darkcomet | b8992d924a41e8aef39cd6539b73659fef41e754f5f73ca726e929c448234307

General

Target

JaffaCakes118_83ec9c77993b67dde996c5867935d9d1.exe
Size

1.0MB
MD5

83ec9c77993b67dde996c5867935d9d1
SHA1

b428a71e6c0b708acfe94dc179718a62065595fb
SHA256

b8992d924a41e8aef39cd6539b73659fef41e754f5f73ca726e929c448234307
SHA512

92130e76f93ecb0a83db3e53927915326ac2b377fc705b1a2ee28d65b49937c61941c768d2b952bebea5ca677297ecb1201b81b861e72d1087378bbb0feeeec7
SSDEEP

24576:0f5EgIEiiF8CUb/pE3qamPbZkfApYRKhY1YlC:0fZIEH8nzpuLfgcWG9

Score

10^/10

darkcomet normal discovery persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

normal

C2

174.127.99.161:555

Mutex

DC_MUTEX-MHB4RAN

Attributes

gencode
nAKLCxUW8k9Q
install
false
offline_keylogger
true
persistence
false

rc4.plain

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

pid	Process
2512	MQXcyireo.exe

Loads dropped DLL 2 IoCs

pid	Process
2396	JaffaCakes118_83ec9c77993b67dde996c5867935d9d1.exe
2396	JaffaCakes118_83ec9c77993b67dde996c5867935d9d1.exe

Uses the VBS compiler for execution 1 TTPs

Command and Scripting Interpreter
T1059

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\Startname = "C:\\Users\\Admin\\AppData\\Roaming\\not binded crypted.exe"	MQXcyireo.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2396 set thread context of 2548	2396	JaffaCakes118_83ec9c77993b67dde996c5867935d9d1.exe	30

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	JaffaCakes118_83ec9c77993b67dde996c5867935d9d1.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vbc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MQXcyireo.exe

Suspicious use of AdjustPrivilegeToken 24 IoCs

description	pid	Process
Token: SeDebugPrivilege	2396	JaffaCakes118_83ec9c77993b67dde996c5867935d9d1.exe
Token: SeIncreaseQuotaPrivilege	2548	vbc.exe
Token: SeSecurityPrivilege	2548	vbc.exe
Token: SeTakeOwnershipPrivilege	2548	vbc.exe
Token: SeLoadDriverPrivilege	2548	vbc.exe
Token: SeSystemProfilePrivilege	2548	vbc.exe
Token: SeSystemtimePrivilege	2548	vbc.exe
Token: SeProfSingleProcessPrivilege	2548	vbc.exe
Token: SeIncBasePriorityPrivilege	2548	vbc.exe
Token: SeCreatePagefilePrivilege	2548	vbc.exe
Token: SeBackupPrivilege	2548	vbc.exe
Token: SeRestorePrivilege	2548	vbc.exe
Token: SeShutdownPrivilege	2548	vbc.exe
Token: SeDebugPrivilege	2548	vbc.exe
Token: SeSystemEnvironmentPrivilege	2548	vbc.exe
Token: SeChangeNotifyPrivilege	2548	vbc.exe
Token: SeRemoteShutdownPrivilege	2548	vbc.exe
Token: SeUndockPrivilege	2548	vbc.exe
Token: SeManageVolumePrivilege	2548	vbc.exe
Token: SeImpersonatePrivilege	2548	vbc.exe
Token: SeCreateGlobalPrivilege	2548	vbc.exe
Token: 33	2548	vbc.exe
Token: 34	2548	vbc.exe
Token: 35	2548	vbc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2548	vbc.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 2396 wrote to memory of 2548	2396	JaffaCakes118_83ec9c77993b67dde996c5867935d9d1.exe	30
PID 2396 wrote to memory of 2548	2396	JaffaCakes118_83ec9c77993b67dde996c5867935d9d1.exe	30
PID 2396 wrote to memory of 2548	2396	JaffaCakes118_83ec9c77993b67dde996c5867935d9d1.exe	30
PID 2396 wrote to memory of 2548	2396	JaffaCakes118_83ec9c77993b67dde996c5867935d9d1.exe	30
PID 2396 wrote to memory of 2548	2396	JaffaCakes118_83ec9c77993b67dde996c5867935d9d1.exe	30
PID 2396 wrote to memory of 2548	2396	JaffaCakes118_83ec9c77993b67dde996c5867935d9d1.exe	30
PID 2396 wrote to memory of 2548	2396	JaffaCakes118_83ec9c77993b67dde996c5867935d9d1.exe	30
PID 2396 wrote to memory of 2548	2396	JaffaCakes118_83ec9c77993b67dde996c5867935d9d1.exe	30
PID 2396 wrote to memory of 2548	2396	JaffaCakes118_83ec9c77993b67dde996c5867935d9d1.exe	30
PID 2396 wrote to memory of 2548	2396	JaffaCakes118_83ec9c77993b67dde996c5867935d9d1.exe	30
PID 2396 wrote to memory of 2548	2396	JaffaCakes118_83ec9c77993b67dde996c5867935d9d1.exe	30
PID 2396 wrote to memory of 2548	2396	JaffaCakes118_83ec9c77993b67dde996c5867935d9d1.exe	30
PID 2396 wrote to memory of 2548	2396	JaffaCakes118_83ec9c77993b67dde996c5867935d9d1.exe	30
PID 2396 wrote to memory of 2548	2396	JaffaCakes118_83ec9c77993b67dde996c5867935d9d1.exe	30
PID 2396 wrote to memory of 2548	2396	JaffaCakes118_83ec9c77993b67dde996c5867935d9d1.exe	30
PID 2396 wrote to memory of 2512	2396	JaffaCakes118_83ec9c77993b67dde996c5867935d9d1.exe	31
PID 2396 wrote to memory of 2512	2396	JaffaCakes118_83ec9c77993b67dde996c5867935d9d1.exe	31
PID 2396 wrote to memory of 2512	2396	JaffaCakes118_83ec9c77993b67dde996c5867935d9d1.exe	31
PID 2396 wrote to memory of 2512	2396	JaffaCakes118_83ec9c77993b67dde996c5867935d9d1.exe	31

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_83ec9c77993b67dde996c5867935d9d1.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_83ec9c77993b67dde996c5867935d9d1.exe"
1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2396
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
  C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:2548
- C:\Users\Admin\AppData\Roaming\MQXcyireo.exe
  "C:\Users\Admin\AppData\Roaming\MQXcyireo.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  PID:2512

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

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

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Downloads

\Users\Admin\AppData\Roaming\MQXcyireo.exe

Filesize
4KB

MD5
31d1c5f4bc83ad152be0062b9bdbbbed

SHA1
69cba27d1d622ce655638666e6527b9ae0e618a4

SHA256
fd02a57aad813bb6936321f973c7177ebc4f233854570ec1b9ff0eb1e1bbb36a

SHA512
6f12834374c887b185c912780b3e2c481e626de67f96afa3ccf1b6a74213eca2f0fa8bebb439f85a01290e28ac8f2c5b269833868f77959b47cdb33efe1b74bc

Download Submit
memory/2396-1-0x0000000074FC0000-0x000000007556B000-memory.dmp

Filesize
5.7MB

Download
memory/2396-2-0x0000000074FC0000-0x000000007556B000-memory.dmp

Filesize
5.7MB

Download
memory/2396-0-0x0000000074FC1000-0x0000000074FC2000-memory.dmp

Filesize
4KB

Download
memory/2396-19-0x0000000074FC0000-0x000000007556B000-memory.dmp

Filesize
5.7MB

Download
memory/2512-20-0x0000000074FC0000-0x000000007556B000-memory.dmp

Filesize
5.7MB

Download
memory/2512-18-0x0000000074FC1000-0x0000000074FC2000-memory.dmp

Filesize
4KB

Download
memory/2548-4-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2548-8-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2548-5-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2548-17-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2548-22-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2548-21-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2548-23-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2548-26-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads