darkcomet | 3c150414bce2210ee2faa74e838a249aa91afbe6cff16b22341ed95e1c1a32ca

General

Target

JaffaCakes118_3188c375b80e8fc346df4d1e9ef6e234.exe
Size

1.6MB
MD5

3188c375b80e8fc346df4d1e9ef6e234
SHA1

044e019125e62119268dde432093ab20059d6d23
SHA256

3c150414bce2210ee2faa74e838a249aa91afbe6cff16b22341ed95e1c1a32ca
SHA512

1e2c7bb1e71102d7791e28744c7884aef4008693fdc3809a29fc608ac40140073fdc66570eee82cf660ed3f9d5ee8e934124cb3d4e32817d8c4d45685ab9ef1b
SSDEEP

24576:Yqa3oaRq+QWdk7Bvt34TWv9b/FjRrKosLKBsA7rsPvftDwd48S5d6YAtGA3wUqnD:9b9jxKoOKGAenpTetTuAr8

Score

10^/10

darkcomet guest16 defense_evasion discovery persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

sever21.no-ip.org:860

Mutex

DC_MUTEX-AMPNZA1

Attributes

gencode
k0bXCRriWkXf
install
true
offline_keylogger
true
persistence
true
reg_key
explorer

rc4.plain

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\\k0bXCRriWkXf\\"	JaffaCakes118_3188c375b80e8fc346df4d1e9ef6e234.exe

Sets file to hidden 1 TTPs 2 IoCs

Modifies file attributes to stop it showing in Explorer etc.

defense_evasion

Hidden Files and Directories

T1564.001

pid	Process
2412	attrib.exe
2616	attrib.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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1170604239-850860757-3112005715-1000\Control Panel\International\Geo\Nation	JaffaCakes118_3188c375b80e8fc346df4d1e9ef6e234.exe

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-1-5-21-1170604239-850860757-3112005715-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\explorer = "C:\\Windows\\system32\\k0bXCRriWkXf\\"	JaffaCakes118_3188c375b80e8fc346df4d1e9ef6e234.exe

Drops file in System32 directory 3 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\	JaffaCakes118_3188c375b80e8fc346df4d1e9ef6e234.exe
File created	C:\Windows\SysWOW64\k0bXCRriWkXf\	JaffaCakes118_3188c375b80e8fc346df4d1e9ef6e234.exe
File opened for modification	C:\Windows\SysWOW64\k0bXCRriWkXf\	JaffaCakes118_3188c375b80e8fc346df4d1e9ef6e234.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1872 set thread context of 2252	1872	JaffaCakes118_3188c375b80e8fc346df4d1e9ef6e234.exe	84

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 6 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	attrib.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	attrib.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_3188c375b80e8fc346df4d1e9ef6e234.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_3188c375b80e8fc346df4d1e9ef6e234.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2252	JaffaCakes118_3188c375b80e8fc346df4d1e9ef6e234.exe

Suspicious use of AdjustPrivilegeToken 24 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2252	JaffaCakes118_3188c375b80e8fc346df4d1e9ef6e234.exe
Token: SeSecurityPrivilege	2252	JaffaCakes118_3188c375b80e8fc346df4d1e9ef6e234.exe
Token: SeTakeOwnershipPrivilege	2252	JaffaCakes118_3188c375b80e8fc346df4d1e9ef6e234.exe
Token: SeLoadDriverPrivilege	2252	JaffaCakes118_3188c375b80e8fc346df4d1e9ef6e234.exe
Token: SeSystemProfilePrivilege	2252	JaffaCakes118_3188c375b80e8fc346df4d1e9ef6e234.exe
Token: SeSystemtimePrivilege	2252	JaffaCakes118_3188c375b80e8fc346df4d1e9ef6e234.exe
Token: SeProfSingleProcessPrivilege	2252	JaffaCakes118_3188c375b80e8fc346df4d1e9ef6e234.exe
Token: SeIncBasePriorityPrivilege	2252	JaffaCakes118_3188c375b80e8fc346df4d1e9ef6e234.exe
Token: SeCreatePagefilePrivilege	2252	JaffaCakes118_3188c375b80e8fc346df4d1e9ef6e234.exe
Token: SeBackupPrivilege	2252	JaffaCakes118_3188c375b80e8fc346df4d1e9ef6e234.exe
Token: SeRestorePrivilege	2252	JaffaCakes118_3188c375b80e8fc346df4d1e9ef6e234.exe
Token: SeShutdownPrivilege	2252	JaffaCakes118_3188c375b80e8fc346df4d1e9ef6e234.exe
Token: SeDebugPrivilege	2252	JaffaCakes118_3188c375b80e8fc346df4d1e9ef6e234.exe
Token: SeSystemEnvironmentPrivilege	2252	JaffaCakes118_3188c375b80e8fc346df4d1e9ef6e234.exe
Token: SeChangeNotifyPrivilege	2252	JaffaCakes118_3188c375b80e8fc346df4d1e9ef6e234.exe
Token: SeRemoteShutdownPrivilege	2252	JaffaCakes118_3188c375b80e8fc346df4d1e9ef6e234.exe
Token: SeUndockPrivilege	2252	JaffaCakes118_3188c375b80e8fc346df4d1e9ef6e234.exe
Token: SeManageVolumePrivilege	2252	JaffaCakes118_3188c375b80e8fc346df4d1e9ef6e234.exe
Token: SeImpersonatePrivilege	2252	JaffaCakes118_3188c375b80e8fc346df4d1e9ef6e234.exe
Token: SeCreateGlobalPrivilege	2252	JaffaCakes118_3188c375b80e8fc346df4d1e9ef6e234.exe
Token: 33	2252	JaffaCakes118_3188c375b80e8fc346df4d1e9ef6e234.exe
Token: 34	2252	JaffaCakes118_3188c375b80e8fc346df4d1e9ef6e234.exe
Token: 35	2252	JaffaCakes118_3188c375b80e8fc346df4d1e9ef6e234.exe
Token: 36	2252	JaffaCakes118_3188c375b80e8fc346df4d1e9ef6e234.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1872	JaffaCakes118_3188c375b80e8fc346df4d1e9ef6e234.exe
2252	JaffaCakes118_3188c375b80e8fc346df4d1e9ef6e234.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 1872 wrote to memory of 2252	1872	JaffaCakes118_3188c375b80e8fc346df4d1e9ef6e234.exe	84
PID 1872 wrote to memory of 2252	1872	JaffaCakes118_3188c375b80e8fc346df4d1e9ef6e234.exe	84
PID 1872 wrote to memory of 2252	1872	JaffaCakes118_3188c375b80e8fc346df4d1e9ef6e234.exe	84
PID 1872 wrote to memory of 2252	1872	JaffaCakes118_3188c375b80e8fc346df4d1e9ef6e234.exe	84
PID 1872 wrote to memory of 2252	1872	JaffaCakes118_3188c375b80e8fc346df4d1e9ef6e234.exe	84
PID 1872 wrote to memory of 2252	1872	JaffaCakes118_3188c375b80e8fc346df4d1e9ef6e234.exe	84
PID 1872 wrote to memory of 2252	1872	JaffaCakes118_3188c375b80e8fc346df4d1e9ef6e234.exe	84
PID 1872 wrote to memory of 2252	1872	JaffaCakes118_3188c375b80e8fc346df4d1e9ef6e234.exe	84
PID 1872 wrote to memory of 2252	1872	JaffaCakes118_3188c375b80e8fc346df4d1e9ef6e234.exe	84
PID 1872 wrote to memory of 2252	1872	JaffaCakes118_3188c375b80e8fc346df4d1e9ef6e234.exe	84
PID 1872 wrote to memory of 2252	1872	JaffaCakes118_3188c375b80e8fc346df4d1e9ef6e234.exe	84
PID 1872 wrote to memory of 2252	1872	JaffaCakes118_3188c375b80e8fc346df4d1e9ef6e234.exe	84
PID 1872 wrote to memory of 2252	1872	JaffaCakes118_3188c375b80e8fc346df4d1e9ef6e234.exe	84
PID 1872 wrote to memory of 2252	1872	JaffaCakes118_3188c375b80e8fc346df4d1e9ef6e234.exe	84
PID 2252 wrote to memory of 4880	2252	JaffaCakes118_3188c375b80e8fc346df4d1e9ef6e234.exe	90
PID 2252 wrote to memory of 4880	2252	JaffaCakes118_3188c375b80e8fc346df4d1e9ef6e234.exe	90
PID 2252 wrote to memory of 4880	2252	JaffaCakes118_3188c375b80e8fc346df4d1e9ef6e234.exe	90
PID 2252 wrote to memory of 3816	2252	JaffaCakes118_3188c375b80e8fc346df4d1e9ef6e234.exe	91
PID 2252 wrote to memory of 3816	2252	JaffaCakes118_3188c375b80e8fc346df4d1e9ef6e234.exe	91
PID 2252 wrote to memory of 3816	2252	JaffaCakes118_3188c375b80e8fc346df4d1e9ef6e234.exe	91
PID 3816 wrote to memory of 2412	3816	cmd.exe	94
PID 3816 wrote to memory of 2412	3816	cmd.exe	94
PID 3816 wrote to memory of 2412	3816	cmd.exe	94
PID 4880 wrote to memory of 2616	4880	cmd.exe	95
PID 4880 wrote to memory of 2616	4880	cmd.exe	95
PID 4880 wrote to memory of 2616	4880	cmd.exe	95

Views/modifies file attributes 1 TTPs 2 IoCs

defense_evasion

Hidden Files and Directories

T1564.001

pid	Process
2412	attrib.exe
2616	attrib.exe

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3188c375b80e8fc346df4d1e9ef6e234.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3188c375b80e8fc346df4d1e9ef6e234.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1872
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3188c375b80e8fc346df4d1e9ef6e234.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3188c375b80e8fc346df4d1e9ef6e234.exe
  2⤵
  - Modifies WinLogon for persistence
  - Checks computer location settings
  - Adds Run key to start application
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2252
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3188c375b80e8fc346df4d1e9ef6e234.exe" +s +h
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4880
  - - C:\Windows\SysWOW64\attrib.exe
      attrib "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3188c375b80e8fc346df4d1e9ef6e234.exe" +s +h
      4⤵
      Sets file to hidden
      System Location Discovery: System Language Discovery
      Views/modifies file attributes
      PID:2616
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3816
  - - C:\Windows\SysWOW64\attrib.exe
      attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
      4⤵
      Sets file to hidden
      System Location Discovery: System Language Discovery
      Views/modifies file attributes
      PID:2412

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

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

Hide Artifacts

2

T1564

Hidden Files and Directories

Modify Registry

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/2252-2-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2252-3-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2252-4-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2252-5-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2252-6-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2252-8-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2252-9-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2252-10-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2252-7-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2252-11-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2252-12-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2252-13-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2252-14-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2252-15-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2252-16-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2252-17-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2252-18-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2252-19-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2252-20-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2252-21-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2252-22-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2252-23-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2252-24-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2252-25-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2252-26-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads