darkcomet | 35cb195d816e06cc91419f58858bbc9e2fdd0c4d8cf3dd568e35f36a52c582de

Analysis

max time kernel
140s
max time network
125s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
20/07/2024, 00:52

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General

Target
5e65b5eab10bb5bdd999b56d0f7f56e1_JaffaCakes118.exe
Size 287KB
Sample240720-a79reasdnd
SHA256 35cb195d816e06cc91419f58858bbc9e2fdd0c4d8cf3dd568e35f36a52c582de
MD5 5e65b5eab10bb5bdd999b56d0f7f56e1
SHA1 2a7939d5485e73875aed1b44c111eaf32960c2c1
SHA512 9fc21d2a1840835c49b0483962b532627980e601ff282a14f4d6c956f321367fa72576c505e1d974500df2a29d20ec84dbdc1db4d7cab42a52201cd761da725d
SSDEEP 6144:Zl/PVCo10Bw9geYmGhuI/Km6Uhe7adib5I+6VS1BYo6vUhIPJTF:DES8w9SmGocoVhb2vU2b
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

darkcomet hacker persistence rat trojan upx

Malware Config

Extracted

Family

darkcomet

Botnet

HacKEr

ab11.no-ip.biz:1604

Mutex

DC_MUTEX-R3MTLZ6

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
icUgNhYyDYuD
install
true
offline_keylogger
true
persistence
true
reg_key
MicroUpdate

Signatures

Darkcomet
DarkComet is a remote access trojan (RAT) developed by Jean-Pierre Lesueur.
trojan rat darkcomet

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	5e65b5eab10bb5bdd999b56d0f7f56e1_JaffaCakes118.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-701583114-2636601053-947405450-1000\Control Panel\International\Geo\Nation	5e65b5eab10bb5bdd999b56d0f7f56e1_JaffaCakes118.exe

Executes dropped EXE 2 IoCs

pid	Process
3328	msdcsc.exe
3616	msdcsc.exe

UPX packed file 12 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/4856-3-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral2/memory/4856-4-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral2/memory/4856-6-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral2/memory/4856-8-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral2/memory/4856-9-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral2/memory/4856-12-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral2/memory/3616-30-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral2/memory/3616-32-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral2/memory/3616-31-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral2/memory/3616-35-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral2/memory/3616-36-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral2/memory/3616-38-0x0000000000400000-0x00000000004BA000-memory.dmp	upx

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-701583114-2636601053-947405450-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	5e65b5eab10bb5bdd999b56d0f7f56e1_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-701583114-2636601053-947405450-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	msdcsc.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2636	4232	WerFault.exe	91

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 764 set thread context of 4856	764	5e65b5eab10bb5bdd999b56d0f7f56e1_JaffaCakes118.exe	86
PID 3328 set thread context of 3616	3328	msdcsc.exe	89
PID 3616 set thread context of 3908	3616	msdcsc.exe	90
PID 3908 set thread context of 4232	3908	iexplore.exe	91

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 48 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	4856	5e65b5eab10bb5bdd999b56d0f7f56e1_JaffaCakes118.exe
Token: SeSecurityPrivilege	4856	5e65b5eab10bb5bdd999b56d0f7f56e1_JaffaCakes118.exe
Token: SeTakeOwnershipPrivilege	4856	5e65b5eab10bb5bdd999b56d0f7f56e1_JaffaCakes118.exe
Token: SeLoadDriverPrivilege	4856	5e65b5eab10bb5bdd999b56d0f7f56e1_JaffaCakes118.exe
Token: SeSystemProfilePrivilege	4856	5e65b5eab10bb5bdd999b56d0f7f56e1_JaffaCakes118.exe
Token: SeSystemtimePrivilege	4856	5e65b5eab10bb5bdd999b56d0f7f56e1_JaffaCakes118.exe
Token: SeProfSingleProcessPrivilege	4856	5e65b5eab10bb5bdd999b56d0f7f56e1_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	4856	5e65b5eab10bb5bdd999b56d0f7f56e1_JaffaCakes118.exe
Token: SeCreatePagefilePrivilege	4856	5e65b5eab10bb5bdd999b56d0f7f56e1_JaffaCakes118.exe
Token: SeBackupPrivilege	4856	5e65b5eab10bb5bdd999b56d0f7f56e1_JaffaCakes118.exe
Token: SeRestorePrivilege	4856	5e65b5eab10bb5bdd999b56d0f7f56e1_JaffaCakes118.exe
Token: SeShutdownPrivilege	4856	5e65b5eab10bb5bdd999b56d0f7f56e1_JaffaCakes118.exe
Token: SeDebugPrivilege	4856	5e65b5eab10bb5bdd999b56d0f7f56e1_JaffaCakes118.exe
Token: SeSystemEnvironmentPrivilege	4856	5e65b5eab10bb5bdd999b56d0f7f56e1_JaffaCakes118.exe
Token: SeChangeNotifyPrivilege	4856	5e65b5eab10bb5bdd999b56d0f7f56e1_JaffaCakes118.exe
Token: SeRemoteShutdownPrivilege	4856	5e65b5eab10bb5bdd999b56d0f7f56e1_JaffaCakes118.exe
Token: SeUndockPrivilege	4856	5e65b5eab10bb5bdd999b56d0f7f56e1_JaffaCakes118.exe
Token: SeManageVolumePrivilege	4856	5e65b5eab10bb5bdd999b56d0f7f56e1_JaffaCakes118.exe
Token: SeImpersonatePrivilege	4856	5e65b5eab10bb5bdd999b56d0f7f56e1_JaffaCakes118.exe
Token: SeCreateGlobalPrivilege	4856	5e65b5eab10bb5bdd999b56d0f7f56e1_JaffaCakes118.exe
Token: 33	4856	5e65b5eab10bb5bdd999b56d0f7f56e1_JaffaCakes118.exe
Token: 34	4856	5e65b5eab10bb5bdd999b56d0f7f56e1_JaffaCakes118.exe
Token: 35	4856	5e65b5eab10bb5bdd999b56d0f7f56e1_JaffaCakes118.exe
Token: 36	4856	5e65b5eab10bb5bdd999b56d0f7f56e1_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	3616	msdcsc.exe
Token: SeSecurityPrivilege	3616	msdcsc.exe
Token: SeTakeOwnershipPrivilege	3616	msdcsc.exe
Token: SeLoadDriverPrivilege	3616	msdcsc.exe
Token: SeSystemProfilePrivilege	3616	msdcsc.exe
Token: SeSystemtimePrivilege	3616	msdcsc.exe
Token: SeProfSingleProcessPrivilege	3616	msdcsc.exe
Token: SeIncBasePriorityPrivilege	3616	msdcsc.exe
Token: SeCreatePagefilePrivilege	3616	msdcsc.exe
Token: SeBackupPrivilege	3616	msdcsc.exe
Token: SeRestorePrivilege	3616	msdcsc.exe
Token: SeShutdownPrivilege	3616	msdcsc.exe
Token: SeDebugPrivilege	3616	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	3616	msdcsc.exe
Token: SeChangeNotifyPrivilege	3616	msdcsc.exe
Token: SeRemoteShutdownPrivilege	3616	msdcsc.exe
Token: SeUndockPrivilege	3616	msdcsc.exe
Token: SeManageVolumePrivilege	3616	msdcsc.exe
Token: SeImpersonatePrivilege	3616	msdcsc.exe
Token: SeCreateGlobalPrivilege	3616	msdcsc.exe
Token: 33	3616	msdcsc.exe
Token: 34	3616	msdcsc.exe
Token: 35	3616	msdcsc.exe
Token: 36	3616	msdcsc.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
764	5e65b5eab10bb5bdd999b56d0f7f56e1_JaffaCakes118.exe
3328	msdcsc.exe
3908	iexplore.exe

Suspicious use of WriteProcessMemory 32 IoCs

description	pid	Process	procid_target
PID 764 wrote to memory of 4856	764	5e65b5eab10bb5bdd999b56d0f7f56e1_JaffaCakes118.exe	86
PID 764 wrote to memory of 4856	764	5e65b5eab10bb5bdd999b56d0f7f56e1_JaffaCakes118.exe	86
PID 764 wrote to memory of 4856	764	5e65b5eab10bb5bdd999b56d0f7f56e1_JaffaCakes118.exe	86
PID 764 wrote to memory of 4856	764	5e65b5eab10bb5bdd999b56d0f7f56e1_JaffaCakes118.exe	86
PID 764 wrote to memory of 4856	764	5e65b5eab10bb5bdd999b56d0f7f56e1_JaffaCakes118.exe	86
PID 764 wrote to memory of 4856	764	5e65b5eab10bb5bdd999b56d0f7f56e1_JaffaCakes118.exe	86
PID 764 wrote to memory of 4856	764	5e65b5eab10bb5bdd999b56d0f7f56e1_JaffaCakes118.exe	86
PID 764 wrote to memory of 4856	764	5e65b5eab10bb5bdd999b56d0f7f56e1_JaffaCakes118.exe	86
PID 4856 wrote to memory of 3328	4856	5e65b5eab10bb5bdd999b56d0f7f56e1_JaffaCakes118.exe	88
PID 4856 wrote to memory of 3328	4856	5e65b5eab10bb5bdd999b56d0f7f56e1_JaffaCakes118.exe	88
PID 4856 wrote to memory of 3328	4856	5e65b5eab10bb5bdd999b56d0f7f56e1_JaffaCakes118.exe	88
PID 3328 wrote to memory of 3616	3328	msdcsc.exe	89
PID 3328 wrote to memory of 3616	3328	msdcsc.exe	89
PID 3328 wrote to memory of 3616	3328	msdcsc.exe	89
PID 3328 wrote to memory of 3616	3328	msdcsc.exe	89
PID 3328 wrote to memory of 3616	3328	msdcsc.exe	89
PID 3328 wrote to memory of 3616	3328	msdcsc.exe	89
PID 3328 wrote to memory of 3616	3328	msdcsc.exe	89
PID 3328 wrote to memory of 3616	3328	msdcsc.exe	89
PID 3616 wrote to memory of 3908	3616	msdcsc.exe	90
PID 3616 wrote to memory of 3908	3616	msdcsc.exe	90
PID 3616 wrote to memory of 3908	3616	msdcsc.exe	90
PID 3616 wrote to memory of 3908	3616	msdcsc.exe	90
PID 3616 wrote to memory of 3908	3616	msdcsc.exe	90
PID 3908 wrote to memory of 4232	3908	iexplore.exe	91
PID 3908 wrote to memory of 4232	3908	iexplore.exe	91
PID 3908 wrote to memory of 4232	3908	iexplore.exe	91
PID 3908 wrote to memory of 4232	3908	iexplore.exe	91
PID 3908 wrote to memory of 4232	3908	iexplore.exe	91
PID 3908 wrote to memory of 4232	3908	iexplore.exe	91
PID 3908 wrote to memory of 4232	3908	iexplore.exe	91
PID 3908 wrote to memory of 4232	3908	iexplore.exe	91

C:\Users\Admin\AppData\Local\Temp\5e65b5eab10bb5bdd999b56d0f7f56e1_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\5e65b5eab10bb5bdd999b56d0f7f56e1_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:764
- C:\Users\Admin\AppData\Local\Temp\5e65b5eab10bb5bdd999b56d0f7f56e1_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\5e65b5eab10bb5bdd999b56d0f7f56e1_JaffaCakes118.exe
  2⤵
  - Modifies WinLogon for persistence
  - Checks computer location settings
  - Adds Run key to start application
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4856
- - C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
    "C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:3328
  - - C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
      C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
      4⤵
      Executes dropped EXE
      Adds Run key to start application
      Suspicious use of SetThreadContext
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of WriteProcessMemory
      PID:3616
    - - C:\Program Files (x86)\Internet Explorer\iexplore.exe
        
        "C:\Program Files (x86)\Internet Explorer\iexplore.exe"
        5⤵
        Suspicious use of SetThreadContext
        Suspicious use of SetWindowsHookEx
        Suspicious use of WriteProcessMemory
        
        PID:3908
      - C:\Program Files (x86)\Internet Explorer\iexplore.exe
        
        "C:\Program Files (x86)\Internet Explorer\iexplore.exe"
        6⤵
        
        PID:4232
        
        C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 4232 -s 84
        7⤵
        Program crash
        
        PID:2636

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 4232 -ip 4232
1⤵
PID:1180

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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msdcsc.exe

Path C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
Size 287KB
SHA256 35cb195d816e06cc91419f58858bbc9e2fdd0c4d8cf3dd568e35f36a52c582de
MD5 5e65b5eab10bb5bdd999b56d0f7f56e1
SHA1 2a7939d5485e73875aed1b44c111eaf32960c2c1
SHA512 9fc21d2a1840835c49b0483962b532627980e601ff282a14f4d6c956f321367fa72576c505e1d974500df2a29d20ec84dbdc1db4d7cab42a52201cd761da725d
SSDEEP 6144:Zl/PVCo10Bw9geYmGhuI/Km6Uhe7adib5I+6VS1BYo6vUhIPJTF:DES8w9SmGocoVhb2vU2b
MD5 SHA1 SHA512 SSDEEP

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memory/764-7-0x0000000000400000-0x000000000050F000-memory.dmp

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memory/764-0-0x0000000000400000-0x000000000050F000-memory.dmp

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memory/3328-23-0x0000000000400000-0x000000000050F000-memory.dmp

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memory/3328-34-0x0000000000400000-0x000000000050F000-memory.dmp

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memory/3616-32-0x0000000000400000-0x00000000004BA000-memory.dmp

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memory/3616-30-0x0000000000400000-0x00000000004BA000-memory.dmp

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memory/3616-31-0x0000000000400000-0x00000000004BA000-memory.dmp

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memory/3616-35-0x0000000000400000-0x00000000004BA000-memory.dmp

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memory/3616-36-0x0000000000400000-0x00000000004BA000-memory.dmp

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memory/3616-38-0x0000000000400000-0x00000000004BA000-memory.dmp

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memory/4856-9-0x0000000000400000-0x00000000004BA000-memory.dmp

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memory/4856-4-0x0000000000400000-0x00000000004BA000-memory.dmp

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memory/4856-8-0x0000000000400000-0x00000000004BA000-memory.dmp

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memory/4856-3-0x0000000000400000-0x00000000004BA000-memory.dmp

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memory/4856-12-0x0000000000400000-0x00000000004BA000-memory.dmp

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memory/4856-6-0x0000000000400000-0x00000000004BA000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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