darkcomet | 66254aea3cdef64b2742b9e33553ab42de2009c5d1368f9a3fe601af5b415e32

General

Target

8a7b28ececd740ba77ed7ac264793865_JaffaCakes118.exe
Size

924KB
MD5

8a7b28ececd740ba77ed7ac264793865
SHA1

c7c3b55424a654613bb6d4f32c1ebbc87ac839c6
SHA256

66254aea3cdef64b2742b9e33553ab42de2009c5d1368f9a3fe601af5b415e32
SHA512

8499dc97eac611ee8a56927bdf009df51b85309cd3979f8c1848778d883da6bbfa7d5bdb921bc31e578837d266cacbf480e4bde7b3a3232832442138addf7d95
SSDEEP

24576:Dxdt37sx7y5DZh1b4q9ayM5HEP3hjD7WQoa:DLtLdKt163Zq

Score

10^/10

darkcomet discovery persistence rat trojan

Malware Config

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

Processes:

8a7b28ececd740ba77ed7ac264793865_JaffaCakes118.exe

pid process

2596 8a7b28ececd740ba77ed7ac264793865_JaffaCakes118.exe

pid	process
2596	8a7b28ececd740ba77ed7ac264793865_JaffaCakes118.exe

Loads dropped DLL 5 IoCs

Processes:

8a7b28ececd740ba77ed7ac264793865_JaffaCakes118.exe8a7b28ececd740ba77ed7ac264793865_JaffaCakes118.exe

pid	process
2604	8a7b28ececd740ba77ed7ac264793865_JaffaCakes118.exe
2604	8a7b28ececd740ba77ed7ac264793865_JaffaCakes118.exe
2596	8a7b28ececd740ba77ed7ac264793865_JaffaCakes118.exe
2596	8a7b28ececd740ba77ed7ac264793865_JaffaCakes118.exe
2596	8a7b28ececd740ba77ed7ac264793865_JaffaCakes118.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

Processes:

8a7b28ececd740ba77ed7ac264793865_JaffaCakes118.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1163522206-1469769407-485553996-1000\Software\Microsoft\Windows\CurrentVersion\Run\hWCxxwCmfmRrdtwzrQtYIEsNEtISBBoaCYkygxjnOCysLIfBZf = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Templates\\8a7b28ececd740ba77ed7ac264793865_JaffaCakes118.exe"	8a7b28ececd740ba77ed7ac264793865_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

8a7b28ececd740ba77ed7ac264793865_JaffaCakes118.exe

description pid process target process

PID 2596 set thread context of 2916 2596 8a7b28ececd740ba77ed7ac264793865_JaffaCakes118.exe vbc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

description	pid	process	target process
PID 2596 set thread context of 2916	2596	8a7b28ececd740ba77ed7ac264793865_JaffaCakes118.exe	vbc.exe

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

Processes:

8a7b28ececd740ba77ed7ac264793865_JaffaCakes118.exe8a7b28ececd740ba77ed7ac264793865_JaffaCakes118.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	8a7b28ececd740ba77ed7ac264793865_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	8a7b28ececd740ba77ed7ac264793865_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

8a7b28ececd740ba77ed7ac264793865_JaffaCakes118.exe8a7b28ececd740ba77ed7ac264793865_JaffaCakes118.exe

description	pid	process	target process
PID 2604 wrote to memory of 2596	2604	8a7b28ececd740ba77ed7ac264793865_JaffaCakes118.exe	8a7b28ececd740ba77ed7ac264793865_JaffaCakes118.exe
PID 2604 wrote to memory of 2596	2604	8a7b28ececd740ba77ed7ac264793865_JaffaCakes118.exe	8a7b28ececd740ba77ed7ac264793865_JaffaCakes118.exe
PID 2604 wrote to memory of 2596	2604	8a7b28ececd740ba77ed7ac264793865_JaffaCakes118.exe	8a7b28ececd740ba77ed7ac264793865_JaffaCakes118.exe
PID 2604 wrote to memory of 2596	2604	8a7b28ececd740ba77ed7ac264793865_JaffaCakes118.exe	8a7b28ececd740ba77ed7ac264793865_JaffaCakes118.exe
PID 2596 wrote to memory of 2916	2596	8a7b28ececd740ba77ed7ac264793865_JaffaCakes118.exe	vbc.exe
PID 2596 wrote to memory of 2916	2596	8a7b28ececd740ba77ed7ac264793865_JaffaCakes118.exe	vbc.exe
PID 2596 wrote to memory of 2916	2596	8a7b28ececd740ba77ed7ac264793865_JaffaCakes118.exe	vbc.exe
PID 2596 wrote to memory of 2916	2596	8a7b28ececd740ba77ed7ac264793865_JaffaCakes118.exe	vbc.exe
PID 2596 wrote to memory of 2916	2596	8a7b28ececd740ba77ed7ac264793865_JaffaCakes118.exe	vbc.exe
PID 2596 wrote to memory of 2916	2596	8a7b28ececd740ba77ed7ac264793865_JaffaCakes118.exe	vbc.exe
PID 2596 wrote to memory of 2916	2596	8a7b28ececd740ba77ed7ac264793865_JaffaCakes118.exe	vbc.exe
PID 2596 wrote to memory of 2916	2596	8a7b28ececd740ba77ed7ac264793865_JaffaCakes118.exe	vbc.exe
PID 2596 wrote to memory of 2916	2596	8a7b28ececd740ba77ed7ac264793865_JaffaCakes118.exe	vbc.exe
PID 2596 wrote to memory of 2916	2596	8a7b28ececd740ba77ed7ac264793865_JaffaCakes118.exe	vbc.exe
PID 2596 wrote to memory of 2916	2596	8a7b28ececd740ba77ed7ac264793865_JaffaCakes118.exe	vbc.exe
PID 2596 wrote to memory of 2916	2596	8a7b28ececd740ba77ed7ac264793865_JaffaCakes118.exe	vbc.exe
PID 2596 wrote to memory of 2916	2596	8a7b28ececd740ba77ed7ac264793865_JaffaCakes118.exe	vbc.exe

C:\Users\Admin\AppData\Local\Temp\8a7b28ececd740ba77ed7ac264793865_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\8a7b28ececd740ba77ed7ac264793865_JaffaCakes118.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2604
- C:\Users\Admin\Documents\8a7b28ececd740ba77ed7ac264793865_JaffaCakes118.exe
  "C:\Users\Admin\Documents\8a7b28ececd740ba77ed7ac264793865_JaffaCakes118.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Adds Run key to start application
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2596
- - C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
    C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
    3⤵
    PID:2916

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 Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\aclui.dll

Filesize
17KB

MD5
e99f74ae594c1b373fa0d34193dce208

SHA1
3933f949724a6702e0038295287a39c53592b11e

SHA256
1dbb3b418bd78abb49d583f2b9cea6b20fe9fece0a59c118ddf104a672e29ebd

SHA512
355a2a3955e0f50b0c41a24589b9283892689faa61aea6360a1b762f5f2f58166c579b37dc0b003e716c1dc760f1931b73faf6fa3e2b21f8571dbdf5ee37c030

Download Submit
\Users\Admin\Documents\8a7b28ececd740ba77ed7ac264793865_JaffaCakes118.exe

Filesize
924KB

MD5
8a7b28ececd740ba77ed7ac264793865

SHA1
c7c3b55424a654613bb6d4f32c1ebbc87ac839c6

SHA256
66254aea3cdef64b2742b9e33553ab42de2009c5d1368f9a3fe601af5b415e32

SHA512
8499dc97eac611ee8a56927bdf009df51b85309cd3979f8c1848778d883da6bbfa7d5bdb921bc31e578837d266cacbf480e4bde7b3a3232832442138addf7d95

Download Submit
memory/2596-43-0x0000000074330000-0x00000000748DB000-memory.dmp

Filesize
5.7MB

Download
memory/2596-15-0x0000000074330000-0x00000000748DB000-memory.dmp

Filesize
5.7MB

Download
memory/2596-18-0x0000000074330000-0x00000000748DB000-memory.dmp

Filesize
5.7MB

Download
memory/2604-1-0x0000000074330000-0x00000000748DB000-memory.dmp

Filesize
5.7MB

Download
memory/2604-2-0x0000000074330000-0x00000000748DB000-memory.dmp

Filesize
5.7MB

Download
memory/2604-14-0x0000000074330000-0x00000000748DB000-memory.dmp

Filesize
5.7MB

Download
memory/2604-0-0x0000000074331000-0x0000000074332000-memory.dmp

Filesize
4KB

Download
memory/2916-32-0x0000000013140000-0x00000000131F6000-memory.dmp

Filesize
728KB

Download
memory/2916-34-0x0000000013140000-0x00000000131F6000-memory.dmp

Filesize
728KB

Download
memory/2916-35-0x0000000013140000-0x00000000131F6000-memory.dmp

Filesize
728KB

Download
memory/2916-36-0x0000000013140000-0x00000000131F6000-memory.dmp

Filesize
728KB

Download
memory/2916-37-0x0000000013140000-0x00000000131F6000-memory.dmp

Filesize
728KB

Download
memory/2916-38-0x0000000013140000-0x00000000131F6000-memory.dmp

Filesize
728KB

Download
memory/2916-39-0x0000000013140000-0x00000000131F6000-memory.dmp

Filesize
728KB

Download
memory/2916-40-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2916-42-0x0000000013140000-0x00000000131F6000-memory.dmp

Filesize
728KB

Download
memory/2916-33-0x0000000013140000-0x00000000131F6000-memory.dmp

Filesize
728KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads