darkcomet | 12682e378ed4d01eb7abb0b0f0e38432e5884cb56b8bbd155847a0fd37905ff8

General

Target

JaffaCakes118_f89be3019aa47cf5926062d8fa4227fb.exe
Size

1.1MB
MD5

f89be3019aa47cf5926062d8fa4227fb
SHA1

1db9004df6556dff405aabed9365bbbe5f052dcc
SHA256

12682e378ed4d01eb7abb0b0f0e38432e5884cb56b8bbd155847a0fd37905ff8
SHA512

5b4fc70e8fe21db5eb5b8a2585bde02e3683b89e4c5f4e482f970ca6c5f2f48865787d47eaa411713923ee32105d4d8851af9e01e37b5d5405e5ce8b8dd4e2f8
SSDEEP

24576:4fHK4ne0H220E81P/RQmKEhQSt+TrLQse4xoQQZnt1:GXl3eb1g1CQQ

Score

10^/10

darkcomet discovery persistence rat trojan

Malware Config

Extracted

Family

darkcomet

C2

92.73.139.121:3460

Attributes

gencode
install
false
offline_keylogger
false
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
1996	vbc.exe

Loads dropped DLL 3 IoCs

pid	Process
1660	JaffaCakes118_f89be3019aa47cf5926062d8fa4227fb.exe
1996	vbc.exe
1996	vbc.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-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Windows\CurrentVersion\Run\WinUpdtr = "C:\\Users\\Admin\\AppData\\Roaming\\WinUpdtr\\JaffaCakes118_f89be3019aa47cf5926062d8fa4227fb.exe"	JaffaCakes118_f89be3019aa47cf5926062d8fa4227fb.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1660 set thread context of 1996	1660	JaffaCakes118_f89be3019aa47cf5926062d8fa4227fb.exe	31

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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vbc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_f89be3019aa47cf5926062d8fa4227fb.exe

Suspicious use of AdjustPrivilegeToken 23 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	1996	vbc.exe
Token: SeSecurityPrivilege	1996	vbc.exe
Token: SeTakeOwnershipPrivilege	1996	vbc.exe
Token: SeLoadDriverPrivilege	1996	vbc.exe
Token: SeSystemProfilePrivilege	1996	vbc.exe
Token: SeSystemtimePrivilege	1996	vbc.exe
Token: SeProfSingleProcessPrivilege	1996	vbc.exe
Token: SeIncBasePriorityPrivilege	1996	vbc.exe
Token: SeCreatePagefilePrivilege	1996	vbc.exe
Token: SeBackupPrivilege	1996	vbc.exe
Token: SeRestorePrivilege	1996	vbc.exe
Token: SeShutdownPrivilege	1996	vbc.exe
Token: SeDebugPrivilege	1996	vbc.exe
Token: SeSystemEnvironmentPrivilege	1996	vbc.exe
Token: SeChangeNotifyPrivilege	1996	vbc.exe
Token: SeRemoteShutdownPrivilege	1996	vbc.exe
Token: SeUndockPrivilege	1996	vbc.exe
Token: SeManageVolumePrivilege	1996	vbc.exe
Token: SeImpersonatePrivilege	1996	vbc.exe
Token: SeCreateGlobalPrivilege	1996	vbc.exe
Token: 33	1996	vbc.exe
Token: 34	1996	vbc.exe
Token: 35	1996	vbc.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 1660 wrote to memory of 1996	1660	JaffaCakes118_f89be3019aa47cf5926062d8fa4227fb.exe	31
PID 1660 wrote to memory of 1996	1660	JaffaCakes118_f89be3019aa47cf5926062d8fa4227fb.exe	31
PID 1660 wrote to memory of 1996	1660	JaffaCakes118_f89be3019aa47cf5926062d8fa4227fb.exe	31
PID 1660 wrote to memory of 1996	1660	JaffaCakes118_f89be3019aa47cf5926062d8fa4227fb.exe	31
PID 1660 wrote to memory of 1996	1660	JaffaCakes118_f89be3019aa47cf5926062d8fa4227fb.exe	31
PID 1660 wrote to memory of 1996	1660	JaffaCakes118_f89be3019aa47cf5926062d8fa4227fb.exe	31
PID 1660 wrote to memory of 1996	1660	JaffaCakes118_f89be3019aa47cf5926062d8fa4227fb.exe	31
PID 1660 wrote to memory of 1996	1660	JaffaCakes118_f89be3019aa47cf5926062d8fa4227fb.exe	31
PID 1660 wrote to memory of 1996	1660	JaffaCakes118_f89be3019aa47cf5926062d8fa4227fb.exe	31
PID 1660 wrote to memory of 1996	1660	JaffaCakes118_f89be3019aa47cf5926062d8fa4227fb.exe	31
PID 1660 wrote to memory of 1996	1660	JaffaCakes118_f89be3019aa47cf5926062d8fa4227fb.exe	31
PID 1660 wrote to memory of 1996	1660	JaffaCakes118_f89be3019aa47cf5926062d8fa4227fb.exe	31
PID 1660 wrote to memory of 1996	1660	JaffaCakes118_f89be3019aa47cf5926062d8fa4227fb.exe	31
PID 1660 wrote to memory of 1996	1660	JaffaCakes118_f89be3019aa47cf5926062d8fa4227fb.exe	31
PID 1660 wrote to memory of 1996	1660	JaffaCakes118_f89be3019aa47cf5926062d8fa4227fb.exe	31
PID 1660 wrote to memory of 1996	1660	JaffaCakes118_f89be3019aa47cf5926062d8fa4227fb.exe	31

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f89be3019aa47cf5926062d8fa4227fb.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f89be3019aa47cf5926062d8fa4227fb.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:1660
- C:\Users\Admin\AppData\Local\Temp\vbc.exe
  C:\Users\Admin\AppData\Local\Temp\vbc.exe
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:1996

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 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\vbc.exe

Filesize
1.1MB

MD5
34aa912defa18c2c129f1e09d75c1d7e

SHA1
9c3046324657505a30ecd9b1fdb46c05bde7d470

SHA256
6df94b7fa33f1b87142adc39b3db0613fc520d9e7a5fd6a5301dd7f51f8d0386

SHA512
d1ea9368f5d7166180612fd763c87afb647d088498887961f5e7fb0a10f4a808bd5928e8a3666d70ff794093c51ecca8816f75dd47652fd4eb23dce7f9aa1f98

Download Submit
memory/1660-0-0x0000000074402000-0x0000000074404000-memory.dmp

Filesize
8KB

Download
memory/1996-17-0x0000000000400000-0x00000000004C7000-memory.dmp

Filesize
796KB

Download
memory/1996-8-0x0000000000400000-0x00000000004C7000-memory.dmp

Filesize
796KB

Download
memory/1996-25-0x0000000000400000-0x00000000004C7000-memory.dmp

Filesize
796KB

Download
memory/1996-23-0x0000000000400000-0x00000000004C7000-memory.dmp

Filesize
796KB

Download
memory/1996-21-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1996-19-0x0000000000400000-0x00000000004C7000-memory.dmp

Filesize
796KB

Download
memory/1996-12-0x0000000000400000-0x00000000004C7000-memory.dmp

Filesize
796KB

Download
memory/1996-15-0x0000000000400000-0x00000000004C7000-memory.dmp

Filesize
796KB

Download
memory/1996-13-0x0000000000400000-0x00000000004C7000-memory.dmp

Filesize
796KB

Download
memory/1996-9-0x0000000000400000-0x00000000004C7000-memory.dmp

Filesize
796KB

Download
memory/1996-31-0x0000000000400000-0x00000000004C7000-memory.dmp

Filesize
796KB

Download
memory/1996-32-0x0000000000400000-0x00000000004C7000-memory.dmp

Filesize
796KB

Download
memory/1996-34-0x0000000000400000-0x00000000004C7000-memory.dmp

Filesize
796KB

Download
memory/1996-33-0x0000000000400000-0x00000000004C7000-memory.dmp

Filesize
796KB

Download
memory/1996-26-0x0000000000400000-0x00000000004C7000-memory.dmp

Filesize
796KB

Download
memory/1996-7-0x0000000000400000-0x00000000004C7000-memory.dmp

Filesize
796KB

Download
memory/1996-35-0x0000000000400000-0x00000000004C7000-memory.dmp

Filesize
796KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads