darkcomet | 553d286628324a3f5f848670db557bbd0c373f005ee4e4603933955d94ca655d

General

Target

JaffaCakes118_ac7cc4ea0a1b744d77b4ad9dc50e2ce0.exe
Size

1.1MB
MD5

ac7cc4ea0a1b744d77b4ad9dc50e2ce0
SHA1

a071ba499560b57e6c120f3bea8d26ea495a619c
SHA256

553d286628324a3f5f848670db557bbd0c373f005ee4e4603933955d94ca655d
SHA512

9cb27f0778d61484bec18c195503f1ac372cd72b932101fe5e64db66e0b92cba05e3c46fea706169832f98bd43a4af200852ae7d7c901ce0e5c6eddaf70ba48c
SSDEEP

12288:MJSy5AojXI+BLsNeGyIROGyA73t6W/NB7S1dv6DYc5WjHPi4FIBxM6wtMIhvlCic:KJZE2LsNis8GW+tXwZx8qZd0wd

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
3732	attrib.exe
2032	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-1-5-21-2211717155-842865201-3404093980-1000\Control Panel\International\Geo\Nation	vbc.exe

Executes dropped EXE 1 IoCs

pid	Process
3528	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-1-5-21-2211717155-842865201-3404093980-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\WinUpdtr = "C:\\Users\\Admin\\AppData\\Roaming\\WinUpdtr\\JaffaCakes118_ac7cc4ea0a1b744d77b4ad9dc50e2ce0.exe"	JaffaCakes118_ac7cc4ea0a1b744d77b4ad9dc50e2ce0.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1724 set thread context of 3528	1724	JaffaCakes118_ac7cc4ea0a1b744d77b4ad9dc50e2ce0.exe	85

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	JaffaCakes118_ac7cc4ea0a1b744d77b4ad9dc50e2ce0.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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	attrib.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	attrib.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3528	vbc.exe

Suspicious use of AdjustPrivilegeToken 24 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	3528	vbc.exe
Token: SeSecurityPrivilege	3528	vbc.exe
Token: SeTakeOwnershipPrivilege	3528	vbc.exe
Token: SeLoadDriverPrivilege	3528	vbc.exe
Token: SeSystemProfilePrivilege	3528	vbc.exe
Token: SeSystemtimePrivilege	3528	vbc.exe
Token: SeProfSingleProcessPrivilege	3528	vbc.exe
Token: SeIncBasePriorityPrivilege	3528	vbc.exe
Token: SeCreatePagefilePrivilege	3528	vbc.exe
Token: SeBackupPrivilege	3528	vbc.exe
Token: SeRestorePrivilege	3528	vbc.exe
Token: SeShutdownPrivilege	3528	vbc.exe
Token: SeDebugPrivilege	3528	vbc.exe
Token: SeSystemEnvironmentPrivilege	3528	vbc.exe
Token: SeChangeNotifyPrivilege	3528	vbc.exe
Token: SeRemoteShutdownPrivilege	3528	vbc.exe
Token: SeUndockPrivilege	3528	vbc.exe
Token: SeManageVolumePrivilege	3528	vbc.exe
Token: SeImpersonatePrivilege	3528	vbc.exe
Token: SeCreateGlobalPrivilege	3528	vbc.exe
Token: 33	3528	vbc.exe
Token: 34	3528	vbc.exe
Token: 35	3528	vbc.exe
Token: 36	3528	vbc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3528	vbc.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 1724 wrote to memory of 3528	1724	JaffaCakes118_ac7cc4ea0a1b744d77b4ad9dc50e2ce0.exe	85
PID 1724 wrote to memory of 3528	1724	JaffaCakes118_ac7cc4ea0a1b744d77b4ad9dc50e2ce0.exe	85
PID 1724 wrote to memory of 3528	1724	JaffaCakes118_ac7cc4ea0a1b744d77b4ad9dc50e2ce0.exe	85
PID 1724 wrote to memory of 3528	1724	JaffaCakes118_ac7cc4ea0a1b744d77b4ad9dc50e2ce0.exe	85
PID 1724 wrote to memory of 3528	1724	JaffaCakes118_ac7cc4ea0a1b744d77b4ad9dc50e2ce0.exe	85
PID 1724 wrote to memory of 3528	1724	JaffaCakes118_ac7cc4ea0a1b744d77b4ad9dc50e2ce0.exe	85
PID 1724 wrote to memory of 3528	1724	JaffaCakes118_ac7cc4ea0a1b744d77b4ad9dc50e2ce0.exe	85
PID 1724 wrote to memory of 3528	1724	JaffaCakes118_ac7cc4ea0a1b744d77b4ad9dc50e2ce0.exe	85
PID 1724 wrote to memory of 3528	1724	JaffaCakes118_ac7cc4ea0a1b744d77b4ad9dc50e2ce0.exe	85
PID 1724 wrote to memory of 3528	1724	JaffaCakes118_ac7cc4ea0a1b744d77b4ad9dc50e2ce0.exe	85
PID 1724 wrote to memory of 3528	1724	JaffaCakes118_ac7cc4ea0a1b744d77b4ad9dc50e2ce0.exe	85
PID 1724 wrote to memory of 3528	1724	JaffaCakes118_ac7cc4ea0a1b744d77b4ad9dc50e2ce0.exe	85
PID 1724 wrote to memory of 3528	1724	JaffaCakes118_ac7cc4ea0a1b744d77b4ad9dc50e2ce0.exe	85
PID 1724 wrote to memory of 3528	1724	JaffaCakes118_ac7cc4ea0a1b744d77b4ad9dc50e2ce0.exe	85
PID 3528 wrote to memory of 320	3528	vbc.exe	87
PID 3528 wrote to memory of 320	3528	vbc.exe	87
PID 3528 wrote to memory of 320	3528	vbc.exe	87
PID 3528 wrote to memory of 2848	3528	vbc.exe	89
PID 3528 wrote to memory of 2848	3528	vbc.exe	89
PID 3528 wrote to memory of 2848	3528	vbc.exe	89
PID 320 wrote to memory of 2032	320	cmd.exe	91
PID 320 wrote to memory of 2032	320	cmd.exe	91
PID 320 wrote to memory of 2032	320	cmd.exe	91
PID 2848 wrote to memory of 3732	2848	cmd.exe	92
PID 2848 wrote to memory of 3732	2848	cmd.exe	92
PID 2848 wrote to memory of 3732	2848	cmd.exe	92

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
2032	attrib.exe
3732	attrib.exe

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ac7cc4ea0a1b744d77b4ad9dc50e2ce0.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ac7cc4ea0a1b744d77b4ad9dc50e2ce0.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1724
- 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:3528
- - 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:320
  - - 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:2032
- - 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:2848
  - - 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:3732

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/1724-15-0x0000000075390000-0x0000000075941000-memory.dmp

Filesize
5.7MB

Download
memory/1724-1-0x0000000075390000-0x0000000075941000-memory.dmp

Filesize
5.7MB

Download
memory/1724-2-0x0000000075390000-0x0000000075941000-memory.dmp

Filesize
5.7MB

Download
memory/1724-0-0x0000000075392000-0x0000000075393000-memory.dmp

Filesize
4KB

Download
memory/3528-21-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/3528-23-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/3528-12-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/3528-11-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/3528-16-0x0000000000830000-0x0000000000831000-memory.dmp

Filesize
4KB

Download
memory/3528-20-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/3528-19-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/3528-18-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/3528-17-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/3528-7-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/3528-22-0x0000000000830000-0x0000000000831000-memory.dmp

Filesize
4KB

Download
memory/3528-14-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/3528-24-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/3528-25-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/3528-26-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/3528-27-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/3528-28-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/3528-29-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/3528-30-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/3528-31-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/3528-32-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/3528-33-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/3528-34-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/3528-35-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads