darkcomet | 6a0afda24907d20335516787f7ac098a43a23692c6b38e3eef869e865f32e27a

Analysis

max time kernel
150s
max time network
18s
platform
windows7_x64
resource
win7-20240705-en
resource tags

arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
submitted
13-07-2024 17:50

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General

Target

42b88a5156dd010772f83d06a6d693a5_JaffaCakes118.exe
Size

967KB
MD5

42b88a5156dd010772f83d06a6d693a5
SHA1

93e547a8b458dcb1b21c9ec0f81724b55fb9819e
SHA256

6a0afda24907d20335516787f7ac098a43a23692c6b38e3eef869e865f32e27a
SHA512

a6cab1d7b6e76227353bec86c6af1301a21e4a21c29a71d8d5b248a109ce263cffb3d196708eaa2e457a79039ac4009aa379e756648375d05e4ddc81cfac59c6
SSDEEP

24576:UcAZIu92+1j8BcFRyRIrq13y804Zf3QJmj+utGWEpwDEF0R:UlCCUIJF23QcrtGY

Score

10^/10

darkcomet guest16 persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

pevjackrox.no-ip.biz :1604

Mutex

DC_MUTEX-Z2E3D3A

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
PAlGXZ6wkuf3
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:\\MSDCSC\\msdcsc.exe"	stub.exe

Executes dropped EXE 2 IoCs

pid	Process
2240	stub.exe
2912	msdcsc.exe

Loads dropped DLL 4 IoCs

pid	Process
1068	42b88a5156dd010772f83d06a6d693a5_JaffaCakes118.exe
1068	42b88a5156dd010772f83d06a6d693a5_JaffaCakes118.exe
2240	stub.exe
2240	stub.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-1-5-21-2172136094-3310281978-782691160-1000\Software\Microsoft\Windows\CurrentVersion\Run\Microupdate = "C:\\MSDCSC\\msdcsc.exe"	stub.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2172136094-3310281978-782691160-1000\Software\Microsoft\Windows\CurrentVersion\Run\Microupdate = "C:\\MSDCSC\\msdcsc.exe"	msdcsc.exe

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

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 47 IoCs

description	pid	Process
Token: SeDebugPrivilege	1068	42b88a5156dd010772f83d06a6d693a5_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	2240	stub.exe
Token: SeSecurityPrivilege	2240	stub.exe
Token: SeTakeOwnershipPrivilege	2240	stub.exe
Token: SeLoadDriverPrivilege	2240	stub.exe
Token: SeSystemProfilePrivilege	2240	stub.exe
Token: SeSystemtimePrivilege	2240	stub.exe
Token: SeProfSingleProcessPrivilege	2240	stub.exe
Token: SeIncBasePriorityPrivilege	2240	stub.exe
Token: SeCreatePagefilePrivilege	2240	stub.exe
Token: SeBackupPrivilege	2240	stub.exe
Token: SeRestorePrivilege	2240	stub.exe
Token: SeShutdownPrivilege	2240	stub.exe
Token: SeDebugPrivilege	2240	stub.exe
Token: SeSystemEnvironmentPrivilege	2240	stub.exe
Token: SeChangeNotifyPrivilege	2240	stub.exe
Token: SeRemoteShutdownPrivilege	2240	stub.exe
Token: SeUndockPrivilege	2240	stub.exe
Token: SeManageVolumePrivilege	2240	stub.exe
Token: SeImpersonatePrivilege	2240	stub.exe
Token: SeCreateGlobalPrivilege	2240	stub.exe
Token: 33	2240	stub.exe
Token: 34	2240	stub.exe
Token: 35	2240	stub.exe
Token: SeIncreaseQuotaPrivilege	2912	msdcsc.exe
Token: SeSecurityPrivilege	2912	msdcsc.exe
Token: SeTakeOwnershipPrivilege	2912	msdcsc.exe
Token: SeLoadDriverPrivilege	2912	msdcsc.exe
Token: SeSystemProfilePrivilege	2912	msdcsc.exe
Token: SeSystemtimePrivilege	2912	msdcsc.exe
Token: SeProfSingleProcessPrivilege	2912	msdcsc.exe
Token: SeIncBasePriorityPrivilege	2912	msdcsc.exe
Token: SeCreatePagefilePrivilege	2912	msdcsc.exe
Token: SeBackupPrivilege	2912	msdcsc.exe
Token: SeRestorePrivilege	2912	msdcsc.exe
Token: SeShutdownPrivilege	2912	msdcsc.exe
Token: SeDebugPrivilege	2912	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	2912	msdcsc.exe
Token: SeChangeNotifyPrivilege	2912	msdcsc.exe
Token: SeRemoteShutdownPrivilege	2912	msdcsc.exe
Token: SeUndockPrivilege	2912	msdcsc.exe
Token: SeManageVolumePrivilege	2912	msdcsc.exe
Token: SeImpersonatePrivilege	2912	msdcsc.exe
Token: SeCreateGlobalPrivilege	2912	msdcsc.exe
Token: 33	2912	msdcsc.exe
Token: 34	2912	msdcsc.exe
Token: 35	2912	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2912	msdcsc.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1068 wrote to memory of 2240	1068	42b88a5156dd010772f83d06a6d693a5_JaffaCakes118.exe	29
PID 1068 wrote to memory of 2240	1068	42b88a5156dd010772f83d06a6d693a5_JaffaCakes118.exe	29
PID 1068 wrote to memory of 2240	1068	42b88a5156dd010772f83d06a6d693a5_JaffaCakes118.exe	29
PID 1068 wrote to memory of 2240	1068	42b88a5156dd010772f83d06a6d693a5_JaffaCakes118.exe	29
PID 2240 wrote to memory of 2912	2240	stub.exe	30
PID 2240 wrote to memory of 2912	2240	stub.exe	30
PID 2240 wrote to memory of 2912	2240	stub.exe	30
PID 2240 wrote to memory of 2912	2240	stub.exe	30

C:\Users\Admin\AppData\Local\Temp\42b88a5156dd010772f83d06a6d693a5_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\42b88a5156dd010772f83d06a6d693a5_JaffaCakes118.exe"
1⤵
- Loads dropped DLL
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1068
- C:\Users\Admin\AppData\Local\Temp\stub.exe
  "C:\Users\Admin\AppData\Local\Temp\stub.exe"
  2⤵
  - Modifies WinLogon for persistence
  - Executes dropped EXE
  - Loads dropped DLL
  - Adds Run key to start application
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2240
- - C:\MSDCSC\msdcsc.exe
    "C:\MSDCSC\msdcsc.exe"
    3⤵
    - Executes dropped EXE
    - Adds Run key to start application
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    PID:2912

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

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

\Users\Admin\AppData\Local\Temp\stub.exe

Filesize
660KB

MD5
021db2874a864a5e58c528ebbdd01043

SHA1
87a4af89655b221ded037f64725d1650518f3d3a

SHA256
2e6a8499714988264f2210b856ced3af4655b66ec52a79a09a333eb5940af59f

SHA512
0050bfe82a6d4dfd42db041aeff1865b720d6f246b8e34cd4343dac50929f33066e10e9c030634ca234a369d1c7f62e0ba282c6fcb1306b93664421f58da2760

Download Submit
memory/1068-28-0x0000000074A80000-0x000000007502B000-memory.dmp

Filesize
5.7MB

Download
memory/1068-1-0x0000000074A80000-0x000000007502B000-memory.dmp

Filesize
5.7MB

Download
memory/1068-2-0x0000000074A80000-0x000000007502B000-memory.dmp

Filesize
5.7MB

Download
memory/1068-0-0x0000000074A81000-0x0000000074A82000-memory.dmp

Filesize
4KB

Download
memory/2240-12-0x00000000003E0000-0x00000000003E1000-memory.dmp

Filesize
4KB

Download
memory/2240-25-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/2912-30-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/2912-34-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/2912-29-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/2912-26-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/2912-31-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/2912-32-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/2912-33-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/2912-27-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/2912-35-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/2912-36-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/2912-37-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/2912-38-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/2912-39-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/2912-40-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads