darkcomet | bd66794fc5f240473bc307053fcb8bb547fe900591c71ebf35d8e80e6d56042c

General

Target

Mtgox-Code.exe
Size

661KB
MD5

3f1f75ca7d74031e8bbe925ea13bf649
SHA1

d5a678dd4228344cb7731ee1bd801e91482b3bcc
SHA256

89dba6832997b562206c404764c9644d6a5df70429a02c1ee809b081549efeda
SHA512

67ade3dc6926d09e5126c2348daa70d651c84b69c41135506ebc5e723fa96887b3983ca457dc5642b95e966f860bd3a91b9e63360073d429fc2a1fe080869f9a
SSDEEP

12288:O/cwfT1qnAXoDBoiFtUt4sgj5eXmqE5aBUsVVP3Nas+AGgaiPXvNsJ2qiqt6UOz8:acqchIt4F5U28naNAGgaivvNsJ9iqBIo

Score

10^/10

darkcomet guest16_min discovery persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16_min

C2

lakaisucksbigcawks.no-ip.biz:3940

Mutex

DCMIN_MUTEX-Z56GG71

Attributes

InstallPath
DCSCMIN\IMDCSC.exe
gencode
1zWRnrU8ybNP
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
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:\\Users\\Admin\\Documents\\DCSCMIN\\IMDCSC.exe"	vbc.exe

Executes dropped EXE 1 IoCs

pid	Process
3484	IMDCSC.exe

Uses the VBS compiler for execution 1 TTPs

Command and Scripting Interpreter
T1059

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\DarkComet RAT = "C:\\Users\\Admin\\Documents\\DCSCMIN\\IMDCSC.exe"	vbc.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 5072 set thread context of 4476	5072	Mtgox-Code.exe	82

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	Mtgox-Code.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vbc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	IMDCSC.exe

Suspicious use of AdjustPrivilegeToken 24 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	4476	vbc.exe
Token: SeSecurityPrivilege	4476	vbc.exe
Token: SeTakeOwnershipPrivilege	4476	vbc.exe
Token: SeLoadDriverPrivilege	4476	vbc.exe
Token: SeSystemProfilePrivilege	4476	vbc.exe
Token: SeSystemtimePrivilege	4476	vbc.exe
Token: SeProfSingleProcessPrivilege	4476	vbc.exe
Token: SeIncBasePriorityPrivilege	4476	vbc.exe
Token: SeCreatePagefilePrivilege	4476	vbc.exe
Token: SeBackupPrivilege	4476	vbc.exe
Token: SeRestorePrivilege	4476	vbc.exe
Token: SeShutdownPrivilege	4476	vbc.exe
Token: SeDebugPrivilege	4476	vbc.exe
Token: SeSystemEnvironmentPrivilege	4476	vbc.exe
Token: SeChangeNotifyPrivilege	4476	vbc.exe
Token: SeRemoteShutdownPrivilege	4476	vbc.exe
Token: SeUndockPrivilege	4476	vbc.exe
Token: SeManageVolumePrivilege	4476	vbc.exe
Token: SeImpersonatePrivilege	4476	vbc.exe
Token: SeCreateGlobalPrivilege	4476	vbc.exe
Token: 33	4476	vbc.exe
Token: 34	4476	vbc.exe
Token: 35	4476	vbc.exe
Token: 36	4476	vbc.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 5072 wrote to memory of 4476	5072	Mtgox-Code.exe	82
PID 5072 wrote to memory of 4476	5072	Mtgox-Code.exe	82
PID 5072 wrote to memory of 4476	5072	Mtgox-Code.exe	82
PID 5072 wrote to memory of 4476	5072	Mtgox-Code.exe	82
PID 5072 wrote to memory of 4476	5072	Mtgox-Code.exe	82
PID 5072 wrote to memory of 4476	5072	Mtgox-Code.exe	82
PID 5072 wrote to memory of 4476	5072	Mtgox-Code.exe	82
PID 5072 wrote to memory of 4476	5072	Mtgox-Code.exe	82
PID 5072 wrote to memory of 4476	5072	Mtgox-Code.exe	82
PID 5072 wrote to memory of 4476	5072	Mtgox-Code.exe	82
PID 5072 wrote to memory of 4476	5072	Mtgox-Code.exe	82
PID 5072 wrote to memory of 4476	5072	Mtgox-Code.exe	82
PID 5072 wrote to memory of 4476	5072	Mtgox-Code.exe	82
PID 5072 wrote to memory of 4476	5072	Mtgox-Code.exe	82
PID 4476 wrote to memory of 3484	4476	vbc.exe	83
PID 4476 wrote to memory of 3484	4476	vbc.exe	83
PID 4476 wrote to memory of 3484	4476	vbc.exe	83

C:\Users\Admin\AppData\Local\Temp\Mtgox-Code.exe
"C:\Users\Admin\AppData\Local\Temp\Mtgox-Code.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5072
- 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
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4476
- - 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:3484

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

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
1.1MB

MD5
d881de17aa8f2e2c08cbb7b265f928f9

SHA1
08936aebc87decf0af6e8eada191062b5e65ac2a

SHA256
b3a37093609f9a20ad60b85a9fa9de2ba674cba9b5bd687729440c70ba619ca0

SHA512
5f23bfb1b8740247b36ed0ab741738c7d4c949736129e767213e321607d1ccd3e3a8428e4ba44bd28a275b5e3f6206285b1a522514b7ef7ea5e698d90a713d34

Download Submit
memory/4476-5-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/4476-4-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/4476-7-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/4476-8-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/4476-10-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/4476-22-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/5072-0-0x00000000750B2000-0x00000000750B3000-memory.dmp

Filesize
4KB

Download
memory/5072-1-0x00000000750B0000-0x0000000075661000-memory.dmp

Filesize
5.7MB

Download
memory/5072-2-0x00000000750B0000-0x0000000075661000-memory.dmp

Filesize
5.7MB

Download
memory/5072-3-0x00000000750B0000-0x0000000075661000-memory.dmp

Filesize
5.7MB

Download
memory/5072-9-0x00000000750B0000-0x0000000075661000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads