darkcomet | 562249cccb775a9dcb17b91ebfac9543e852c081cd2cdf9e0b8d9e47660230cf

General

Target

JaffaCakes118_a3bd8ec59125f50068c895de7005f915.exe
Size

921KB
MD5

a3bd8ec59125f50068c895de7005f915
SHA1

bb4ac8c5dfca4777509babf4a00ea5548c9281f1
SHA256

562249cccb775a9dcb17b91ebfac9543e852c081cd2cdf9e0b8d9e47660230cf
SHA512

ebcb2e16c0af8d004a07a1db0980f9a2c3399120ca6f4b253740332f45e1fd666cd2eb26ade1eb020d4d2255111d4d1421aa1881ed8490ca13109def767facb4
SSDEEP

12288:sEDxfJJmFVTIIIo2PYJrmfkDY0TB1vdLACxLEIMsBkqeV/70G:sWf+Hv1JrmfkBTB1D1ET5

Score

10^/10

darkcomet defense_evasion discovery persistence rat trojan

Malware Config

Signatures

Darkcomet
DarkComet is a remote access trojan (RAT) developed by Jean-Pierre Lesueur.
trojan rat darkcomet
Darkcomet family
darkcomet

Modifies security service 2 TTPs 1 IoCs

defense_evasion

Modify Registry

T1112

Windows Service

T1543.003

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\wscsvc\Start = "4"	vbc.exe

Windows security bypass 2 TTPs 2 IoCs

defense_evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	vbc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1"	vbc.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
1224	attrib.exe
780	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-1-5-21-1121399784-3202166597-3503557106-1000\Control Panel\International\Geo\Nation	vbc.exe

Executes dropped EXE 1 IoCs

pid	Process
2404	vbc.exe

Uses the VBS compiler for execution 1 TTPs

Command and Scripting Interpreter
T1059

Windows security modification 2 TTPs 2 IoCs

defense_evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	vbc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1"	vbc.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-1-5-21-1121399784-3202166597-3503557106-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\WinUpdtr = "C:\\Users\\Admin\\AppData\\Roaming\\WinUpdtr\\JaffaCakes118_a3bd8ec59125f50068c895de7005f915.exe"	JaffaCakes118_a3bd8ec59125f50068c895de7005f915.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 60 set thread context of 2404	60	JaffaCakes118_a3bd8ec59125f50068c895de7005f915.exe	87

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_a3bd8ec59125f50068c895de7005f915.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vbc.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
2404	vbc.exe

Suspicious use of AdjustPrivilegeToken 24 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2404	vbc.exe
Token: SeSecurityPrivilege	2404	vbc.exe
Token: SeTakeOwnershipPrivilege	2404	vbc.exe
Token: SeLoadDriverPrivilege	2404	vbc.exe
Token: SeSystemProfilePrivilege	2404	vbc.exe
Token: SeSystemtimePrivilege	2404	vbc.exe
Token: SeProfSingleProcessPrivilege	2404	vbc.exe
Token: SeIncBasePriorityPrivilege	2404	vbc.exe
Token: SeCreatePagefilePrivilege	2404	vbc.exe
Token: SeBackupPrivilege	2404	vbc.exe
Token: SeRestorePrivilege	2404	vbc.exe
Token: SeShutdownPrivilege	2404	vbc.exe
Token: SeDebugPrivilege	2404	vbc.exe
Token: SeSystemEnvironmentPrivilege	2404	vbc.exe
Token: SeChangeNotifyPrivilege	2404	vbc.exe
Token: SeRemoteShutdownPrivilege	2404	vbc.exe
Token: SeUndockPrivilege	2404	vbc.exe
Token: SeManageVolumePrivilege	2404	vbc.exe
Token: SeImpersonatePrivilege	2404	vbc.exe
Token: SeCreateGlobalPrivilege	2404	vbc.exe
Token: 33	2404	vbc.exe
Token: 34	2404	vbc.exe
Token: 35	2404	vbc.exe
Token: 36	2404	vbc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2404	vbc.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 60 wrote to memory of 2404	60	JaffaCakes118_a3bd8ec59125f50068c895de7005f915.exe	87
PID 60 wrote to memory of 2404	60	JaffaCakes118_a3bd8ec59125f50068c895de7005f915.exe	87
PID 60 wrote to memory of 2404	60	JaffaCakes118_a3bd8ec59125f50068c895de7005f915.exe	87
PID 60 wrote to memory of 2404	60	JaffaCakes118_a3bd8ec59125f50068c895de7005f915.exe	87
PID 60 wrote to memory of 2404	60	JaffaCakes118_a3bd8ec59125f50068c895de7005f915.exe	87
PID 60 wrote to memory of 2404	60	JaffaCakes118_a3bd8ec59125f50068c895de7005f915.exe	87
PID 60 wrote to memory of 2404	60	JaffaCakes118_a3bd8ec59125f50068c895de7005f915.exe	87
PID 60 wrote to memory of 2404	60	JaffaCakes118_a3bd8ec59125f50068c895de7005f915.exe	87
PID 60 wrote to memory of 2404	60	JaffaCakes118_a3bd8ec59125f50068c895de7005f915.exe	87
PID 60 wrote to memory of 2404	60	JaffaCakes118_a3bd8ec59125f50068c895de7005f915.exe	87
PID 60 wrote to memory of 2404	60	JaffaCakes118_a3bd8ec59125f50068c895de7005f915.exe	87
PID 60 wrote to memory of 2404	60	JaffaCakes118_a3bd8ec59125f50068c895de7005f915.exe	87
PID 60 wrote to memory of 2404	60	JaffaCakes118_a3bd8ec59125f50068c895de7005f915.exe	87
PID 60 wrote to memory of 2404	60	JaffaCakes118_a3bd8ec59125f50068c895de7005f915.exe	87
PID 2404 wrote to memory of 1048	2404	vbc.exe	90
PID 2404 wrote to memory of 1048	2404	vbc.exe	90
PID 2404 wrote to memory of 1048	2404	vbc.exe	90
PID 2404 wrote to memory of 2468	2404	vbc.exe	91
PID 2404 wrote to memory of 2468	2404	vbc.exe	91
PID 2404 wrote to memory of 2468	2404	vbc.exe	91
PID 1048 wrote to memory of 1224	1048	cmd.exe	94
PID 1048 wrote to memory of 1224	1048	cmd.exe	94
PID 1048 wrote to memory of 1224	1048	cmd.exe	94
PID 2468 wrote to memory of 780	2468	cmd.exe	95
PID 2468 wrote to memory of 780	2468	cmd.exe	95
PID 2468 wrote to memory of 780	2468	cmd.exe	95

System policy modification 1 TTPs 3 IoCs

defense_evasion

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\CurrentVersion	vbc.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\CurrentVersion\Explorern	vbc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\CurrentVersion\Explorern\NoControlPanel = "1"	vbc.exe

Views/modifies file attributes 1 TTPs 2 IoCs

defense_evasion

Hidden Files and Directories

T1564.001

pid	Process
1224	attrib.exe
780	attrib.exe

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a3bd8ec59125f50068c895de7005f915.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a3bd8ec59125f50068c895de7005f915.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:60
- C:\Users\Admin\AppData\Local\Temp\vbc.exe
  C:\Users\Admin\AppData\Local\Temp\vbc.exe
  2⤵
  - Modifies security service
  - Windows security bypass
  - Checks computer location settings
  - Executes dropped EXE
  - Windows security modification
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  - System policy modification
  PID:2404
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\vbc.exe" +s +h
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1048
  - - C:\Windows\SysWOW64\attrib.exe
      attrib "C:\Users\Admin\AppData\Local\Temp\vbc.exe" +s +h
      4⤵
      Sets file to hidden
      System Location Discovery: System Language Discovery
      Views/modifies file attributes
      PID:1224
- - 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:2468
  - - 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:780

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Defense Evasion

Hide Artifacts

2

T1564

Hidden Files and Directories

2

T1564.001

Impair Defenses

2

T1562

Disable or Modify Tools

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

C:\Users\Admin\AppData\Local\Temp\vbc.exe

Filesize
1.1MB

MD5
d881de17aa8f2e2c08cbb7b265f928f9

SHA1
08936aebc87decf0af6e8eada191062b5e65ac2a

SHA256
b3a37093609f9a20ad60b85a9fa9de2ba674cba9b5bd687729440c70ba619ca0

SHA512
5f23bfb1b8740247b36ed0ab741738c7d4c949736129e767213e321607d1ccd3e3a8428e4ba44bd28a275b5e3f6206285b1a522514b7ef7ea5e698d90a713d34

Download Submit
memory/60-13-0x0000000074B10000-0x00000000750C1000-memory.dmp

Filesize
5.7MB

Download
memory/60-1-0x0000000074B10000-0x00000000750C1000-memory.dmp

Filesize
5.7MB

Download
memory/60-2-0x0000000074B10000-0x00000000750C1000-memory.dmp

Filesize
5.7MB

Download
memory/60-0-0x0000000074B12000-0x0000000074B13000-memory.dmp

Filesize
4KB

Download
memory/2404-21-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/2404-23-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/2404-15-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/2404-12-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/2404-16-0x00000000022D0000-0x00000000022D1000-memory.dmp

Filesize
4KB

Download
memory/2404-17-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/2404-20-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/2404-19-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/2404-18-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/2404-7-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/2404-22-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/2404-11-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/2404-24-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/2404-25-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/2404-26-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/2404-27-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/2404-28-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/2404-29-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/2404-30-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/2404-31-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/2404-32-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/2404-33-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/2404-34-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads