darkcomet | d3edc343f071a47bc8a914b0bf509fbff7f0db13090a22adb831fdb294ace0a2

General

Target

940b21191a812cb31f7676b6a8e33a49_JaffaCakes118.exe
Size

1.4MB
MD5

940b21191a812cb31f7676b6a8e33a49
SHA1

6e349291628eff88c133a872adfa8ec7cd0ef39d
SHA256

d3edc343f071a47bc8a914b0bf509fbff7f0db13090a22adb831fdb294ace0a2
SHA512

a035c8b4c7a02ff08a13097d6b71c5d0657413ccf99ad7a4645d907404dd63cba4e7b64c81f1bf7962d4135b8e9dc0928a764f11cc3980434df4ada2bf73802e
SSDEEP

24576:Qo8Wgv5HmVY5zSlQDGcjPnwl9mP4ZtpBaodNM+GbiXiyRBvzt92QQpyy6XBkUAk:QSsGVcWInwl9mAHpBh30iXiuBvzt92OV

Score

10^/10

darkcomet mc discovery persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

mc

C2

cookie.no-ip.biz:5555

Mutex

DCMIN_MUTEX-XHXZD7E

Attributes

gencode
D8FQkNMGT4Ke
install
false
offline_keylogger
true
persistence
false

Signatures

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

Executes dropped EXE 1 IoCs

Processes:

csrss.exe

pid	Process
1944	csrss.exe

Loads dropped DLL 1 IoCs

Processes:

940b21191a812cb31f7676b6a8e33a49_JaffaCakes118.exe

pid	Process
1032	940b21191a812cb31f7676b6a8e33a49_JaffaCakes118.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

940b21191a812cb31f7676b6a8e33a49_JaffaCakes118.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "C:\\Users\\Admin\\AppData\\Local\\Temp\\csrss.exe"	940b21191a812cb31f7676b6a8e33a49_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

940b21191a812cb31f7676b6a8e33a49_JaffaCakes118.exe

description	pid	Process	procid_target
PID 1032 set thread context of 1944	1032	940b21191a812cb31f7676b6a8e33a49_JaffaCakes118.exe	28

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 2 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

Processes:

940b21191a812cb31f7676b6a8e33a49_JaffaCakes118.execsrss.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	940b21191a812cb31f7676b6a8e33a49_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csrss.exe

Suspicious use of AdjustPrivilegeToken 24 IoCs

Processes:

940b21191a812cb31f7676b6a8e33a49_JaffaCakes118.execsrss.exe

description	pid	Process
Token: SeDebugPrivilege	1032	940b21191a812cb31f7676b6a8e33a49_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	1944	csrss.exe
Token: SeSecurityPrivilege	1944	csrss.exe
Token: SeTakeOwnershipPrivilege	1944	csrss.exe
Token: SeLoadDriverPrivilege	1944	csrss.exe
Token: SeSystemProfilePrivilege	1944	csrss.exe
Token: SeSystemtimePrivilege	1944	csrss.exe
Token: SeProfSingleProcessPrivilege	1944	csrss.exe
Token: SeIncBasePriorityPrivilege	1944	csrss.exe
Token: SeCreatePagefilePrivilege	1944	csrss.exe
Token: SeBackupPrivilege	1944	csrss.exe
Token: SeRestorePrivilege	1944	csrss.exe
Token: SeShutdownPrivilege	1944	csrss.exe
Token: SeDebugPrivilege	1944	csrss.exe
Token: SeSystemEnvironmentPrivilege	1944	csrss.exe
Token: SeChangeNotifyPrivilege	1944	csrss.exe
Token: SeRemoteShutdownPrivilege	1944	csrss.exe
Token: SeUndockPrivilege	1944	csrss.exe
Token: SeManageVolumePrivilege	1944	csrss.exe
Token: SeImpersonatePrivilege	1944	csrss.exe
Token: SeCreateGlobalPrivilege	1944	csrss.exe
Token: 33	1944	csrss.exe
Token: 34	1944	csrss.exe
Token: 35	1944	csrss.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

csrss.exe

pid	Process
1944	csrss.exe

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

940b21191a812cb31f7676b6a8e33a49_JaffaCakes118.exe

description	pid	Process	procid_target
PID 1032 wrote to memory of 1944	1032	940b21191a812cb31f7676b6a8e33a49_JaffaCakes118.exe	28
PID 1032 wrote to memory of 1944	1032	940b21191a812cb31f7676b6a8e33a49_JaffaCakes118.exe	28
PID 1032 wrote to memory of 1944	1032	940b21191a812cb31f7676b6a8e33a49_JaffaCakes118.exe	28
PID 1032 wrote to memory of 1944	1032	940b21191a812cb31f7676b6a8e33a49_JaffaCakes118.exe	28
PID 1032 wrote to memory of 1944	1032	940b21191a812cb31f7676b6a8e33a49_JaffaCakes118.exe	28
PID 1032 wrote to memory of 1944	1032	940b21191a812cb31f7676b6a8e33a49_JaffaCakes118.exe	28
PID 1032 wrote to memory of 1944	1032	940b21191a812cb31f7676b6a8e33a49_JaffaCakes118.exe	28
PID 1032 wrote to memory of 1944	1032	940b21191a812cb31f7676b6a8e33a49_JaffaCakes118.exe	28
PID 1032 wrote to memory of 1944	1032	940b21191a812cb31f7676b6a8e33a49_JaffaCakes118.exe	28
PID 1032 wrote to memory of 1944	1032	940b21191a812cb31f7676b6a8e33a49_JaffaCakes118.exe	28
PID 1032 wrote to memory of 1944	1032	940b21191a812cb31f7676b6a8e33a49_JaffaCakes118.exe	28
PID 1032 wrote to memory of 1944	1032	940b21191a812cb31f7676b6a8e33a49_JaffaCakes118.exe	28
PID 1032 wrote to memory of 1944	1032	940b21191a812cb31f7676b6a8e33a49_JaffaCakes118.exe	28

C:\Users\Admin\AppData\Local\Temp\940b21191a812cb31f7676b6a8e33a49_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\940b21191a812cb31f7676b6a8e33a49_JaffaCakes118.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1032
- C:\Users\Admin\AppData\Local\Temp\csrss.exe
  C:\Users\Admin\AppData\Local\Temp\csrss.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:1944

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

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

Replay Monitor

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Downloads

\Users\Admin\AppData\Local\Temp\csrss.exe

Filesize
31KB

MD5
ed797d8dc2c92401985d162e42ffa450

SHA1
0f02fc517c7facc4baefde4fe9467fb6488ebabe

SHA256
b746362010a101cb5931bc066f0f4d3fc740c02a68c1f37fc3c8e6c87fd7cb1e

SHA512
e831a6ff987f3ef29982da16afad06938b68eddd43c234ba88d1c96a1b5547f2284baf35cbb3a5bfd75e7f0445d14daa014e0ba00b4db72c67f83f0a314c80c2

Download Submit
memory/1032-0-0x0000000074BF1000-0x0000000074BF2000-memory.dmp

Filesize
4KB

Download
memory/1032-1-0x0000000074BF0000-0x000000007519B000-memory.dmp

Filesize
5.7MB

Download
memory/1032-2-0x0000000074BF0000-0x000000007519B000-memory.dmp

Filesize
5.7MB

Download
memory/1032-33-0x0000000074BF0000-0x000000007519B000-memory.dmp

Filesize
5.7MB

Download
memory/1944-13-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/1944-29-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/1944-9-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/1944-17-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/1944-16-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/1944-21-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/1944-11-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/1944-32-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/1944-34-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/1944-20-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/1944-27-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/1944-23-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/1944-25-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1944-35-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/1944-36-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/1944-37-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/1944-40-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads