darkcomet | 96f5c3b4b81378a06491ff6ee82ab71af01e85a8bea12bef2d49a1d083262198

General

Target

96f5c3b4b81378a06491ff6ee82ab71af01e85a8bea12bef2d49a1d083262198.exe
Size

1.3MB
MD5

5c81162aa56ef2d826fb9568067b1ba3
SHA1

52a1dfb2f44c721b5e788df50b255759c7d3b72e
SHA256

96f5c3b4b81378a06491ff6ee82ab71af01e85a8bea12bef2d49a1d083262198
SHA512

7dc2660161712176d9de1fb2b6f0cf92d031ff85f1ebf805652d2389e57c96541e55eae18cb477ebf07fa0545df9825ceabc97b07180c5e3d1bfac491c5e6b2b
SSDEEP

24576:GfZc4o2V3KorcRP87KdMYWtahGjjd/isDIPW:Gf+4o2YorU8umYYaUjjd/nDIPW

Score

10^/10

darkcomet azuka persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

azuka

C2

azuka419.ddns.net:10001

Mutex

DC_MUTEX-24QP7RP

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
HPdfeX0hFstf
install
true
offline_keylogger
true
persistence
true
reg_key
MicroUpdate

Signatures

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

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1004

Modify Registry

T1112

Processes:

Wan.exe

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"	Wan.exe

Executes dropped EXE 5 IoCs

Processes:

Wan.exeWan.exemsdcsc.exeWan.exeWan.exe

pid process

4268 Wan.exe
3748 Wan.exe
2016 msdcsc.exe
4508 Wan.exe
4072 Wan.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

Processes:

Wan.exe

description ioc process

Key value queried \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation Wan.exe

pid	process
4268	Wan.exe
3748	Wan.exe
2016	msdcsc.exe
4508	Wan.exe
4072	Wan.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation	Wan.exe

Drops startup file 1 IoCs

Processes:

96f5c3b4b81378a06491ff6ee82ab71af01e85a8bea12bef2d49a1d083262198.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Nochfolder.vbs	96f5c3b4b81378a06491ff6ee82ab71af01e85a8bea12bef2d49a1d083262198.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

Wan.exeWan.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	Wan.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	Wan.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 4 IoCs

Processes:

96f5c3b4b81378a06491ff6ee82ab71af01e85a8bea12bef2d49a1d083262198.exeWan.exemsdcsc.exeWan.exe

pid process

3068 96f5c3b4b81378a06491ff6ee82ab71af01e85a8bea12bef2d49a1d083262198.exe
4268 Wan.exe
2016 msdcsc.exe
4508 Wan.exe
Suspicious use of SetThreadContext 2 IoCs

Processes:

Wan.exeWan.exe

description pid process target process

PID 4268 set thread context of 3748 4268 Wan.exe Wan.exe
PID 4508 set thread context of 4072 4508 Wan.exe Wan.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Modifies registry class 1 IoCs

Processes:

Wan.exe

description ioc process

Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\ Wan.exe
Suspicious behavior: GetForegroundWindowSpam 4 IoCs

Processes:

96f5c3b4b81378a06491ff6ee82ab71af01e85a8bea12bef2d49a1d083262198.exeWan.exemsdcsc.exeWan.exe

pid process

3068 96f5c3b4b81378a06491ff6ee82ab71af01e85a8bea12bef2d49a1d083262198.exe
4268 Wan.exe
2016 msdcsc.exe
4508 Wan.exe
Suspicious behavior: MapViewOfSection 4 IoCs

Processes:

Wan.exeWan.exe

pid process

4268 Wan.exe
4268 Wan.exe
4508 Wan.exe
4508 Wan.exe

pid	process
3068	96f5c3b4b81378a06491ff6ee82ab71af01e85a8bea12bef2d49a1d083262198.exe
4268	Wan.exe
2016	msdcsc.exe
4508	Wan.exe

description	pid	process	target process
PID 4268 set thread context of 3748	4268	Wan.exe	Wan.exe
PID 4508 set thread context of 4072	4508	Wan.exe	Wan.exe

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

pid	process
3068	96f5c3b4b81378a06491ff6ee82ab71af01e85a8bea12bef2d49a1d083262198.exe
4268	Wan.exe
2016	msdcsc.exe
4508	Wan.exe

pid	process
4268	Wan.exe
4268	Wan.exe
4508	Wan.exe
4508	Wan.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

Processes:

Wan.exeWan.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	3748	Wan.exe
Token: SeSecurityPrivilege	3748	Wan.exe
Token: SeTakeOwnershipPrivilege	3748	Wan.exe
Token: SeLoadDriverPrivilege	3748	Wan.exe
Token: SeSystemProfilePrivilege	3748	Wan.exe
Token: SeSystemtimePrivilege	3748	Wan.exe
Token: SeProfSingleProcessPrivilege	3748	Wan.exe
Token: SeIncBasePriorityPrivilege	3748	Wan.exe
Token: SeCreatePagefilePrivilege	3748	Wan.exe
Token: SeBackupPrivilege	3748	Wan.exe
Token: SeRestorePrivilege	3748	Wan.exe
Token: SeShutdownPrivilege	3748	Wan.exe
Token: SeDebugPrivilege	3748	Wan.exe
Token: SeSystemEnvironmentPrivilege	3748	Wan.exe
Token: SeChangeNotifyPrivilege	3748	Wan.exe
Token: SeRemoteShutdownPrivilege	3748	Wan.exe
Token: SeUndockPrivilege	3748	Wan.exe
Token: SeManageVolumePrivilege	3748	Wan.exe
Token: SeImpersonatePrivilege	3748	Wan.exe
Token: SeCreateGlobalPrivilege	3748	Wan.exe
Token: 33	3748	Wan.exe
Token: 34	3748	Wan.exe
Token: 35	3748	Wan.exe
Token: 36	3748	Wan.exe
Token: SeIncreaseQuotaPrivilege	4072	Wan.exe
Token: SeSecurityPrivilege	4072	Wan.exe
Token: SeTakeOwnershipPrivilege	4072	Wan.exe
Token: SeLoadDriverPrivilege	4072	Wan.exe
Token: SeSystemProfilePrivilege	4072	Wan.exe
Token: SeSystemtimePrivilege	4072	Wan.exe
Token: SeProfSingleProcessPrivilege	4072	Wan.exe
Token: SeIncBasePriorityPrivilege	4072	Wan.exe
Token: SeCreatePagefilePrivilege	4072	Wan.exe
Token: SeBackupPrivilege	4072	Wan.exe
Token: SeRestorePrivilege	4072	Wan.exe
Token: SeShutdownPrivilege	4072	Wan.exe
Token: SeDebugPrivilege	4072	Wan.exe
Token: SeSystemEnvironmentPrivilege	4072	Wan.exe
Token: SeChangeNotifyPrivilege	4072	Wan.exe
Token: SeRemoteShutdownPrivilege	4072	Wan.exe
Token: SeUndockPrivilege	4072	Wan.exe
Token: SeManageVolumePrivilege	4072	Wan.exe
Token: SeImpersonatePrivilege	4072	Wan.exe
Token: SeCreateGlobalPrivilege	4072	Wan.exe
Token: 33	4072	Wan.exe
Token: 34	4072	Wan.exe
Token: 35	4072	Wan.exe
Token: 36	4072	Wan.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

Wan.exe

pid process

4072 Wan.exe

pid	process
4072	Wan.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

96f5c3b4b81378a06491ff6ee82ab71af01e85a8bea12bef2d49a1d083262198.exeWan.exeWan.exemsdcsc.exeWan.exe

description	pid	process	target process
PID 3068 wrote to memory of 4268	3068	96f5c3b4b81378a06491ff6ee82ab71af01e85a8bea12bef2d49a1d083262198.exe	Wan.exe
PID 3068 wrote to memory of 4268	3068	96f5c3b4b81378a06491ff6ee82ab71af01e85a8bea12bef2d49a1d083262198.exe	Wan.exe
PID 3068 wrote to memory of 4268	3068	96f5c3b4b81378a06491ff6ee82ab71af01e85a8bea12bef2d49a1d083262198.exe	Wan.exe
PID 4268 wrote to memory of 3748	4268	Wan.exe	Wan.exe
PID 4268 wrote to memory of 3748	4268	Wan.exe	Wan.exe
PID 4268 wrote to memory of 3748	4268	Wan.exe	Wan.exe
PID 3748 wrote to memory of 2016	3748	Wan.exe	msdcsc.exe
PID 3748 wrote to memory of 2016	3748	Wan.exe	msdcsc.exe
PID 3748 wrote to memory of 2016	3748	Wan.exe	msdcsc.exe
PID 2016 wrote to memory of 4508	2016	msdcsc.exe	Wan.exe
PID 2016 wrote to memory of 4508	2016	msdcsc.exe	Wan.exe
PID 2016 wrote to memory of 4508	2016	msdcsc.exe	Wan.exe
PID 4508 wrote to memory of 4072	4508	Wan.exe	Wan.exe
PID 4508 wrote to memory of 4072	4508	Wan.exe	Wan.exe
PID 4508 wrote to memory of 4072	4508	Wan.exe	Wan.exe

C:\Users\Admin\AppData\Local\Temp\96f5c3b4b81378a06491ff6ee82ab71af01e85a8bea12bef2d49a1d083262198.exe
"C:\Users\Admin\AppData\Local\Temp\96f5c3b4b81378a06491ff6ee82ab71af01e85a8bea12bef2d49a1d083262198.exe"
1⤵
- Drops startup file
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:3068

C:\Users\Admin\AppData\Roaming\Nochfolder\Wan.exe
"C:\Users\Admin\AppData\Roaming\Nochfolder\Wan.exe"
2⤵
- Executes dropped EXE
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:4268

C:\Users\Admin\AppData\Roaming\Nochfolder\Wan.exe
"C:\Users\Admin\AppData\Roaming\Nochfolder\Wan.exe"
3⤵
- Modifies WinLogon for persistence
- Executes dropped EXE
- Checks computer location settings
- Adds Run key to start application
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3748

C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
"C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
4⤵
- Executes dropped EXE
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:2016

C:\Users\Admin\AppData\Roaming\Nochfolder\Wan.exe
"C:\Users\Admin\AppData\Roaming\Nochfolder\Wan.exe"
5⤵
- Executes dropped EXE
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:4508

C:\Users\Admin\AppData\Roaming\Nochfolder\Wan.exe
"C:\Users\Admin\AppData\Roaming\Nochfolder\Wan.exe"
6⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:4072

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

1

T1004

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\Nochfolder\Wan.exe
Filesize
1.3MB

MD5
5c81162aa56ef2d826fb9568067b1ba3

SHA1
52a1dfb2f44c721b5e788df50b255759c7d3b72e

SHA256
96f5c3b4b81378a06491ff6ee82ab71af01e85a8bea12bef2d49a1d083262198

SHA512
7dc2660161712176d9de1fb2b6f0cf92d031ff85f1ebf805652d2389e57c96541e55eae18cb477ebf07fa0545df9825ceabc97b07180c5e3d1bfac491c5e6b2b

Download Submit
C:\Users\Admin\AppData\Roaming\Nochfolder\Wan.exe
Filesize
1.3MB

MD5
5c81162aa56ef2d826fb9568067b1ba3

SHA1
52a1dfb2f44c721b5e788df50b255759c7d3b72e

SHA256
96f5c3b4b81378a06491ff6ee82ab71af01e85a8bea12bef2d49a1d083262198

SHA512
7dc2660161712176d9de1fb2b6f0cf92d031ff85f1ebf805652d2389e57c96541e55eae18cb477ebf07fa0545df9825ceabc97b07180c5e3d1bfac491c5e6b2b

Download Submit
C:\Users\Admin\AppData\Roaming\Nochfolder\Wan.exe
Filesize
1.3MB

MD5
5c81162aa56ef2d826fb9568067b1ba3

SHA1
52a1dfb2f44c721b5e788df50b255759c7d3b72e

SHA256
96f5c3b4b81378a06491ff6ee82ab71af01e85a8bea12bef2d49a1d083262198

SHA512
7dc2660161712176d9de1fb2b6f0cf92d031ff85f1ebf805652d2389e57c96541e55eae18cb477ebf07fa0545df9825ceabc97b07180c5e3d1bfac491c5e6b2b

Download Submit
C:\Users\Admin\AppData\Roaming\Nochfolder\Wan.exe
Filesize
1.3MB

MD5
5c81162aa56ef2d826fb9568067b1ba3

SHA1
52a1dfb2f44c721b5e788df50b255759c7d3b72e

SHA256
96f5c3b4b81378a06491ff6ee82ab71af01e85a8bea12bef2d49a1d083262198

SHA512
7dc2660161712176d9de1fb2b6f0cf92d031ff85f1ebf805652d2389e57c96541e55eae18cb477ebf07fa0545df9825ceabc97b07180c5e3d1bfac491c5e6b2b

Download Submit
C:\Users\Admin\AppData\Roaming\Nochfolder\Wan.exe
Filesize
1.3MB

MD5
5c81162aa56ef2d826fb9568067b1ba3

SHA1
52a1dfb2f44c721b5e788df50b255759c7d3b72e

SHA256
96f5c3b4b81378a06491ff6ee82ab71af01e85a8bea12bef2d49a1d083262198

SHA512
7dc2660161712176d9de1fb2b6f0cf92d031ff85f1ebf805652d2389e57c96541e55eae18cb477ebf07fa0545df9825ceabc97b07180c5e3d1bfac491c5e6b2b

Download Submit
C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
Filesize
1.3MB

MD5
5c81162aa56ef2d826fb9568067b1ba3

SHA1
52a1dfb2f44c721b5e788df50b255759c7d3b72e

SHA256
96f5c3b4b81378a06491ff6ee82ab71af01e85a8bea12bef2d49a1d083262198

SHA512
7dc2660161712176d9de1fb2b6f0cf92d031ff85f1ebf805652d2389e57c96541e55eae18cb477ebf07fa0545df9825ceabc97b07180c5e3d1bfac491c5e6b2b

Download Submit
C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
Filesize
1.3MB

MD5
5c81162aa56ef2d826fb9568067b1ba3

SHA1
52a1dfb2f44c721b5e788df50b255759c7d3b72e

SHA256
96f5c3b4b81378a06491ff6ee82ab71af01e85a8bea12bef2d49a1d083262198

SHA512
7dc2660161712176d9de1fb2b6f0cf92d031ff85f1ebf805652d2389e57c96541e55eae18cb477ebf07fa0545df9825ceabc97b07180c5e3d1bfac491c5e6b2b

Download Submit
memory/2016-150-0x0000000000400000-0x000000000199B000-memory.dmp

Filesize
21.6MB

Download
memory/2016-142-0x0000000000000000-mapping.dmp

Download
memory/2016-145-0x0000000000400000-0x000000000199B000-memory.dmp

Filesize
21.6MB

Download
memory/2016-148-0x0000000000400000-0x000000000199B000-memory.dmp

Filesize
21.6MB

Download
memory/3068-132-0x0000000000400000-0x000000000199B000-memory.dmp

Filesize
21.6MB

Download
memory/3068-136-0x0000000000400000-0x000000000199B000-memory.dmp

Filesize
21.6MB

Download
memory/3748-141-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/3748-138-0x0000000000000000-mapping.dmp

Download
memory/4072-155-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/4072-154-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/4072-151-0x0000000000000000-mapping.dmp

Download
memory/4268-137-0x0000000000400000-0x000000000199B000-memory.dmp

Filesize
21.6MB

Download
memory/4268-133-0x0000000000000000-mapping.dmp

Download
memory/4268-140-0x0000000000400000-0x000000000199B000-memory.dmp

Filesize
21.6MB

Download
memory/4508-149-0x0000000000400000-0x000000000199B000-memory.dmp

Filesize
21.6MB

Download
memory/4508-153-0x0000000000400000-0x000000000199B000-memory.dmp

Filesize
21.6MB

Download
memory/4508-146-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads