darkcomet | dd61cab570c1bf03346e2196513d8af18e778464dfe9d53df78d9c4e6da87349

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
20-04-2024 08:15

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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

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
Uses the VBS compiler for execution 1 TTPs

Scripting
T1064

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-1-5-21-1298544033-3225604241-2703760938-1000\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 1676 set thread context of 2608	1676	fc5234363831a8cb436a0d7145dce410_JaffaCakes118.exe	30

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

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 23 IoCs

Processes:

vbc.exe

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2608	vbc.exe
Token: SeSecurityPrivilege	2608	vbc.exe
Token: SeTakeOwnershipPrivilege	2608	vbc.exe
Token: SeLoadDriverPrivilege	2608	vbc.exe
Token: SeSystemProfilePrivilege	2608	vbc.exe
Token: SeSystemtimePrivilege	2608	vbc.exe
Token: SeProfSingleProcessPrivilege	2608	vbc.exe
Token: SeIncBasePriorityPrivilege	2608	vbc.exe
Token: SeCreatePagefilePrivilege	2608	vbc.exe
Token: SeBackupPrivilege	2608	vbc.exe
Token: SeRestorePrivilege	2608	vbc.exe
Token: SeShutdownPrivilege	2608	vbc.exe
Token: SeDebugPrivilege	2608	vbc.exe
Token: SeSystemEnvironmentPrivilege	2608	vbc.exe
Token: SeChangeNotifyPrivilege	2608	vbc.exe
Token: SeRemoteShutdownPrivilege	2608	vbc.exe
Token: SeUndockPrivilege	2608	vbc.exe
Token: SeManageVolumePrivilege	2608	vbc.exe
Token: SeImpersonatePrivilege	2608	vbc.exe
Token: SeCreateGlobalPrivilege	2608	vbc.exe
Token: 33	2608	vbc.exe
Token: 34	2608	vbc.exe
Token: 35	2608	vbc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

vbc.exe

pid	Process
2608	vbc.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

fc5234363831a8cb436a0d7145dce410_JaffaCakes118.exe

description	pid	Process	procid_target
PID 1676 wrote to memory of 1732	1676	fc5234363831a8cb436a0d7145dce410_JaffaCakes118.exe	28
PID 1676 wrote to memory of 1732	1676	fc5234363831a8cb436a0d7145dce410_JaffaCakes118.exe	28
PID 1676 wrote to memory of 1732	1676	fc5234363831a8cb436a0d7145dce410_JaffaCakes118.exe	28
PID 1676 wrote to memory of 1732	1676	fc5234363831a8cb436a0d7145dce410_JaffaCakes118.exe	28
PID 1676 wrote to memory of 2608	1676	fc5234363831a8cb436a0d7145dce410_JaffaCakes118.exe	30
PID 1676 wrote to memory of 2608	1676	fc5234363831a8cb436a0d7145dce410_JaffaCakes118.exe	30
PID 1676 wrote to memory of 2608	1676	fc5234363831a8cb436a0d7145dce410_JaffaCakes118.exe	30
PID 1676 wrote to memory of 2608	1676	fc5234363831a8cb436a0d7145dce410_JaffaCakes118.exe	30
PID 1676 wrote to memory of 2608	1676	fc5234363831a8cb436a0d7145dce410_JaffaCakes118.exe	30
PID 1676 wrote to memory of 2608	1676	fc5234363831a8cb436a0d7145dce410_JaffaCakes118.exe	30
PID 1676 wrote to memory of 2608	1676	fc5234363831a8cb436a0d7145dce410_JaffaCakes118.exe	30
PID 1676 wrote to memory of 2608	1676	fc5234363831a8cb436a0d7145dce410_JaffaCakes118.exe	30
PID 1676 wrote to memory of 2608	1676	fc5234363831a8cb436a0d7145dce410_JaffaCakes118.exe	30
PID 1676 wrote to memory of 2608	1676	fc5234363831a8cb436a0d7145dce410_JaffaCakes118.exe	30
PID 1676 wrote to memory of 2608	1676	fc5234363831a8cb436a0d7145dce410_JaffaCakes118.exe	30
PID 1676 wrote to memory of 2608	1676	fc5234363831a8cb436a0d7145dce410_JaffaCakes118.exe	30
PID 1676 wrote to memory of 2608	1676	fc5234363831a8cb436a0d7145dce410_JaffaCakes118.exe	30

C:\Users\Admin\AppData\Local\Temp\fc5234363831a8cb436a0d7145dce410_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\fc5234363831a8cb436a0d7145dce410_JaffaCakes118.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1676
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C ren C:\Users\Admin\AppData\Roaming\csrss csrss.exe && exit
  2⤵
  PID:1732
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
  C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:2608

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scripting

T1064

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Scripting

T1064

Credential Access

Discovery

System Information Discovery

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/1676-24-0x0000000074510000-0x0000000074ABB000-memory.dmp

Filesize
5.7MB

Download
memory/1676-1-0x0000000074510000-0x0000000074ABB000-memory.dmp

Filesize
5.7MB

Download
memory/1676-2-0x0000000002030000-0x0000000002070000-memory.dmp

Filesize
256KB

Download
memory/1676-0-0x0000000074510000-0x0000000074ABB000-memory.dmp

Filesize
5.7MB

Download
memory/2608-27-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2608-31-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2608-11-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2608-13-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2608-15-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2608-17-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2608-18-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2608-20-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2608-22-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2608-23-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2608-7-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2608-25-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2608-26-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2608-5-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2608-29-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2608-28-0x0000000000200000-0x0000000000201000-memory.dmp

Filesize
4KB

Download
memory/2608-30-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2608-9-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2608-32-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2608-33-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2608-34-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2608-35-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2608-36-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2608-37-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2608-38-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2608-39-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2608-40-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2608-41-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2608-42-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2608-43-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2608-44-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2608-45-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2608-46-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download