darkcomet | f593910c588856c47056520d2edf93ebd4bd9ae9c68205d657aac26276d65e82

Analysis

max time kernel
149s
max time network
117s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
06-12-2024 23:16

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General

Target

cf87d7e808faec9cfd1d2dc39a80d634_JaffaCakes118.exe
Size

756KB
MD5

cf87d7e808faec9cfd1d2dc39a80d634
SHA1

43aa7194671f56326b06df68662994e8c5b2901e
SHA256

f593910c588856c47056520d2edf93ebd4bd9ae9c68205d657aac26276d65e82
SHA512

cb6b840b6b3896133f0a0dda6ee836cab7b9f8ab7e790853340e079db7800636a55285b05701f9c4cc8d68db38d40a8c78c2d28566b5395a767706a1d20b66c4
SSDEEP

12288:C9HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9Ek5C/hdrzm:uZ1xuVVjfFoynPaVBUR8f+kN10EB3zm

Score

10^/10

darkcomet farcry 3 discovery evasion persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

farcry 3

127.0.0.1:1604

stalker91.no-ip.org:1604

Mutex

DC_MUTEX-E9CMGU0

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
tXYkPC1ntx3C
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
Darkcomet family
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:\\Windows\\system32\\MSDCSC\\msdcsc.exe"	cf87d7e808faec9cfd1d2dc39a80d634_JaffaCakes118.exe

Modifies security service 2 TTPs 1 IoCs

evasion

Modify Registry

T1112

Windows Service

T1543.003

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\wscsvc\Start = "4"	msdcsc.exe

Windows security bypass 2 TTPs 2 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	msdcsc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1"	msdcsc.exe

Disables Task Manager via registry modification
evasion

Deletes itself 1 IoCs

pid	Process
2424	notepad.exe

Executes dropped EXE 1 IoCs

pid	Process
2852	msdcsc.exe

Loads dropped DLL 2 IoCs

pid	Process
1632	cf87d7e808faec9cfd1d2dc39a80d634_JaffaCakes118.exe
1632	cf87d7e808faec9cfd1d2dc39a80d634_JaffaCakes118.exe

Windows security modification 2 TTPs 2 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	msdcsc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1"	msdcsc.exe

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-1-5-21-1488793075-819845221-1497111674-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Windows\\system32\\MSDCSC\\msdcsc.exe"	cf87d7e808faec9cfd1d2dc39a80d634_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Windows\\system32\\MSDCSC\\msdcsc.exe"	msdcsc.exe

Drops file in System32 directory 3 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\MSDCSC\msdcsc.exe	cf87d7e808faec9cfd1d2dc39a80d634_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\MSDCSC\msdcsc.exe	cf87d7e808faec9cfd1d2dc39a80d634_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\MSDCSC\	cf87d7e808faec9cfd1d2dc39a80d634_JaffaCakes118.exe

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cf87d7e808faec9cfd1d2dc39a80d634_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	notepad.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msdcsc.exe

Suspicious use of AdjustPrivilegeToken 46 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	1632	cf87d7e808faec9cfd1d2dc39a80d634_JaffaCakes118.exe
Token: SeSecurityPrivilege	1632	cf87d7e808faec9cfd1d2dc39a80d634_JaffaCakes118.exe
Token: SeTakeOwnershipPrivilege	1632	cf87d7e808faec9cfd1d2dc39a80d634_JaffaCakes118.exe
Token: SeLoadDriverPrivilege	1632	cf87d7e808faec9cfd1d2dc39a80d634_JaffaCakes118.exe
Token: SeSystemProfilePrivilege	1632	cf87d7e808faec9cfd1d2dc39a80d634_JaffaCakes118.exe
Token: SeSystemtimePrivilege	1632	cf87d7e808faec9cfd1d2dc39a80d634_JaffaCakes118.exe
Token: SeProfSingleProcessPrivilege	1632	cf87d7e808faec9cfd1d2dc39a80d634_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	1632	cf87d7e808faec9cfd1d2dc39a80d634_JaffaCakes118.exe
Token: SeCreatePagefilePrivilege	1632	cf87d7e808faec9cfd1d2dc39a80d634_JaffaCakes118.exe
Token: SeBackupPrivilege	1632	cf87d7e808faec9cfd1d2dc39a80d634_JaffaCakes118.exe
Token: SeRestorePrivilege	1632	cf87d7e808faec9cfd1d2dc39a80d634_JaffaCakes118.exe
Token: SeShutdownPrivilege	1632	cf87d7e808faec9cfd1d2dc39a80d634_JaffaCakes118.exe
Token: SeDebugPrivilege	1632	cf87d7e808faec9cfd1d2dc39a80d634_JaffaCakes118.exe
Token: SeSystemEnvironmentPrivilege	1632	cf87d7e808faec9cfd1d2dc39a80d634_JaffaCakes118.exe
Token: SeChangeNotifyPrivilege	1632	cf87d7e808faec9cfd1d2dc39a80d634_JaffaCakes118.exe
Token: SeRemoteShutdownPrivilege	1632	cf87d7e808faec9cfd1d2dc39a80d634_JaffaCakes118.exe
Token: SeUndockPrivilege	1632	cf87d7e808faec9cfd1d2dc39a80d634_JaffaCakes118.exe
Token: SeManageVolumePrivilege	1632	cf87d7e808faec9cfd1d2dc39a80d634_JaffaCakes118.exe
Token: SeImpersonatePrivilege	1632	cf87d7e808faec9cfd1d2dc39a80d634_JaffaCakes118.exe
Token: SeCreateGlobalPrivilege	1632	cf87d7e808faec9cfd1d2dc39a80d634_JaffaCakes118.exe
Token: 33	1632	cf87d7e808faec9cfd1d2dc39a80d634_JaffaCakes118.exe
Token: 34	1632	cf87d7e808faec9cfd1d2dc39a80d634_JaffaCakes118.exe
Token: 35	1632	cf87d7e808faec9cfd1d2dc39a80d634_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	2852	msdcsc.exe
Token: SeSecurityPrivilege	2852	msdcsc.exe
Token: SeTakeOwnershipPrivilege	2852	msdcsc.exe
Token: SeLoadDriverPrivilege	2852	msdcsc.exe
Token: SeSystemProfilePrivilege	2852	msdcsc.exe
Token: SeSystemtimePrivilege	2852	msdcsc.exe
Token: SeProfSingleProcessPrivilege	2852	msdcsc.exe
Token: SeIncBasePriorityPrivilege	2852	msdcsc.exe
Token: SeCreatePagefilePrivilege	2852	msdcsc.exe
Token: SeBackupPrivilege	2852	msdcsc.exe
Token: SeRestorePrivilege	2852	msdcsc.exe
Token: SeShutdownPrivilege	2852	msdcsc.exe
Token: SeDebugPrivilege	2852	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	2852	msdcsc.exe
Token: SeChangeNotifyPrivilege	2852	msdcsc.exe
Token: SeRemoteShutdownPrivilege	2852	msdcsc.exe
Token: SeUndockPrivilege	2852	msdcsc.exe
Token: SeManageVolumePrivilege	2852	msdcsc.exe
Token: SeImpersonatePrivilege	2852	msdcsc.exe
Token: SeCreateGlobalPrivilege	2852	msdcsc.exe
Token: 33	2852	msdcsc.exe
Token: 34	2852	msdcsc.exe
Token: 35	2852	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2852	msdcsc.exe

Suspicious use of WriteProcessMemory 22 IoCs

description	pid	Process	procid_target
PID 1632 wrote to memory of 2424	1632	cf87d7e808faec9cfd1d2dc39a80d634_JaffaCakes118.exe	31
PID 1632 wrote to memory of 2424	1632	cf87d7e808faec9cfd1d2dc39a80d634_JaffaCakes118.exe	31
PID 1632 wrote to memory of 2424	1632	cf87d7e808faec9cfd1d2dc39a80d634_JaffaCakes118.exe	31
PID 1632 wrote to memory of 2424	1632	cf87d7e808faec9cfd1d2dc39a80d634_JaffaCakes118.exe	31
PID 1632 wrote to memory of 2424	1632	cf87d7e808faec9cfd1d2dc39a80d634_JaffaCakes118.exe	31
PID 1632 wrote to memory of 2424	1632	cf87d7e808faec9cfd1d2dc39a80d634_JaffaCakes118.exe	31
PID 1632 wrote to memory of 2424	1632	cf87d7e808faec9cfd1d2dc39a80d634_JaffaCakes118.exe	31
PID 1632 wrote to memory of 2424	1632	cf87d7e808faec9cfd1d2dc39a80d634_JaffaCakes118.exe	31
PID 1632 wrote to memory of 2424	1632	cf87d7e808faec9cfd1d2dc39a80d634_JaffaCakes118.exe	31
PID 1632 wrote to memory of 2424	1632	cf87d7e808faec9cfd1d2dc39a80d634_JaffaCakes118.exe	31
PID 1632 wrote to memory of 2424	1632	cf87d7e808faec9cfd1d2dc39a80d634_JaffaCakes118.exe	31
PID 1632 wrote to memory of 2424	1632	cf87d7e808faec9cfd1d2dc39a80d634_JaffaCakes118.exe	31
PID 1632 wrote to memory of 2424	1632	cf87d7e808faec9cfd1d2dc39a80d634_JaffaCakes118.exe	31
PID 1632 wrote to memory of 2424	1632	cf87d7e808faec9cfd1d2dc39a80d634_JaffaCakes118.exe	31
PID 1632 wrote to memory of 2424	1632	cf87d7e808faec9cfd1d2dc39a80d634_JaffaCakes118.exe	31
PID 1632 wrote to memory of 2424	1632	cf87d7e808faec9cfd1d2dc39a80d634_JaffaCakes118.exe	31
PID 1632 wrote to memory of 2424	1632	cf87d7e808faec9cfd1d2dc39a80d634_JaffaCakes118.exe	31
PID 1632 wrote to memory of 2424	1632	cf87d7e808faec9cfd1d2dc39a80d634_JaffaCakes118.exe	31
PID 1632 wrote to memory of 2852	1632	cf87d7e808faec9cfd1d2dc39a80d634_JaffaCakes118.exe	32
PID 1632 wrote to memory of 2852	1632	cf87d7e808faec9cfd1d2dc39a80d634_JaffaCakes118.exe	32
PID 1632 wrote to memory of 2852	1632	cf87d7e808faec9cfd1d2dc39a80d634_JaffaCakes118.exe	32
PID 1632 wrote to memory of 2852	1632	cf87d7e808faec9cfd1d2dc39a80d634_JaffaCakes118.exe	32

System policy modification 1 TTPs 3 IoCs

evasion

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\CurrentVersion	msdcsc.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\CurrentVersion\Explorern	msdcsc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\CurrentVersion\Explorern\NoControlPanel = "1"	msdcsc.exe

C:\Users\Admin\AppData\Local\Temp\cf87d7e808faec9cfd1d2dc39a80d634_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\cf87d7e808faec9cfd1d2dc39a80d634_JaffaCakes118.exe"
1⤵
- Modifies WinLogon for persistence
- Loads dropped DLL
- Adds Run key to start application
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1632
- C:\Windows\SysWOW64\notepad.exe
  notepad
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2424
- C:\Windows\SysWOW64\MSDCSC\msdcsc.exe
  "C:\Windows\system32\MSDCSC\msdcsc.exe"
  2⤵
  - Modifies security service
  - Windows security bypass
  - Executes dropped EXE
  - Windows security modification
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - System policy modification
  PID:2852

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

Create or Modify System Process

T1543

Windows Service

T1543.003

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Create or Modify System Process

T1543

Windows Service

T1543.003

Defense Evasion

Impair Defenses

T1562

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\SysWOW64\MSDCSC\msdcsc.exe

Filesize
756KB

MD5
cf87d7e808faec9cfd1d2dc39a80d634

SHA1
43aa7194671f56326b06df68662994e8c5b2901e

SHA256
f593910c588856c47056520d2edf93ebd4bd9ae9c68205d657aac26276d65e82

SHA512
cb6b840b6b3896133f0a0dda6ee836cab7b9f8ab7e790853340e079db7800636a55285b05701f9c4cc8d68db38d40a8c78c2d28566b5395a767706a1d20b66c4

Download Submit
memory/1632-0-0x0000000000320000-0x0000000000321000-memory.dmp

Filesize
4KB

Download
memory/1632-29-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/2424-19-0x0000000000190000-0x0000000000191000-memory.dmp

Filesize
4KB

Download
memory/2424-4-0x0000000000080000-0x0000000000081000-memory.dmp

Filesize
4KB

Download
memory/2852-34-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/2852-38-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/2852-33-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/2852-31-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/2852-35-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/2852-36-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/2852-37-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/2852-32-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/2852-39-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/2852-40-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/2852-41-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/2852-42-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/2852-43-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/2852-44-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads