darkcomet | dd61cab570c1bf03346e2196513d8af18e778464dfe9d53df78d9c4e6da87349

General

Target

fc5234363831a8cb436a0d7145dce410_JaffaCakes118.exe
Size

640KB
MD5

fc5234363831a8cb436a0d7145dce410
SHA1

ff53edc61ad734404713944b33f6080aa485c94d
SHA256

dd61cab570c1bf03346e2196513d8af18e778464dfe9d53df78d9c4e6da87349
SHA512

bc92f6d4485286a9733c424fabc69a21c917125b6e101133d03d50e95a65d6819e45b197cdfa27066481ca8548bf61fc64d7372f31a2b59c5f9f4e9c4f426dab
SSDEEP

12288:e5Cqbyhaq5kv9lJOps//fBWIcZk5z0uNJfUB0BHJ532jf4e:enlq5YP//fBZgk5zj75Bp5AQe

Score

10^/10

darkcomet guest16 persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

1ac.sytes.net:1604

Mutex

DC_MUTEX-VBZ95VG

Attributes

gencode
vCUxRP7uMW5p
install
false
offline_keylogger
true
persistence
false

Signatures

Darkcomet
DarkComet is a remote access trojan (RAT) developed by Jean-Pierre Lesueur.
trojan rat 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

Processes:

fc5234363831a8cb436a0d7145dce410_JaffaCakes118.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-355664440-2199602304-1223909400-1000\Control Panel\International\Geo\Nation	fc5234363831a8cb436a0d7145dce410_JaffaCakes118.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

fc5234363831a8cb436a0d7145dce410_JaffaCakes118.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-355664440-2199602304-1223909400-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss.exe = "C:\\Users\\Admin\\AppData\\Roaming\\csrss.exe"	fc5234363831a8cb436a0d7145dce410_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

fc5234363831a8cb436a0d7145dce410_JaffaCakes118.exe

description	pid	Process	procid_target
PID 1672 set thread context of 2648	1672	fc5234363831a8cb436a0d7145dce410_JaffaCakes118.exe	89

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 24 IoCs

Processes:

csc.exe

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2648	csc.exe
Token: SeSecurityPrivilege	2648	csc.exe
Token: SeTakeOwnershipPrivilege	2648	csc.exe
Token: SeLoadDriverPrivilege	2648	csc.exe
Token: SeSystemProfilePrivilege	2648	csc.exe
Token: SeSystemtimePrivilege	2648	csc.exe
Token: SeProfSingleProcessPrivilege	2648	csc.exe
Token: SeIncBasePriorityPrivilege	2648	csc.exe
Token: SeCreatePagefilePrivilege	2648	csc.exe
Token: SeBackupPrivilege	2648	csc.exe
Token: SeRestorePrivilege	2648	csc.exe
Token: SeShutdownPrivilege	2648	csc.exe
Token: SeDebugPrivilege	2648	csc.exe
Token: SeSystemEnvironmentPrivilege	2648	csc.exe
Token: SeChangeNotifyPrivilege	2648	csc.exe
Token: SeRemoteShutdownPrivilege	2648	csc.exe
Token: SeUndockPrivilege	2648	csc.exe
Token: SeManageVolumePrivilege	2648	csc.exe
Token: SeImpersonatePrivilege	2648	csc.exe
Token: SeCreateGlobalPrivilege	2648	csc.exe
Token: 33	2648	csc.exe
Token: 34	2648	csc.exe
Token: 35	2648	csc.exe
Token: 36	2648	csc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

csc.exe

pid	Process
2648	csc.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

fc5234363831a8cb436a0d7145dce410_JaffaCakes118.exe

description	pid	Process	procid_target
PID 1672 wrote to memory of 4236	1672	fc5234363831a8cb436a0d7145dce410_JaffaCakes118.exe	86
PID 1672 wrote to memory of 4236	1672	fc5234363831a8cb436a0d7145dce410_JaffaCakes118.exe	86
PID 1672 wrote to memory of 4236	1672	fc5234363831a8cb436a0d7145dce410_JaffaCakes118.exe	86
PID 1672 wrote to memory of 2648	1672	fc5234363831a8cb436a0d7145dce410_JaffaCakes118.exe	89
PID 1672 wrote to memory of 2648	1672	fc5234363831a8cb436a0d7145dce410_JaffaCakes118.exe	89
PID 1672 wrote to memory of 2648	1672	fc5234363831a8cb436a0d7145dce410_JaffaCakes118.exe	89
PID 1672 wrote to memory of 2648	1672	fc5234363831a8cb436a0d7145dce410_JaffaCakes118.exe	89
PID 1672 wrote to memory of 2648	1672	fc5234363831a8cb436a0d7145dce410_JaffaCakes118.exe	89
PID 1672 wrote to memory of 2648	1672	fc5234363831a8cb436a0d7145dce410_JaffaCakes118.exe	89
PID 1672 wrote to memory of 2648	1672	fc5234363831a8cb436a0d7145dce410_JaffaCakes118.exe	89
PID 1672 wrote to memory of 2648	1672	fc5234363831a8cb436a0d7145dce410_JaffaCakes118.exe	89
PID 1672 wrote to memory of 2648	1672	fc5234363831a8cb436a0d7145dce410_JaffaCakes118.exe	89
PID 1672 wrote to memory of 2648	1672	fc5234363831a8cb436a0d7145dce410_JaffaCakes118.exe	89
PID 1672 wrote to memory of 2648	1672	fc5234363831a8cb436a0d7145dce410_JaffaCakes118.exe	89
PID 1672 wrote to memory of 2648	1672	fc5234363831a8cb436a0d7145dce410_JaffaCakes118.exe	89
PID 1672 wrote to memory of 2648	1672	fc5234363831a8cb436a0d7145dce410_JaffaCakes118.exe	89
PID 1672 wrote to memory of 2648	1672	fc5234363831a8cb436a0d7145dce410_JaffaCakes118.exe	89

C:\Users\Admin\AppData\Local\Temp\fc5234363831a8cb436a0d7145dce410_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\fc5234363831a8cb436a0d7145dce410_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1672
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C ren C:\Users\Admin\AppData\Roaming\csrss csrss.exe && exit
  2⤵
  PID:4236
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\csc.exe
  C:\Windows\Microsoft.NET\Framework\v2.0.50727\csc.exe
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:2648

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\csrss

Filesize
640KB

MD5
fc5234363831a8cb436a0d7145dce410

SHA1
ff53edc61ad734404713944b33f6080aa485c94d

SHA256
dd61cab570c1bf03346e2196513d8af18e778464dfe9d53df78d9c4e6da87349

SHA512
bc92f6d4485286a9733c424fabc69a21c917125b6e101133d03d50e95a65d6819e45b197cdfa27066481ca8548bf61fc64d7372f31a2b59c5f9f4e9c4f426dab

Download Submit
memory/1672-9-0x0000000074670000-0x0000000074C21000-memory.dmp

Filesize
5.7MB

Download
memory/1672-1-0x0000000001740000-0x0000000001750000-memory.dmp

Filesize
64KB

Download
memory/1672-2-0x0000000074670000-0x0000000074C21000-memory.dmp

Filesize
5.7MB

Download
memory/1672-0-0x0000000074670000-0x0000000074C21000-memory.dmp

Filesize
5.7MB

Download
memory/2648-14-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2648-18-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2648-8-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2648-10-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2648-11-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2648-13-0x00000000022D0000-0x00000000022D1000-memory.dmp

Filesize
4KB

Download
memory/2648-12-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2648-5-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2648-15-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2648-16-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2648-17-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2648-6-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2648-19-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2648-20-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2648-21-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2648-22-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2648-23-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2648-24-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2648-25-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2648-26-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2648-27-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2648-28-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads