darkcomet | fed56117e88f7dd3664190e9dbc2b55411efe9a793aa1a7dac358d7d34f66170

General

Target

08cf2a748bbae2d923864859b7399b72_JaffaCakes118.exe
Size

848KB
MD5

08cf2a748bbae2d923864859b7399b72
SHA1

6dbaa83040a728d12a817c74708016f707f7a506
SHA256

fed56117e88f7dd3664190e9dbc2b55411efe9a793aa1a7dac358d7d34f66170
SHA512

6a358f1ff7d3a0263e52a4d5fcff7cb95141a93dbbaf509e9d9d85004ed291fbd4156a18b017d819cd9210c05c3f5ab657d92c6496610220298d11038b4e0e38
SSDEEP

24576:d3nbWmJVJFwSddIXvfhqbiaxvRxq95HD0QZh9u:pamdZdcBYy0

Score

10^/10

darkcomet persistence rat trojan

Malware Config

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

Processes:

08cf2a748bbae2d923864859b7399b72_JaffaCakes118.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\Users\\Admin\\AppData\\Local\\Temp\\Dastan\\msdcsc.exe"	08cf2a748bbae2d923864859b7399b72_JaffaCakes118.exe

Drops file in Drivers directory 1 IoCs

Processes:

08cf2a748bbae2d923864859b7399b72_JaffaCakes118.exe

description ioc process

File opened for modification C:\Windows\system32\drivers\etc\hosts 08cf2a748bbae2d923864859b7399b72_JaffaCakes118.exe

description	ioc	process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	08cf2a748bbae2d923864859b7399b72_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

Processes:

08cf2a748bbae2d923864859b7399b72_JaffaCakes118.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-4204450073-1267028356-951339405-1000\Control Panel\International\Geo\Nation	08cf2a748bbae2d923864859b7399b72_JaffaCakes118.exe

Executes dropped EXE 1 IoCs

Processes:

msdcsc.exe

pid process

3528 msdcsc.exe

pid	process
3528	msdcsc.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

08cf2a748bbae2d923864859b7399b72_JaffaCakes118.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-4204450073-1267028356-951339405-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Dastan = "C:\\Users\\Admin\\AppData\\Local\\Temp\\Dastan\\msdcsc.exe"	08cf2a748bbae2d923864859b7399b72_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

msdcsc.exe

description pid process target process

PID 3528 set thread context of 4392 3528 msdcsc.exe iexplore.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

description	pid	process	target process
PID 3528 set thread context of 4392	3528	msdcsc.exe	iexplore.exe

Modifies registry class 1 IoCs

Processes:

08cf2a748bbae2d923864859b7399b72_JaffaCakes118.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	08cf2a748bbae2d923864859b7399b72_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

Processes:

08cf2a748bbae2d923864859b7399b72_JaffaCakes118.exemsdcsc.exeiexplore.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	2860	08cf2a748bbae2d923864859b7399b72_JaffaCakes118.exe
Token: SeSecurityPrivilege	2860	08cf2a748bbae2d923864859b7399b72_JaffaCakes118.exe
Token: SeTakeOwnershipPrivilege	2860	08cf2a748bbae2d923864859b7399b72_JaffaCakes118.exe
Token: SeLoadDriverPrivilege	2860	08cf2a748bbae2d923864859b7399b72_JaffaCakes118.exe
Token: SeSystemProfilePrivilege	2860	08cf2a748bbae2d923864859b7399b72_JaffaCakes118.exe
Token: SeSystemtimePrivilege	2860	08cf2a748bbae2d923864859b7399b72_JaffaCakes118.exe
Token: SeProfSingleProcessPrivilege	2860	08cf2a748bbae2d923864859b7399b72_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	2860	08cf2a748bbae2d923864859b7399b72_JaffaCakes118.exe
Token: SeCreatePagefilePrivilege	2860	08cf2a748bbae2d923864859b7399b72_JaffaCakes118.exe
Token: SeBackupPrivilege	2860	08cf2a748bbae2d923864859b7399b72_JaffaCakes118.exe
Token: SeRestorePrivilege	2860	08cf2a748bbae2d923864859b7399b72_JaffaCakes118.exe
Token: SeShutdownPrivilege	2860	08cf2a748bbae2d923864859b7399b72_JaffaCakes118.exe
Token: SeDebugPrivilege	2860	08cf2a748bbae2d923864859b7399b72_JaffaCakes118.exe
Token: SeSystemEnvironmentPrivilege	2860	08cf2a748bbae2d923864859b7399b72_JaffaCakes118.exe
Token: SeChangeNotifyPrivilege	2860	08cf2a748bbae2d923864859b7399b72_JaffaCakes118.exe
Token: SeRemoteShutdownPrivilege	2860	08cf2a748bbae2d923864859b7399b72_JaffaCakes118.exe
Token: SeUndockPrivilege	2860	08cf2a748bbae2d923864859b7399b72_JaffaCakes118.exe
Token: SeManageVolumePrivilege	2860	08cf2a748bbae2d923864859b7399b72_JaffaCakes118.exe
Token: SeImpersonatePrivilege	2860	08cf2a748bbae2d923864859b7399b72_JaffaCakes118.exe
Token: SeCreateGlobalPrivilege	2860	08cf2a748bbae2d923864859b7399b72_JaffaCakes118.exe
Token: 33	2860	08cf2a748bbae2d923864859b7399b72_JaffaCakes118.exe
Token: 34	2860	08cf2a748bbae2d923864859b7399b72_JaffaCakes118.exe
Token: 35	2860	08cf2a748bbae2d923864859b7399b72_JaffaCakes118.exe
Token: 36	2860	08cf2a748bbae2d923864859b7399b72_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	3528	msdcsc.exe
Token: SeSecurityPrivilege	3528	msdcsc.exe
Token: SeTakeOwnershipPrivilege	3528	msdcsc.exe
Token: SeLoadDriverPrivilege	3528	msdcsc.exe
Token: SeSystemProfilePrivilege	3528	msdcsc.exe
Token: SeSystemtimePrivilege	3528	msdcsc.exe
Token: SeProfSingleProcessPrivilege	3528	msdcsc.exe
Token: SeIncBasePriorityPrivilege	3528	msdcsc.exe
Token: SeCreatePagefilePrivilege	3528	msdcsc.exe
Token: SeBackupPrivilege	3528	msdcsc.exe
Token: SeRestorePrivilege	3528	msdcsc.exe
Token: SeShutdownPrivilege	3528	msdcsc.exe
Token: SeDebugPrivilege	3528	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	3528	msdcsc.exe
Token: SeChangeNotifyPrivilege	3528	msdcsc.exe
Token: SeRemoteShutdownPrivilege	3528	msdcsc.exe
Token: SeUndockPrivilege	3528	msdcsc.exe
Token: SeManageVolumePrivilege	3528	msdcsc.exe
Token: SeImpersonatePrivilege	3528	msdcsc.exe
Token: SeCreateGlobalPrivilege	3528	msdcsc.exe
Token: 33	3528	msdcsc.exe
Token: 34	3528	msdcsc.exe
Token: 35	3528	msdcsc.exe
Token: 36	3528	msdcsc.exe
Token: SeIncreaseQuotaPrivilege	4392	iexplore.exe
Token: SeSecurityPrivilege	4392	iexplore.exe
Token: SeTakeOwnershipPrivilege	4392	iexplore.exe
Token: SeLoadDriverPrivilege	4392	iexplore.exe
Token: SeSystemProfilePrivilege	4392	iexplore.exe
Token: SeSystemtimePrivilege	4392	iexplore.exe
Token: SeProfSingleProcessPrivilege	4392	iexplore.exe
Token: SeIncBasePriorityPrivilege	4392	iexplore.exe
Token: SeCreatePagefilePrivilege	4392	iexplore.exe
Token: SeBackupPrivilege	4392	iexplore.exe
Token: SeRestorePrivilege	4392	iexplore.exe
Token: SeShutdownPrivilege	4392	iexplore.exe
Token: SeDebugPrivilege	4392	iexplore.exe
Token: SeSystemEnvironmentPrivilege	4392	iexplore.exe
Token: SeChangeNotifyPrivilege	4392	iexplore.exe
Token: SeRemoteShutdownPrivilege	4392	iexplore.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

iexplore.exe

pid process

4392 iexplore.exe

pid	process
4392	iexplore.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

08cf2a748bbae2d923864859b7399b72_JaffaCakes118.exemsdcsc.exe

description	pid	process	target process
PID 2860 wrote to memory of 3528	2860	08cf2a748bbae2d923864859b7399b72_JaffaCakes118.exe	msdcsc.exe
PID 2860 wrote to memory of 3528	2860	08cf2a748bbae2d923864859b7399b72_JaffaCakes118.exe	msdcsc.exe
PID 2860 wrote to memory of 3528	2860	08cf2a748bbae2d923864859b7399b72_JaffaCakes118.exe	msdcsc.exe
PID 3528 wrote to memory of 4392	3528	msdcsc.exe	iexplore.exe
PID 3528 wrote to memory of 4392	3528	msdcsc.exe	iexplore.exe
PID 3528 wrote to memory of 4392	3528	msdcsc.exe	iexplore.exe
PID 3528 wrote to memory of 4392	3528	msdcsc.exe	iexplore.exe
PID 3528 wrote to memory of 4392	3528	msdcsc.exe	iexplore.exe

C:\Users\Admin\AppData\Local\Temp\08cf2a748bbae2d923864859b7399b72_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\08cf2a748bbae2d923864859b7399b72_JaffaCakes118.exe"
1⤵
- Modifies WinLogon for persistence
- Drops file in Drivers directory
- Checks computer location settings
- Adds Run key to start application
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2860

C:\Users\Admin\AppData\Local\Temp\Dastan\msdcsc.exe
"C:\Users\Admin\AppData\Local\Temp\Dastan\msdcsc.exe"
2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3528

C:\Program Files (x86)\Internet Explorer\iexplore.exe
"C:\Program Files (x86)\Internet Explorer\iexplore.exe"
3⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:4392

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

2

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Winlogon Helper DLL

1

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

2

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Winlogon Helper DLL

1

T1547.004

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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Downloads

C:\Users\Admin\AppData\Local\Temp\Dastan\msdcsc.exe
Filesize
848KB

MD5
08cf2a748bbae2d923864859b7399b72

SHA1
6dbaa83040a728d12a817c74708016f707f7a506

SHA256
fed56117e88f7dd3664190e9dbc2b55411efe9a793aa1a7dac358d7d34f66170

SHA512
6a358f1ff7d3a0263e52a4d5fcff7cb95141a93dbbaf509e9d9d85004ed291fbd4156a18b017d819cd9210c05c3f5ab657d92c6496610220298d11038b4e0e38

Download Submit
memory/2860-0-0x0000000002260000-0x0000000002261000-memory.dmp

Filesize
4KB

Download
memory/2860-63-0x0000000000400000-0x00000000004E2000-memory.dmp

Filesize
904KB

Download
memory/3528-64-0x0000000002140000-0x0000000002141000-memory.dmp

Filesize
4KB

Download
memory/3528-66-0x0000000000400000-0x00000000004E2000-memory.dmp

Filesize
904KB

Download
memory/4392-65-0x0000000000400000-0x00000000004E2000-memory.dmp

Filesize
904KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads