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Windows Analysis Report
Rechung-R1663322504.exe

Overview

General Information

Sample Name:	Rechung-R1663322504.exe
Analysis ID:	829392
MD5:	11b5b208de7a85b46104a0597c5da7dc
SHA1:	c578bc317e666159cbfc191cb4e50de2de03ab79
SHA256:	0a80ba418f561098477e18cc42ddfc31796b2be3166ff6c99967b98388fe4826
Tags:	DEUexegeosignedSnakeKeylogger
Infos:

Detection

GuLoader

Score:	60
Range:	0 - 100
Whitelisted:	false
Confidence:	100%

Signatures

Multi AV Scanner detection for submitted file

Yara detected GuLoader

Tries to detect virtualization through RDTSC time measurements

Uses 32bit PE files

Drops PE files

Contains functionality to shutdown / reboot the system

Uses code obfuscation techniques (call, push, ret)

Creates files inside the system directory

Detected potential crypto function

PE / OLE file has an invalid certificate

Contains functionality to dynamically determine API calls

Abnormal high CPU Usage

Contains functionality for read data from the clipboard

Classification

Process Tree

System is w10x64

Rechung-R1663322504.exe (PID: 3332 cmdline: C:\Users\user\Desktop\Rechung-R1663322504.exe MD5: 11B5B208DE7A85B46104A0597C5DA7DC)

cleanup

Malware Threat Intel

Provided by

Name	Description	Attribution	Blogpost URLs	Link
CloudEyE, GuLoader	CloudEyE (initially named GuLoader) is a small VB5/6 downloader. It typically downloads RATs/Stealers, such as Agent Tesla, Arkei/Vidar, Formbook, Lokibot, Netwire and Remcos, often but not always from Google Drive. The downloaded payload is xored.	No Attribution	https://0x00sec.org/t/analyzing-modern-malware-techniques-part-3/18943 https://blog.malwarebytes.com/scams/2020/08/sba-phishing-scams-from-malware-to-advanced-social-engineering/ https://blog.morphisec.com/guloader-the-rat-downloader https://blog.vincss.net/2020/05/re014-guloader-antivm-techniques.html https://cert-agid.gov.it/news/malware/tecniche-per-semplificare-lanalisi-del-malware-guloader/	https://malpedia.caad.fkie.fraunhofer.de/details/win.cloudeye

Yara Signatures

Memory Dumps

Source	Rule	Description	Author	Strings
00000000.00000002.774741365.00000000064AB000.00000040.00001000.00020000.00000000.sdmp	JoeSecurity_GuLoader_2	Yara detected GuLoader	Joe Security

Joe Sandbox Signatures

Click to jump to signature section

Show All Signature Results

AV Detection

Multi AV Scanner detection for submitted file

Source: Rechung-R1663322504.exe	ReversingLabs: Detection: 30%
Source: Rechung-R1663322504.exe	Virustotal: Detection: 37%			Perma Link

Source: Rechung-R1663322504.exe

Static PE information: RELOCS_STRIPPED, EXECUTABLE_IMAGE, LINE_NUMS_STRIPPED, LOCAL_SYMS_STRIPPED, 32BIT_MACHINE

Source: Rechung-R1663322504.exe

Static PE information: DYNAMIC_BASE, NX_COMPAT, NO_SEH, TERMINAL_SERVER_AWARE

Source: C:\Users\user\Desktop\Rechung-R1663322504.exe	Code function: 0_2_00402862 FindFirstFileW,
Source: C:\Users\user\Desktop\Rechung-R1663322504.exe	Code function: 0_2_0040596D GetTempPathW,DeleteFileW,lstrcatW,lstrcatW,lstrlenW,FindFirstFileW,FindNextFileW,FindClose,
Source: C:\Users\user\Desktop\Rechung-R1663322504.exe	Code function: 0_2_004065A2 FindFirstFileW,FindClose,

Source: C:\Users\user\Desktop\Rechung-R1663322504.exe	File opened: C:\Users\user
Source: C:\Users\user\Desktop\Rechung-R1663322504.exe	File opened: C:\Users\user\AppData\Roaming\Microsoft
Source: C:\Users\user\Desktop\Rechung-R1663322504.exe	File opened: C:\Users\user\AppData
Source: C:\Users\user\Desktop\Rechung-R1663322504.exe	File opened: C:\Users\user\AppData\Roaming\Microsoft\Windows\Printer Shortcuts
Source: C:\Users\user\Desktop\Rechung-R1663322504.exe	File opened: C:\Users\user\AppData\Roaming
Source: C:\Users\user\Desktop\Rechung-R1663322504.exe	File opened: C:\Users\user\AppData\Roaming\Microsoft\Windows

Source: Rechung-R1663322504.exe	String found in binary or memory: http://crl.certum.pl/ctnca.crl0k
Source: Rechung-R1663322504.exe	String found in binary or memory: http://crl.certum.pl/ctnca2.crl0l
Source: Rechung-R1663322504.exe	String found in binary or memory: http://crl.certum.pl/ctsca2021.crl0o
Source: Rechung-R1663322504.exe	String found in binary or memory: http://nsis.sf.net/NSIS_ErrorError
Source: Rechung-R1663322504.exe	String found in binary or memory: http://repository.certum.pl/ctnca.cer09
Source: Rechung-R1663322504.exe	String found in binary or memory: http://repository.certum.pl/ctnca2.cer09
Source: Rechung-R1663322504.exe	String found in binary or memory: http://repository.certum.pl/ctsca2021.cer0
Source: Rechung-R1663322504.exe	String found in binary or memory: http://subca.ocsp-certum.com01
Source: Rechung-R1663322504.exe	String found in binary or memory: http://subca.ocsp-certum.com02
Source: Rechung-R1663322504.exe	String found in binary or memory: http://subca.ocsp-certum.com05
Source: Rechung-R1663322504.exe	String found in binary or memory: http://www.certum.pl/CPS0

Source: C:\Users\user\Desktop\Rechung-R1663322504.exe

Code function: 0_2_00405402 GetDlgItem,GetDlgItem,GetDlgItem,GetDlgItem,GetClientRect,GetSystemMetrics,SendMessageW,SendMessageW,SendMessageW,SendMessageW,SendMessageW,SendMessageW,ShowWindow,ShowWindow,GetDlgItem,SendMessageW,SendMessageW,SendMessageW,GetDlgItem,CreateThread,FindCloseChangeNotification,ShowWindow,ShowWindow,ShowWindow,ShowWindow,SendMessageW,CreatePopupMenu,AppendMenuW,GetWindowRect,TrackPopupMenu,SendMessageW,OpenClipboard,EmptyClipboard,GlobalAlloc,GlobalLock,SendMessageW,GlobalUnlock,SetClipboardData,CloseClipboard,

Source: Rechung-R1663322504.exe

Static PE information: RELOCS_STRIPPED, EXECUTABLE_IMAGE, LINE_NUMS_STRIPPED, LOCAL_SYMS_STRIPPED, 32BIT_MACHINE

Source: C:\Users\user\Desktop\Rechung-R1663322504.exe

Code function: 0_2_00403350 EntryPoint,SetErrorMode,GetVersion,lstrlenA,#17,OleInitialize,SHGetFileInfoW,GetCommandLineW,GetModuleHandleW,CharNextW,GetTempPathW,GetTempPathW,GetWindowsDirectoryW,lstrcatW,GetTempPathW,lstrcatW,SetEnvironmentVariableW,SetEnvironmentVariableW,SetEnvironmentVariableW,DeleteFileW,OleUninitialize,ExitProcess,lstrcatW,lstrcatW,lstrcatW,lstrcmpiW,SetCurrentDirectoryW,DeleteFileW,CopyFileW,CloseHandle,GetCurrentProcess,OpenProcessToken,LookupPrivilegeValueW,AdjustTokenPrivileges,ExitWindowsEx,ExitProcess,

Source: C:\Users\user\Desktop\Rechung-R1663322504.exe

File created: C:\Windows\SysWOW64\Arbejdsglderne

Jump to behavior

Source: C:\Users\user\Desktop\Rechung-R1663322504.exe

Code function: 0_2_00404C3F

Source: Rechung-R1663322504.exe

Static PE information: invalid certificate

Source: C:\Users\user\Desktop\Rechung-R1663322504.exe

Process Stats: CPU usage > 98%

Source: Rechung-R1663322504.exe	ReversingLabs: Detection: 30%
Source: Rechung-R1663322504.exe	Virustotal: Detection: 37%

Source: C:\Users\user\Desktop\Rechung-R1663322504.exe

File read: C:\Users\user\Desktop\Rechung-R1663322504.exe

Jump to behavior

Source: Rechung-R1663322504.exe

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

Source: C:\Users\user\Desktop\Rechung-R1663322504.exe

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

Source: C:\Users\user\Desktop\Rechung-R1663322504.exe

Key value queried: HKEY_LOCAL_MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f486a52-3cb1-48fd-8f50-b8dc300d9f9d}\InProcServer32

Source: C:\Users\user\Desktop\Rechung-R1663322504.exe

File created: C:\Users\user\Socialdirektrer

Jump to behavior

Source: C:\Users\user\Desktop\Rechung-R1663322504.exe

File created: C:\Users\user\AppData\Local\Temp\nsv3DAD.tmp

Jump to behavior

Source: classification engine

Classification label: mal60.troj.evad.winEXE@1/8@0/0

Source: C:\Users\user\Desktop\Rechung-R1663322504.exe

Code function: 0_2_004020FE CoCreateInstance,

Source: C:\Users\user\Desktop\Rechung-R1663322504.exe

File read: C:\Users\desktop.ini

Jump to behavior

Source: C:\Users\user\Desktop\Rechung-R1663322504.exe

Code function: 0_2_004046C3 GetDlgItem,SetWindowTextW,SHBrowseForFolderW,CoTaskMemFree,lstrcmpiW,lstrcatW,SetDlgItemTextW,GetDiskFreeSpaceW,MulDiv,SetDlgItemTextW,

Source: Rechung-R1663322504.exe

Static PE information: DYNAMIC_BASE, NX_COMPAT, NO_SEH, TERMINAL_SERVER_AWARE

Data Obfuscation

Yara detected GuLoader

Source: Yara match

File source: 00000000.00000002.774741365.00000000064AB000.00000040.00001000.00020000.00000000.sdmp, type: MEMORY

Source: C:\Users\user\Desktop\Rechung-R1663322504.exe

Code function: 0_2_10002DE0 push eax; ret

Source: C:\Users\user\Desktop\Rechung-R1663322504.exe

Code function: 0_2_10001B18 GlobalAlloc,lstrcpyW,lstrcpyW,GlobalFree,GlobalFree,GlobalFree,GlobalFree,GlobalFree,GlobalFree,lstrcpyW,GetModuleHandleW,LoadLibraryW,GetProcAddress,lstrlenW,

Source: C:\Users\user\Desktop\Rechung-R1663322504.exe	File created: C:\Users\user\AppData\Local\Temp\nsw3E4B.tmp\System.dll			Jump to dropped file
Source: C:\Users\user\Desktop\Rechung-R1663322504.exe	File created: C:\Users\user\AppData\Local\Temp\nsw3E4B.tmp\AdvSplash.dll			Jump to dropped file

Source: C:\Users\user\Desktop\Rechung-R1663322504.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Desktop\Rechung-R1663322504.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Desktop\Rechung-R1663322504.exe	Process information set: NOOPENFILEERRORBOX

Malware Analysis System Evasion

Tries to detect virtualization through RDTSC time measurements

Source: C:\Users\user\Desktop\Rechung-R1663322504.exe

RDTSC instruction interceptor: First address: 00000000066FD201 second address: 00000000066FD201 instructions: 0x00000000 rdtsc 0x00000002 cmp ebx, ecx 0x00000004 jc 00007FB1345B668Ah 0x00000006 inc ebp 0x00000007 inc ebx 0x00000008 rdtsc

Source: C:\Users\user\Desktop\Rechung-R1663322504.exe	Code function: 0_2_00402862 FindFirstFileW,
Source: C:\Users\user\Desktop\Rechung-R1663322504.exe	Code function: 0_2_0040596D GetTempPathW,DeleteFileW,lstrcatW,lstrcatW,lstrlenW,FindFirstFileW,FindNextFileW,FindClose,
Source: C:\Users\user\Desktop\Rechung-R1663322504.exe	Code function: 0_2_004065A2 FindFirstFileW,FindClose,

Source: C:\Users\user\Desktop\Rechung-R1663322504.exe	API call chain: ExitProcess graph end node
Source: C:\Users\user\Desktop\Rechung-R1663322504.exe	API call chain: ExitProcess graph end node

Source: C:\Users\user\Desktop\Rechung-R1663322504.exe	File opened: C:\Users\user
Source: C:\Users\user\Desktop\Rechung-R1663322504.exe	File opened: C:\Users\user\AppData\Roaming\Microsoft
Source: C:\Users\user\Desktop\Rechung-R1663322504.exe	File opened: C:\Users\user\AppData
Source: C:\Users\user\Desktop\Rechung-R1663322504.exe	File opened: C:\Users\user\AppData\Roaming\Microsoft\Windows\Printer Shortcuts
Source: C:\Users\user\Desktop\Rechung-R1663322504.exe	File opened: C:\Users\user\AppData\Roaming
Source: C:\Users\user\Desktop\Rechung-R1663322504.exe	File opened: C:\Users\user\AppData\Roaming\Microsoft\Windows

Source: C:\Users\user\Desktop\Rechung-R1663322504.exe

Code function: 0_2_10001B18 GlobalAlloc,lstrcpyW,lstrcpyW,GlobalFree,GlobalFree,GlobalFree,GlobalFree,GlobalFree,GlobalFree,lstrcpyW,GetModuleHandleW,LoadLibraryW,GetProcAddress,lstrlenW,

Source: C:\Users\user\Desktop\Rechung-R1663322504.exe

Mitre Att&ck Matrix

Initial Access	Execution	Persistence	Privilege Escalation	Defense Evasion	Credential Access	Discovery	Lateral Movement	Collection	Exfiltration	Command and Control	Network Effects	Remote Service Effects	Impact
Valid Accounts	1 Native API	Path Interception	1 Access Token Manipulation	11 Masquerading	OS Credential Dumping	1 Security Software Discovery	Remote Services	1 Archive Collected Data	Exfiltration Over Other Network Medium	1 Encrypted Channel	Eavesdrop on Insecure Network Communication	Remotely Track Device Without Authorization	1 System Shutdown/Reboot
Default Accounts	Scheduled Task/Job	Boot or Logon Initialization Scripts	Boot or Logon Initialization Scripts	1 Access Token Manipulation	LSASS Memory	3 File and Directory Discovery	Remote Desktop Protocol	1 Clipboard Data	Exfiltration Over Bluetooth	Junk Data	Exploit SS7 to Redirect Phone Calls/SMS	Remotely Wipe Data Without Authorization	Device Lockout
Domain Accounts	At (Linux)	Logon Script (Windows)	Logon Script (Windows)	1 Obfuscated Files or Information	Security Account Manager	13 System Information Discovery	SMB/Windows Admin Shares	Data from Network Shared Drive	Automated Exfiltration	Steganography	Exploit SS7 to Track Device Location	Obtain Device Cloud Backups	Delete Device Data

Behavior Graph

Hide Legend

Legend:

Process
Signature
Created File
DNS/IP Info
Is Dropped
Is Windows Process
Number of created Registry Values
Number of created Files
Visual Basic
Delphi
Java
.Net C# or VB.NET
C, C++ or other language
Is malicious
Internet

Source	Detection	Scanner	Label	Link
Rechung-R1663322504.exe	31%	ReversingLabs	Win32.Trojan.Tnega
Rechung-R1663322504.exe	38%	Virustotal		Browse

Dropped Files

Source	Detection	Scanner	Link
C:\Users\user\AppData\Local\Temp\nsw3E4B.tmp\AdvSplash.dll	0%	ReversingLabs
C:\Users\user\AppData\Local\Temp\nsw3E4B.tmp\AdvSplash.dll	3%	Virustotal	Browse
C:\Users\user\AppData\Local\Temp\nsw3E4B.tmp\System.dll	0%	ReversingLabs
C:\Users\user\AppData\Local\Temp\nsw3E4B.tmp\System.dll	1%	Virustotal	Browse

Source	Detection	Scanner	Label
http://subca.ocsp-certum.com05	0%	URL Reputation	safe
http://subca.ocsp-certum.com02	0%	URL Reputation	safe
http://subca.ocsp-certum.com01	0%	URL Reputation	safe

Name	Source	Malicious	Antivirus Detection	Reputation
http://crl.certum.pl/ctnca2.crl0l	Rechung-R1663322504.exe	false		high
http://repository.certum.pl/ctnca2.cer09	Rechung-R1663322504.exe	false		high
http://crl.certum.pl/ctsca2021.crl0o	Rechung-R1663322504.exe	false		high
http://repository.certum.pl/ctnca.cer09	Rechung-R1663322504.exe	false		high
http://nsis.sf.net/NSIS_ErrorError	Rechung-R1663322504.exe	false		high
http://repository.certum.pl/ctsca2021.cer0	Rechung-R1663322504.exe	false		high
http://crl.certum.pl/ctnca.crl0k	Rechung-R1663322504.exe	false		high
http://subca.ocsp-certum.com05	Rechung-R1663322504.exe	false	URL Reputation: safe	unknown
http://www.certum.pl/CPS0	Rechung-R1663322504.exe	false		high
http://subca.ocsp-certum.com02	Rechung-R1663322504.exe	false	URL Reputation: safe	unknown
http://subca.ocsp-certum.com01	Rechung-R1663322504.exe	false	URL Reputation: safe	unknown

World Map of Contacted IPs

⊘No contacted IP infos

General Information

Joe Sandbox Version:	37.0.0 Beryl
Analysis ID:	829392
Start date and time:	2023-03-18 05:25:10 +01:00
Joe Sandbox Product:	CloudBasic
Overall analysis duration:	0h 8m 50s
Hypervisor based Inspection enabled:	false
Report type:	light
Cookbook file name:	default.jbs
Analysis system description:	Windows 10 64 bit v1803 with Office Professional Plus 2016, Chrome 104, IE 11, Adobe Reader DC 19, Java 8 Update 211
Number of analysed new started processes analysed:	15
Number of new started drivers analysed:	0
Number of existing processes analysed:	0
Number of existing drivers analysed:	0
Number of injected processes analysed:	0
Technologies:	HCA enabled EGA enabled HDC enabled AMSI enabled
Analysis Mode:	default
Analysis stop reason:	Timeout
Sample file name:	Rechung-R1663322504.exe
Detection:	MAL
Classification:	mal60.troj.evad.winEXE@1/8@0/0
EGA Information:	Successful, ratio: 100%
HDC Information:	Successful, ratio: 62.5% (good quality ratio 61%) Quality average: 88% Quality standard deviation: 22%
HCA Information:	Successful, ratio: 100% Number of executed functions: 0 Number of non-executed functions: 0
Cookbook Comments:	Found application associated with file extension: .exe Override analysis time to 240s for sample files taking high CPU consumption

Warnings

Exclude process from analysis (whitelisted): MpCmdRun.exe, audiodg.exe, WMIADAP.exe, SgrmBroker.exe, conhost.exe, backgroundTaskHost.exe, svchost.exe
Excluded domains from analysis (whitelisted): www.bing.com, fs.microsoft.com, ctldl.windowsupdate.com
Not all processes where analyzed, report is missing behavior information
Report size getting too big, too many NtQueryValueKey calls found.
Report size getting too big, too many NtSetInformationFile calls found.

Process:	C:\Users\user\Desktop\Rechung-R1663322504.exe
File Type:	PE32 executable (DLL) (GUI) Intel 80386, for MS Windows
Category:	dropped
Size (bytes):	6144
Entropy (8bit):	4.496995234059773
Encrypted:	false
SSDEEP:	96:1IUNaXnnXyEIPtXvZhr5RwiULuxDtJ1+wolpE:1Ix3XyEwXvZh1RwnLUDtf+I
MD5:	E8B67A37FB41D54A7EDA453309D45D97
SHA1:	96BE9BF7A988D9CEA06150D57CD1DE19F1FEC19E
SHA-256:	2AD232BCCF4CA06CF13475AF87B510C5788AA790785FD50509BE483AFC0E0BCF
SHA-512:	20EFFAE18EEBB2DF90D3186A281FA9233A97998F226F7ADEAD0784FBC787FEEE419973962F8369D8822C1BBCDFB6E7948D9CA6086C9CF90190C8AB3EC97F4C38
Malicious:	false
Antivirus:	Antivirus: ReversingLabs, Detection: 0% Antivirus: Virustotal, Detection: 3%, Browse
Reputation:	low
Preview:	MZ......................@...............................................!..L.!This program cannot be run in DOS mode....$.......+.Y.o.7Eo.7Eo.7Eo.6EF.7E..jEf.7E;..Em.7E..3En.7ERicho.7E........PE..L.....uY...........!................`........ ...............................P......................................`$..E.... ..d............................@..$.................................................... ...............................text............................... ..`.rdata....... ......................@..@.data........0......................@....reloc.......@......................@..B................................................................................................................................................................................................................................................................................................................................................................................................................

C:\Users\user\AppData\Local\Temp\nsw3E4B.tmp\System.dll

Download File

Process:	C:\Users\user\Desktop\Rechung-R1663322504.exe
File Type:	PE32 executable (DLL) (GUI) Intel 80386, for MS Windows
Category:	dropped
Size (bytes):	11776
Entropy (8bit):	5.659384359264642
Encrypted:	false
SSDEEP:	192:ex24sihno00Wfl97nH6BenXwWobpWBTtvShJ5omi7dJWjOlESlS:h8QIl972eXqlWBFSt273YOlEz
MD5:	8B3830B9DBF87F84DDD3B26645FED3A0
SHA1:	223BEF1F19E644A610A0877D01EADC9E28299509
SHA-256:	F004C568D305CD95EDBD704166FCD2849D395B595DFF814BCC2012693527AC37
SHA-512:	D13CFD98DB5CA8DC9C15723EEE0E7454975078A776BCE26247228BE4603A0217E166058EBADC68090AFE988862B7514CB8CB84DE13B3DE35737412A6F0A8AC03
Malicious:	false
Antivirus:	Antivirus: ReversingLabs, Detection: 0% Antivirus: Virustotal, Detection: 1%, Browse
Reputation:	moderate, very likely benign file
Preview:	MZ......................@...............................................!..L.!This program cannot be run in DOS mode....$.......1...u.u.u...s.u.a....r.!..q....t....t.Richu.........................PE..L.....uY...........!..... ...........'.......0...............................`.......................................2.......0..P............................P.......................................................0..X............................text............ .................. ..`.rdata..S....0.......$..............@..@.data...x....@.......(..............@....reloc..`....P.......*..............@..B................................................................................................................................................................................................................................................................................................................................................................................

C:\Users\user\Separationerne.lnk

Download File

Process:	C:\Users\user\Desktop\Rechung-R1663322504.exe
File Type:	MS Windows shortcut, Item id list present, Has Relative path, Has Working directory, ctime=Sun Dec 31 23:06:32 1600, mtime=Sun Dec 31 23:06:32 1600, atime=Sun Dec 31 23:06:32 1600, length=0, window=hide
Category:	dropped
Size (bytes):	1274
Entropy (8bit):	3.128346526396717
Encrypted:	false
SSDEEP:	24:8Cf4eWLgD4/BV02De69kqy+pepAFpd7aB:8JXgDszheOTpeeHwB
MD5:	E3BDEAA5B7F272426C9B086E815EF5B8
SHA1:	3789A45941BF4410EBB314C46BBD6DC33AB0D7A5
SHA-256:	41AEE8966E4BBC0AF245942852F14EAF81BAFDD67DC2F512DED93F569FE9A7B1
SHA-512:	ED5D406C653590590015CF3DCFC60F1E014DD132551116CE4F79BFFB181F52F81168E621FF661AA9C5E04B3207ADF3EB71A6CF8013C49E7E7FD21BF28BC5961A
Malicious:	false
Reputation:	low
Preview:	L..................F.............................................................P.O. .:i.....+00.../C:\...................P.1...........Users.<............................................U.s.e.r.s.....P.1...........user.<............................................h.a.r.d.z.....V.1...........AppData.@............................................A.p.p.D.a.t.a.....V.1...........Roaming.@............................................R.o.a.m.i.n.g.....\.1...........Microsoft.D............................................M.i.c.r.o.s.o.f.t.....V.1...........Windows.@............................................W.i.n.d.o.w.s.....t.1...........Printer Shortcuts.T............................................P.r.i.n.t.e.r. .S.h.o.r.t.c.u.t.s... .t.2...........Genoptagelsen.Phi.T............................................G.e.n.o.p.t.a.g.e.l.s.e.n...P.h.i... ...G...\.A.p.p.D.a.t.a.\.R.o.a.m.i.n.g.\.M.i.c.r.o.s.o.f.t.\.W.i.n.d.o.w.s.\.P.r.i.n.t.e.r. .S.h.o.r.t.c.u.t.s.\.G.e.n.o.p.t.a.g.e.l.s.e

C:\Users\user\Socialdirektrer\Fornices\Vingummis\Flannelled\Yndighed\Adventure_20.bmp

Download File

Process:	C:\Users\user\Desktop\Rechung-R1663322504.exe
File Type:	JPEG image data, JFIF standard 1.01, resolution (DPI), density 100x100, segment length 16, Exif Standard: [TIFF image data, big-endian, direntries=3], baseline, precision 8, 110x110, components 3
Category:	dropped
Size (bytes):	10534
Entropy (8bit):	7.884822059718216
Encrypted:	false
SSDEEP:	192:oXRZxdt62XpqRigPYtY0CfKTQlh5NKW6F5oJxfskCjGmXa6Pbplv26Zzkq:KRfdt62X+XoElh/KW6ifskEGeaIp9zkq
MD5:	A4530760E13B17372AE0D8CB48F66D0D
SHA1:	AA21564FA3A847E59402B62D3F600DDA5046A926
SHA-256:	F37F7A75DC27903EA88D1A3912DFB9123CA217E2467EB6D5DC966F60DC7F9DB7
SHA-512:	E42C32B412CD4AA560EFED98050F4B2F858190EA8BF56A81311F24C6F0751E2E397F624777E759BC80B1D34BF0AA9ECF6356E26D553D22E503A53CEF76797D43
Malicious:	false
Reputation:	low
Preview:	......JFIF.....d.d.....:Exif..MM.......Q...........Q..........aQ..........a.......C....................................................................C.......................................................................n.n.."............................................................}........!1A..Qa."q.2....#B...R..$3br........%&'()456789:CDEFGHIJSTUVWXYZcdefghijstuvwxyz..............................................................................................................................w.......!1..AQ.aq."2...B.....#3R..br...$4.%.....&'()*56789:CDEFGHIJSTUVWXYZcdefghijstuvwxyz....................................................................................?.....(..9...k....X.....&.2.Z.......k~I.....e...J...}..<..M..8..........".../...O.u...........5.h...71]ZZ......v..Yc...<.i'..m2_..>..#...K...,.qq.^<2\|D.V...j..ae.0Mu.^K..#k..3<."FV$HV.)..vmG..H........z.\..#......3_..Wo.g.>.o..........\|...V.}.Ho.]...q#..W667Z`..)..l._E'.....+\.w..K....O.o..5......4O..~.

C:\Users\user\Socialdirektrer\Fornices\Vingummis\Flannelled\Yndighed\Dialektforskningen134.Luk

Download File

Process:	C:\Users\user\Desktop\Rechung-R1663322504.exe
File Type:	ASCII text, with very long lines (35012), with no line terminators
Category:	dropped
Size (bytes):	35012
Entropy (8bit):	2.713079331895783
Encrypted:	false
SSDEEP:	768:YOYEtjBKsUje7ciMsO9Z/mAXEEEJu+am7Iuxsr6mPpHOEEEEESW0ymwpTiq:d4/98AEMRNPpHrViq
MD5:	F75A78EE11492D9F9146075023D485D3
SHA1:	772AE864C11AE2C45834F681EFDF662BBD28268B
SHA-256:	5916C8773319EA24B225C76FE361D360360CE03E1F61E2E86387514A185BDAF9
SHA-512:	BB2D74E9F7D7F02E682E302B115C280C886F4E99789F4E5A198E7B2E973FFBE788559140CC2625EE8F754831497E67038CA327196EC14370968B47828863BD0D
Malicious:	false
Reputation:	low
Preview:	0000000000000F00007200F400C000D900DDDD00009D005D5D5D000E0E0E0E00C20000005F5F5F00E4E4E400000000009B0013000026262600A900008C006D00323200360000001717008700C600B4B400007900B0B0B0B0000000006F6F004C4C00590000003F000041414100004C00C1C1C10000004A4A00000000AAAA0000000000F100393900000000430000AC00F6000093002600C5C5000000002900006700002C000000AE00000067000100000000004D005D5D5D0000E0E0004646464600C90000202000D8000086005700BDBD00007000212100FC0006060606000800680000000000D8D800A700006060009200A4004600D000CCCC00E9E90000005700F600888888002700CCCC00000000006F6F00D9003D3D3D009F000000000000DDDDDD0000B2000000001B0000CD003D3D00060606005D5D0000B5B5B5B5009898007100DE000F000000F0F0F000BDBD00000000001212120000004800E1003A3A3A0056565600000000B600000000130027272700E9000000009696004B00770078000000A8000000DCDC0007070700C8005959595959000D000000840000740000EAEA00D9D9D9D900000000A70000B70000828282820000780082820000000000000051515100787800002222008E0000DB00001E0000DD006C00FA00000000AAAA000000950000002500CF00000000A000

C:\Users\user\Socialdirektrer\Vandspildets.Shi37

Download File

Process:	C:\Users\user\Desktop\Rechung-R1663322504.exe
File Type:	data
Category:	dropped
Size (bytes):	225168
Entropy (8bit):	7.3676127973119225
Encrypted:	false
SSDEEP:	3072:NOUzxidFkCI6+rXNfJEow2a5KTa49D1bdzeDZ/7SkPtnWpA2Or1/nD9kS/fmi:s9dFrI6ifJLwV0/9Jd4RSYtWpBanD9kG
MD5:	BAFC11E1543369B58D7852857D986EFA
SHA1:	A00AD13ECA7F98C1CBBC7AE32151D3878DD2BBB0
SHA-256:	F8D1014289006D2ACCAB3D5A1C36CD867B4D6BEC50781365175B4FF8323A5E81
SHA-512:	69883FDF36A90C35625D74BF7FE5808AFD1F88314EF60FAB7785C443BD992F72656BB727E3E44503266BECC28A48E0BAF7DF70A6C5CAA10D2B2DFED28C07AA02
Malicious:	false
Reputation:	low
Preview:	.................................t..cc..................dd.@@.rr..ZZ.====........vvvvv.""...i..SS...........((.v........dd...............K.................m.................OO..........@@...................00._.............XX...EE..$$.HHHHHH...............................m...................................................nn...........oo.....hhh.................__.............^.7........#.....1..-.......H...J.........???........\|..>.^.W.......................H..^^^^^^..???.CCC..n.........nnn.xx................;..................E.....&&&&..............hhh....W............................?.ss....B.b....III.......#...............q........................Q.s...#.........%...nn.EE..............\|\|.......................___...........p......R.88.........................$..........LL......k........................I...''.pp.....:.aa.......]..............&.....jj..`.JJ................................//....e...^^^^^^^^^^^....2.p..........I..................$......oo...............E..............

C:\Users\user\Socialdirektrer\media-floppy-symbolic.symbolic.png

Download File

Process:	C:\Users\user\Desktop\Rechung-R1663322504.exe
File Type:	PNG image data, 16 x 16, 8-bit/color RGBA, non-interlaced
Category:	dropped
Size (bytes):	183
Entropy (8bit):	6.337608034945541
Encrypted:	false
SSDEEP:	3:yionv//thPl9vt3lAnsrtxBllTV00EDgZ1uP6he3LFIY8roNQh/e9OuTB+Mg1J7d:6v/lhPysY0EeDyLiRroCh/0B+v1MC1jp
MD5:	293D1D4F18C3A918A44FAD289715E950
SHA1:	BD92A45835DD693FE8D0B72F296FE0134D46B876
SHA-256:	553F673950BE4DE71377A297050888D0BE5A997DB334781994C3265EDA30C7B3
SHA-512:	E62D45E30997EB18EB3C45BC1574C75462DC4CC36144D4E529F917B6091ADD14F91779F5C428458CEA129EF37B27FDDBBCEA8E5005563DC2AABCB370BEDF2E8C
Malicious:	false
Preview:	.PNG........IHDR................a....sBIT....\|.d....nIDAT8.....0...wp(.....,....J.A[.O....i.4..x d..F.(.N.$ .su.w.C.~..XyZ.\|.....k....z`../..aA.<.>....j.. ...=....z....IEND.B`.

C:\Users\user\Socialdirektrer\mk.txt

Download File

Process:	C:\Users\user\Desktop\Rechung-R1663322504.exe
File Type:	Unicode text, UTF-8 (with BOM) text, with CRLF line terminators
Category:	dropped
Size (bytes):	8934
Entropy (8bit):	4.259244159879149
Encrypted:	false
SSDEEP:	192:ia3g0F7SHayJ5vKVEB3Bxg5GteGIxpWNMll39oWvt/i4drxJ4MrZEXSW:iWg0zyJlKVEB3A6SM2mWvt/i4dtJ4MNO
MD5:	71D42ABE45803AC9C3DA5FCACF9CC59C
SHA1:	98A1049906972ABB480ABAF1F5658C1B8C10F27C
SHA-256:	78F5CB9345AB258CF745EAA90D44C7A7A73D3FE06EA182B1298A989135FFA11F
SHA-512:	A0096575D6F911CC2600DAC93D6FD7AA8D9E2F9F71A92571A76996FB4C47BDB714BBA453C862B3F42CC5F4BAAF2AED1DFF3C9D6F84A3E2053FF2037C56AB85A5
Malicious:	false
Preview:	.;!@Lang2@!UTF-8!..; 4.09 : Gabriel Stojanoski..;..;..;..;..;..;..;..;..;..;..0..7-Zip..Macedonian..............401....................&....&....&...................&.........440.... &........ .&............................&........&........&...................... ....... ...... .. ........?..500..&..........&.......&........&.........&........&.......540..&.............. &.............. &........&........&.......&.............&....... .......&........ .......&.........&...... ................&....... .............&.................&.................... .................... ..........&........600............ &................ ...

Static File Info

General

File type:	PE32 executable (GUI) Intel 80386, for MS Windows, Nullsoft Installer self-extracting archive
Entropy (8bit):	7.1116261135004395
TrID:	Win32 Executable (generic) a (10002005/4) 99.96% Generic Win/DOS Executable (2004/3) 0.02% DOS Executable Generic (2002/1) 0.02% Autodesk FLIC Image File (extensions: flc, fli, cel) (7/3) 0.00%
File name:	Rechung-R1663322504.exe
File size:	416280
MD5:	11b5b208de7a85b46104a0597c5da7dc
SHA1:	c578bc317e666159cbfc191cb4e50de2de03ab79
SHA256:	0a80ba418f561098477e18cc42ddfc31796b2be3166ff6c99967b98388fe4826
SHA512:	c79e0deeb1686edc5bfe2db026f423277740fe816a674a3111fb36fd4813825a080048b44d03e92310db526a8c791259684778f8dea0861cd9b26e2f5f0b5d23
SSDEEP:	6144:16bAcJtT+SdoujpZM5DMJ+VGM1lMwJ1OPH7USLahNcfM9rQ09j3V/PySssz:2APSbyDMOJrOPH7UfnpCSD
TLSH:	B694BFA0F620D0DADCB417F16C9FD9211AE76EECE4E0220F65A73259AD736D3051F24A
File Content Preview:	MZ......................@...............................................!..L.!This program cannot be run in DOS mode....$........!`G.@...@...@../OQ..@...@..I@../OS..@...c>..@..+F...@..Rich.@..........................PE..L.....uY.................d....:....

File Icon


Icon Hash:	f169e8e4e4ccca88

Static PE Info

General

Entrypoint:	0x403350
Entrypoint Section:	.text
Digitally signed:	true
Imagebase:	0x400000
Subsystem:	windows gui
Image File Characteristics:	RELOCS_STRIPPED, EXECUTABLE_IMAGE, LINE_NUMS_STRIPPED, LOCAL_SYMS_STRIPPED, 32BIT_MACHINE
DLL Characteristics:	DYNAMIC_BASE, NX_COMPAT, NO_SEH, TERMINAL_SERVER_AWARE
Time Stamp:	0x59759518 [Mon Jul 24 06:35:04 2017 UTC]
TLS Callbacks:
CLR (.Net) Version:
OS Version Major:	4
OS Version Minor:	0
File Version Major:	4
File Version Minor:	0
Subsystem Version Major:	4
Subsystem Version Minor:	0
Import Hash:	b34f154ec913d2d2c435cbd644e91687

Authenticode Signature

Signature Valid:	false
Signature Issuer:	E=Departmentalizations@Trisulphide193.Lok, OU="Pasteuriseringens Eternellerne ", O=Stikprvestandardafvigelsernes, L=Dividing Creek, S=New Jersey, C=US
Signature Validation Error:	A certificate chain processed, but terminated in a root certificate which is not trusted by the trust provider
Error Number:	-2146762487
Not Before, Not After	12/27/2022 3:19:02 AM 12/26/2025 3:19:02 AM
Subject Chain	E=Departmentalizations@Trisulphide193.Lok, OU="Pasteuriseringens Eternellerne ", O=Stikprvestandardafvigelsernes, L=Dividing Creek, S=New Jersey, C=US
Version:	3
Thumbprint MD5:	1F7F4BF42A830708AC95921509004FCC
Thumbprint SHA-1:	54B3D870C522C1CA544E3D38597EEC9DC6D3C3A0
Thumbprint SHA-256:	ED0BD8E407BDD2EB9D4B7BDFEC49D761B0F85D212BDFDC1A3F9981BBA4AD638B
Serial:	4122AFC051A99F02AE188FBC961AC5C36F876297

Entrypoint Preview

Instruction
sub esp, 000002D4h
push ebx
push esi
push edi
push 00000020h
pop edi
xor ebx, ebx
push 00008001h
mov dword ptr [esp+14h], ebx
mov dword ptr [esp+10h], 0040A2E0h
mov dword ptr [esp+1Ch], ebx
call dword ptr [004080A8h]
call dword ptr [004080A4h]
and eax, BFFFFFFFh
cmp ax, 00000006h
mov dword ptr [007A8A2Ch], eax
je 00007FB134BEE563h
push ebx
call 00007FB134BF17F9h
cmp eax, ebx
je 00007FB134BEE559h
push 00000C00h
call eax
mov esi, 004082B0h
push esi
call 00007FB134BF1773h
push esi
call dword ptr [00408150h]
lea esi, dword ptr [esi+eax+01h]
cmp byte ptr [esi], 00000000h
jne 00007FB134BEE53Ch
push 0000000Ah
call 00007FB134BF17CCh
push 00000008h
call 00007FB134BF17C5h
push 00000006h
mov dword ptr [007A8A24h], eax
call 00007FB134BF17B9h
cmp eax, ebx
je 00007FB134BEE561h
push 0000001Eh
call eax
test eax, eax
je 00007FB134BEE559h
or byte ptr [007A8A2Fh], 00000040h
push ebp
call dword ptr [00408044h]
push ebx
call dword ptr [004082A0h]
mov dword ptr [007A8AF8h], eax
push ebx
lea eax, dword ptr [esp+34h]
push 000002B4h
push eax
push ebx
push 0079FEE0h
call dword ptr [00408188h]
push 0040A2C8h

Rich Headers

Programming Language:

[EXP] VC++ 6.0 SP5 build 8804

Data Directories

Name	Virtual Address	Virtual Size	Is in Section
IMAGE_DIRECTORY_ENTRY_EXPORT	0x0	0x0
IMAGE_DIRECTORY_ENTRY_IMPORT	0x84fc	0xa0	.rdata
IMAGE_DIRECTORY_ENTRY_RESOURCE	0x3d3000	0x281f0	.rsrc
IMAGE_DIRECTORY_ENTRY_EXCEPTION	0x0	0x0
IMAGE_DIRECTORY_ENTRY_SECURITY	0x63778	0x22a0	.data
IMAGE_DIRECTORY_ENTRY_BASERELOC	0x0	0x0
IMAGE_DIRECTORY_ENTRY_DEBUG	0x0	0x0
IMAGE_DIRECTORY_ENTRY_COPYRIGHT	0x0	0x0
IMAGE_DIRECTORY_ENTRY_GLOBALPTR	0x0	0x0
IMAGE_DIRECTORY_ENTRY_TLS	0x0	0x0
IMAGE_DIRECTORY_ENTRY_LOAD_CONFIG	0x0	0x0
IMAGE_DIRECTORY_ENTRY_BOUND_IMPORT	0x0	0x0
IMAGE_DIRECTORY_ENTRY_IAT	0x8000	0x2b0	.rdata
IMAGE_DIRECTORY_ENTRY_DELAY_IMPORT	0x0	0x0
IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR	0x0	0x0
IMAGE_DIRECTORY_ENTRY_RESERVED	0x0	0x0

Sections

Name	Virtual Address	Virtual Size	Raw Size	Xored PE	ZLIB Complexity	File Type	Entropy	Characteristics
.text	0x1000	0x63c8	0x6400	False	0.6766015625	data	6.504099201068482	IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ
.rdata	0x8000	0x138e	0x1400	False	0.4509765625	data	5.146454805063938	IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ
.data	0xa000	0x39eb38	0x600	unknown	unknown	unknown	unknown	IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE
.ndata	0x3a9000	0x2a000	0x0	False	0	empty	0.0	IMAGE_SCN_CNT_UNINITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE
.rsrc	0x3d3000	0x281f0	0x28200	False	0.35579731308411217	data	5.085440369030725	IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ

Resources

Name	RVA	Size	Type	Language	Country
RT_ICON	0x3d3310	0x10828	Device independent bitmap graphic, 128 x 256 x 32, image size 65536	English	United States
RT_ICON	0x3e3b38	0x94a8	Device independent bitmap graphic, 96 x 192 x 32, image size 36864	English	United States
RT_ICON	0x3ecfe0	0x5488	Device independent bitmap graphic, 72 x 144 x 32, image size 20736	English	United States
RT_ICON	0x3f2468	0x4228	Device independent bitmap graphic, 64 x 128 x 32, image size 16384	English	United States
RT_ICON	0x3f6690	0x25a8	Device independent bitmap graphic, 48 x 96 x 32, image size 9216	English	United States
RT_ICON	0x3f8c38	0x10a8	Device independent bitmap graphic, 32 x 64 x 32, image size 4096	English	United States
RT_ICON	0x3f9ce0	0x988	Device independent bitmap graphic, 24 x 48 x 32, image size 2304	English	United States
RT_ICON	0x3fa668	0x468	Device independent bitmap graphic, 16 x 32 x 32, image size 1024	English	United States
RT_DIALOG	0x3faad0	0x120	data	English	United States
RT_DIALOG	0x3fabf0	0x11c	data	English	United States
RT_DIALOG	0x3fad10	0xc4	data	English	United States
RT_DIALOG	0x3fadd8	0x60	data	English	United States
RT_GROUP_ICON	0x3fae38	0x76	data	English	United States
RT_MANIFEST	0x3faeb0	0x33e	XML 1.0 document, ASCII text, with very long lines (830), with no line terminators	English	United States

Imports

DLL	Import
KERNEL32.dll	SetEnvironmentVariableW, SetFileAttributesW, Sleep, GetTickCount, GetFileSize, GetModuleFileNameW, GetCurrentProcess, CopyFileW, SetCurrentDirectoryW, GetFileAttributesW, GetWindowsDirectoryW, GetTempPathW, GetCommandLineW, GetVersion, SetErrorMode, lstrlenW, lstrcpynW, GetDiskFreeSpaceW, ExitProcess, GetShortPathNameW, CreateThread, GetLastError, CreateDirectoryW, CreateProcessW, RemoveDirectoryW, lstrcmpiA, CreateFileW, GetTempFileNameW, WriteFile, lstrcpyA, MoveFileExW, lstrcatW, GetSystemDirectoryW, GetProcAddress, GetModuleHandleA, GetExitCodeProcess, WaitForSingleObject, lstrcmpiW, MoveFileW, GetFullPathNameW, SetFileTime, SearchPathW, CompareFileTime, lstrcmpW, CloseHandle, ExpandEnvironmentStringsW, GlobalFree, GlobalLock, GlobalUnlock, GlobalAlloc, FindFirstFileW, FindNextFileW, DeleteFileW, SetFilePointer, ReadFile, FindClose, lstrlenA, MulDiv, MultiByteToWideChar, WideCharToMultiByte, GetPrivateProfileStringW, WritePrivateProfileStringW, FreeLibrary, LoadLibraryExW, GetModuleHandleW
USER32.dll	GetSystemMenu, SetClassLongW, EnableMenuItem, IsWindowEnabled, SetWindowPos, GetSysColor, GetWindowLongW, SetCursor, LoadCursorW, CheckDlgButton, GetMessagePos, LoadBitmapW, CallWindowProcW, IsWindowVisible, CloseClipboard, SetClipboardData, EmptyClipboard, OpenClipboard, ScreenToClient, GetWindowRect, GetDlgItem, GetSystemMetrics, SetDlgItemTextW, GetDlgItemTextW, MessageBoxIndirectW, CharPrevW, CharNextA, wsprintfA, DispatchMessageW, PeekMessageW, ReleaseDC, EnableWindow, InvalidateRect, SendMessageW, DefWindowProcW, BeginPaint, GetClientRect, FillRect, DrawTextW, EndDialog, RegisterClassW, SystemParametersInfoW, CreateWindowExW, GetClassInfoW, DialogBoxParamW, CharNextW, ExitWindowsEx, DestroyWindow, GetDC, SetTimer, SetWindowTextW, LoadImageW, SetForegroundWindow, ShowWindow, IsWindow, SetWindowLongW, FindWindowExW, TrackPopupMenu, AppendMenuW, CreatePopupMenu, EndPaint, CreateDialogParamW, SendMessageTimeoutW, wsprintfW, PostQuitMessage
GDI32.dll	SelectObject, SetBkMode, CreateFontIndirectW, SetTextColor, DeleteObject, GetDeviceCaps, CreateBrushIndirect, SetBkColor
SHELL32.dll	SHGetSpecialFolderLocation, ShellExecuteExW, SHGetPathFromIDListW, SHBrowseForFolderW, SHGetFileInfoW, SHFileOperationW
ADVAPI32.dll	AdjustTokenPrivileges, RegCreateKeyExW, RegOpenKeyExW, SetFileSecurityW, OpenProcessToken, LookupPrivilegeValueW, RegEnumValueW, RegDeleteKeyW, RegDeleteValueW, RegCloseKey, RegSetValueExW, RegQueryValueExW, RegEnumKeyW
COMCTL32.dll	ImageList_Create, ImageList_AddMasked, ImageList_Destroy
ole32.dll	OleUninitialize, OleInitialize, CoTaskMemFree, CoCreateInstance

Possible Origin

Language of compilation system	Country where language is spoken	Map
English	United States

Target ID:	0
Start time:	05:26:04
Start date:	18/03/2023
Path:	C:\Users\user\Desktop\Rechung-R1663322504.exe
Wow64 process (32bit):	true
Commandline:	C:\Users\user\Desktop\Rechung-R1663322504.exe
Imagebase:	0x400000
File size:	416280 bytes
MD5 hash:	11B5B208DE7A85B46104A0597C5DA7DC
Has elevated privileges:	true
Has administrator privileges:	true
Programmed in:	C, C++ or other language
Yara matches:	Rule: JoeSecurity_GuLoader_2, Description: Yara detected GuLoader, Source: 00000000.00000002.774741365.00000000064AB000.00000040.00001000.00020000.00000000.sdmp, Author: Joe Security
Reputation:	low

Disassembly

⊘No disassembly

Description:	Adversaries may directly interact with the native OS application programming interface (API) to execute behaviors. Native APIs provide a controlled means of calling low-level OS services within the kernel, such as those involving hardware/devices, memory, and processes.These native APIs are leveraged by the OS during system boot (when other system components are not yet initialized) as well as carrying out tasks and requests during routine operations.
Tactics:	Execution
Data Sources:	API monitoring, Loaded DLLs, Process monitoring, System calls
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may modify access tokens to operate under a different user or system security context to perform actions and bypass access controls. Windows uses access tokens to determine the ownership of a running process. A user can manipulate access tokens to make a running process appear as though it is the child of a different process or belongs to someone other than the user that started the process. When this occurs, the process also takes on the security context associated with the new token.
Tactics:	Defense Evasion, Privilege Escalation
Data Sources:	API monitoring, Access tokens, Authentication logs, Process command-line parameters, Process monitoring, Windows event logs
Platforms:	Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may attempt to manipulate features of their artifacts to make them appear legitimate or benign to users and/or security tools. Masquerading occurs when the name or location of an object, legitimate or malicious, is manipulated or abused for the sake of evading defenses and observation. This may include manipulating file metadata, tricking users into misidentifying the file type, and giving legitimate task or service names.
Tactics:	Defense Evasion
Data Sources:	Binary file metadata, File monitoring, Process command-line parameters, Process monitoring
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may attempt to make an executable or file difficult to discover or analyze by encrypting, encoding, or otherwise obfuscating its contents on the system or in transit. This is common behavior that can be used across different platforms and the network to evade defenses.
Tactics:	Defense Evasion
Data Sources:	Binary file metadata, Email gateway, Environment variable, File monitoring, Malware reverse engineering, Network intrusion detection system, Network protocol analysis, Process command-line parameters, Process monitoring, Process use of network, SSL/TLS inspection, Windows event logs
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may attempt to get a listing of security software, configurations, defensive tools, and sensors that are installed on a system or in a cloud environment. This may include things such as firewall rules and anti-virus. Adversaries may use the information from Security Software Discovery during automated discovery to shape follow-on behaviors, including whether or not the adversary fully infects the target and/or attempts specific actions.
Tactics:	Discovery
Data Sources:	AWS CloudTrail logs, Azure activity logs, File monitoring, Process command-line parameters, Process monitoring, Stackdriver logs
Platforms:	AWS, Azure, Azure AD, GCP, Linux, macOS, Office 365, SaaS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may enumerate files and directories or may search in specific locations of a host or network share for certain information within a file system. Adversaries may use the information from File and Directory Discovery during automated discovery to shape follow-on behaviors, including whether or not the adversary fully infects the target and/or attempts specific actions.
Tactics:	Discovery
Data Sources:	File monitoring, Process command-line parameters, Process monitoring
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	An adversary may attempt to get detailed information about the operating system and hardware, including version, patches, hotfixes, service packs, and architecture. Adversaries may use the information from System Information Discovery during automated discovery to shape follow-on behaviors, including whether or not the adversary fully infects the target and/or attempts specific actions.
Tactics:	Discovery
Data Sources:	AWS CloudTrail logs, Azure activity logs, Process command-line parameters, Process monitoring, Stackdriver logs
Platforms:	AWS, Azure, GCP, Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	An adversary may compress and/or encrypt data that is collected prior to exfiltration. Compressing the data can help to obfuscate the collected data and minimize the amount of data sent over the network. Encryption can be used to hide information that is being exfiltrated from detection or make exfiltration less conspicuous upon inspection by a defender.
Tactics:	Collection
Data Sources:	Binary file metadata, File monitoring, Process command-line parameters, Process monitoring
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may collect data stored in the clipboard from users copying information within or between applications.
Tactics:	Collection
Data Sources:	API monitoring
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may employ a known encryption algorithm to conceal command and control traffic rather than relying on any inherent protections provided by a communication protocol. Despite the use of a secure algorithm, these implementations may be vulnerable to reverse engineering if secret keys are encoded and/or generated within malware samples/configuration files.
Tactics:	Command and Control
Data Sources:	Malware reverse engineering, Netflow/Enclave netflow, Packet capture, Process monitoring, Process use of network, SSL/TLS inspection
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may shutdown/reboot systems to interrupt access to, or aid in the destruction of, those systems. Operating systems may contain commands to initiate a shutdown/reboot of a machine. In some cases, these commands may also be used to initiate a shutdown/reboot of a remote computer.Shutting down or rebooting systems may disrupt access to computer resources for legitimate users.
Tactics:	Impact
Data Sources:	Process command-line parameters, Process monitoring, Windows event logs
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Behavior Section

Behavior Chronological

Disassembly

Uncategorized

Graph

Loading Joe Sandbox Report ...

Warning!

Windows Analysis Report Rechung-R1663322504.exe

Overview

General Information

Detection

Signatures

Classification

Process Tree

Malware Threat Intel

Malware Configuration

Yara Signatures

Memory Dumps

Sigma Signatures

Snort Signatures

Joe Sandbox Signatures

AV Detection

Compliance

Spreading

Networking

Key, Mouse, Clipboard, Microphone and Screen Capturing

System Summary

Data Obfuscation

Persistence and Installation Behavior

Hooking and other Techniques for Hiding and Protection

Malware Analysis System Evasion

Anti Debugging

Language, Device and Operating System Detection

Mitre Att&ck Matrix

Behavior Graph

Screenshots

Thumbnails

Antivirus, Machine Learning and Genetic Malware Detection

Initial Sample

Dropped Files

Unpacked PE Files

Domains

URLs

Domains and IPs

Contacted Domains

URLs from Memory and Binaries

World Map of Contacted IPs

General Information

Warnings

Simulations

Behavior and APIs

Joe Sandbox View / Context

IPs

Domains

ASNs

JA3 Fingerprints

Dropped Files

Created / dropped Files

C:\Users\user\AppData\Local\Temp\nsw3E4B.tmp\AdvSplash.dll

C:\Users\user\AppData\Local\Temp\nsw3E4B.tmp\System.dll

C:\Users\user\Separationerne.lnk

C:\Users\user\Socialdirektrer\Fornices\Vingummis\Flannelled\Yndighed\Adventure_20.bmp

C:\Users\user\Socialdirektrer\Fornices\Vingummis\Flannelled\Yndighed\Dialektforskningen134.Luk

C:\Users\user\Socialdirektrer\Vandspildets.Shi37

C:\Users\user\Socialdirektrer\media-floppy-symbolic.symbolic.png

C:\Users\user\Socialdirektrer\mk.txt

Static File Info

General

File Icon

Static PE Info

General

Authenticode Signature

Entrypoint Preview

Rich Headers

Data Directories

Sections

Resources

Imports

Possible Origin

Network Behavior

Windows Analysis Report
Rechung-R1663322504.exe