darkcomet | dd854470625e083c3c2c03f54b0298d9f1afdbf2b6ada4eba2cf75178a33ec48

Analysis

max time kernel
150s
max time network
19s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
03-01-2025 06:09

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General

Target

yara_detected/052.exe
Size

658KB
MD5

1e4cdaa0c4bf86ac72df643b9018b8c3
SHA1

917bf5cef2a0b9271bff23697448e8ee8053e61c
SHA256

3993c59cfb6caa6deea45db128f89f8753ab4f6bf1354d1390a577a9ddc2fe2d
SHA512

acfe4d64631ddcd58cf7bfadc48c01ac692251fcfc2158156531d8f5d7568f4997b460a47f2ce14dea991d5f2e5fb3a7a618d44a3106053405dc4915f292fed0
SSDEEP

12288:e9HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9Ek5C/hU:qZ1xuVVjfFoynPaVBUR8f+kN10EB2

Score

10^/10

darkcomet guest16 discovery persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

flewsetup.no-ip.org:1337

Mutex

DC_MUTEX-Q4E6AA1

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
c8QGBueWDoVg
install
true
offline_keylogger
true
password
memorylane12
persistence
true
reg_key
MicroUpdate

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:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	052.exe

Executes dropped EXE 1 IoCs

pid	Process
2852	msdcsc.exe

Loads dropped DLL 2 IoCs

pid	Process
3000	052.exe
3000	052.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-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	052.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	msdcsc.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 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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	052.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msdcsc.exe

Suspicious use of AdjustPrivilegeToken 46 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	3000	052.exe
Token: SeSecurityPrivilege	3000	052.exe
Token: SeTakeOwnershipPrivilege	3000	052.exe
Token: SeLoadDriverPrivilege	3000	052.exe
Token: SeSystemProfilePrivilege	3000	052.exe
Token: SeSystemtimePrivilege	3000	052.exe
Token: SeProfSingleProcessPrivilege	3000	052.exe
Token: SeIncBasePriorityPrivilege	3000	052.exe
Token: SeCreatePagefilePrivilege	3000	052.exe
Token: SeBackupPrivilege	3000	052.exe
Token: SeRestorePrivilege	3000	052.exe
Token: SeShutdownPrivilege	3000	052.exe
Token: SeDebugPrivilege	3000	052.exe
Token: SeSystemEnvironmentPrivilege	3000	052.exe
Token: SeChangeNotifyPrivilege	3000	052.exe
Token: SeRemoteShutdownPrivilege	3000	052.exe
Token: SeUndockPrivilege	3000	052.exe
Token: SeManageVolumePrivilege	3000	052.exe
Token: SeImpersonatePrivilege	3000	052.exe
Token: SeCreateGlobalPrivilege	3000	052.exe
Token: 33	3000	052.exe
Token: 34	3000	052.exe
Token: 35	3000	052.exe
Token: SeIncreaseQuotaPrivilege	2852	msdcsc.exe
Token: SeSecurityPrivilege	2852	msdcsc.exe
Token: SeTakeOwnershipPrivilege	2852	msdcsc.exe
Token: SeLoadDriverPrivilege	2852	msdcsc.exe
Token: SeSystemProfilePrivilege	2852	msdcsc.exe
Token: SeSystemtimePrivilege	2852	msdcsc.exe
Token: SeProfSingleProcessPrivilege	2852	msdcsc.exe
Token: SeIncBasePriorityPrivilege	2852	msdcsc.exe
Token: SeCreatePagefilePrivilege	2852	msdcsc.exe
Token: SeBackupPrivilege	2852	msdcsc.exe
Token: SeRestorePrivilege	2852	msdcsc.exe
Token: SeShutdownPrivilege	2852	msdcsc.exe
Token: SeDebugPrivilege	2852	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	2852	msdcsc.exe
Token: SeChangeNotifyPrivilege	2852	msdcsc.exe
Token: SeRemoteShutdownPrivilege	2852	msdcsc.exe
Token: SeUndockPrivilege	2852	msdcsc.exe
Token: SeManageVolumePrivilege	2852	msdcsc.exe
Token: SeImpersonatePrivilege	2852	msdcsc.exe
Token: SeCreateGlobalPrivilege	2852	msdcsc.exe
Token: 33	2852	msdcsc.exe
Token: 34	2852	msdcsc.exe
Token: 35	2852	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2852	msdcsc.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 3000 wrote to memory of 2852	3000	052.exe	30
PID 3000 wrote to memory of 2852	3000	052.exe	30
PID 3000 wrote to memory of 2852	3000	052.exe	30
PID 3000 wrote to memory of 2852	3000	052.exe	30

C:\Users\Admin\AppData\Local\Temp\yara_detected\052.exe
"C:\Users\Admin\AppData\Local\Temp\yara_detected\052.exe"
1⤵
- Modifies WinLogon for persistence
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3000
- C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
  "C:\Users\Admin\Documents\MSDCSC\msdcsc.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
  PID:2852

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

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\Documents\MSDCSC\msdcsc.exe

Filesize
658KB

MD5
1e4cdaa0c4bf86ac72df643b9018b8c3

SHA1
917bf5cef2a0b9271bff23697448e8ee8053e61c

SHA256
3993c59cfb6caa6deea45db128f89f8753ab4f6bf1354d1390a577a9ddc2fe2d

SHA512
acfe4d64631ddcd58cf7bfadc48c01ac692251fcfc2158156531d8f5d7568f4997b460a47f2ce14dea991d5f2e5fb3a7a618d44a3106053405dc4915f292fed0

Download Submit
memory/2852-18-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2852-17-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2852-13-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2852-14-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2852-19-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2852-16-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2852-26-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2852-25-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2852-15-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2852-20-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2852-21-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2852-22-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2852-23-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2852-24-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/3000-0-0x0000000000240000-0x0000000000241000-memory.dmp

Filesize
4KB

Download
memory/3000-12-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads