darkcomet | aea28dc9008d1cb019826bcda9ed2397d3c8a345d9c78d4ab104ff6263326df3

General

Target

JaffaCakes118_6e9e68a42adc84e29d47c5f9555ce060.exe
Size

821KB
MD5

6e9e68a42adc84e29d47c5f9555ce060
SHA1

a576dc8081fd3780f237b909b38278e134f3c030
SHA256

aea28dc9008d1cb019826bcda9ed2397d3c8a345d9c78d4ab104ff6263326df3
SHA512

d79c1fae29bf4d18d2c5d542a0d0b0a6c4b5a59dae0f017c0ae8c8aeaae97642c3b51069fea7582208372f0c8a0fe26ed01d8fe042140205664fae6d5ad0cc9d
SSDEEP

24576:F3nbWmJVJFwSddIXvfhqbiaxvRxq9tNY:BamdZdcBYw

Score

10^/10

darkcomet 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 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\\explorer.exe"	JaffaCakes118_6e9e68a42adc84e29d47c5f9555ce060.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-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Windows\CurrentVersion\Run\YolundaMT2 = "C:\\Windows\\system32\\explorer.exe"	JaffaCakes118_6e9e68a42adc84e29d47c5f9555ce060.exe

Drops file in System32 directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\explorer.exe	JaffaCakes118_6e9e68a42adc84e29d47c5f9555ce060.exe
File opened for modification	C:\Windows\SysWOW64\	JaffaCakes118_6e9e68a42adc84e29d47c5f9555ce060.exe
File created	C:\Windows\SysWOW64\explorer.exe	JaffaCakes118_6e9e68a42adc84e29d47c5f9555ce060.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2712	628	WerFault.exe	30

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	JaffaCakes118_6e9e68a42adc84e29d47c5f9555ce060.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of AdjustPrivilegeToken 23 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	628	JaffaCakes118_6e9e68a42adc84e29d47c5f9555ce060.exe
Token: SeSecurityPrivilege	628	JaffaCakes118_6e9e68a42adc84e29d47c5f9555ce060.exe
Token: SeTakeOwnershipPrivilege	628	JaffaCakes118_6e9e68a42adc84e29d47c5f9555ce060.exe
Token: SeLoadDriverPrivilege	628	JaffaCakes118_6e9e68a42adc84e29d47c5f9555ce060.exe
Token: SeSystemProfilePrivilege	628	JaffaCakes118_6e9e68a42adc84e29d47c5f9555ce060.exe
Token: SeSystemtimePrivilege	628	JaffaCakes118_6e9e68a42adc84e29d47c5f9555ce060.exe
Token: SeProfSingleProcessPrivilege	628	JaffaCakes118_6e9e68a42adc84e29d47c5f9555ce060.exe
Token: SeIncBasePriorityPrivilege	628	JaffaCakes118_6e9e68a42adc84e29d47c5f9555ce060.exe
Token: SeCreatePagefilePrivilege	628	JaffaCakes118_6e9e68a42adc84e29d47c5f9555ce060.exe
Token: SeBackupPrivilege	628	JaffaCakes118_6e9e68a42adc84e29d47c5f9555ce060.exe
Token: SeRestorePrivilege	628	JaffaCakes118_6e9e68a42adc84e29d47c5f9555ce060.exe
Token: SeShutdownPrivilege	628	JaffaCakes118_6e9e68a42adc84e29d47c5f9555ce060.exe
Token: SeDebugPrivilege	628	JaffaCakes118_6e9e68a42adc84e29d47c5f9555ce060.exe
Token: SeSystemEnvironmentPrivilege	628	JaffaCakes118_6e9e68a42adc84e29d47c5f9555ce060.exe
Token: SeChangeNotifyPrivilege	628	JaffaCakes118_6e9e68a42adc84e29d47c5f9555ce060.exe
Token: SeRemoteShutdownPrivilege	628	JaffaCakes118_6e9e68a42adc84e29d47c5f9555ce060.exe
Token: SeUndockPrivilege	628	JaffaCakes118_6e9e68a42adc84e29d47c5f9555ce060.exe
Token: SeManageVolumePrivilege	628	JaffaCakes118_6e9e68a42adc84e29d47c5f9555ce060.exe
Token: SeImpersonatePrivilege	628	JaffaCakes118_6e9e68a42adc84e29d47c5f9555ce060.exe
Token: SeCreateGlobalPrivilege	628	JaffaCakes118_6e9e68a42adc84e29d47c5f9555ce060.exe
Token: 33	628	JaffaCakes118_6e9e68a42adc84e29d47c5f9555ce060.exe
Token: 34	628	JaffaCakes118_6e9e68a42adc84e29d47c5f9555ce060.exe
Token: 35	628	JaffaCakes118_6e9e68a42adc84e29d47c5f9555ce060.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 628 wrote to memory of 2160	628	JaffaCakes118_6e9e68a42adc84e29d47c5f9555ce060.exe	31
PID 628 wrote to memory of 2160	628	JaffaCakes118_6e9e68a42adc84e29d47c5f9555ce060.exe	31
PID 628 wrote to memory of 2160	628	JaffaCakes118_6e9e68a42adc84e29d47c5f9555ce060.exe	31
PID 628 wrote to memory of 2160	628	JaffaCakes118_6e9e68a42adc84e29d47c5f9555ce060.exe	31
PID 628 wrote to memory of 2952	628	JaffaCakes118_6e9e68a42adc84e29d47c5f9555ce060.exe	32
PID 628 wrote to memory of 2952	628	JaffaCakes118_6e9e68a42adc84e29d47c5f9555ce060.exe	32
PID 628 wrote to memory of 2952	628	JaffaCakes118_6e9e68a42adc84e29d47c5f9555ce060.exe	32
PID 628 wrote to memory of 2952	628	JaffaCakes118_6e9e68a42adc84e29d47c5f9555ce060.exe	32
PID 628 wrote to memory of 2712	628	JaffaCakes118_6e9e68a42adc84e29d47c5f9555ce060.exe	33
PID 628 wrote to memory of 2712	628	JaffaCakes118_6e9e68a42adc84e29d47c5f9555ce060.exe	33
PID 628 wrote to memory of 2712	628	JaffaCakes118_6e9e68a42adc84e29d47c5f9555ce060.exe	33
PID 628 wrote to memory of 2712	628	JaffaCakes118_6e9e68a42adc84e29d47c5f9555ce060.exe	33

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6e9e68a42adc84e29d47c5f9555ce060.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6e9e68a42adc84e29d47c5f9555ce060.exe"
1⤵
- Modifies WinLogon for persistence
- Adds Run key to start application
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:628
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmpcmd.bat" "
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2160
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmpcmd.bat" "
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2952
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 628 -s 624
  2⤵
  - Program crash
  PID:2712

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

Modify Registry

2

T1112

Credential Access

Discovery

System Information Discovery

1

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\tmpcmd.bat

Filesize
101B

MD5
204043ce28fd9d063dad1ffd3d3d8401

SHA1
93089366c9a5ce262c075c01312460357c62d974

SHA256
26d671c318128dbfb2df786c0840bdc06b6cbcf34a9a7fb1b34cff170740c9e6

SHA512
0975bdb2da75eca0ee7e6cb52f7aa62b468dd51f44fa5eb3468cb77bcbdd0b004e168c035d1b7794bae84e1dd9773df5bd421de1585678b16a94f6aab371b592

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpcmd.bat

Filesize
50B

MD5
b774ae3fb1da087e1f83b4f7b2060e5a

SHA1
97eb9be49ac3af9c851c9e1e84e32bfd53e325a8

SHA256
adaf4a84b41e410b02e261cfd0fe7739d98647eab73c3badd32ac6e39f26351b

SHA512
f75d0f95f7306d26a12b414bfe37b97fbd37546cb3c6e403def7077329ddffb4b45d5c5f0ba0e7bb6d72851d2d691b0a85267beead42f7cbf2e8c3d45a3b4701

Download Submit
memory/628-0-0x00000000003F0000-0x00000000003F1000-memory.dmp

Filesize
4KB

Download
memory/628-19-0x0000000000400000-0x00000000004DB000-memory.dmp

Filesize
876KB

Download
memory/628-20-0x0000000000400000-0x00000000004DB000-memory.dmp

Filesize
876KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads