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

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-1-5-21-814918696-1585701690-3140955116-1000\Control Panel\International\Geo\Nation	JaffaCakes118_83ec9c77993b67dde996c5867935d9d1.exe

Executes dropped EXE 1 IoCs

pid	Process
4332	MQXcyireo.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-1-5-21-814918696-1585701690-3140955116-1000\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 5400 set thread context of 4024	5400	JaffaCakes118_83ec9c77993b67dde996c5867935d9d1.exe	88

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 25 IoCs

description	pid	Process
Token: SeDebugPrivilege	5400	JaffaCakes118_83ec9c77993b67dde996c5867935d9d1.exe
Token: SeIncreaseQuotaPrivilege	4024	vbc.exe
Token: SeSecurityPrivilege	4024	vbc.exe
Token: SeTakeOwnershipPrivilege	4024	vbc.exe
Token: SeLoadDriverPrivilege	4024	vbc.exe
Token: SeSystemProfilePrivilege	4024	vbc.exe
Token: SeSystemtimePrivilege	4024	vbc.exe
Token: SeProfSingleProcessPrivilege	4024	vbc.exe
Token: SeIncBasePriorityPrivilege	4024	vbc.exe
Token: SeCreatePagefilePrivilege	4024	vbc.exe
Token: SeBackupPrivilege	4024	vbc.exe
Token: SeRestorePrivilege	4024	vbc.exe
Token: SeShutdownPrivilege	4024	vbc.exe
Token: SeDebugPrivilege	4024	vbc.exe
Token: SeSystemEnvironmentPrivilege	4024	vbc.exe
Token: SeChangeNotifyPrivilege	4024	vbc.exe
Token: SeRemoteShutdownPrivilege	4024	vbc.exe
Token: SeUndockPrivilege	4024	vbc.exe
Token: SeManageVolumePrivilege	4024	vbc.exe
Token: SeImpersonatePrivilege	4024	vbc.exe
Token: SeCreateGlobalPrivilege	4024	vbc.exe
Token: 33	4024	vbc.exe
Token: 34	4024	vbc.exe
Token: 35	4024	vbc.exe
Token: 36	4024	vbc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4024	vbc.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 5400 wrote to memory of 4024	5400	JaffaCakes118_83ec9c77993b67dde996c5867935d9d1.exe	88
PID 5400 wrote to memory of 4024	5400	JaffaCakes118_83ec9c77993b67dde996c5867935d9d1.exe	88
PID 5400 wrote to memory of 4024	5400	JaffaCakes118_83ec9c77993b67dde996c5867935d9d1.exe	88
PID 5400 wrote to memory of 4024	5400	JaffaCakes118_83ec9c77993b67dde996c5867935d9d1.exe	88
PID 5400 wrote to memory of 4024	5400	JaffaCakes118_83ec9c77993b67dde996c5867935d9d1.exe	88
PID 5400 wrote to memory of 4024	5400	JaffaCakes118_83ec9c77993b67dde996c5867935d9d1.exe	88
PID 5400 wrote to memory of 4024	5400	JaffaCakes118_83ec9c77993b67dde996c5867935d9d1.exe	88
PID 5400 wrote to memory of 4024	5400	JaffaCakes118_83ec9c77993b67dde996c5867935d9d1.exe	88
PID 5400 wrote to memory of 4024	5400	JaffaCakes118_83ec9c77993b67dde996c5867935d9d1.exe	88
PID 5400 wrote to memory of 4024	5400	JaffaCakes118_83ec9c77993b67dde996c5867935d9d1.exe	88
PID 5400 wrote to memory of 4024	5400	JaffaCakes118_83ec9c77993b67dde996c5867935d9d1.exe	88
PID 5400 wrote to memory of 4024	5400	JaffaCakes118_83ec9c77993b67dde996c5867935d9d1.exe	88
PID 5400 wrote to memory of 4024	5400	JaffaCakes118_83ec9c77993b67dde996c5867935d9d1.exe	88
PID 5400 wrote to memory of 4024	5400	JaffaCakes118_83ec9c77993b67dde996c5867935d9d1.exe	88
PID 5400 wrote to memory of 4332	5400	JaffaCakes118_83ec9c77993b67dde996c5867935d9d1.exe	89
PID 5400 wrote to memory of 4332	5400	JaffaCakes118_83ec9c77993b67dde996c5867935d9d1.exe	89
PID 5400 wrote to memory of 4332	5400	JaffaCakes118_83ec9c77993b67dde996c5867935d9d1.exe	89

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_83ec9c77993b67dde996c5867935d9d1.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_83ec9c77993b67dde996c5867935d9d1.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5400
- 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:4024
- 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:4332

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

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\Roaming\MQXcyireo.exe

Filesize
4KB

MD5
31d1c5f4bc83ad152be0062b9bdbbbed

SHA1
69cba27d1d622ce655638666e6527b9ae0e618a4

SHA256
fd02a57aad813bb6936321f973c7177ebc4f233854570ec1b9ff0eb1e1bbb36a

SHA512
6f12834374c887b185c912780b3e2c481e626de67f96afa3ccf1b6a74213eca2f0fa8bebb439f85a01290e28ac8f2c5b269833868f77959b47cdb33efe1b74bc

Download Submit
memory/4024-7-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/4024-28-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/4024-4-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/4024-37-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/4024-35-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/4024-8-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/4024-11-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/4024-10-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/4024-33-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/4024-9-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/4024-6-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/4024-31-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/4332-25-0x00000000754D0000-0x0000000075A81000-memory.dmp

Filesize
5.7MB

Download
memory/4332-27-0x00000000754D0000-0x0000000075A81000-memory.dmp

Filesize
5.7MB

Download
memory/4332-23-0x00000000754D2000-0x00000000754D3000-memory.dmp

Filesize
4KB

Download
memory/5400-24-0x00000000754D0000-0x0000000075A81000-memory.dmp

Filesize
5.7MB

Download
memory/5400-2-0x00000000754D0000-0x0000000075A81000-memory.dmp

Filesize
5.7MB

Download
memory/5400-0-0x00000000754D2000-0x00000000754D3000-memory.dmp

Filesize
4KB

Download
memory/5400-1-0x00000000754D0000-0x0000000075A81000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads