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Windows Analysis Report
98765434567890.exe

Overview

General Information

Sample Name:	98765434567890.exe
Analysis ID:	755084
MD5:	1c4e3e615e3596572062bca5ec498d41
SHA1:	40365b3026ba2fca699462877fc106d58d2406c2
SHA256:	622163e09e5ad5324887c02d7834628d7213015fc48d286d69b4a90fa17a772d
Tags:	exesigned
Infos:

Detection

GuLoader

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

Signatures

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)

PE file contains sections with non-standard names

Detected potential crypto function

Stores files to the Windows start menu directory

PE / OLE file has an invalid certificate

PE file contains more sections than normal

Contains functionality to dynamically determine API calls

Found dropped PE file which has not been started or loaded

Abnormal high CPU Usage

Contains functionality for read data from the clipboard

Classification

Process Tree

System is w10x64

98765434567890.exe (PID: 5852 cmdline: C:\Users\user\Desktop\98765434567890.exe MD5: 1C4E3E615E3596572062BCA5EC498D41)

cleanup

Yara Signatures

Memory Dumps

Source	Rule	Description	Author
00000000.00000002.765192426.0000000003410000.00000040.00001000.00020000.00000000.sdmp	JoeSecurity_GuLoader_2	Yara detected GuLoader	Joe Security
00000000.00000002.764218177.0000000000840000.00000004.00000020.00020000.00000000.sdmp	JoeSecurity_GuLoader_3	Yara detected GuLoader	Joe Security
Process Memory Space: 98765434567890.exe PID: 5852	JoeSecurity_GuLoader_3	Yara detected GuLoader	Joe Security

Joe Sandbox Signatures

Click to jump to signature section

Show All Signature Results

Source: 98765434567890.exe

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

Source: 98765434567890.exe

Static PE information: DYNAMIC_BASE, NX_COMPAT, NO_SEH, TERMINAL_SERVER_AWARE

Source: C:\Users\user\Desktop\98765434567890.exe	Code function: 0_2_00406555 FindFirstFileW,FindClose,
Source: C:\Users\user\Desktop\98765434567890.exe	Code function: 0_2_00405A03 CloseHandle,GetTempPathW,DeleteFileW,lstrcatW,lstrcatW,lstrlenW,FindFirstFileW,FindNextFileW,FindClose,
Source: C:\Users\user\Desktop\98765434567890.exe	Code function: 0_2_0040287E FindFirstFileW,

Source: 98765434567890.exe	String found in binary or memory: http://nsis.sf.net/NSIS_ErrorError
Source: 98765434567890.exe	String found in binary or memory: http://s.symcb.com/universal-root.crl0
Source: 98765434567890.exe	String found in binary or memory: http://s.symcd.com06
Source: 98765434567890.exe	String found in binary or memory: http://ts-aia.ws.symantec.com/sha256-tss-ca.cer0(
Source: 98765434567890.exe	String found in binary or memory: http://ts-crl.ws.symantec.com/sha256-tss-ca.crl0
Source: 98765434567890.exe	String found in binary or memory: http://ts-ocsp.ws.symantec.com0;
Source: 98765434567890.exe	String found in binary or memory: https://d.symcb.com/cps0%
Source: 98765434567890.exe	String found in binary or memory: https://d.symcb.com/rpa0
Source: 98765434567890.exe	String found in binary or memory: https://d.symcb.com/rpa0.

Source: C:\Users\user\Desktop\98765434567890.exe

Code function: 0_2_004054B0 GetDlgItem,GetDlgItem,GetDlgItem,GetDlgItem,GetClientRect,GetSystemMetrics,SendMessageW,SendMessageW,SendMessageW,SendMessageW,SendMessageW,SendMessageW,ShowWindow,ShowWindow,GetDlgItem,SendMessageW,SendMessageW,SendMessageW,GetDlgItem,CreateThread,CloseHandle,ShowWindow,ShowWindow,ShowWindow,ShowWindow,SendMessageW,CreatePopupMenu,AppendMenuW,GetWindowRect,TrackPopupMenu,SendMessageW,OpenClipboard,EmptyClipboard,GlobalAlloc,GlobalLock,SendMessageW,GlobalUnlock,SetClipboardData,CloseClipboard,

Source: 98765434567890.exe

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

Source: C:\Users\user\Desktop\98765434567890.exe

Code function: 0_2_0040344A 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\98765434567890.exe	Code function: 0_2_00404CED
Source: C:\Users\user\Desktop\98765434567890.exe	Code function: 0_2_004068DA

Source: 98765434567890.exe

Static PE information: invalid certificate

Source: libgiognutls.dll.0.dr

Static PE information: Number of sections : 11 > 10

Source: C:\Users\user\Desktop\98765434567890.exe

Process Stats: CPU usage > 98%

Source: C:\Users\user\Desktop\98765434567890.exe

File read: C:\Users\user\Desktop\98765434567890.exe

Jump to behavior

Source: 98765434567890.exe

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

Source: C:\Users\user\Desktop\98765434567890.exe

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

Source: C:\Users\user\Desktop\98765434567890.exe

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

Source: C:\Users\user\Desktop\98765434567890.exe

File created: C:\Users\user~1\AppData\Local\Temp\nsf214F.tmp

Jump to behavior

Source: classification engine

Classification label: mal60.troj.evad.winEXE@1/4@0/0

Source: C:\Users\user\Desktop\98765434567890.exe

Code function: 0_2_00402104 CoCreateInstance,

Source: C:\Users\user\Desktop\98765434567890.exe

File read: C:\Users\desktop.ini

Jump to behavior

Source: C:\Users\user\Desktop\98765434567890.exe

Code function: 0_2_00404771 GetDlgItem,SetWindowTextW,SHBrowseForFolderW,CoTaskMemFree,lstrcmpiW,lstrcatW,SetDlgItemTextW,GetDiskFreeSpaceW,MulDiv,SetDlgItemTextW,

Source: 98765434567890.exe

Static PE information: DYNAMIC_BASE, NX_COMPAT, NO_SEH, TERMINAL_SERVER_AWARE

Data Obfuscation

Yara detected GuLoader

Source: Yara match	File source: 00000000.00000002.764218177.0000000000840000.00000004.00000020.00020000.00000000.sdmp, type: MEMORY
Source: Yara match	File source: Process Memory Space: 98765434567890.exe PID: 5852, type: MEMORYSTR
Source: Yara match	File source: 00000000.00000002.765192426.0000000003410000.00000040.00001000.00020000.00000000.sdmp, type: MEMORY

Source: C:\Users\user\Desktop\98765434567890.exe

Code function: 0_2_10002DE0 push eax; ret

Source: libgiognutls.dll.0.dr

Static PE information: section name: .xdata

Source: C:\Users\user\Desktop\98765434567890.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\98765434567890.exe	File created: C:\Users\user\AppData\Local\Temp\nsa22B8.tmp\System.dll			Jump to dropped file
Source: C:\Users\user\Desktop\98765434567890.exe	File created: C:\Users\user\AppData\Roaming\Microsoft\Windows\Start Menu\Stempelpligtig93\X\Unsalty\libgiognutls.dll			Jump to dropped file

Source: C:\Users\user\Desktop\98765434567890.exe	File created: C:\Users\user\AppData\Roaming\Microsoft\Windows\Start Menu\Stempelpligtig93	Jump to behavior
Source: C:\Users\user\Desktop\98765434567890.exe	File created: C:\Users\user\AppData\Roaming\Microsoft\Windows\Start Menu\Stempelpligtig93\antagonizing	Jump to behavior
Source: C:\Users\user\Desktop\98765434567890.exe	File created: C:\Users\user\AppData\Roaming\Microsoft\Windows\Start Menu\Stempelpligtig93\antagonizing\Trespassage	Jump to behavior
Source: C:\Users\user\Desktop\98765434567890.exe	File created: C:\Users\user\AppData\Roaming\Microsoft\Windows\Start Menu\Stempelpligtig93\antagonizing\Trespassage\Importprisernes.Qui	Jump to behavior
Source: C:\Users\user\Desktop\98765434567890.exe	File created: C:\Users\user\AppData\Roaming\Microsoft\Windows\Start Menu\Stempelpligtig93\X	Jump to behavior
Source: C:\Users\user\Desktop\98765434567890.exe	File created: C:\Users\user\AppData\Roaming\Microsoft\Windows\Start Menu\Stempelpligtig93\X\Unsalty	Jump to behavior
Source: C:\Users\user\Desktop\98765434567890.exe	File created: C:\Users\user\AppData\Roaming\Microsoft\Windows\Start Menu\Stempelpligtig93\X\Unsalty\libgiognutls.dll	Jump to behavior
Source: C:\Users\user\Desktop\98765434567890.exe	File created: C:\Users\user\AppData\Roaming\Microsoft\Windows\Start Menu\Stempelpligtig93\X\Unsalty\Epithem.Dre	Jump to behavior

Source: C:\Users\user\Desktop\98765434567890.exe

Process information set: NOOPENFILEERRORBOX

Malware Analysis System Evasion

Tries to detect virtualization through RDTSC time measurements

Source: C:\Users\user\Desktop\98765434567890.exe

RDTSC instruction interceptor: First address: 0000000003415088 second address: 0000000003415088 instructions: 0x00000000 rdtsc 0x00000002 cmp ebx, ecx 0x00000004 jc 00007FB4785ACE05h 0x00000006 cmp dh, ah 0x00000008 inc ebp 0x00000009 cmp ax, cx 0x0000000c inc ebx 0x0000000d rdtsc

Source: C:\Users\user\Desktop\98765434567890.exe

Dropped PE file which has not been started: C:\Users\user\AppData\Roaming\Microsoft\Windows\Start Menu\Stempelpligtig93\X\Unsalty\libgiognutls.dll

Jump to dropped file

Source: C:\Users\user\Desktop\98765434567890.exe	Code function: 0_2_00406555 FindFirstFileW,FindClose,
Source: C:\Users\user\Desktop\98765434567890.exe	Code function: 0_2_00405A03 CloseHandle,GetTempPathW,DeleteFileW,lstrcatW,lstrcatW,lstrlenW,FindFirstFileW,FindNextFileW,FindClose,
Source: C:\Users\user\Desktop\98765434567890.exe	Code function: 0_2_0040287E FindFirstFileW,

Source: C:\Users\user\Desktop\98765434567890.exe	API call chain: ExitProcess graph end node
Source: C:\Users\user\Desktop\98765434567890.exe	API call chain: ExitProcess graph end node

Source: C:\Users\user\Desktop\98765434567890.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\98765434567890.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	1 Registry Run Keys / Startup Folder	1 Access Token Manipulation	1 Access Token Manipulation	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	1 Registry Run Keys / Startup Folder	1 Obfuscated Files or Information	LSASS Memory	2 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)	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
98765434567890.exe	5%	ReversingLabs

Dropped Files

Source	Detection	Scanner	Link
C:\Users\user\AppData\Local\Temp\nsa22B8.tmp\System.dll	2%	ReversingLabs
C:\Users\user\AppData\Local\Temp\nsa22B8.tmp\System.dll	1%	Virustotal	Browse
C:\Users\user\AppData\Roaming\Microsoft\Windows\Start Menu\Stempelpligtig93\X\Unsalty\libgiognutls.dll	0%	ReversingLabs
C:\Users\user\AppData\Roaming\Microsoft\Windows\Start Menu\Stempelpligtig93\X\Unsalty\libgiognutls.dll	0%	Virustotal	Browse

Name	Source	Malicious	Antivirus Detection	Reputation
http://nsis.sf.net/NSIS_ErrorError	98765434567890.exe	false		high

World Map of Contacted IPs

⊘No contacted IP infos

General Information

Joe Sandbox Version:	36.0.0 Rainbow Opal
Analysis ID:	755084
Start date and time:	2022-11-28 10:12:41 +01:00
Joe Sandbox Product:	CloudBasic
Overall analysis duration:	0h 8m 5s
Hypervisor based Inspection enabled:	false
Report type:	light
Sample file name:	98765434567890.exe
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:	11
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
Detection:	MAL
Classification:	mal60.troj.evad.winEXE@1/4@0/0
EGA Information:	Successful, ratio: 100%
HDC Information:	Successful, ratio: 85.8% (good quality ratio 84.5%) Quality average: 87.7% Quality standard deviation: 21.3%
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, WMIADAP.exe, SgrmBroker.exe, conhost.exe, svchost.exe
Excluded domains from analysis (whitelisted): www.bing.com, client.wns.windows.com, fs.microsoft.com, ctldl.windowsupdate.com
Not all processes where analyzed, report is missing behavior information
Report size getting too big, too many NtSetInformationFile calls found.

Process:	C:\Users\user\Desktop\98765434567890.exe
File Type:	PE32 executable (DLL) (GUI) Intel 80386, for MS Windows
Category:	modified
Size (bytes):	11776
Entropy (8bit):	5.656065698421856
Encrypted:	false
SSDEEP:	192:eY24sihno00Wfl97nH6T2enXwWobpWBTU4VtHT7dmN35Ol+Sl:E8QIl975eXqlWBrz7YLOl+
MD5:	17ED1C86BD67E78ADE4712BE48A7D2BD
SHA1:	1CC9FE86D6D6030B4DAE45ECDDCE5907991C01A0
SHA-256:	BD046E6497B304E4EA4AB102CAB2B1F94CE09BDE0EEBBA4C59942A732679E4EB
SHA-512:	0CBED521E7D6D1F85977B3F7D3CA7AC34E1B5495B69FD8C7BFA1A846BAF53B0ECD06FE1AD02A3599082FFACAF8C71A3BB4E32DEC05F8E24859D736B828092CD5
Malicious:	false
Antivirus:	Antivirus: ReversingLabs, Detection: 2% Antivirus: Virustotal, Detection: 1%, Browse
Reputation:	moderate, very likely benign file
Preview:	MZ......................@...............................................!..L.!This program cannot be run in DOS mode....$.......1...u.u.u...s.u.a....r.!..q....t....t.Richu.........................PE..L.....MX...........!..... ...........'.......0...............................`.......................................2.......0..P............................P.......................................................0..X............................text............ .................. ..`.rdata..S....0.......$..............@..@.data...x....@.......(..............@....reloc..b....P.......*..............@..B................................................................................................................................................................................................................................................................................................................................................................................

C:\Users\user\AppData\Roaming\Microsoft\Windows\Start Menu\Stempelpligtig93\X\Unsalty\Epithem.Dre

Download File

Process:	C:\Users\user\Desktop\98765434567890.exe
File Type:	data
Category:	dropped
Size (bytes):	71042
Entropy (8bit):	7.997487610071428
Encrypted:	true
SSDEEP:	1536:LoTgnjw+E7cYT8/O3qCaPdc4MgMHJB5KGSZfV:cww+8YSqnG4MNoGSD
MD5:	B11B64A276E8FEB3D09F2CBCEE1DA91D
SHA1:	AC7191608193A7479C7BE2AD72754D60BB22801B
SHA-256:	5F2966EE48ACB731DCE5B8977D6A61C891059058B76F03F670A75C3B2BDB83EA
SHA-512:	CA023A0D961F3E4886F5345EE9A877B632D017AC2028DEAB0AFD6BBDB86F19AD9E018CD16F1A692764076FD556FB8AD3BA01366B013EC35153C1BC88B9D9B3B4
Malicious:	false
Reputation:	low
Preview:	.M...V.)........q.7Q....8P.@d.E..ls....f..u..d.]${1##.Bg...I..sf...(.....f..J..7....Q....&..._py.O.?.v...@q..L..nD.o..!o.Y..W...q.(9.....f..F...>Bl.6....E?..'....{v..5.o>c..r1.....P.......?...,..4........%....C;.`..g9..U.^....b.v.dXC...g...^....a..}V"..a..'...&..w....6...,^...z.#g....d..,..M@..{_...Aiu....y~..#..bW.x...R.Z.....YN..?H....t....>.Im'.Kl...EDT.....&...7L..^...A.....k\|....f1.....U.R.y/...X.a...I....g.....+.F..=a...{.C....n..[A....w^.R.d9.]+.......O..{V..e.....&...hl..G...ZF.,.[......4...&5J(}gH...b......CL.H;z0.._}.....q....My=.`.7>.F......./\|1..}.B_.C..LV.[...o...W....Q#&.......1hkq.1u...'O<.........6U...h....m....}F]D....T..S.B....X.bs..#%...9c.s.k;....o.KL..M,s.l.{.\....eu._Es.+.G.Q..y.p...Bi...^......?.......>...%....!U..N....').tZ[&...s...R.^.......%Z..H..3.....TBq'.T:s1..d...]... ...H.46K....(.^...@.U.7.;......Q....w.....F..}'...L...f}......,o...WJ...(.. ....\|!.....B...MZ...^@j.....H.R.]'.v%P.w.e..KBVQ.(.<.g

C:\Users\user\AppData\Roaming\Microsoft\Windows\Start Menu\Stempelpligtig93\X\Unsalty\libgiognutls.dll

Download File

Process:	C:\Users\user\Desktop\98765434567890.exe
File Type:	PE32+ executable (DLL) (console) x86-64 (stripped to external PDB), for MS Windows
Category:	dropped
Size (bytes):	131991
Entropy (8bit):	5.8780987492725405
Encrypted:	false
SSDEEP:	1536:v6J1cdTEl2OzvUtevCuoCW9fPr+vo9F5J7YWv3vbRnBycYWOGWSeaGymtYWOGWSS:VdW2OLgNCwXKSH8WPvVBjA+KE8S5
MD5:	10D998CF80B4437C2979B25EBCBE16D1
SHA1:	79C99DD2ABB99253E41C5E40DAB29522F93345BB
SHA-256:	A0A87BC30F4B39D7B642841A10208CE5286C6CA712B28B9D921E1EA6F547AEE6
SHA-512:	44863645B48815C3C248111F86440E3A0C515AF61B5A17D15B5A6C7304277F76056BCEB6C579E7824E11ADCA4DB3E385FA8019D602C40FA527E725C09B6AA523
Malicious:	false
Antivirus:	Antivirus: ReversingLabs, Detection: 0% Antivirus: Virustotal, Detection: 0%, Browse
Reputation:	low
Preview:	MZ......................@...............................................!..L.!This program cannot be run in DOS mode....$.......PE..d.................&"...%............P........................................@......g}....`... .................................................lE...........................0.............................. i..(....................................................text...X...........................`..`.data........ ......................@....rdata...A...0...B..................@..@.pdata...............R..............@..@.xdata..X............`..............@..@.bss....p................................edata...............n..............@..@.idata..lE.......F...p..............@....CRT....X...........................@....tls......... ......................@....reloc.......0......................@..B........................................................................................................................................................................

C:\Users\user\AppData\Roaming\Microsoft\Windows\Start Menu\Stempelpligtig93\antagonizing\Trespassage\Importprisernes.Qui

Download File

Process:	C:\Users\user\Desktop\98765434567890.exe
File Type:	data
Category:	dropped
Size (bytes):	178390
Entropy (8bit):	6.530973591237936
Encrypted:	false
SSDEEP:	1536:D2+s6BE+9e6acEoJlwBCIQBMvbN+r9dt0ppPn4t2vcCTAgP+48IhsckBtg6:DVur6aRwssypZ4t2kCMgP8cWtg6
MD5:	EE4440124C925FE4F95735EA4568FAE6
SHA1:	C7428FDB29B43C77589FF0C160AEE0C063DD20A1
SHA-256:	08705B17B6DAE5798AD5AE935FC23CFFE929B3EA490C0D0F09EBD6F1CE19E4A2
SHA-512:	C8927169A8395684C24C680498A152D53FCCFD3C5D05E0CB83926565C77BDAE6F9468744FC2A010E45FD6E6860877AA05F6067C3A2484BD1E26BBE780A01E82D
Malicious:	false
Reputation:	low
Preview:	....[?E..+ .;..."x.2k...1..`._.i...{.H.?.....+,O.......,.D6#...1^I..&.{&-P#.`..........Q.c....o....Fw-..Ts[....U.w_F....c..?....i...Hk.....>.mr...Oj...Vz..(..0.RO.I../...t4.(.X.....XD..^.&...9g.D'.>\..8=0T!......B'!.R....d.>\...Ho.....E..m...94..)..s...h.....HI.....T.g5........L(i.Vz.YM.....Z.D../....`....Q$9....c.GDk"...........;..<..............(..?.....Y.7.......[.]O........S36.....&D.....9u.^.a`....5T.I?.I..Ha.ks....[]=..h...2....:....P.'..^.p..@+.s........l4p<...2.-.q.7q...O..w..],.....x(k....v.!Ih3n..il....sa...............Z...5..=.Z1y.P..c7..R.^....B..+..I.NA!x.+Z...:...U.(...E@cqQ.....+..@....]/.A..4......<L8h..gbW...G,.qN<`.17t.P...$#.Y....Y.t.......z."...\..u.q....-..w.....B....].v...".cZ]\..P...f...Iy....2.m../..{.0.B.w....C.&J_..AA.......Y(....R...-....f.B....R...d..w...\|..nR..X.2.2..>9%`..f/#OT`W.C.0....=9.g..uBTb..0..2...Q.ir.Aq...LT..IU.c.$xk....??g.{......V.....w......K...\5..b.....[%...`..\....ga.. .Xq.PTS..;<....

Static File Info

General

File type:	PE32 executable (GUI) Intel 80386, for MS Windows, Nullsoft Installer self-extracting archive
Entropy (8bit):	7.422995711933732
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:	98765434567890.exe
File size:	428864
MD5:	1c4e3e615e3596572062bca5ec498d41
SHA1:	40365b3026ba2fca699462877fc106d58d2406c2
SHA256:	622163e09e5ad5324887c02d7834628d7213015fc48d286d69b4a90fa17a772d
SHA512:	2e87606c186203ee5018d737721e6de9e5ccfbc3c541f71dc7e836c705d8afa7a41e13b8e70f85223b41117323b9c15cc3301b3438eee5cf26200e48c01ba033
SSDEEP:	6144:0wq3NpnsvZK26XgmwnTi512noHCAibaH+Z23pSzpQl2sCbtORgNbTg:0z772qgvq2njDme2pSzZhtE
TLSH:	D894DF95F78106D9DC75577149BB9D370277BD3E18B10B9F62AD32312F332828A07A2A
File Content Preview:	MZ......................@...............................................!..L.!This program cannot be run in DOS mode....$........1...P...P...P.._...P...P..OP.._...P...s...P...V...P..Rich.P..........PE..L...8.MX.................b...*......J4............@

File Icon


Icon Hash:	b8eee6a4c0c8c6c2

Static PE Info

General

Entrypoint:	0x40344a
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:	0x584DCA38 [Sun Dec 11 21:50:48 2016 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:	4ea4df5d94204fc550be1874e1b77ea7

Authenticode Signature

Signature Valid:	false
Signature Issuer:	CN=Derobe, OU="Papirspose Dokumentfilens ", E=Drikkelagets@Unaadigt.Sh, O=Derobe, L=Neu Duvenstedt, S=Schleswig-Holstein, C=DE
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	12/3/2021 7:47:31 AM 12/2/2024 7:47:31 AM
Subject Chain	CN=Derobe, OU="Papirspose Dokumentfilens ", E=Drikkelagets@Unaadigt.Sh, O=Derobe, L=Neu Duvenstedt, S=Schleswig-Holstein, C=DE
Version:	3
Thumbprint MD5:	13BD13A74F5989BBBF4626613B253C7F
Thumbprint SHA-1:	3FF1D875731FD030D811E21481EF38D2C90E217A
Thumbprint SHA-256:	919DEF4FB98F825B484FBCC82721EDA3F9094E0BAFFBEF15B4BC145160DD6350
Serial:	1254C7D01C8577B0

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], 0040A230h
mov dword ptr [esp+1Ch], ebx
call dword ptr [004080B4h]
call dword ptr [004080B0h]
cmp ax, 00000006h
je 00007FB478C09843h
push ebx
call 00007FB478C0C99Ch
cmp eax, ebx
je 00007FB478C09839h
push 00000C00h
call eax
mov esi, 004082B8h
push esi
call 00007FB478C0C916h
push esi
call dword ptr [0040815Ch]
lea esi, dword ptr [esi+eax+01h]
cmp byte ptr [esi], 00000000h
jne 00007FB478C0981Ch
push ebp
push 00000009h
call 00007FB478C0C96Eh
push 00000007h
call 00007FB478C0C967h
mov dword ptr [0042A244h], eax
call dword ptr [0040803Ch]
push ebx
call dword ptr [004082A4h]
mov dword ptr [0042A2F8h], eax
push ebx
lea eax, dword ptr [esp+34h]
push 000002B4h
push eax
push ebx
push 004216E8h
call dword ptr [00408188h]
push 0040A384h
push 00429240h
call 00007FB478C0C550h
call dword ptr [004080ACh]
mov ebp, 00435000h
push eax
push ebp
call 00007FB478C0C53Eh
push ebx
call dword ptr [00408174h]
add word ptr [eax], 0000h

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	0x8504	0xa0	.rdata
IMAGE_DIRECTORY_ENTRY_RESOURCE	0x6e000	0x28868	.rsrc
IMAGE_DIRECTORY_ENTRY_EXCEPTION	0x0	0x0
IMAGE_DIRECTORY_ENTRY_SECURITY	0x675d8	0x1568	.ndata
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	0x2b4	.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	0x61f1	0x6200	False	0.6656967474489796	data	6.477074763411717	IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ
.rdata	0x8000	0x13a4	0x1400	False	0.4529296875	data	5.163001655755973	IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ
.data	0xa000	0x20338	0x600	False	0.501953125	data	3.9745558434885093	IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE
.ndata	0x2b000	0x43000	0x0	False	0	empty	0.0	IMAGE_SCN_CNT_UNINITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE
.rsrc	0x6e000	0x28868	0x28a00	False	0.4693269230769231	data	6.072692072533226	IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ

Resources

Name	RVA	Size	Type	Language	Country
RT_BITMAP	0x6e3b8	0x368	Device independent bitmap graphic, 96 x 16 x 4, image size 768	English	United States
RT_ICON	0x6e720	0x10828	Device independent bitmap graphic, 128 x 256 x 32, image size 65536	English	United States
RT_ICON	0x7ef48	0x94a8	Device independent bitmap graphic, 96 x 192 x 32, image size 36864	English	United States
RT_ICON	0x883f0	0x5488	Device independent bitmap graphic, 72 x 144 x 32, image size 20736	English	United States
RT_ICON	0x8d878	0x4228	Device independent bitmap graphic, 64 x 128 x 32, image size 16384	English	United States
RT_ICON	0x91aa0	0x25a8	Device independent bitmap graphic, 48 x 96 x 32, image size 9216	English	United States
RT_ICON	0x94048	0x10a8	Device independent bitmap graphic, 32 x 64 x 32, image size 4096	English	United States
RT_ICON	0x950f0	0x988	Device independent bitmap graphic, 24 x 48 x 32, image size 2304	English	United States
RT_ICON	0x95a78	0x468	Device independent bitmap graphic, 16 x 32 x 32, image size 1024	English	United States
RT_DIALOG	0x95ee0	0x144	data	English	United States
RT_DIALOG	0x96028	0x13c	data	English	United States
RT_DIALOG	0x96168	0x100	data	English	United States
RT_DIALOG	0x96268	0x11c	data	English	United States
RT_DIALOG	0x96388	0xc4	data	English	United States
RT_DIALOG	0x96450	0x60	data	English	United States
RT_GROUP_ICON	0x964b0	0x76	data	English	United States
RT_MANIFEST	0x96528	0x33e	XML 1.0 document, ASCII text, with very long lines (830), with no line terminators	English	United States

Imports

DLL	Import
KERNEL32.dll	SetCurrentDirectoryW, GetFileAttributesW, GetFullPathNameW, Sleep, GetTickCount, CreateFileW, GetFileSize, MoveFileW, SetFileAttributesW, GetModuleFileNameW, CopyFileW, ExitProcess, SetEnvironmentVariableW, GetWindowsDirectoryW, GetTempPathW, GetCommandLineW, GetVersion, SetErrorMode, WaitForSingleObject, GetCurrentProcess, CompareFileTime, GlobalUnlock, GlobalLock, CreateThread, GetLastError, CreateDirectoryW, CreateProcessW, RemoveDirectoryW, lstrcmpiA, GetTempFileNameW, WriteFile, lstrcpyA, lstrcpyW, MoveFileExW, lstrcatW, GetSystemDirectoryW, GetProcAddress, GetModuleHandleA, GlobalFree, GlobalAlloc, GetShortPathNameW, SearchPathW, lstrcmpiW, SetFileTime, CloseHandle, ExpandEnvironmentStringsW, lstrcmpW, GetDiskFreeSpaceW, lstrlenW, lstrcpynW, GetExitCodeProcess, FindFirstFileW, FindNextFileW, DeleteFileW, SetFilePointer, ReadFile, FindClose, MulDiv, MultiByteToWideChar, lstrlenA, WideCharToMultiByte, GetPrivateProfileStringW, WritePrivateProfileStringW, FreeLibrary, LoadLibraryExW, GetModuleHandleW
USER32.dll	GetSystemMenu, SetClassLongW, IsWindowEnabled, EnableMenuItem, SetWindowPos, GetSysColor, GetWindowLongW, SetCursor, LoadCursorW, CheckDlgButton, GetMessagePos, LoadBitmapW, CallWindowProcW, IsWindowVisible, CloseClipboard, SetClipboardData, EmptyClipboard, OpenClipboard, wsprintfW, ScreenToClient, GetWindowRect, GetSystemMetrics, SetDlgItemTextW, GetDlgItemTextW, MessageBoxIndirectW, CharPrevW, CharNextA, wsprintfA, DispatchMessageW, PeekMessageW, GetDC, ReleaseDC, EnableWindow, InvalidateRect, SendMessageW, DefWindowProcW, BeginPaint, GetClientRect, FillRect, EndDialog, RegisterClassW, SystemParametersInfoW, CreateWindowExW, GetClassInfoW, DialogBoxParamW, CharNextW, ExitWindowsEx, DestroyWindow, LoadImageW, SetTimer, SetWindowTextW, PostQuitMessage, ShowWindow, GetDlgItem, IsWindow, SetWindowLongW, FindWindowExW, TrackPopupMenu, AppendMenuW, CreatePopupMenu, DrawTextW, EndPaint, CreateDialogParamW, SendMessageTimeoutW, SetForegroundWindow
GDI32.dll	SelectObject, SetBkMode, CreateFontIndirectW, SetTextColor, DeleteObject, GetDeviceCaps, CreateBrushIndirect, SetBkColor
SHELL32.dll	SHGetSpecialFolderLocation, SHGetPathFromIDListW, SHBrowseForFolderW, SHGetFileInfoW, ShellExecuteW, SHFileOperationW
ADVAPI32.dll	RegDeleteKeyW, SetFileSecurityW, OpenProcessToken, LookupPrivilegeValueW, AdjustTokenPrivileges, RegOpenKeyExW, RegEnumValueW, RegDeleteValueW, RegCloseKey, RegCreateKeyExW, RegSetValueExW, RegQueryValueExW, RegEnumKeyW
COMCTL32.dll	ImageList_AddMasked, ImageList_Destroy, ImageList_Create
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:	10:13:38
Start date:	28/11/2022
Path:	C:\Users\user\Desktop\98765434567890.exe
Wow64 process (32bit):	true
Commandline:	C:\Users\user\Desktop\98765434567890.exe
Imagebase:	0x400000
File size:	428864 bytes
MD5 hash:	1C4E3E615E3596572062BCA5EC498D41
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: 00000000.00000002.765192426.0000000003410000.00000040.00001000.00020000.00000000.sdmp, Author: Joe Security Rule: JoeSecurity_GuLoader_3, Description: Yara detected GuLoader, Source: 00000000.00000002.764218177.0000000000840000.00000004.00000020.00020000.00000000.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 achieve persistence by adding a program to a startup folder or referencing it with a Registry run key. Adding an entry to the "run keys" in the Registry or startup folder will cause the program referenced to be executed when a user logs in. These programs will be executed under the context of the user and will have the account's associated permissions level.
Tactics:	Persistence, Privilege Escalation
Data Sources:	File monitoring, Windows Registry
Platforms:	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 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 98765434567890.exe

Overview

General Information

Detection

Signatures

Classification

Process Tree

Malware Configuration

Yara Signatures

Memory Dumps

Sigma Signatures

Snort Signatures

Joe Sandbox Signatures

Compliance

Spreading

Networking

Key, Mouse, Clipboard, Microphone and Screen Capturing

System Summary

Data Obfuscation

Persistence and Installation Behavior

Boot Survival

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\nsa22B8.tmp\System.dll

C:\Users\user\AppData\Roaming\Microsoft\Windows\Start Menu\Stempelpligtig93\X\Unsalty\Epithem.Dre

C:\Users\user\AppData\Roaming\Microsoft\Windows\Start Menu\Stempelpligtig93\X\Unsalty\libgiognutls.dll

C:\Users\user\AppData\Roaming\Microsoft\Windows\Start Menu\Stempelpligtig93\antagonizing\Trespassage\Importprisernes.Qui

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

Statistics

System Behavior

Analysis Process: 98765434567890.exePID: 5852, Parent PID: 3320

General

Disassembly

Windows Analysis Report
98765434567890.exe