darkcomet | aa5e6ad5e69f11766d24586fd67c0ff88169c75314607b7072bff239d74c2dd9

Analysis

max time kernel
170s
max time network
49s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
23-11-2022 13:26

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

aa5e6ad5e69f11766d24586fd67c0ff88169c75314607b7072bff239d74c2dd9.exe
Size

610KB
MD5

54faf0f26546176482fe0e169246f9ae
SHA1

50349a8aa03861501b3f4c654d4ef5e2595a9c2c
SHA256

aa5e6ad5e69f11766d24586fd67c0ff88169c75314607b7072bff239d74c2dd9
SHA512

aa8fd909f397a411078509e6eb6cea743373979a1ab6bd3f43a0dcfb04633f39e481a54d27da83260692409de75a484180377471c252569f457db32504cd3ff4
SSDEEP

12288:wlU4xmr7+rY8SJNVtoAsGQ651D9Uymb3/DyYWqVpV+T/uJ:SU4xmf4VSbtaQ51KyIvBWqC/u

Score

10^/10

darkcomet fuck persistence rat trojan upx

Malware Config

Extracted

Family

darkcomet

Botnet

FUCK

uche.ddns.net:1604

Mutex

DC_MUTEX-WV2EB2L

Attributes

InstallPath
C:\Program Files\CCleaner\CCleaner-resident.exe
gencode
llCl02JUQDqQ
install
true
offline_keylogger
true
persistence
true
reg_key
CCleaner Resident Cleaner Service

Signatures

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

Modifies WinLogon for persistence 2 TTPs 2 IoCs

persistence

Winlogon Helper DLL

T1004

Modify Registry

T1112

Processes:

aa5e6ad5e69f11766d24586fd67c0ff88169c75314607b7072bff239d74c2dd9.exenotepad .exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "C:\\Users\\Admin\\AppData\\Local\\Temp\\file.exe"	aa5e6ad5e69f11766d24586fd67c0ff88169c75314607b7072bff239d74c2dd9.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\ProgramData\\Microsoft\\Windows\\Start Menu\\Programs\\C:\\Program Files\\CCleaner\\llCl02JUQDqQ\\CCleaner-resident.exe"	notepad .exe

Executes dropped EXE 1 IoCs

Processes:

notepad .exe

pid process

864 notepad .exe

pid	process
864	notepad .exe

UPX packed file 8 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

Processes:

resource	yara_rule
behavioral1/memory/864-61-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/864-65-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/864-69-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/864-73-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/864-75-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/864-76-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/864-80-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/864-81-0x0000000000400000-0x00000000004B7000-memory.dmp	upx

Loads dropped DLL 1 IoCs

Processes:

aa5e6ad5e69f11766d24586fd67c0ff88169c75314607b7072bff239d74c2dd9.exe

pid process

2004 aa5e6ad5e69f11766d24586fd67c0ff88169c75314607b7072bff239d74c2dd9.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

notepad .exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\CCleaner Resident Cleaner Service = "C:\\ProgramData\\Microsoft\\Windows\\Start Menu\\Programs\\C:\\Program Files\\CCleaner\\llCl02JUQDqQ\\CCleaner-resident.exe"	notepad .exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

aa5e6ad5e69f11766d24586fd67c0ff88169c75314607b7072bff239d74c2dd9.exe

description	pid	process	target process
PID 2004 set thread context of 864	2004	aa5e6ad5e69f11766d24586fd67c0ff88169c75314607b7072bff239d74c2dd9.exe	notepad .exe

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

System Information Discovery
T1082
Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

472 timeout.exe

pid	process
472	timeout.exe

NTFS ADS 4 IoCs

Processes:

notepad .exe

description	ioc	process
File created	C:\ProgramData\Microsoft\Windows\Start Menu\Programs\C:\Program Files\CCleaner\CCleaner-resident.exe	notepad .exe
File created	C:\ProgramData\Microsoft\Windows\Start Menu\Programs\C:\Program Files\CCleaner\llCl02JUQDqQ\CCleaner-resident.exe	notepad .exe
File opened for modification	C:\ProgramData\Microsoft\Windows\Start Menu\Programs\C:\Program Files\CCleaner\llCl02JUQDqQ\CCleaner-resident.exe	notepad .exe
File opened for modification	C:\ProgramData\Microsoft\Windows\Start Menu\Programs\C:\Program Files\CCleaner\llCl02JUQDqQ\	notepad .exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

aa5e6ad5e69f11766d24586fd67c0ff88169c75314607b7072bff239d74c2dd9.exe

pid	process
2004	aa5e6ad5e69f11766d24586fd67c0ff88169c75314607b7072bff239d74c2dd9.exe
2004	aa5e6ad5e69f11766d24586fd67c0ff88169c75314607b7072bff239d74c2dd9.exe
2004	aa5e6ad5e69f11766d24586fd67c0ff88169c75314607b7072bff239d74c2dd9.exe

Suspicious use of AdjustPrivilegeToken 26 IoCs

Processes:

aa5e6ad5e69f11766d24586fd67c0ff88169c75314607b7072bff239d74c2dd9.exenotepad .exe

description	pid	process
Token: SeDebugPrivilege	2004	aa5e6ad5e69f11766d24586fd67c0ff88169c75314607b7072bff239d74c2dd9.exe
Token: 33	2004	aa5e6ad5e69f11766d24586fd67c0ff88169c75314607b7072bff239d74c2dd9.exe
Token: SeIncBasePriorityPrivilege	2004	aa5e6ad5e69f11766d24586fd67c0ff88169c75314607b7072bff239d74c2dd9.exe
Token: SeIncreaseQuotaPrivilege	864	notepad .exe
Token: SeSecurityPrivilege	864	notepad .exe
Token: SeTakeOwnershipPrivilege	864	notepad .exe
Token: SeLoadDriverPrivilege	864	notepad .exe
Token: SeSystemProfilePrivilege	864	notepad .exe
Token: SeSystemtimePrivilege	864	notepad .exe
Token: SeProfSingleProcessPrivilege	864	notepad .exe
Token: SeIncBasePriorityPrivilege	864	notepad .exe
Token: SeCreatePagefilePrivilege	864	notepad .exe
Token: SeBackupPrivilege	864	notepad .exe
Token: SeRestorePrivilege	864	notepad .exe
Token: SeShutdownPrivilege	864	notepad .exe
Token: SeDebugPrivilege	864	notepad .exe
Token: SeSystemEnvironmentPrivilege	864	notepad .exe
Token: SeChangeNotifyPrivilege	864	notepad .exe
Token: SeRemoteShutdownPrivilege	864	notepad .exe
Token: SeUndockPrivilege	864	notepad .exe
Token: SeManageVolumePrivilege	864	notepad .exe
Token: SeImpersonatePrivilege	864	notepad .exe
Token: SeCreateGlobalPrivilege	864	notepad .exe
Token: 33	864	notepad .exe
Token: 34	864	notepad .exe
Token: 35	864	notepad .exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

notepad .exe

pid process

864 notepad .exe

pid	process
864	notepad .exe

Suspicious use of WriteProcessMemory 51 IoCs

Processes:

aa5e6ad5e69f11766d24586fd67c0ff88169c75314607b7072bff239d74c2dd9.execmd.exewscript.exenotepad .execmd.exe

description	pid	process	target process
PID 2004 wrote to memory of 272	2004	aa5e6ad5e69f11766d24586fd67c0ff88169c75314607b7072bff239d74c2dd9.exe	cmd.exe
PID 2004 wrote to memory of 272	2004	aa5e6ad5e69f11766d24586fd67c0ff88169c75314607b7072bff239d74c2dd9.exe	cmd.exe
PID 2004 wrote to memory of 272	2004	aa5e6ad5e69f11766d24586fd67c0ff88169c75314607b7072bff239d74c2dd9.exe	cmd.exe
PID 2004 wrote to memory of 272	2004	aa5e6ad5e69f11766d24586fd67c0ff88169c75314607b7072bff239d74c2dd9.exe	cmd.exe
PID 272 wrote to memory of 1724	272	cmd.exe	wscript.exe
PID 272 wrote to memory of 1724	272	cmd.exe	wscript.exe
PID 272 wrote to memory of 1724	272	cmd.exe	wscript.exe
PID 272 wrote to memory of 1724	272	cmd.exe	wscript.exe
PID 2004 wrote to memory of 864	2004	aa5e6ad5e69f11766d24586fd67c0ff88169c75314607b7072bff239d74c2dd9.exe	notepad .exe
PID 2004 wrote to memory of 864	2004	aa5e6ad5e69f11766d24586fd67c0ff88169c75314607b7072bff239d74c2dd9.exe	notepad .exe
PID 2004 wrote to memory of 864	2004	aa5e6ad5e69f11766d24586fd67c0ff88169c75314607b7072bff239d74c2dd9.exe	notepad .exe
PID 2004 wrote to memory of 864	2004	aa5e6ad5e69f11766d24586fd67c0ff88169c75314607b7072bff239d74c2dd9.exe	notepad .exe
PID 2004 wrote to memory of 864	2004	aa5e6ad5e69f11766d24586fd67c0ff88169c75314607b7072bff239d74c2dd9.exe	notepad .exe
PID 2004 wrote to memory of 864	2004	aa5e6ad5e69f11766d24586fd67c0ff88169c75314607b7072bff239d74c2dd9.exe	notepad .exe
PID 2004 wrote to memory of 864	2004	aa5e6ad5e69f11766d24586fd67c0ff88169c75314607b7072bff239d74c2dd9.exe	notepad .exe
PID 2004 wrote to memory of 864	2004	aa5e6ad5e69f11766d24586fd67c0ff88169c75314607b7072bff239d74c2dd9.exe	notepad .exe
PID 1724 wrote to memory of 1704	1724	wscript.exe	cmd.exe
PID 1724 wrote to memory of 1704	1724	wscript.exe	cmd.exe
PID 1724 wrote to memory of 1704	1724	wscript.exe	cmd.exe
PID 1724 wrote to memory of 1704	1724	wscript.exe	cmd.exe
PID 864 wrote to memory of 880	864	notepad .exe	notepad.exe
PID 864 wrote to memory of 880	864	notepad .exe	notepad.exe
PID 864 wrote to memory of 880	864	notepad .exe	notepad.exe
PID 864 wrote to memory of 880	864	notepad .exe	notepad.exe
PID 864 wrote to memory of 880	864	notepad .exe	notepad.exe
PID 864 wrote to memory of 880	864	notepad .exe	notepad.exe
PID 864 wrote to memory of 880	864	notepad .exe	notepad.exe
PID 864 wrote to memory of 880	864	notepad .exe	notepad.exe
PID 864 wrote to memory of 880	864	notepad .exe	notepad.exe
PID 864 wrote to memory of 880	864	notepad .exe	notepad.exe
PID 864 wrote to memory of 880	864	notepad .exe	notepad.exe
PID 864 wrote to memory of 880	864	notepad .exe	notepad.exe
PID 864 wrote to memory of 880	864	notepad .exe	notepad.exe
PID 864 wrote to memory of 880	864	notepad .exe	notepad.exe
PID 864 wrote to memory of 880	864	notepad .exe	notepad.exe
PID 864 wrote to memory of 880	864	notepad .exe	notepad.exe
PID 864 wrote to memory of 880	864	notepad .exe	notepad.exe
PID 864 wrote to memory of 880	864	notepad .exe	notepad.exe
PID 864 wrote to memory of 880	864	notepad .exe	notepad.exe
PID 864 wrote to memory of 880	864	notepad .exe	notepad.exe
PID 864 wrote to memory of 880	864	notepad .exe	notepad.exe
PID 864 wrote to memory of 880	864	notepad .exe	notepad.exe
PID 864 wrote to memory of 880	864	notepad .exe	notepad.exe
PID 2004 wrote to memory of 456	2004	aa5e6ad5e69f11766d24586fd67c0ff88169c75314607b7072bff239d74c2dd9.exe	cmd.exe
PID 2004 wrote to memory of 456	2004	aa5e6ad5e69f11766d24586fd67c0ff88169c75314607b7072bff239d74c2dd9.exe	cmd.exe
PID 2004 wrote to memory of 456	2004	aa5e6ad5e69f11766d24586fd67c0ff88169c75314607b7072bff239d74c2dd9.exe	cmd.exe
PID 2004 wrote to memory of 456	2004	aa5e6ad5e69f11766d24586fd67c0ff88169c75314607b7072bff239d74c2dd9.exe	cmd.exe
PID 456 wrote to memory of 472	456	cmd.exe	timeout.exe
PID 456 wrote to memory of 472	456	cmd.exe	timeout.exe
PID 456 wrote to memory of 472	456	cmd.exe	timeout.exe
PID 456 wrote to memory of 472	456	cmd.exe	timeout.exe

C:\Users\Admin\AppData\Local\Temp\aa5e6ad5e69f11766d24586fd67c0ff88169c75314607b7072bff239d74c2dd9.exe
"C:\Users\Admin\AppData\Local\Temp\aa5e6ad5e69f11766d24586fd67c0ff88169c75314607b7072bff239d74c2dd9.exe"
1⤵
- Modifies WinLogon for persistence
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2004
- C:\Windows\SysWOW64\cmd.exe
  cmd /c C:\Users\Admin\AppData\Local\Temp\\mata.bat
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:272
- - C:\Windows\SysWOW64\wscript.exe
    wscript.exe "C:\Users\Admin\AppData\Local\Temp\invs.vbs" "C:\Users\Admin\AppData\Local\Temp\mata2.bat
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1724
  - - C:\Windows\SysWOW64\cmd.exe
      cmd /c ""C:\Users\Admin\AppData\Local\Temp\mata2.bat" "
      4⤵
      PID:1704
- C:\Users\Admin\AppData\Local\Temp\notepad .exe
  "C:\Users\Admin\AppData\Local\Temp\notepad .exe"
  2⤵
  - Modifies WinLogon for persistence
  - Executes dropped EXE
  - Adds Run key to start application
  - NTFS ADS
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:864
- - C:\Windows\SysWOW64\notepad.exe
    notepad
    3⤵
    PID:880
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\stres.bat" "
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:456
- - C:\Windows\SysWOW64\timeout.exe
    timeout /t 300
    3⤵
    - Delays execution with timeout.exe
    PID:472

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Winlogon Helper DLL

T1004

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\file.exe

Filesize
610KB

MD5
54faf0f26546176482fe0e169246f9ae

SHA1
50349a8aa03861501b3f4c654d4ef5e2595a9c2c

SHA256
aa5e6ad5e69f11766d24586fd67c0ff88169c75314607b7072bff239d74c2dd9

SHA512
aa8fd909f397a411078509e6eb6cea743373979a1ab6bd3f43a0dcfb04633f39e481a54d27da83260692409de75a484180377471c252569f457db32504cd3ff4

Download Submit
C:\Users\Admin\AppData\Local\Temp\invs.vbs

Filesize
78B

MD5
c578d9653b22800c3eb6b6a51219bbb8

SHA1
a97aa251901bbe179a48dbc7a0c1872e163b1f2d

SHA256
20a98a7e6e137bb1b9bd5ef6911a479cb8eac925b80d6db4e70b19f62a40cce2

SHA512
3ae6dc8f02d1a78e1235a0782b632972da5a74ab32287cc41aa672d4fa4a9d34bb5fc50eba07b6915f2e61c402927cd5f6feeb7f7602afa2f64e91efb3b7fc4d

Download Submit
C:\Users\Admin\AppData\Local\Temp\mata.bat

Filesize
47B

MD5
58c538a6ae20a3c6031217903cdf8e5d

SHA1
399fd50eadf4945b665877facfc4f53d16e18b1e

SHA256
6bcc0e04d9bc32209d90a65c320dc6363e523dd94b38b17bcdc5b980b6405f53

SHA512
c01828a5390fec3443e19d317137ae873de77c7737db7802650430e6a0a1edbd3aabe362903243b372536418fbd8482c2a6efd122d853744a41ade567956c359

Download Submit
C:\Users\Admin\AppData\Local\Temp\mata2.bat

Filesize
47B

MD5
095b2908ae8b2e0e3704c0163f26e283

SHA1
3429b6c1421d448c98c1da9625badcea2484a521

SHA256
22b182644ab28f5e9e17b5a03ba404d09b02da367146b80484584adc842a3ed1

SHA512
e22e379b4f0d8e11fa7c29c3297a3e24a533fb08895d18e9bb27e8cab84da1dd52ff437aca90c5c32a9bdb578b3c1bfb3ff42d3bc2c5951ffeb5941c8286c731

Download Submit
C:\Users\Admin\AppData\Local\Temp\notepad .exe

Filesize
31KB

MD5
ed797d8dc2c92401985d162e42ffa450

SHA1
0f02fc517c7facc4baefde4fe9467fb6488ebabe

SHA256
b746362010a101cb5931bc066f0f4d3fc740c02a68c1f37fc3c8e6c87fd7cb1e

SHA512
e831a6ff987f3ef29982da16afad06938b68eddd43c234ba88d1c96a1b5547f2284baf35cbb3a5bfd75e7f0445d14daa014e0ba00b4db72c67f83f0a314c80c2

Download Submit
C:\Users\Admin\AppData\Local\Temp\notepad .exe

Filesize
31KB

MD5
ed797d8dc2c92401985d162e42ffa450

SHA1
0f02fc517c7facc4baefde4fe9467fb6488ebabe

SHA256
b746362010a101cb5931bc066f0f4d3fc740c02a68c1f37fc3c8e6c87fd7cb1e

SHA512
e831a6ff987f3ef29982da16afad06938b68eddd43c234ba88d1c96a1b5547f2284baf35cbb3a5bfd75e7f0445d14daa014e0ba00b4db72c67f83f0a314c80c2

Download Submit
C:\Users\Admin\AppData\Local\Temp\rundll11-.txt

Filesize
610KB

MD5
54faf0f26546176482fe0e169246f9ae

SHA1
50349a8aa03861501b3f4c654d4ef5e2595a9c2c

SHA256
aa5e6ad5e69f11766d24586fd67c0ff88169c75314607b7072bff239d74c2dd9

SHA512
aa8fd909f397a411078509e6eb6cea743373979a1ab6bd3f43a0dcfb04633f39e481a54d27da83260692409de75a484180377471c252569f457db32504cd3ff4

Download Submit
C:\Users\Admin\AppData\Local\Temp\stres.bat

Filesize
200B

MD5
fc10f5325d4bf4be8eaac50c0a463469

SHA1
54d4daf129d17abf8284835017865f99c70ffe22

SHA256
acf2946adf8e613c5f2d776863f844b9572fc580eb4d9324f285d1bb3844e70e

SHA512
ae3ba84843312be74fda36615bd476f7b6aec5223cc0dbb183d42a57c27a8d2a6545f5273866ded6d3e3c31ef640724c74c0f47992c1c825f6f2e56ab5160490

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

Filesize
31KB

MD5
ed797d8dc2c92401985d162e42ffa450

SHA1
0f02fc517c7facc4baefde4fe9467fb6488ebabe

SHA256
b746362010a101cb5931bc066f0f4d3fc740c02a68c1f37fc3c8e6c87fd7cb1e

SHA512
e831a6ff987f3ef29982da16afad06938b68eddd43c234ba88d1c96a1b5547f2284baf35cbb3a5bfd75e7f0445d14daa014e0ba00b4db72c67f83f0a314c80c2

Download Submit
memory/272-55-0x0000000000000000-mapping.dmp

Download
memory/456-82-0x0000000000000000-mapping.dmp

Download
memory/472-85-0x0000000000000000-mapping.dmp

Download
memory/864-69-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/864-65-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/864-61-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/864-80-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/864-71-0x00000000004B57C0-mapping.dmp

Download
memory/864-73-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/864-75-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/864-76-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/864-60-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/864-81-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/880-78-0x0000000000000000-mapping.dmp

Download
memory/1704-67-0x0000000000000000-mapping.dmp

Download
memory/1724-58-0x0000000000000000-mapping.dmp

Download
memory/2004-54-0x0000000075811000-0x0000000075813000-memory.dmp

Filesize
8KB

Download
memory/2004-70-0x0000000074110000-0x00000000746BB000-memory.dmp

Filesize
5.7MB

Download
memory/2004-57-0x0000000074110000-0x00000000746BB000-memory.dmp

Filesize
5.7MB

Download
memory/2004-86-0x0000000074110000-0x00000000746BB000-memory.dmp

Filesize
5.7MB

Download