darkcomet | a56e1e7aad8332d9e8a2b349548599ff11b6c27e576a627b2ec9d822964970a0

Analysis

max time kernel
150s
max time network
150s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
12-12-2024 11:41

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General

Target

e635cf1f967e29ea6078f4a5491b4b89_JaffaCakes118.exe
Size

1.3MB
MD5

e635cf1f967e29ea6078f4a5491b4b89
SHA1

6faf30de2b4b1e198650bfa9aa054ceece5e8a2a
SHA256

a56e1e7aad8332d9e8a2b349548599ff11b6c27e576a627b2ec9d822964970a0
SHA512

9e8e26a437355e1fdf2ec0f621bd32b10cccf74886ab5631396bf668ffdcabf2635b81e23c930f26b55be988a84af73cf79801eed362fb4244f72bcf4b39ec3e
SSDEEP

24576:XarjK0uR6rw4Sp/rhEBjhOJcc5eJ0dpnMiQi6U6lCT4dvzR:XRmB4pnBHOO4dbR

Score

10^/10

darkcomet bc discovery persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

me.codeunix.net:8443

Mutex

DC_MUTEX-W4J6FQN

Attributes

gencode
rVV8XaKZqPHj
install
false
offline_keylogger
true
persistence
false

Signatures

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

Executes dropped EXE 2 IoCs

pid	Process
2280	firefox.exe
2764	vbc.exe

Loads dropped DLL 2 IoCs

pid	Process
2696	e635cf1f967e29ea6078f4a5491b4b89_JaffaCakes118.exe
2696	e635cf1f967e29ea6078f4a5491b4b89_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

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Windows\CurrentVersion\Run\JavaUpdater = "C:\\Users\\Admin\\AppData\\Local\\Temp\\JavaUpdater\\JavaUpdater.exe"	e635cf1f967e29ea6078f4a5491b4b89_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2696 set thread context of 2764	2696	e635cf1f967e29ea6078f4a5491b4b89_JaffaCakes118.exe	32

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 3 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	e635cf1f967e29ea6078f4a5491b4b89_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	firefox.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vbc.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2696	e635cf1f967e29ea6078f4a5491b4b89_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 24 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2764	vbc.exe
Token: SeSecurityPrivilege	2764	vbc.exe
Token: SeTakeOwnershipPrivilege	2764	vbc.exe
Token: SeLoadDriverPrivilege	2764	vbc.exe
Token: SeSystemProfilePrivilege	2764	vbc.exe
Token: SeSystemtimePrivilege	2764	vbc.exe
Token: SeProfSingleProcessPrivilege	2764	vbc.exe
Token: SeIncBasePriorityPrivilege	2764	vbc.exe
Token: SeCreatePagefilePrivilege	2764	vbc.exe
Token: SeBackupPrivilege	2764	vbc.exe
Token: SeRestorePrivilege	2764	vbc.exe
Token: SeShutdownPrivilege	2764	vbc.exe
Token: SeDebugPrivilege	2764	vbc.exe
Token: SeSystemEnvironmentPrivilege	2764	vbc.exe
Token: SeChangeNotifyPrivilege	2764	vbc.exe
Token: SeRemoteShutdownPrivilege	2764	vbc.exe
Token: SeUndockPrivilege	2764	vbc.exe
Token: SeManageVolumePrivilege	2764	vbc.exe
Token: SeImpersonatePrivilege	2764	vbc.exe
Token: SeCreateGlobalPrivilege	2764	vbc.exe
Token: 33	2764	vbc.exe
Token: 34	2764	vbc.exe
Token: 35	2764	vbc.exe
Token: SeDebugPrivilege	2696	e635cf1f967e29ea6078f4a5491b4b89_JaffaCakes118.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2764	vbc.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 2696 wrote to memory of 2280	2696	e635cf1f967e29ea6078f4a5491b4b89_JaffaCakes118.exe	31
PID 2696 wrote to memory of 2280	2696	e635cf1f967e29ea6078f4a5491b4b89_JaffaCakes118.exe	31
PID 2696 wrote to memory of 2280	2696	e635cf1f967e29ea6078f4a5491b4b89_JaffaCakes118.exe	31
PID 2696 wrote to memory of 2280	2696	e635cf1f967e29ea6078f4a5491b4b89_JaffaCakes118.exe	31
PID 2696 wrote to memory of 2764	2696	e635cf1f967e29ea6078f4a5491b4b89_JaffaCakes118.exe	32
PID 2696 wrote to memory of 2764	2696	e635cf1f967e29ea6078f4a5491b4b89_JaffaCakes118.exe	32
PID 2696 wrote to memory of 2764	2696	e635cf1f967e29ea6078f4a5491b4b89_JaffaCakes118.exe	32
PID 2696 wrote to memory of 2764	2696	e635cf1f967e29ea6078f4a5491b4b89_JaffaCakes118.exe	32
PID 2696 wrote to memory of 2764	2696	e635cf1f967e29ea6078f4a5491b4b89_JaffaCakes118.exe	32
PID 2696 wrote to memory of 2764	2696	e635cf1f967e29ea6078f4a5491b4b89_JaffaCakes118.exe	32
PID 2696 wrote to memory of 2764	2696	e635cf1f967e29ea6078f4a5491b4b89_JaffaCakes118.exe	32
PID 2696 wrote to memory of 2764	2696	e635cf1f967e29ea6078f4a5491b4b89_JaffaCakes118.exe	32
PID 2696 wrote to memory of 2764	2696	e635cf1f967e29ea6078f4a5491b4b89_JaffaCakes118.exe	32
PID 2696 wrote to memory of 2764	2696	e635cf1f967e29ea6078f4a5491b4b89_JaffaCakes118.exe	32
PID 2696 wrote to memory of 2764	2696	e635cf1f967e29ea6078f4a5491b4b89_JaffaCakes118.exe	32
PID 2696 wrote to memory of 2764	2696	e635cf1f967e29ea6078f4a5491b4b89_JaffaCakes118.exe	32
PID 2696 wrote to memory of 2764	2696	e635cf1f967e29ea6078f4a5491b4b89_JaffaCakes118.exe	32

C:\Users\Admin\AppData\Local\Temp\e635cf1f967e29ea6078f4a5491b4b89_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\e635cf1f967e29ea6078f4a5491b4b89_JaffaCakes118.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2696
- C:\Users\Admin\AppData\Local\Temp\firefox.exe
  "C:\Users\Admin\AppData\Local\Temp\firefox.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:2280
- C:\Users\Admin\AppData\Local\Temp\AppLunch\vbc.exe
  C:\Users\Admin\AppData\Local\Temp\\AppLunch\vbc.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:2764

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

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

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

\Users\Admin\AppData\Local\Temp\AppLunch\vbc.exe

Filesize
1.1MB

MD5
34aa912defa18c2c129f1e09d75c1d7e

SHA1
9c3046324657505a30ecd9b1fdb46c05bde7d470

SHA256
6df94b7fa33f1b87142adc39b3db0613fc520d9e7a5fd6a5301dd7f51f8d0386

SHA512
d1ea9368f5d7166180612fd763c87afb647d088498887961f5e7fb0a10f4a808bd5928e8a3666d70ff794093c51ecca8816f75dd47652fd4eb23dce7f9aa1f98

Download Submit
\Users\Admin\AppData\Local\Temp\firefox.exe

Filesize
898KB

MD5
c8d28f8b498cadbb9445ac4545bd41b7

SHA1
b0efe230c29e5545b73dcc6dea472b7725353812

SHA256
fb013cbcbfe22507dc4bbbc60267f5c28c749dfc04b6808c9870588ec816521d

SHA512
69d38dab476f552db08683038db9934601c7aed45602499cec02ca899d1779d8e14c831e3fff2a05b88690f327b65231cc7c907a9a3b24148d7ffe23dcfe060d

Download Submit
memory/2696-0-0x0000000074D11000-0x0000000074D12000-memory.dmp

Filesize
4KB

Download
memory/2696-1-0x0000000074D10000-0x00000000752BB000-memory.dmp

Filesize
5.7MB

Download
memory/2696-2-0x0000000074D10000-0x00000000752BB000-memory.dmp

Filesize
5.7MB

Download
memory/2696-3-0x0000000074D10000-0x00000000752BB000-memory.dmp

Filesize
5.7MB

Download
memory/2696-47-0x00000000020A0000-0x00000000020E0000-memory.dmp

Filesize
256KB

Download
memory/2696-44-0x0000000074D10000-0x00000000752BB000-memory.dmp

Filesize
5.7MB

Download
memory/2696-43-0x00000000020A0000-0x00000000020E0000-memory.dmp

Filesize
256KB

Download
memory/2764-42-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2764-45-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2764-23-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2764-21-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2764-19-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2764-29-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2764-37-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2764-36-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2764-39-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2764-38-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2764-33-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2764-28-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2764-41-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2764-16-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2764-17-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2764-25-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2764-46-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2764-31-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2764-48-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2764-49-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2764-50-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2764-51-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2764-52-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2764-53-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2764-54-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2764-55-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2764-56-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2764-57-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2764-58-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2764-59-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2764-60-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download