darkcomet | 614debebea269ee73ff158fb9e4e0cbe1d7d4a0e5d1cf3fc9a8f8546fb00bd07

General

Target

JaffaCakes118_1e114210b93cef08783b38c1622b030b.exe
Size

920KB
MD5

1e114210b93cef08783b38c1622b030b
SHA1

77b39bd584a2da176716d84f3059771845ecec68
SHA256

614debebea269ee73ff158fb9e4e0cbe1d7d4a0e5d1cf3fc9a8f8546fb00bd07
SHA512

345a3089786e58df7c998c329796a08e16a18d9cf0598c379d24e1f46538fe338af3c8d4350aa5062fedb224a559e321faa9b668f6963b6cfba2dec4e43e01d8
SSDEEP

24576:vqmmmmKwhie5gHgAqi315mN1B84FVT8p09:ArATmBZV

Score

10^/10

darkcomet guest16 discovery rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

sfacc51.zapto.org:783

Mutex

DC_MUTEX-280ADGN

Attributes

gencode
f5jNcjCFer-J
install
false
offline_keylogger
true
password
123
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 BIOS information in registry 2 TTPs 1 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate	winhost32.exe

Drops startup file 2 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\JaffaCakes118_1e114210b93cef08783b38c1622b030b.exe	JaffaCakes118_1e114210b93cef08783b38c1622b030b.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\JaffaCakes118_1e114210b93cef08783b38c1622b030b.exe	JaffaCakes118_1e114210b93cef08783b38c1622b030b.exe

Executes dropped EXE 1 IoCs

pid	Process
1624	winhost32.exe

Loads dropped DLL 4 IoCs

pid	Process
3080	JaffaCakes118_1e114210b93cef08783b38c1622b030b.exe
3080	JaffaCakes118_1e114210b93cef08783b38c1622b030b.exe
3080	JaffaCakes118_1e114210b93cef08783b38c1622b030b.exe
3080	JaffaCakes118_1e114210b93cef08783b38c1622b030b.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3080 set thread context of 1624	3080	JaffaCakes118_1e114210b93cef08783b38c1622b030b.exe	87

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	JaffaCakes118_1e114210b93cef08783b38c1622b030b.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winhost32.exe

Checks processor information in registry 2 TTPs 4 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	winhost32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	winhost32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	winhost32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier	winhost32.exe

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	winhost32.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3080	JaffaCakes118_1e114210b93cef08783b38c1622b030b.exe
3080	JaffaCakes118_1e114210b93cef08783b38c1622b030b.exe

Suspicious use of AdjustPrivilegeToken 25 IoCs

description	pid	Process
Token: SeDebugPrivilege	3080	JaffaCakes118_1e114210b93cef08783b38c1622b030b.exe
Token: SeIncreaseQuotaPrivilege	1624	winhost32.exe
Token: SeSecurityPrivilege	1624	winhost32.exe
Token: SeTakeOwnershipPrivilege	1624	winhost32.exe
Token: SeLoadDriverPrivilege	1624	winhost32.exe
Token: SeSystemProfilePrivilege	1624	winhost32.exe
Token: SeSystemtimePrivilege	1624	winhost32.exe
Token: SeProfSingleProcessPrivilege	1624	winhost32.exe
Token: SeIncBasePriorityPrivilege	1624	winhost32.exe
Token: SeCreatePagefilePrivilege	1624	winhost32.exe
Token: SeBackupPrivilege	1624	winhost32.exe
Token: SeRestorePrivilege	1624	winhost32.exe
Token: SeShutdownPrivilege	1624	winhost32.exe
Token: SeDebugPrivilege	1624	winhost32.exe
Token: SeSystemEnvironmentPrivilege	1624	winhost32.exe
Token: SeChangeNotifyPrivilege	1624	winhost32.exe
Token: SeRemoteShutdownPrivilege	1624	winhost32.exe
Token: SeUndockPrivilege	1624	winhost32.exe
Token: SeManageVolumePrivilege	1624	winhost32.exe
Token: SeImpersonatePrivilege	1624	winhost32.exe
Token: SeCreateGlobalPrivilege	1624	winhost32.exe
Token: 33	1624	winhost32.exe
Token: 34	1624	winhost32.exe
Token: 35	1624	winhost32.exe
Token: 36	1624	winhost32.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1624	winhost32.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 3080 wrote to memory of 1624	3080	JaffaCakes118_1e114210b93cef08783b38c1622b030b.exe	87
PID 3080 wrote to memory of 1624	3080	JaffaCakes118_1e114210b93cef08783b38c1622b030b.exe	87
PID 3080 wrote to memory of 1624	3080	JaffaCakes118_1e114210b93cef08783b38c1622b030b.exe	87
PID 3080 wrote to memory of 1624	3080	JaffaCakes118_1e114210b93cef08783b38c1622b030b.exe	87
PID 3080 wrote to memory of 1624	3080	JaffaCakes118_1e114210b93cef08783b38c1622b030b.exe	87
PID 3080 wrote to memory of 1624	3080	JaffaCakes118_1e114210b93cef08783b38c1622b030b.exe	87
PID 3080 wrote to memory of 1624	3080	JaffaCakes118_1e114210b93cef08783b38c1622b030b.exe	87
PID 3080 wrote to memory of 1624	3080	JaffaCakes118_1e114210b93cef08783b38c1622b030b.exe	87
PID 3080 wrote to memory of 1624	3080	JaffaCakes118_1e114210b93cef08783b38c1622b030b.exe	87
PID 3080 wrote to memory of 1624	3080	JaffaCakes118_1e114210b93cef08783b38c1622b030b.exe	87
PID 3080 wrote to memory of 1624	3080	JaffaCakes118_1e114210b93cef08783b38c1622b030b.exe	87
PID 3080 wrote to memory of 1624	3080	JaffaCakes118_1e114210b93cef08783b38c1622b030b.exe	87
PID 3080 wrote to memory of 1624	3080	JaffaCakes118_1e114210b93cef08783b38c1622b030b.exe	87
PID 3080 wrote to memory of 1624	3080	JaffaCakes118_1e114210b93cef08783b38c1622b030b.exe	87

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1e114210b93cef08783b38c1622b030b.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1e114210b93cef08783b38c1622b030b.exe"
1⤵
- Drops startup file
- Loads dropped DLL
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3080
- C:\Users\Admin\AppData\Roaming\winhost32.exe
  C:\Users\Admin\AppData\Roaming\winhost32.exe
  2⤵
  - Checks BIOS information in registry
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Checks processor information in registry
  - Enumerates system info in registry
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:1624

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

3

T1012

System Information Discovery

3

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\AppData\Local\Temp\SystmCore.dll

Filesize
14KB

MD5
9a52fa5c6808030bb7da38600efd120b

SHA1
7169d46e1ba6615049e4672218aad8df5d8dc51c

SHA256
49fd0e58f38e168384ab018ecee80306ac15232caec842e9f4554c8092593483

SHA512
7563fe497bc254f86460a3704b2c090b85b8c9b0926b8835301e6a09626c2b6492eb764771dcf56c4902d34789566756aa60369377d9c2a57d5fbb24e955127a

Download Submit
C:\Users\Admin\AppData\Roaming\winhost32.exe

Filesize
16KB

MD5
c195458ced2b3d20337f9817d735f325

SHA1
c2783201e46f326fda77ebc5899a7959848a2d97

SHA256
024c2ba11fc8edeee6aa729e1c962ffaa1ed4c5997fed0ab868921f3a58fc2b2

SHA512
7db6a0b9a03ac099d7861f0cce6907d94f36b88d675b19e61a6646036287fdc8db91568403b76cb4be41558812e42bec822db43af7ff7c3474809e4d4fe4340e

Download Submit
memory/1624-35-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1624-39-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1624-16-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1624-43-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1624-30-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1624-20-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1624-22-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1624-23-0x00000000022D0000-0x00000000022D1000-memory.dmp

Filesize
4KB

Download
memory/1624-24-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1624-27-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1624-26-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1624-25-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1624-42-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1624-41-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1624-19-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1624-31-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1624-32-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1624-33-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1624-34-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1624-40-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1624-36-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1624-37-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1624-38-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/3080-29-0x00000000753D0000-0x0000000075981000-memory.dmp

Filesize
5.7MB

Download
memory/3080-0-0x00000000753D2000-0x00000000753D3000-memory.dmp

Filesize
4KB

Download
memory/3080-28-0x00000000753D2000-0x00000000753D3000-memory.dmp

Filesize
4KB

Download
memory/3080-2-0x00000000753D0000-0x0000000075981000-memory.dmp

Filesize
5.7MB

Download
memory/3080-1-0x00000000753D0000-0x0000000075981000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads