darkcomet | fecacc482aeecf02f74ec6c031edf49f8be5617479e45f1c83a76c994124cb17

General

Target

JaffaCakes118_9130dd0587c5be70b699cfbe209e37a6.exe
Size

776KB
MD5

9130dd0587c5be70b699cfbe209e37a6
SHA1

4a5c9cec82a10f0f65d2db1e67d51fe6c3c180d2
SHA256

fecacc482aeecf02f74ec6c031edf49f8be5617479e45f1c83a76c994124cb17
SHA512

a0935f541e75f3dc6b344e3792a8cf60544aa0eca3545b79cfa7154827f00c141752ff75cc781ac7bef9a9054eceda64fe55b9e0f013b1dc07300eee381db681
SSDEEP

12288:kt8zTwMhjTJwk3VwlA5K3MMfU4lh0rt3zefBYsN7jLQU+wjG7SOm:kqwqjTJwk3WlAF4ErtjeZ9N7iwjGGOm

Score

10^/10

darkcomet guest16 discovery rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

127.0.0.1:1604

Mutex

DC_MUTEX-9HRGXF8

Attributes

gencode
xv$#w2ngcpPV
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

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 32 set thread context of 5104	32	JaffaCakes118_9130dd0587c5be70b699cfbe209e37a6.exe	86
PID 5104 set thread context of 6048	5104	cvtres.exe	88

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_9130dd0587c5be70b699cfbe209e37a6.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cvtres.exe

Suspicious use of AdjustPrivilegeToken 24 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	5104	cvtres.exe
Token: SeSecurityPrivilege	5104	cvtres.exe
Token: SeTakeOwnershipPrivilege	5104	cvtres.exe
Token: SeLoadDriverPrivilege	5104	cvtres.exe
Token: SeSystemProfilePrivilege	5104	cvtres.exe
Token: SeSystemtimePrivilege	5104	cvtres.exe
Token: SeProfSingleProcessPrivilege	5104	cvtres.exe
Token: SeIncBasePriorityPrivilege	5104	cvtres.exe
Token: SeCreatePagefilePrivilege	5104	cvtres.exe
Token: SeBackupPrivilege	5104	cvtres.exe
Token: SeRestorePrivilege	5104	cvtres.exe
Token: SeShutdownPrivilege	5104	cvtres.exe
Token: SeDebugPrivilege	5104	cvtres.exe
Token: SeSystemEnvironmentPrivilege	5104	cvtres.exe
Token: SeChangeNotifyPrivilege	5104	cvtres.exe
Token: SeRemoteShutdownPrivilege	5104	cvtres.exe
Token: SeUndockPrivilege	5104	cvtres.exe
Token: SeManageVolumePrivilege	5104	cvtres.exe
Token: SeImpersonatePrivilege	5104	cvtres.exe
Token: SeCreateGlobalPrivilege	5104	cvtres.exe
Token: 33	5104	cvtres.exe
Token: 34	5104	cvtres.exe
Token: 35	5104	cvtres.exe
Token: 36	5104	cvtres.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 32 wrote to memory of 5104	32	JaffaCakes118_9130dd0587c5be70b699cfbe209e37a6.exe	86
PID 32 wrote to memory of 5104	32	JaffaCakes118_9130dd0587c5be70b699cfbe209e37a6.exe	86
PID 32 wrote to memory of 5104	32	JaffaCakes118_9130dd0587c5be70b699cfbe209e37a6.exe	86
PID 32 wrote to memory of 5104	32	JaffaCakes118_9130dd0587c5be70b699cfbe209e37a6.exe	86
PID 32 wrote to memory of 5104	32	JaffaCakes118_9130dd0587c5be70b699cfbe209e37a6.exe	86
PID 32 wrote to memory of 5104	32	JaffaCakes118_9130dd0587c5be70b699cfbe209e37a6.exe	86
PID 32 wrote to memory of 5104	32	JaffaCakes118_9130dd0587c5be70b699cfbe209e37a6.exe	86
PID 32 wrote to memory of 5104	32	JaffaCakes118_9130dd0587c5be70b699cfbe209e37a6.exe	86
PID 32 wrote to memory of 5104	32	JaffaCakes118_9130dd0587c5be70b699cfbe209e37a6.exe	86
PID 32 wrote to memory of 5104	32	JaffaCakes118_9130dd0587c5be70b699cfbe209e37a6.exe	86
PID 32 wrote to memory of 5104	32	JaffaCakes118_9130dd0587c5be70b699cfbe209e37a6.exe	86
PID 32 wrote to memory of 5104	32	JaffaCakes118_9130dd0587c5be70b699cfbe209e37a6.exe	86
PID 32 wrote to memory of 5104	32	JaffaCakes118_9130dd0587c5be70b699cfbe209e37a6.exe	86
PID 32 wrote to memory of 5104	32	JaffaCakes118_9130dd0587c5be70b699cfbe209e37a6.exe	86
PID 5104 wrote to memory of 6048	5104	cvtres.exe	88
PID 5104 wrote to memory of 6048	5104	cvtres.exe	88
PID 5104 wrote to memory of 6048	5104	cvtres.exe	88
PID 5104 wrote to memory of 6048	5104	cvtres.exe	88
PID 5104 wrote to memory of 6048	5104	cvtres.exe	88

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_9130dd0587c5be70b699cfbe209e37a6.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_9130dd0587c5be70b699cfbe209e37a6.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:32
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\cvtres.exe
  C:\Windows\Microsoft.NET\Framework\v2.0.50727\cvtres.exe
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:5104
- - C:\Program Files (x86)\Internet Explorer\iexplore.exe
    "C:\Program Files (x86)\Internet Explorer\iexplore.exe"
    3⤵
    PID:6048

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

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

memory/32-0-0x00000000746A2000-0x00000000746A3000-memory.dmp

Filesize
4KB

Download
memory/32-1-0x00000000746A0000-0x0000000074C51000-memory.dmp

Filesize
5.7MB

Download
memory/32-2-0x00000000746A0000-0x0000000074C51000-memory.dmp

Filesize
5.7MB

Download
memory/32-11-0x00000000746A0000-0x0000000074C51000-memory.dmp

Filesize
5.7MB

Download
memory/5104-3-0x0000000000400000-0x00000000004C2000-memory.dmp

Filesize
776KB

Download
memory/5104-6-0x0000000000400000-0x00000000004C2000-memory.dmp

Filesize
776KB

Download
memory/5104-4-0x0000000000400000-0x00000000004C2000-memory.dmp

Filesize
776KB

Download
memory/5104-7-0x0000000000400000-0x00000000004C2000-memory.dmp

Filesize
776KB

Download
memory/5104-8-0x0000000000400000-0x00000000004C2000-memory.dmp

Filesize
776KB

Download
memory/5104-10-0x0000000000400000-0x00000000004C2000-memory.dmp

Filesize
776KB

Download
memory/6048-9-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download

Analysis

Sharing