darkcomet | e90ca728909e0e62fd446a28cdce4e6a79fb996e1f8b9606b3a78f9e83b30f8c

Analysis

max time kernel
150s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
05-12-2024 03:53

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

e90ca728909e0e62fd446a28cdce4e6a79fb996e1f8b9606b3a78f9e83b30f8c.exe
Size

646KB
MD5

fa6428558332c81e824ca1a3059fe20e
SHA1

40d6d7bfbfe07dd803dcebc2f10acc1c723d02a4
SHA256

e90ca728909e0e62fd446a28cdce4e6a79fb996e1f8b9606b3a78f9e83b30f8c
SHA512

e8cd0094c8b36dfa703831344e49e677e69b0893d83053bc0cfd0ad48412fb7e17cab765fa890cbacd06c3755004cf8b70c52cdf2a64c224784fed49bef9a49c
SSDEEP

12288:DontLrfz9mbSYnn0Z6c5l0HlopyExvQKqdo2RuSZkDkxflL0GblLRncGYJ5:DonNzzMSwn0Z6c5iFoplBTqdo2RdWDku

Score

10^/10

darkcomet dc discovery evasion persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

127.0.0.1:9595

127.0.0.1:3737

zerocoolz.no-ip.biz:3737

zerocoolz.no-ip.biz:9595

Mutex

DC_MUTEX-VVL51CM

Attributes

InstallPath
C:\Program Files\CCleaner\CCleaner-resident.exe
gencode
m1KNJyvLwmtD
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
Darkcomet family
darkcomet

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\Program Files\\CCleaner\\CCleaner-resident.exe"	e90ca728909e0e62fd446a28cdce4e6a79fb996e1f8b9606b3a78f9e83b30f8c.exe

Sets file to hidden 1 TTPs 1 IoCs

Modifies file attributes to stop it showing in Explorer etc.

evasion

Hidden Files and Directories

T1564.001

pid	Process
1364	attrib.exe

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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation	e90ca728909e0e62fd446a28cdce4e6a79fb996e1f8b9606b3a78f9e83b30f8c.exe

Executes dropped EXE 1 IoCs

pid	Process
4628	CCleaner-resident.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\CCleaner Resident Cleaner Service = "C:\\Program Files\\CCleaner\\CCleaner-resident.exe"	e90ca728909e0e62fd446a28cdce4e6a79fb996e1f8b9606b3a78f9e83b30f8c.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\CCleaner Resident Cleaner Service = "C:\\Program Files\\CCleaner\\CCleaner-resident.exe"	CCleaner-resident.exe

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File created	C:\Program Files\CCleaner\CCleaner-resident.exe	e90ca728909e0e62fd446a28cdce4e6a79fb996e1f8b9606b3a78f9e83b30f8c.exe
File opened for modification	C:\Program Files\CCleaner\CCleaner-resident.exe	e90ca728909e0e62fd446a28cdce4e6a79fb996e1f8b9606b3a78f9e83b30f8c.exe
File opened for modification	C:\Program Files\CCleaner\	e90ca728909e0e62fd446a28cdce4e6a79fb996e1f8b9606b3a78f9e83b30f8c.exe

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 5 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	e90ca728909e0e62fd446a28cdce4e6a79fb996e1f8b9606b3a78f9e83b30f8c.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	attrib.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	CCleaner-resident.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	notepad.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	e90ca728909e0e62fd446a28cdce4e6a79fb996e1f8b9606b3a78f9e83b30f8c.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	4384	e90ca728909e0e62fd446a28cdce4e6a79fb996e1f8b9606b3a78f9e83b30f8c.exe
Token: SeSecurityPrivilege	4384	e90ca728909e0e62fd446a28cdce4e6a79fb996e1f8b9606b3a78f9e83b30f8c.exe
Token: SeTakeOwnershipPrivilege	4384	e90ca728909e0e62fd446a28cdce4e6a79fb996e1f8b9606b3a78f9e83b30f8c.exe
Token: SeLoadDriverPrivilege	4384	e90ca728909e0e62fd446a28cdce4e6a79fb996e1f8b9606b3a78f9e83b30f8c.exe
Token: SeSystemProfilePrivilege	4384	e90ca728909e0e62fd446a28cdce4e6a79fb996e1f8b9606b3a78f9e83b30f8c.exe
Token: SeSystemtimePrivilege	4384	e90ca728909e0e62fd446a28cdce4e6a79fb996e1f8b9606b3a78f9e83b30f8c.exe
Token: SeProfSingleProcessPrivilege	4384	e90ca728909e0e62fd446a28cdce4e6a79fb996e1f8b9606b3a78f9e83b30f8c.exe
Token: SeIncBasePriorityPrivilege	4384	e90ca728909e0e62fd446a28cdce4e6a79fb996e1f8b9606b3a78f9e83b30f8c.exe
Token: SeCreatePagefilePrivilege	4384	e90ca728909e0e62fd446a28cdce4e6a79fb996e1f8b9606b3a78f9e83b30f8c.exe
Token: SeBackupPrivilege	4384	e90ca728909e0e62fd446a28cdce4e6a79fb996e1f8b9606b3a78f9e83b30f8c.exe
Token: SeRestorePrivilege	4384	e90ca728909e0e62fd446a28cdce4e6a79fb996e1f8b9606b3a78f9e83b30f8c.exe
Token: SeShutdownPrivilege	4384	e90ca728909e0e62fd446a28cdce4e6a79fb996e1f8b9606b3a78f9e83b30f8c.exe
Token: SeDebugPrivilege	4384	e90ca728909e0e62fd446a28cdce4e6a79fb996e1f8b9606b3a78f9e83b30f8c.exe
Token: SeSystemEnvironmentPrivilege	4384	e90ca728909e0e62fd446a28cdce4e6a79fb996e1f8b9606b3a78f9e83b30f8c.exe
Token: SeChangeNotifyPrivilege	4384	e90ca728909e0e62fd446a28cdce4e6a79fb996e1f8b9606b3a78f9e83b30f8c.exe
Token: SeRemoteShutdownPrivilege	4384	e90ca728909e0e62fd446a28cdce4e6a79fb996e1f8b9606b3a78f9e83b30f8c.exe
Token: SeUndockPrivilege	4384	e90ca728909e0e62fd446a28cdce4e6a79fb996e1f8b9606b3a78f9e83b30f8c.exe
Token: SeManageVolumePrivilege	4384	e90ca728909e0e62fd446a28cdce4e6a79fb996e1f8b9606b3a78f9e83b30f8c.exe
Token: SeImpersonatePrivilege	4384	e90ca728909e0e62fd446a28cdce4e6a79fb996e1f8b9606b3a78f9e83b30f8c.exe
Token: SeCreateGlobalPrivilege	4384	e90ca728909e0e62fd446a28cdce4e6a79fb996e1f8b9606b3a78f9e83b30f8c.exe
Token: 33	4384	e90ca728909e0e62fd446a28cdce4e6a79fb996e1f8b9606b3a78f9e83b30f8c.exe
Token: 34	4384	e90ca728909e0e62fd446a28cdce4e6a79fb996e1f8b9606b3a78f9e83b30f8c.exe
Token: 35	4384	e90ca728909e0e62fd446a28cdce4e6a79fb996e1f8b9606b3a78f9e83b30f8c.exe
Token: 36	4384	e90ca728909e0e62fd446a28cdce4e6a79fb996e1f8b9606b3a78f9e83b30f8c.exe
Token: SeIncreaseQuotaPrivilege	4628	CCleaner-resident.exe
Token: SeSecurityPrivilege	4628	CCleaner-resident.exe
Token: SeTakeOwnershipPrivilege	4628	CCleaner-resident.exe
Token: SeLoadDriverPrivilege	4628	CCleaner-resident.exe
Token: SeSystemProfilePrivilege	4628	CCleaner-resident.exe
Token: SeSystemtimePrivilege	4628	CCleaner-resident.exe
Token: SeProfSingleProcessPrivilege	4628	CCleaner-resident.exe
Token: SeIncBasePriorityPrivilege	4628	CCleaner-resident.exe
Token: SeCreatePagefilePrivilege	4628	CCleaner-resident.exe
Token: SeBackupPrivilege	4628	CCleaner-resident.exe
Token: SeRestorePrivilege	4628	CCleaner-resident.exe
Token: SeShutdownPrivilege	4628	CCleaner-resident.exe
Token: SeDebugPrivilege	4628	CCleaner-resident.exe
Token: SeSystemEnvironmentPrivilege	4628	CCleaner-resident.exe
Token: SeChangeNotifyPrivilege	4628	CCleaner-resident.exe
Token: SeRemoteShutdownPrivilege	4628	CCleaner-resident.exe
Token: SeUndockPrivilege	4628	CCleaner-resident.exe
Token: SeManageVolumePrivilege	4628	CCleaner-resident.exe
Token: SeImpersonatePrivilege	4628	CCleaner-resident.exe
Token: SeCreateGlobalPrivilege	4628	CCleaner-resident.exe
Token: 33	4628	CCleaner-resident.exe
Token: 34	4628	CCleaner-resident.exe
Token: 35	4628	CCleaner-resident.exe
Token: 36	4628	CCleaner-resident.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4628	CCleaner-resident.exe

Suspicious use of WriteProcessMemory 31 IoCs

description	pid	Process	procid_target
PID 4384 wrote to memory of 2284	4384	e90ca728909e0e62fd446a28cdce4e6a79fb996e1f8b9606b3a78f9e83b30f8c.exe	90
PID 4384 wrote to memory of 2284	4384	e90ca728909e0e62fd446a28cdce4e6a79fb996e1f8b9606b3a78f9e83b30f8c.exe	90
PID 4384 wrote to memory of 2284	4384	e90ca728909e0e62fd446a28cdce4e6a79fb996e1f8b9606b3a78f9e83b30f8c.exe	90
PID 2284 wrote to memory of 1364	2284	cmd.exe	92
PID 2284 wrote to memory of 1364	2284	cmd.exe	92
PID 2284 wrote to memory of 1364	2284	cmd.exe	92
PID 4384 wrote to memory of 4628	4384	e90ca728909e0e62fd446a28cdce4e6a79fb996e1f8b9606b3a78f9e83b30f8c.exe	93
PID 4384 wrote to memory of 4628	4384	e90ca728909e0e62fd446a28cdce4e6a79fb996e1f8b9606b3a78f9e83b30f8c.exe	93
PID 4384 wrote to memory of 4628	4384	e90ca728909e0e62fd446a28cdce4e6a79fb996e1f8b9606b3a78f9e83b30f8c.exe	93
PID 4628 wrote to memory of 3168	4628	CCleaner-resident.exe	94
PID 4628 wrote to memory of 3168	4628	CCleaner-resident.exe	94
PID 4628 wrote to memory of 3168	4628	CCleaner-resident.exe	94
PID 4628 wrote to memory of 3168	4628	CCleaner-resident.exe	94
PID 4628 wrote to memory of 3168	4628	CCleaner-resident.exe	94
PID 4628 wrote to memory of 3168	4628	CCleaner-resident.exe	94
PID 4628 wrote to memory of 3168	4628	CCleaner-resident.exe	94
PID 4628 wrote to memory of 3168	4628	CCleaner-resident.exe	94
PID 4628 wrote to memory of 3168	4628	CCleaner-resident.exe	94
PID 4628 wrote to memory of 3168	4628	CCleaner-resident.exe	94
PID 4628 wrote to memory of 3168	4628	CCleaner-resident.exe	94
PID 4628 wrote to memory of 3168	4628	CCleaner-resident.exe	94
PID 4628 wrote to memory of 3168	4628	CCleaner-resident.exe	94
PID 4628 wrote to memory of 3168	4628	CCleaner-resident.exe	94
PID 4628 wrote to memory of 3168	4628	CCleaner-resident.exe	94
PID 4628 wrote to memory of 3168	4628	CCleaner-resident.exe	94
PID 4628 wrote to memory of 3168	4628	CCleaner-resident.exe	94
PID 4628 wrote to memory of 3168	4628	CCleaner-resident.exe	94
PID 4628 wrote to memory of 3168	4628	CCleaner-resident.exe	94
PID 4628 wrote to memory of 3168	4628	CCleaner-resident.exe	94
PID 4628 wrote to memory of 3168	4628	CCleaner-resident.exe	94
PID 4628 wrote to memory of 3168	4628	CCleaner-resident.exe	94

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
1364	attrib.exe

C:\Users\Admin\AppData\Local\Temp\e90ca728909e0e62fd446a28cdce4e6a79fb996e1f8b9606b3a78f9e83b30f8c.exe
"C:\Users\Admin\AppData\Local\Temp\e90ca728909e0e62fd446a28cdce4e6a79fb996e1f8b9606b3a78f9e83b30f8c.exe"
1⤵
- Modifies WinLogon for persistence
- Checks computer location settings
- Adds Run key to start application
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4384
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\e90ca728909e0e62fd446a28cdce4e6a79fb996e1f8b9606b3a78f9e83b30f8c.exe" +s +h
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2284
- - C:\Windows\SysWOW64\attrib.exe
    attrib "C:\Users\Admin\AppData\Local\Temp\e90ca728909e0e62fd446a28cdce4e6a79fb996e1f8b9606b3a78f9e83b30f8c.exe" +s +h
    3⤵
    - Sets file to hidden
    - System Location Discovery: System Language Discovery
    - Views/modifies file attributes
    PID:1364
- C:\Program Files\CCleaner\CCleaner-resident.exe
  "C:\Program Files\CCleaner\CCleaner-resident.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4628
- - C:\Windows\SysWOW64\notepad.exe
    notepad
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3168

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Defense Evasion

Hide Artifacts

T1564

Hidden Files and Directories

T1564.001

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Program Files\CCleaner\CCleaner-resident.exe

Filesize
646KB

MD5
fa6428558332c81e824ca1a3059fe20e

SHA1
40d6d7bfbfe07dd803dcebc2f10acc1c723d02a4

SHA256
e90ca728909e0e62fd446a28cdce4e6a79fb996e1f8b9606b3a78f9e83b30f8c

SHA512
e8cd0094c8b36dfa703831344e49e677e69b0893d83053bc0cfd0ad48412fb7e17cab765fa890cbacd06c3755004cf8b70c52cdf2a64c224784fed49bef9a49c

Download Submit
memory/3168-41-0x0000000001000000-0x0000000001001000-memory.dmp

Filesize
4KB

Download
memory/4384-1-0x0000000000400000-0x000000000055E000-memory.dmp

Filesize
1.4MB

Download
memory/4384-2-0x0000000000400000-0x000000000055E000-memory.dmp

Filesize
1.4MB

Download
memory/4384-21-0x0000000000400000-0x000000000055E000-memory.dmp

Filesize
1.4MB

Download
memory/4384-38-0x0000000000400000-0x000000000055E000-memory.dmp

Filesize
1.4MB

Download
memory/4384-0-0x0000000000400000-0x000000000055E000-memory.dmp

Filesize
1.4MB

Download
memory/4628-46-0x0000000000400000-0x000000000055E000-memory.dmp

Filesize
1.4MB

Download
memory/4628-50-0x0000000000400000-0x000000000055E000-memory.dmp

Filesize
1.4MB

Download
memory/4628-43-0x0000000000400000-0x000000000055E000-memory.dmp

Filesize
1.4MB

Download
memory/4628-44-0x0000000000400000-0x000000000055E000-memory.dmp

Filesize
1.4MB

Download
memory/4628-45-0x0000000000400000-0x000000000055E000-memory.dmp

Filesize
1.4MB

Download
memory/4628-39-0x0000000000400000-0x000000000055E000-memory.dmp

Filesize
1.4MB

Download
memory/4628-47-0x0000000000400000-0x000000000055E000-memory.dmp

Filesize
1.4MB

Download
memory/4628-48-0x0000000000400000-0x000000000055E000-memory.dmp

Filesize
1.4MB

Download
memory/4628-49-0x0000000000400000-0x000000000055E000-memory.dmp

Filesize
1.4MB

Download
memory/4628-40-0x0000000000400000-0x000000000055E000-memory.dmp

Filesize
1.4MB

Download
memory/4628-51-0x0000000000400000-0x000000000055E000-memory.dmp

Filesize
1.4MB

Download
memory/4628-52-0x0000000000400000-0x000000000055E000-memory.dmp

Filesize
1.4MB

Download
memory/4628-53-0x0000000000400000-0x000000000055E000-memory.dmp

Filesize
1.4MB

Download
memory/4628-54-0x0000000000400000-0x000000000055E000-memory.dmp

Filesize
1.4MB

Download
memory/4628-55-0x0000000000400000-0x000000000055E000-memory.dmp

Filesize
1.4MB

Download
memory/4628-56-0x0000000000400000-0x000000000055E000-memory.dmp

Filesize
1.4MB

Download
memory/4628-57-0x0000000000400000-0x000000000055E000-memory.dmp

Filesize
1.4MB

Download
memory/4628-59-0x0000000000400000-0x000000000055E000-memory.dmp

Filesize
1.4MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads