darkcomet | 04c1494cf3a15ada715f4867dc12788eb61b828d8fadd3d9d8b1e81d461a5b2d

General

Target

76fea28420b8f95ebd8f92d49ea23b34_JaffaCakes118.exe
Size

236KB
MD5

76fea28420b8f95ebd8f92d49ea23b34
SHA1

8e36074e63a4cab1d75618463a1c63ffcd8581cb
SHA256

04c1494cf3a15ada715f4867dc12788eb61b828d8fadd3d9d8b1e81d461a5b2d
SHA512

33d344a659b9607d524ac0dba7e9a4239334d08840d4ec71e34c77d4248bf88bc91ee9c27cb26d319b00fb99b0e5e10e78e40481559b9f0581bcb97b9c281191
SSDEEP

6144:dMMWJH007FoGoyy4LozdtSMxuzhXv67fRCwsp9WONUff6:sJH0NGoyz4uzpifRCwGWON

Score

10^/10

darkcomet sheepception discovery evasion persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

sheepception

C2

thematrixx.zapto.org:1333

sheepception.zapto.org:1333

Mutex

DC_MUTEX-F54S21D

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
fXfsZcmQgzoa
install
true
offline_keylogger
true
persistence
true
reg_key
MicroUpdate

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

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\Users\\Admin\\AppData\\Local\\Microsoft\\Windows\\INetCookies\\MSDCSC\\msdcsc.exe"	76fea28420b8f95ebd8f92d49ea23b34_JaffaCakes118.exe

Sets file to hidden 1 TTPs 1 IoCs

Modifies file attributes to stop it showing in Explorer etc.

evasion

Hidden Files and Directories

T1564.001

pid	Process
4244	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-1-5-21-384068567-2943195810-3631207890-1000\Control Panel\International\Geo\Nation	76fea28420b8f95ebd8f92d49ea23b34_JaffaCakes118.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-1-5-21-384068567-2943195810-3631207890-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\AppData\\Local\\Microsoft\\Windows\\INetCookies\\MSDCSC\\msdcsc.exe"	76fea28420b8f95ebd8f92d49ea23b34_JaffaCakes118.exe

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 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	76fea28420b8f95ebd8f92d49ea23b34_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	attrib.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	76fea28420b8f95ebd8f92d49ea23b34_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 24 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	4712	76fea28420b8f95ebd8f92d49ea23b34_JaffaCakes118.exe
Token: SeSecurityPrivilege	4712	76fea28420b8f95ebd8f92d49ea23b34_JaffaCakes118.exe
Token: SeTakeOwnershipPrivilege	4712	76fea28420b8f95ebd8f92d49ea23b34_JaffaCakes118.exe
Token: SeLoadDriverPrivilege	4712	76fea28420b8f95ebd8f92d49ea23b34_JaffaCakes118.exe
Token: SeSystemProfilePrivilege	4712	76fea28420b8f95ebd8f92d49ea23b34_JaffaCakes118.exe
Token: SeSystemtimePrivilege	4712	76fea28420b8f95ebd8f92d49ea23b34_JaffaCakes118.exe
Token: SeProfSingleProcessPrivilege	4712	76fea28420b8f95ebd8f92d49ea23b34_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	4712	76fea28420b8f95ebd8f92d49ea23b34_JaffaCakes118.exe
Token: SeCreatePagefilePrivilege	4712	76fea28420b8f95ebd8f92d49ea23b34_JaffaCakes118.exe
Token: SeBackupPrivilege	4712	76fea28420b8f95ebd8f92d49ea23b34_JaffaCakes118.exe
Token: SeRestorePrivilege	4712	76fea28420b8f95ebd8f92d49ea23b34_JaffaCakes118.exe
Token: SeShutdownPrivilege	4712	76fea28420b8f95ebd8f92d49ea23b34_JaffaCakes118.exe
Token: SeDebugPrivilege	4712	76fea28420b8f95ebd8f92d49ea23b34_JaffaCakes118.exe
Token: SeSystemEnvironmentPrivilege	4712	76fea28420b8f95ebd8f92d49ea23b34_JaffaCakes118.exe
Token: SeChangeNotifyPrivilege	4712	76fea28420b8f95ebd8f92d49ea23b34_JaffaCakes118.exe
Token: SeRemoteShutdownPrivilege	4712	76fea28420b8f95ebd8f92d49ea23b34_JaffaCakes118.exe
Token: SeUndockPrivilege	4712	76fea28420b8f95ebd8f92d49ea23b34_JaffaCakes118.exe
Token: SeManageVolumePrivilege	4712	76fea28420b8f95ebd8f92d49ea23b34_JaffaCakes118.exe
Token: SeImpersonatePrivilege	4712	76fea28420b8f95ebd8f92d49ea23b34_JaffaCakes118.exe
Token: SeCreateGlobalPrivilege	4712	76fea28420b8f95ebd8f92d49ea23b34_JaffaCakes118.exe
Token: 33	4712	76fea28420b8f95ebd8f92d49ea23b34_JaffaCakes118.exe
Token: 34	4712	76fea28420b8f95ebd8f92d49ea23b34_JaffaCakes118.exe
Token: 35	4712	76fea28420b8f95ebd8f92d49ea23b34_JaffaCakes118.exe
Token: 36	4712	76fea28420b8f95ebd8f92d49ea23b34_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4712 wrote to memory of 1124	4712	76fea28420b8f95ebd8f92d49ea23b34_JaffaCakes118.exe	86
PID 4712 wrote to memory of 1124	4712	76fea28420b8f95ebd8f92d49ea23b34_JaffaCakes118.exe	86
PID 4712 wrote to memory of 1124	4712	76fea28420b8f95ebd8f92d49ea23b34_JaffaCakes118.exe	86
PID 1124 wrote to memory of 4244	1124	cmd.exe	88
PID 1124 wrote to memory of 4244	1124	cmd.exe	88
PID 1124 wrote to memory of 4244	1124	cmd.exe	88

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
4244	attrib.exe

C:\Users\Admin\AppData\Local\Temp\76fea28420b8f95ebd8f92d49ea23b34_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\76fea28420b8f95ebd8f92d49ea23b34_JaffaCakes118.exe"
1⤵
- Modifies WinLogon for persistence
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4712
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\76fea28420b8f95ebd8f92d49ea23b34_JaffaCakes118.exe" +s +h
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1124
- - C:\Windows\SysWOW64\attrib.exe
    attrib "C:\Users\Admin\AppData\Local\Temp\76fea28420b8f95ebd8f92d49ea23b34_JaffaCakes118.exe" +s +h
    3⤵
    - Sets file to hidden
    - System Location Discovery: System Language Discovery
    - Views/modifies file attributes
    PID:4244

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

C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCookies\MSDCSC\msdcsc.exe

Filesize
236KB

MD5
76fea28420b8f95ebd8f92d49ea23b34

SHA1
8e36074e63a4cab1d75618463a1c63ffcd8581cb

SHA256
04c1494cf3a15ada715f4867dc12788eb61b828d8fadd3d9d8b1e81d461a5b2d

SHA512
33d344a659b9607d524ac0dba7e9a4239334d08840d4ec71e34c77d4248bf88bc91ee9c27cb26d319b00fb99b0e5e10e78e40481559b9f0581bcb97b9c281191

Download Submit
memory/4712-0-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/4712-1-0x0000000002280000-0x0000000002281000-memory.dmp

Filesize
4KB

Download
memory/4712-52-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads