darkcomet | 4237b668cc59f27a70cecb52f798b8d571742d9ffe5e7a1087614e6a8fe97bbe

General

Target

1194f5446cf83a998dd3c5a6b20adf52_JaffaCakes118.exe
Size

724KB
MD5

1194f5446cf83a998dd3c5a6b20adf52
SHA1

dd0da335292c065e9f70151a9427cbe1c9cced96
SHA256

4237b668cc59f27a70cecb52f798b8d571742d9ffe5e7a1087614e6a8fe97bbe
SHA512

ebb1426ff4e89a5f8fdd2571de3dfbc831f4124e290a239aacc82ce530a19ab340bd92272b26ebefa7d11705553655f7726f08bc91e79e02af10820c30606b22
SSDEEP

12288:h2WJVCX0PjEUljKfg6+T99AhlWTq/IgPGsHXnzvLbLfw8X:hnJVfjEKjKh+T0hldIghXzvTf/

Score

10^/10

darkcomet guest16_min discovery persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16_min

C2

reportablebugs.no-ip.biz:789

Mutex

DCMIN_MUTEX-9U5NSKF

Attributes

InstallPath
DCSCMIN\IMDCSC.exe
gencode
HPaUy0bmUuDd
install
true
offline_keylogger
true
persistence
false
reg_key
DarkComet RAT

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:

vbc.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\Users\\Admin\\Documents\\DCSCMIN\\IMDCSC.exe"	vbc.exe

Executes dropped EXE 1 IoCs

Processes:

IMDCSC.exe

pid process

2776 IMDCSC.exe
Loads dropped DLL 1 IoCs

Processes:

vbc.exe

pid process

2116 vbc.exe
Uses the VBS compiler for execution 1 TTPs

Command and Scripting Interpreter
T1059

pid	process
2776	IMDCSC.exe

pid	process
2116	vbc.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

vbc.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-457978338-2990298471-2379561640-1000\Software\Microsoft\Windows\CurrentVersion\Run\DarkComet RAT = "C:\\Users\\Admin\\Documents\\DCSCMIN\\IMDCSC.exe"	vbc.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

1194f5446cf83a998dd3c5a6b20adf52_JaffaCakes118.exe

description pid process target process

PID 1988 set thread context of 2116 1988 1194f5446cf83a998dd3c5a6b20adf52_JaffaCakes118.exe vbc.exe

description	pid	process	target process
PID 1988 set thread context of 2116	1988	1194f5446cf83a998dd3c5a6b20adf52_JaffaCakes118.exe	vbc.exe

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

Processes:

vbc.exeIMDCSC.exe1194f5446cf83a998dd3c5a6b20adf52_JaffaCakes118.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vbc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	IMDCSC.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	1194f5446cf83a998dd3c5a6b20adf52_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 23 IoCs

Processes:

vbc.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	2116	vbc.exe
Token: SeSecurityPrivilege	2116	vbc.exe
Token: SeTakeOwnershipPrivilege	2116	vbc.exe
Token: SeLoadDriverPrivilege	2116	vbc.exe
Token: SeSystemProfilePrivilege	2116	vbc.exe
Token: SeSystemtimePrivilege	2116	vbc.exe
Token: SeProfSingleProcessPrivilege	2116	vbc.exe
Token: SeIncBasePriorityPrivilege	2116	vbc.exe
Token: SeCreatePagefilePrivilege	2116	vbc.exe
Token: SeBackupPrivilege	2116	vbc.exe
Token: SeRestorePrivilege	2116	vbc.exe
Token: SeShutdownPrivilege	2116	vbc.exe
Token: SeDebugPrivilege	2116	vbc.exe
Token: SeSystemEnvironmentPrivilege	2116	vbc.exe
Token: SeChangeNotifyPrivilege	2116	vbc.exe
Token: SeRemoteShutdownPrivilege	2116	vbc.exe
Token: SeUndockPrivilege	2116	vbc.exe
Token: SeManageVolumePrivilege	2116	vbc.exe
Token: SeImpersonatePrivilege	2116	vbc.exe
Token: SeCreateGlobalPrivilege	2116	vbc.exe
Token: 33	2116	vbc.exe
Token: 34	2116	vbc.exe
Token: 35	2116	vbc.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

1194f5446cf83a998dd3c5a6b20adf52_JaffaCakes118.exevbc.exe

description	pid	process	target process
PID 1988 wrote to memory of 2116	1988	1194f5446cf83a998dd3c5a6b20adf52_JaffaCakes118.exe	vbc.exe
PID 1988 wrote to memory of 2116	1988	1194f5446cf83a998dd3c5a6b20adf52_JaffaCakes118.exe	vbc.exe
PID 1988 wrote to memory of 2116	1988	1194f5446cf83a998dd3c5a6b20adf52_JaffaCakes118.exe	vbc.exe
PID 1988 wrote to memory of 2116	1988	1194f5446cf83a998dd3c5a6b20adf52_JaffaCakes118.exe	vbc.exe
PID 1988 wrote to memory of 2116	1988	1194f5446cf83a998dd3c5a6b20adf52_JaffaCakes118.exe	vbc.exe
PID 1988 wrote to memory of 2116	1988	1194f5446cf83a998dd3c5a6b20adf52_JaffaCakes118.exe	vbc.exe
PID 1988 wrote to memory of 2116	1988	1194f5446cf83a998dd3c5a6b20adf52_JaffaCakes118.exe	vbc.exe
PID 1988 wrote to memory of 2116	1988	1194f5446cf83a998dd3c5a6b20adf52_JaffaCakes118.exe	vbc.exe
PID 1988 wrote to memory of 2116	1988	1194f5446cf83a998dd3c5a6b20adf52_JaffaCakes118.exe	vbc.exe
PID 1988 wrote to memory of 2116	1988	1194f5446cf83a998dd3c5a6b20adf52_JaffaCakes118.exe	vbc.exe
PID 1988 wrote to memory of 2116	1988	1194f5446cf83a998dd3c5a6b20adf52_JaffaCakes118.exe	vbc.exe
PID 1988 wrote to memory of 2116	1988	1194f5446cf83a998dd3c5a6b20adf52_JaffaCakes118.exe	vbc.exe
PID 1988 wrote to memory of 2116	1988	1194f5446cf83a998dd3c5a6b20adf52_JaffaCakes118.exe	vbc.exe
PID 2116 wrote to memory of 2776	2116	vbc.exe	IMDCSC.exe
PID 2116 wrote to memory of 2776	2116	vbc.exe	IMDCSC.exe
PID 2116 wrote to memory of 2776	2116	vbc.exe	IMDCSC.exe
PID 2116 wrote to memory of 2776	2116	vbc.exe	IMDCSC.exe

C:\Users\Admin\AppData\Local\Temp\1194f5446cf83a998dd3c5a6b20adf52_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\1194f5446cf83a998dd3c5a6b20adf52_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1988
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
  C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
  2⤵
  - Modifies WinLogon for persistence
  - Loads dropped DLL
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2116
- - C:\Users\Admin\Documents\DCSCMIN\IMDCSC.exe
    "C:\Users\Admin\Documents\DCSCMIN\IMDCSC.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:2776

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

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

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

\Users\Admin\Documents\DCSCMIN\IMDCSC.exe

Filesize
1.1MB

MD5
34aa912defa18c2c129f1e09d75c1d7e

SHA1
9c3046324657505a30ecd9b1fdb46c05bde7d470

SHA256
6df94b7fa33f1b87142adc39b3db0613fc520d9e7a5fd6a5301dd7f51f8d0386

SHA512
d1ea9368f5d7166180612fd763c87afb647d088498887961f5e7fb0a10f4a808bd5928e8a3666d70ff794093c51ecca8816f75dd47652fd4eb23dce7f9aa1f98

Download Submit
memory/1988-0-0x0000000074AF1000-0x0000000074AF2000-memory.dmp

Filesize
4KB

Download
memory/1988-1-0x0000000074AF0000-0x000000007509B000-memory.dmp

Filesize
5.7MB

Download
memory/1988-2-0x0000000074AF0000-0x000000007509B000-memory.dmp

Filesize
5.7MB

Download
memory/1988-24-0x0000000074AF0000-0x000000007509B000-memory.dmp

Filesize
5.7MB

Download
memory/2116-22-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2116-7-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2116-19-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2116-17-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2116-15-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2116-13-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2116-11-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2116-21-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2116-5-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2116-23-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2116-9-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2116-25-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2116-26-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2116-3-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2116-34-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads