91efb8b}

Jump to behavior

Contains long sleeps (>= 3 min)

Source: C:\Users\user\Desktop\MEDUSI492126.pdf.exe	Thread delayed: delay time: 922337203685477			Jump to behavior
Source: C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe	Thread delayed: delay time: 922337203685477			Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\InstallUtil.exe	Thread delayed: delay time: 922337203685477			Jump to behavior

Found a high number of Window / User specific system calls (may be a loop to detect user behavior)

Source: C:\Users\user\Desktop\MEDUSI492126.pdf.exe	Window / User API: threadDelayed 3727			Jump to behavior
Source: C:\Users\user\Desktop\MEDUSI492126.pdf.exe	Window / User API: threadDelayed 6074			Jump to behavior
Source: C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe	Window / User API: threadDelayed 2679			Jump to behavior
Source: C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe	Window / User API: threadDelayed 7151			Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\InstallUtil.exe	Window / User API: threadDelayed 1313			Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\InstallUtil.exe	Window / User API: threadDelayed 8277			Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\InstallUtil.exe	Window / User API: foregroundWindowGot 543			Jump to behavior

May sleep (evasive loops) to hinder dynamic analysis

Source: C:\Users\user\Desktop\MEDUSI492126.pdf.exe TID: 3012	Thread sleep time: -23980767295822402s >= -30000s			Jump to behavior
Source: C:\Users\user\Desktop\MEDUSI492126.pdf.exe TID: 3012	Thread sleep time: -30000s >= -30000s			Jump to behavior
Source: C:\Users\user\Desktop\MEDUSI492126.pdf.exe TID: 3728	Thread sleep count: 3727 > 30			Jump to behavior
Source: C:\Users\user\Desktop\MEDUSI492126.pdf.exe TID: 3728	Thread sleep count: 6074 > 30			Jump to behavior
Source: C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe TID: 6504	Thread sleep time: -21213755684765971s >= -30000s			Jump to behavior
Source: C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe TID: 6504	Thread sleep time: -30000s >= -30000s			Jump to behavior
Source: C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe TID: 7152	Thread sleep count: 2679 > 30			Jump to behavior
Source: C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe TID: 7152	Thread sleep count: 7151 > 30			Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\InstallUtil.exe TID: 5044	Thread sleep time: -10145709240540247s >= -30000s			Jump to behavior

Sample execution stops while process was sleeping (likely an evasion)

Source: C:\Windows\System32\conhost.exe

Last function: Thread delayed

May try to detect the virtual machine to hinder analysis (VM artifact strings found in memory)

Source: InstallUtil.exe, 00000018.00000002.583704046.00000000015E9000.00000004.00000020.sdmp	Binary or memory string: Hyper-V RAW%SystemRoot%\system32\mswsock.dllkb}
Source: hgjgfddsxaz.exe, 00000014.00000002.592813356.00000000038C1000.00000004.00000001.sdmp	Binary or memory string: VMware
Source: hgjgfddsxaz.exe, 00000014.00000002.592813356.00000000038C1000.00000004.00000001.sdmp	Binary or memory string: vmware svga
Source: MEDUSI492126.pdf.exe, 00000000.00000002.336503892.00000000013AE000.00000004.00000020.sdmp	Binary or memory string: \??\SCSI#CdRom&Ven_NECVMWar&Prod_VMware_SATA_CD00#5&280b647&0&000000#{53f5630d-b6bf-11d0-94f2-00a0c91efb8b}\Device\CdRom0\??\Volume{e6e9dfd8-98f2-11e9-90ce-806e6f6e6963}\DosDevices\D:
Source: MEDUSI492126.pdf.exe, 00000000.00000002.340692963.0000000005650000.00000002.00000001.sdmp, reg.exe, 00000003.00000002.233158420.00000000027B0000.00000002.00000001.sdmp, InstallUtil.exe, 00000018.00000002.593585742.0000000006C40000.00000002.00000001.sdmp	Binary or memory string: A Virtual Machine could not be started because Hyper-V is not installed.
Source: hgjgfddsxaz.exe, 00000014.00000002.592813356.00000000038C1000.00000004.00000001.sdmp	Binary or memory string: vmware
Source: MEDUSI492126.pdf.exe, 00000000.00000002.337274177.0000000003F71000.00000004.00000001.sdmp, hgjgfddsxaz.exe, 00000014.00000002.592813356.00000000038C1000.00000004.00000001.sdmp	Binary or memory string: tpautoconnsvc#Microsoft Hyper-V
Source: MEDUSI492126.pdf.exe, 00000000.00000002.337274177.0000000003F71000.00000004.00000001.sdmp, hgjgfddsxaz.exe, 00000014.00000002.592813356.00000000038C1000.00000004.00000001.sdmp	Binary or memory string: cmd.txtQEMUqemu
Source: MEDUSI492126.pdf.exe, 00000000.00000002.342481616.0000000008341000.00000004.00000001.sdmp	Binary or memory string: \\?\SCSI#CdRom&Ven_NECVMWar&Prod_VMware_SATA_CD00#5&280b647&0&000000#{53f5630d-b6bf-11d0-94f2-00a0c91efb8b}\\\?\Volume{e6e9dfd8-98f2-11e9-90ce-806e6f6e6963}\
Source: MEDUSI492126.pdf.exe, 00000000.00000002.337274177.0000000003F71000.00000004.00000001.sdmp, hgjgfddsxaz.exe, 00000014.00000002.592813356.00000000038C1000.00000004.00000001.sdmp	Binary or memory string: vmusrvc
Source: hgjgfddsxaz.exe, 00000014.00000002.592813356.00000000038C1000.00000004.00000001.sdmp	Binary or memory string: vmsrvc
Source: hgjgfddsxaz.exe, 00000014.00000002.592813356.00000000038C1000.00000004.00000001.sdmp	Binary or memory string: vmtools
Source: hgjgfddsxaz.exe, 00000014.00000002.592813356.00000000038C1000.00000004.00000001.sdmp	Binary or memory string: vmware sata5vmware usb pointing device-vmware vmci bus deviceCvmware virtual s scsi disk device
Source: hgjgfddsxaz.exe, 00000014.00000002.592813356.00000000038C1000.00000004.00000001.sdmp	Binary or memory string: vboxservicevbox)Microsoft Virtual PC
Source: MEDUSI492126.pdf.exe, 00000000.00000002.340692963.0000000005650000.00000002.00000001.sdmp, reg.exe, 00000003.00000002.233158420.00000000027B0000.00000002.00000001.sdmp, InstallUtil.exe, 00000018.00000002.593585742.0000000006C40000.00000002.00000001.sdmp	Binary or memory string: A communication protocol error has occurred between the Hyper-V Host and Guest Compute Service.
Source: MEDUSI492126.pdf.exe, 00000000.00000002.340692963.0000000005650000.00000002.00000001.sdmp, reg.exe, 00000003.00000002.233158420.00000000027B0000.00000002.00000001.sdmp, InstallUtil.exe, 00000018.00000002.593585742.0000000006C40000.00000002.00000001.sdmp	Binary or memory string: The communication protocol version between the Hyper-V Host and Guest Compute Services is not supported.
Source: hgjgfddsxaz.exe, 00000014.00000002.592813356.00000000038C1000.00000004.00000001.sdmp	Binary or memory string: virtual-vmware pointing device
Source: MEDUSI492126.pdf.exe, 00000000.00000002.340692963.0000000005650000.00000002.00000001.sdmp, reg.exe, 00000003.00000002.233158420.00000000027B0000.00000002.00000001.sdmp, InstallUtil.exe, 00000018.00000002.593585742.0000000006C40000.00000002.00000001.sdmp	Binary or memory string: An unknown internal message was received by the Hyper-V Compute Service.

Queries a list of all running processes

Source: C:\Users\user\Desktop\MEDUSI492126.pdf.exe

Process information queried: ProcessInformation

Jump to behavior

Anti Debugging:

Enables debug privileges

Source: C:\Users\user\Desktop\MEDUSI492126.pdf.exe	Process token adjusted: Debug			Jump to behavior
Source: C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe	Process token adjusted: Debug			Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\InstallUtil.exe	Process token adjusted: Debug			Jump to behavior

Creates guard pages, often used to prevent reverse engineering and debugging

Source: C:\Users\user\Desktop\MEDUSI492126.pdf.exe

Memory allocated: page read and write | page guard

Jump to behavior

HIPS / PFW / Operating System Protection Evasion:

Allocates memory in foreign processes

Source: C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe

Memory allocated: C:\Users\user\AppData\Local\Temp\InstallUtil.exe base: 400000 protect: page execute and read and write

Jump to behavior

Injects a PE file into a foreign processes

Source: C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe

Memory written: C:\Users\user\AppData\Local\Temp\InstallUtil.exe base: 400000 value starts with: 4D5A

Jump to behavior

Writes to foreign memory regions

Source: C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe	Memory written: C:\Users\user\AppData\Local\Temp\InstallUtil.exe base: 400000			Jump to behavior
Source: C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe	Memory written: C:\Users\user\AppData\Local\Temp\InstallUtil.exe base: 402000			Jump to behavior
Source: C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe	Memory written: C:\Users\user\AppData\Local\Temp\InstallUtil.exe base: 420000			Jump to behavior
Source: C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe	Memory written: C:\Users\user\AppData\Local\Temp\InstallUtil.exe base: 422000			Jump to behavior
Source: C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe	Memory written: C:\Users\user\AppData\Local\Temp\InstallUtil.exe base: 107C008			Jump to behavior

Creates a process in suspended mode (likely to inject code)

Source: C:\Users\user\Desktop\MEDUSI492126.pdf.exe	Process created: C:\Windows\SysWOW64\cmd.exe 'cmd.exe' /c REG ADD 'HKCU\Software\Microsoft\Windows\CurrentVersion\Run' /f /v 'retyujik' /t REG_SZ /d 'C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe'			Jump to behavior
Source: C:\Users\user\Desktop\MEDUSI492126.pdf.exe	Process created: C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe 'C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe'			Jump to behavior
Source: C:\Windows\SysWOW64\cmd.exe	Process created: C:\Windows\SysWOW64\reg.exe REG ADD 'HKCU\Software\Microsoft\Windows\CurrentVersion\Run' /f /v 'retyujik' /t REG_SZ /d 'C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe'			Jump to behavior
Source: C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe	Process created: C:\Users\user\AppData\Local\Temp\InstallUtil.exe C:\Users\user\AppData\Local\Temp\InstallUtil.exe			Jump to behavior

May try to detect the Windows Explorer process (often used for injection)

Source: hgjgfddsxaz.exe, 00000014.00000002.584939060.0000000001240000.00000002.00000001.sdmp, InstallUtil.exe, 00000018.00000002.593460206.000000000687D000.00000004.00000001.sdmp	Binary or memory string: Program Manager
Source: InstallUtil.exe, 00000018.00000002.585286702.00000000032B7000.00000004.00000001.sdmp	Binary or memory string: Program Managerd
Source: hgjgfddsxaz.exe, 00000014.00000002.584939060.0000000001240000.00000002.00000001.sdmp, InstallUtil.exe, 00000018.00000002.584270428.0000000001BD0000.00000002.00000001.sdmp	Binary or memory string: Shell_TrayWnd
Source: hgjgfddsxaz.exe, 00000014.00000002.584939060.0000000001240000.00000002.00000001.sdmp, InstallUtil.exe, 00000018.00000002.584270428.0000000001BD0000.00000002.00000001.sdmp	Binary or memory string: Progman
Source: InstallUtil.exe, 00000018.00000002.585286702.00000000032B7000.00000004.00000001.sdmp	Binary or memory string: Program ManagerHa+l
Source: hgjgfddsxaz.exe, 00000014.00000002.584939060.0000000001240000.00000002.00000001.sdmp, InstallUtil.exe, 00000018.00000002.584270428.0000000001BD0000.00000002.00000001.sdmp	Binary or memory string: Progmanlock

Language, Device and Operating System Detection:

Queries the volume information (name, serial number etc) of a device

Source: C:\Users\user\Desktop\MEDUSI492126.pdf.exe	Queries volume information: C:\Users\user\Desktop\MEDUSI492126.pdf.exe VolumeInformation			Jump to behavior
Source: C:\Users\user\Desktop\MEDUSI492126.pdf.exe	Queries volume information: C:\Windows\Microsoft.NET\assembly\GAC_MSIL\Microsoft.VisualBasic\v4.0_10.0.0.0__b03f5f7f11d50a3a\Microsoft.VisualBasic.dll VolumeInformation			Jump to behavior
Source: C:\Users\user\Desktop\MEDUSI492126.pdf.exe	Queries volume information: C:\Windows\Microsoft.NET\assembly\GAC_MSIL\System.Drawing\v4.0_4.0.0.0__b03f5f7f11d50a3a\System.Drawing.dll VolumeInformation			Jump to behavior
Source: C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe	Queries volume information: C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe VolumeInformation			Jump to behavior
Source: C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe	Queries volume information: C:\Windows\Microsoft.NET\assembly\GAC_MSIL\Microsoft.VisualBasic\v4.0_10.0.0.0__b03f5f7f11d50a3a\Microsoft.VisualBasic.dll VolumeInformation			Jump to behavior
Source: C:\Users\user\AppData\Roaming\hgjgfddsxaz.exe	Queries volume information: C:\Windows\Microsoft.NET\assembly\GAC_MSIL\System.Drawing\v4.0_4.0.0.0__b03f5f7f11d50a3a\System.Drawing.dll VolumeInformation			Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\InstallUtil.exe	Queries volume information: C:\Users\user\AppData\Local\Temp\InstallUtil.exe VolumeInformation			Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\InstallUtil.exe	Queries volume information: C:\Windows\Microsoft.NET\assembly\GAC_MSIL\System.Windows.Forms\v4.0_4.0.0.0__b77a5c561934e089\System.Windows.Forms.dll VolumeInformation			Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\InstallUtil.exe	Queries volume information: C:\Windows\Microsoft.NET\assembly\GAC_MSIL\System.Drawing\v4.0_4.0.0.0__b03f5f7f11d50a3a\System.Drawing.dll VolumeInformation			Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\InstallUtil.exe	Queries volume information: C:\Windows\Microsoft.NET\assembly\GAC_MSIL\Microsoft.VisualBasic\v4.0_10.0.0.0__b03f5f7f11d50a3a\Microsoft.VisualBasic.dll VolumeInformation			Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\InstallUtil.exe	Queries volume information: C:\Windows\Microsoft.NET\assembly\GAC_MSIL\Accessibility\v4.0_4.0.0.0__b03f5f7f11d50a3a\Accessibility.dll VolumeInformation			Jump to behavior

Queries the cryptographic machine GUID

Source: C:\Users\user\Desktop\MEDUSI492126.pdf.exe

Key value queried: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Cryptography MachineGuid

Jump to behavior

Stealing of Sensitive Information:

Yara detected Nanocore RAT

Source: Yara match	File source: 00000014.00000002.592972004.0000000004172000.00000004.00000001.sdmp, type: MEMORY
Source: Yara match	File source: 00000000.00000002.338088857.0000000004A4A000.00000004.00000001.sdmp, type: MEMORY
Source: Yara match	File source: 00000014.00000002.593076062.0000000004205000.00000004.00000001.sdmp, type: MEMORY
Source: Yara match	File source: 00000018.00000002.589229834.00000000042A9000.00000004.00000001.sdmp, type: MEMORY
Source: Yara match	File source: 00000018.00000002.580480048.0000000000402000.00000040.00000001.sdmp, type: MEMORY
Source: Yara match	File source: 00000018.00000002.592779539.0000000005900000.00000004.00000001.sdmp, type: MEMORY
Source: Yara match	File source: 00000000.00000002.337626085.00000000048E8000.00000004.00000001.sdmp, type: MEMORY
Source: Yara match	File source: 00000014.00000002.593637409.000000000439B000.00000004.00000001.sdmp, type: MEMORY
Source: Yara match	File source: Process Memory Space: MEDUSI492126.pdf.exe PID: 6088, type: MEMORY
Source: Yara match	File source: Process Memory Space: InstallUtil.exe PID: 5896, type: MEMORY
Source: Yara match	File source: Process Memory Space: hgjgfddsxaz.exe PID: 6920, type: MEMORY
Source: Yara match	File source: 24.2.InstallUtil.exe.5900000.4.unpack, type: UNPACKEDPE
Source: Yara match	File source: 24.2.InstallUtil.exe.400000.0.unpack, type: UNPACKEDPE
Source: Yara match	File source: 24.2.InstallUtil.exe.5900000.4.raw.unpack, type: UNPACKEDPE

Remote Access Functionality:

Detected Nanocore Rat

Source: MEDUSI492126.pdf.exe, 00000000.00000002.338088857.0000000004A4A000.00000004.00000001.sdmp	String found in binary or memory: NanoCore.ClientPluginHost
Source: hgjgfddsxaz.exe, 00000014.00000002.593637409.000000000439B000.00000004.00000001.sdmp	String found in binary or memory: NanoCore.ClientPluginHost
Source: InstallUtil.exe, 00000018.00000002.585286702.00000000032B7000.00000004.00000001.sdmp	String found in binary or memory: NanoCore.ClientPluginHost
Source: InstallUtil.exe, 00000018.00000002.585286702.00000000032B7000.00000004.00000001.sdmp	String found in binary or memory: <Module>mscorlibMicrosoft.VisualBasicMyApplicationNanoCore.MyMyComputerMyProjectMyWebServicesThreadSafeObjectProvider`1IClientNetworkNanoCore.ClientPluginIClientDataIClientAppIClientDataHostNanoCore.ClientPluginHostIClientNetworkHostIClientUIHostIClientLoggingHostIClientAppHostIClientNameObjectCollectionNanoCoreIClientReadOnlyNameObjectCollectionClientInvokeDelegateMicrosoft.VisualBasic.ApplicationServicesApplicationBase.ctorMicrosoft.VisualBasic.DevicesComputerSystemObject.cctorget_Computerm_ComputerObjectProviderget_Applicationm_AppObjectProviderUserget_Userm_UserObjectProviderget_WebServicesm_MyWebServicesObjectProviderApplicationWebServicesEqualsoGetHashCodeTypeGetTypeToStringCreate__Instance__TinstanceDispose__Instance__get_GetInstanceMicrosoft.VisualBasic.MyServices.InternalContextValue`1m_ContextGetInstanceReadPacketpipeNameparamsPipeCreatedPipeClosedConnectionStateChangedconnectedConnectionFailedhostportBuildingHostCacheVariableChangednameClientSettingChangedPluginUninstallingClientUninstallingget_Variablesget_ClientSettingsget_BuilderSettingsVariablesClientSettingsBuilderSettingsget_ConnectedClosePipePipeExistsRebuildHostCacheAddHostEntryDisconnectSendToServercompressConnectedInvokemethodstateLogClientMessagemessageExceptionLogClientExceptionexsiteRestartShutdownDisableProtectionRestoreProtectionUninstallEntryExistsSystem.Collections.GenericKeyValuePair`2GetEntriesGetValuedefaultValueSetValuevalueRemoveValueMulticastDelegateTargetObjectTargetMethodIAsyncResultAsyncCallbackBeginInvokeDelegateCallbackDelegateAsyncStateEndInvokeDelegateAsyncResultSystem.ComponentModelEditorBrowsableAttributeEditorBrowsableStateSystem.CodeDom.CompilerGeneratedCodeAttributeSystem.DiagnosticsDebuggerHiddenAttributeMicrosoft.VisualBasic.CompilerServicesStandardModuleAttributeHideModuleNameAttributeSystem.ComponentModel.DesignHelpKeywordAttributeSystem.Runtime.CompilerServicesRuntimeHelpersGetObjectValueRuntimeTypeHandleGetTypeFromHandleActivatorCreateInstanceMyGroupCollectionAttributeget_Valueset_ValueSystem.Runtime.InteropServicesComVisibleAttributeParamArrayAttributeCompilationRelaxationsAttributeRuntimeCompatibilityAttributeSystem.ReflectionAssemblyFileVersionAttributeGuidAttributeAssemblyTrademarkAttributeAssemblyCopyrightAttributeAssemblyProductAttributeAssemblyCompanyAttributeAssemblyDescriptionAttributeAssemblyTitleAttributeClientPluginClientPlugin.dll

Yara detected Nanocore RAT

Source: Yara match	File source: 00000014.00000002.592972004.0000000004172000.00000004.00000001.sdmp, type: MEMORY
Source: Yara match	File source: 00000000.00000002.338088857.0000000004A4A000.00000004.00000001.sdmp, type: MEMORY
Source: Yara match	File source: 00000014.00000002.593076062.0000000004205000.00000004.00000001.sdmp, type: MEMORY
Source: Yara match	File source: 00000018.00000002.589229834.00000000042A9000.00000004.00000001.sdmp, type: MEMORY
Source: Yara match	File source: 00000018.00000002.580480048.0000000000402000.00000040.00000001.sdmp, type: MEMORY
Source: Yara match	File source: 00000018.00000002.592779539.0000000005900000.00000004.00000001.sdmp, type: MEMORY
Source: Yara match	File source: 00000000.00000002.337626085.00000000048E8000.00000004.00000001.sdmp, type: MEMORY
Source: Yara match	File source: 00000014.00000002.593637409.000000000439B000.00000004.00000001.sdmp, type: MEMORY
Source: Yara match	File source: Process Memory Space: MEDUSI492126.pdf.exe PID: 6088, type: MEMORY
Source: Yara match	File source: Process Memory Space: InstallUtil.exe PID: 5896, type: MEMORY
Source: Yara match	File source: Process Memory Space: hgjgfddsxaz.exe PID: 6920, type: MEMORY
Source: Yara match	File source: 24.2.InstallUtil.exe.5900000.4.unpack, type: UNPACKEDPE
Source: Yara match	File source: 24.2.InstallUtil.exe.400000.0.unpack, type: UNPACKEDPE
Source: Yara match	File source: 24.2.InstallUtil.exe.5900000.4.raw.unpack, type: UNPACKEDPE