darkcomet | 35ccc564a28e1c965db59923298c25509bc5ba1bddc4db6fa58328c154be860c

General

Target

495e63ba473422c4753fc8287ac2e5e9_JaffaCakes118.exe
Size

1.0MB
MD5

495e63ba473422c4753fc8287ac2e5e9
SHA1

d837994bd98e36d2cb2931e981f765ecac3a3325
SHA256

35ccc564a28e1c965db59923298c25509bc5ba1bddc4db6fa58328c154be860c
SHA512

3fb5fbfa29a8c6b8371780c3a03562983e0b16bf96729e0cd52f842a3ca30e0b1789b432e5ba1e351a58f27ed5eabaa31bddc7f122f1d187266260062ea08985
SSDEEP

12288:7kpdlbnphqb54nweIH9M2LgLep2Nn8okQgJZa10IYI1ls1Tl:1TDTM2d3FaqTIw

Score

10^/10

darkcomet guest16_min discovery persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16_min

C2

pqj.zapto.org:1500

Mutex

DCMIN_MUTEX-18JAEQL

Attributes

InstallPath
DCSCMIN\Windows Defender.exe
gencode
FWecV5oVYbJE
install
true
offline_keylogger
true
persistence
false
reg_key
DarkComet RAT

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\\Documents\\DCSCMIN\\Windows Defender.exe"	vbc.exe

Executes dropped EXE 2 IoCs

pid	Process
2592	hSwitch.exe
2608	Windows Defender.exe

Loads dropped DLL 2 IoCs

pid	Process
2668	495e63ba473422c4753fc8287ac2e5e9_JaffaCakes118.exe
2784	vbc.exe

Uses the VBS compiler for execution 1 TTPs

Command and Scripting Interpreter
T1059

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows\CurrentVersion\Run\Win Update = "C:\\Users\\Admin\\AppData\\Roaming\\Win Update.exe"	495e63ba473422c4753fc8287ac2e5e9_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows\CurrentVersion\Run\DarkComet RAT = "C:\\Users\\Admin\\Documents\\DCSCMIN\\Windows Defender.exe"	vbc.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2668 set thread context of 2784	2668	495e63ba473422c4753fc8287ac2e5e9_JaffaCakes118.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 4 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	495e63ba473422c4753fc8287ac2e5e9_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vbc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	hSwitch.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Windows Defender.exe

Suspicious use of AdjustPrivilegeToken 24 IoCs

description	pid	Process
Token: SeDebugPrivilege	2592	hSwitch.exe
Token: SeIncreaseQuotaPrivilege	2784	vbc.exe
Token: SeSecurityPrivilege	2784	vbc.exe
Token: SeTakeOwnershipPrivilege	2784	vbc.exe
Token: SeLoadDriverPrivilege	2784	vbc.exe
Token: SeSystemProfilePrivilege	2784	vbc.exe
Token: SeSystemtimePrivilege	2784	vbc.exe
Token: SeProfSingleProcessPrivilege	2784	vbc.exe
Token: SeIncBasePriorityPrivilege	2784	vbc.exe
Token: SeCreatePagefilePrivilege	2784	vbc.exe
Token: SeBackupPrivilege	2784	vbc.exe
Token: SeRestorePrivilege	2784	vbc.exe
Token: SeShutdownPrivilege	2784	vbc.exe
Token: SeDebugPrivilege	2784	vbc.exe
Token: SeSystemEnvironmentPrivilege	2784	vbc.exe
Token: SeChangeNotifyPrivilege	2784	vbc.exe
Token: SeRemoteShutdownPrivilege	2784	vbc.exe
Token: SeUndockPrivilege	2784	vbc.exe
Token: SeManageVolumePrivilege	2784	vbc.exe
Token: SeImpersonatePrivilege	2784	vbc.exe
Token: SeCreateGlobalPrivilege	2784	vbc.exe
Token: 33	2784	vbc.exe
Token: 34	2784	vbc.exe
Token: 35	2784	vbc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2592	hSwitch.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 2668 wrote to memory of 2784	2668	495e63ba473422c4753fc8287ac2e5e9_JaffaCakes118.exe	30
PID 2668 wrote to memory of 2784	2668	495e63ba473422c4753fc8287ac2e5e9_JaffaCakes118.exe	30
PID 2668 wrote to memory of 2784	2668	495e63ba473422c4753fc8287ac2e5e9_JaffaCakes118.exe	30
PID 2668 wrote to memory of 2784	2668	495e63ba473422c4753fc8287ac2e5e9_JaffaCakes118.exe	30
PID 2668 wrote to memory of 2784	2668	495e63ba473422c4753fc8287ac2e5e9_JaffaCakes118.exe	30
PID 2668 wrote to memory of 2784	2668	495e63ba473422c4753fc8287ac2e5e9_JaffaCakes118.exe	30
PID 2668 wrote to memory of 2784	2668	495e63ba473422c4753fc8287ac2e5e9_JaffaCakes118.exe	30
PID 2668 wrote to memory of 2784	2668	495e63ba473422c4753fc8287ac2e5e9_JaffaCakes118.exe	30
PID 2668 wrote to memory of 2784	2668	495e63ba473422c4753fc8287ac2e5e9_JaffaCakes118.exe	30
PID 2668 wrote to memory of 2784	2668	495e63ba473422c4753fc8287ac2e5e9_JaffaCakes118.exe	30
PID 2668 wrote to memory of 2784	2668	495e63ba473422c4753fc8287ac2e5e9_JaffaCakes118.exe	30
PID 2668 wrote to memory of 2784	2668	495e63ba473422c4753fc8287ac2e5e9_JaffaCakes118.exe	30
PID 2668 wrote to memory of 2784	2668	495e63ba473422c4753fc8287ac2e5e9_JaffaCakes118.exe	30
PID 2668 wrote to memory of 2592	2668	495e63ba473422c4753fc8287ac2e5e9_JaffaCakes118.exe	31
PID 2668 wrote to memory of 2592	2668	495e63ba473422c4753fc8287ac2e5e9_JaffaCakes118.exe	31
PID 2668 wrote to memory of 2592	2668	495e63ba473422c4753fc8287ac2e5e9_JaffaCakes118.exe	31
PID 2668 wrote to memory of 2592	2668	495e63ba473422c4753fc8287ac2e5e9_JaffaCakes118.exe	31
PID 2784 wrote to memory of 2608	2784	vbc.exe	32
PID 2784 wrote to memory of 2608	2784	vbc.exe	32
PID 2784 wrote to memory of 2608	2784	vbc.exe	32
PID 2784 wrote to memory of 2608	2784	vbc.exe	32

C:\Users\Admin\AppData\Local\Temp\495e63ba473422c4753fc8287ac2e5e9_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\495e63ba473422c4753fc8287ac2e5e9_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 WriteProcessMemory
PID:2668
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
  C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
  2⤵
  - Modifies WinLogon for persistence
  - Loads dropped DLL
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2784
- - C:\Users\Admin\Documents\DCSCMIN\Windows Defender.exe
    "C:\Users\Admin\Documents\DCSCMIN\Windows Defender.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:2608
- C:\Users\Admin\AppData\Local\Temp\hSwitch.exe
  "C:\Users\Admin\AppData\Local\Temp\hSwitch.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:2592

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\Documents\DCSCMIN\Windows Defender.exe

Filesize
1.1MB

MD5
34aa912defa18c2c129f1e09d75c1d7e

SHA1
9c3046324657505a30ecd9b1fdb46c05bde7d470

SHA256
6df94b7fa33f1b87142adc39b3db0613fc520d9e7a5fd6a5301dd7f51f8d0386

SHA512
d1ea9368f5d7166180612fd763c87afb647d088498887961f5e7fb0a10f4a808bd5928e8a3666d70ff794093c51ecca8816f75dd47652fd4eb23dce7f9aa1f98

Download Submit
\Users\Admin\AppData\Local\Temp\hSwitch.exe

Filesize
54KB

MD5
4d84415bd9670204106fb892cd93e4f1

SHA1
10198bfd6074c0e88d494645357c22f2ceecf582

SHA256
133e98db3c463de32d606fb6532100d569cea15c178b3d00e0c43bdfa8c9ba9f

SHA512
4525e32f13c8b06f8b979c15452b111972d5cc6baf2633e12d9691ceeb1d9bff5e7f664bed95c56352e32e732761b71b312c35eebbd18d39db4582ca2a27fb75

Download Submit
memory/2668-0-0x0000000074EB1000-0x0000000074EB2000-memory.dmp

Filesize
4KB

Download
memory/2668-1-0x0000000074EB0000-0x000000007545B000-memory.dmp

Filesize
5.7MB

Download
memory/2668-2-0x0000000074EB0000-0x000000007545B000-memory.dmp

Filesize
5.7MB

Download
memory/2668-32-0x0000000074EB0000-0x000000007545B000-memory.dmp

Filesize
5.7MB

Download
memory/2784-15-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2784-5-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2784-18-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2784-17-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2784-23-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2784-31-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2784-9-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2784-22-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2784-13-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2784-11-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2784-7-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2784-20-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2784-3-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2784-40-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads