darkcomet | 96f5c3b4b81378a06491ff6ee82ab71af01e85a8bea12bef2d49a1d083262198

Analysis

max time kernel
170s
max time network
47s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
25-11-2022 04:20

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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

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

1776 Wan.exe
1148 Wan.exe
1288 msdcsc.exe
1748 Wan.exe
1736 Wan.exe

pid	process
1776	Wan.exe
1148	Wan.exe
1288	msdcsc.exe
1748	Wan.exe
1736	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

Loads dropped DLL 5 IoCs

Processes:

96f5c3b4b81378a06491ff6ee82ab71af01e85a8bea12bef2d49a1d083262198.exeWan.exemsdcsc.exe

pid	process
1652	96f5c3b4b81378a06491ff6ee82ab71af01e85a8bea12bef2d49a1d083262198.exe
1652	96f5c3b4b81378a06491ff6ee82ab71af01e85a8bea12bef2d49a1d083262198.exe
1148	Wan.exe
1148	Wan.exe
1288	msdcsc.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-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	Wan.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\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

1652 96f5c3b4b81378a06491ff6ee82ab71af01e85a8bea12bef2d49a1d083262198.exe
1776 Wan.exe
1288 msdcsc.exe
1748 Wan.exe
Suspicious use of SetThreadContext 2 IoCs

Processes:

Wan.exeWan.exe

description pid process target process

PID 1776 set thread context of 1148 1776 Wan.exe Wan.exe
PID 1748 set thread context of 1736 1748 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
Suspicious behavior: GetForegroundWindowSpam 4 IoCs

Processes:

96f5c3b4b81378a06491ff6ee82ab71af01e85a8bea12bef2d49a1d083262198.exeWan.exemsdcsc.exeWan.exe

pid process

1652 96f5c3b4b81378a06491ff6ee82ab71af01e85a8bea12bef2d49a1d083262198.exe
1776 Wan.exe
1288 msdcsc.exe
1748 Wan.exe
Suspicious behavior: MapViewOfSection 4 IoCs

Processes:

Wan.exeWan.exe

pid process

1776 Wan.exe
1776 Wan.exe
1748 Wan.exe
1748 Wan.exe

description	pid	process	target process
PID 1776 set thread context of 1148	1776	Wan.exe	Wan.exe
PID 1748 set thread context of 1736	1748	Wan.exe	Wan.exe

pid	process
1776	Wan.exe
1776	Wan.exe
1748	Wan.exe
1748	Wan.exe

Suspicious use of AdjustPrivilegeToken 46 IoCs

Processes:

Wan.exeWan.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	1148	Wan.exe
Token: SeSecurityPrivilege	1148	Wan.exe
Token: SeTakeOwnershipPrivilege	1148	Wan.exe
Token: SeLoadDriverPrivilege	1148	Wan.exe
Token: SeSystemProfilePrivilege	1148	Wan.exe
Token: SeSystemtimePrivilege	1148	Wan.exe
Token: SeProfSingleProcessPrivilege	1148	Wan.exe
Token: SeIncBasePriorityPrivilege	1148	Wan.exe
Token: SeCreatePagefilePrivilege	1148	Wan.exe
Token: SeBackupPrivilege	1148	Wan.exe
Token: SeRestorePrivilege	1148	Wan.exe
Token: SeShutdownPrivilege	1148	Wan.exe
Token: SeDebugPrivilege	1148	Wan.exe
Token: SeSystemEnvironmentPrivilege	1148	Wan.exe
Token: SeChangeNotifyPrivilege	1148	Wan.exe
Token: SeRemoteShutdownPrivilege	1148	Wan.exe
Token: SeUndockPrivilege	1148	Wan.exe
Token: SeManageVolumePrivilege	1148	Wan.exe
Token: SeImpersonatePrivilege	1148	Wan.exe
Token: SeCreateGlobalPrivilege	1148	Wan.exe
Token: 33	1148	Wan.exe
Token: 34	1148	Wan.exe
Token: 35	1148	Wan.exe
Token: SeIncreaseQuotaPrivilege	1736	Wan.exe
Token: SeSecurityPrivilege	1736	Wan.exe
Token: SeTakeOwnershipPrivilege	1736	Wan.exe
Token: SeLoadDriverPrivilege	1736	Wan.exe
Token: SeSystemProfilePrivilege	1736	Wan.exe
Token: SeSystemtimePrivilege	1736	Wan.exe
Token: SeProfSingleProcessPrivilege	1736	Wan.exe
Token: SeIncBasePriorityPrivilege	1736	Wan.exe
Token: SeCreatePagefilePrivilege	1736	Wan.exe
Token: SeBackupPrivilege	1736	Wan.exe
Token: SeRestorePrivilege	1736	Wan.exe
Token: SeShutdownPrivilege	1736	Wan.exe
Token: SeDebugPrivilege	1736	Wan.exe
Token: SeSystemEnvironmentPrivilege	1736	Wan.exe
Token: SeChangeNotifyPrivilege	1736	Wan.exe
Token: SeRemoteShutdownPrivilege	1736	Wan.exe
Token: SeUndockPrivilege	1736	Wan.exe
Token: SeManageVolumePrivilege	1736	Wan.exe
Token: SeImpersonatePrivilege	1736	Wan.exe
Token: SeCreateGlobalPrivilege	1736	Wan.exe
Token: 33	1736	Wan.exe
Token: 34	1736	Wan.exe
Token: 35	1736	Wan.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

Wan.exe

pid process

1736 Wan.exe

pid	process
1736	Wan.exe

Suspicious use of WriteProcessMemory 20 IoCs

Processes:

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

description	pid	process	target process
PID 1652 wrote to memory of 1776	1652	96f5c3b4b81378a06491ff6ee82ab71af01e85a8bea12bef2d49a1d083262198.exe	Wan.exe
PID 1652 wrote to memory of 1776	1652	96f5c3b4b81378a06491ff6ee82ab71af01e85a8bea12bef2d49a1d083262198.exe	Wan.exe
PID 1652 wrote to memory of 1776	1652	96f5c3b4b81378a06491ff6ee82ab71af01e85a8bea12bef2d49a1d083262198.exe	Wan.exe
PID 1652 wrote to memory of 1776	1652	96f5c3b4b81378a06491ff6ee82ab71af01e85a8bea12bef2d49a1d083262198.exe	Wan.exe
PID 1776 wrote to memory of 1148	1776	Wan.exe	Wan.exe
PID 1776 wrote to memory of 1148	1776	Wan.exe	Wan.exe
PID 1776 wrote to memory of 1148	1776	Wan.exe	Wan.exe
PID 1776 wrote to memory of 1148	1776	Wan.exe	Wan.exe
PID 1148 wrote to memory of 1288	1148	Wan.exe	msdcsc.exe
PID 1148 wrote to memory of 1288	1148	Wan.exe	msdcsc.exe
PID 1148 wrote to memory of 1288	1148	Wan.exe	msdcsc.exe
PID 1148 wrote to memory of 1288	1148	Wan.exe	msdcsc.exe
PID 1288 wrote to memory of 1748	1288	msdcsc.exe	Wan.exe
PID 1288 wrote to memory of 1748	1288	msdcsc.exe	Wan.exe
PID 1288 wrote to memory of 1748	1288	msdcsc.exe	Wan.exe
PID 1288 wrote to memory of 1748	1288	msdcsc.exe	Wan.exe
PID 1748 wrote to memory of 1736	1748	Wan.exe	Wan.exe
PID 1748 wrote to memory of 1736	1748	Wan.exe	Wan.exe
PID 1748 wrote to memory of 1736	1748	Wan.exe	Wan.exe
PID 1748 wrote to memory of 1736	1748	Wan.exe	Wan.exe

C:\Users\Admin\AppData\Local\Temp\96f5c3b4b81378a06491ff6ee82ab71af01e85a8bea12bef2d49a1d083262198.exe
"C:\Users\Admin\AppData\Local\Temp\96f5c3b4b81378a06491ff6ee82ab71af01e85a8bea12bef2d49a1d083262198.exe"
1⤵
- Drops startup file
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:1652

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:1776

C:\Users\Admin\AppData\Roaming\Nochfolder\Wan.exe
"C:\Users\Admin\AppData\Roaming\Nochfolder\Wan.exe"
3⤵
- Modifies WinLogon for persistence
- Executes dropped EXE
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1148

C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
"C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
4⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:1288

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:1748

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:1736

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

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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
\Users\Admin\AppData\Roaming\Nochfolder\Wan.exe

Filesize
1.3MB

MD5
5c81162aa56ef2d826fb9568067b1ba3

SHA1
52a1dfb2f44c721b5e788df50b255759c7d3b72e

SHA256
96f5c3b4b81378a06491ff6ee82ab71af01e85a8bea12bef2d49a1d083262198

SHA512
7dc2660161712176d9de1fb2b6f0cf92d031ff85f1ebf805652d2389e57c96541e55eae18cb477ebf07fa0545df9825ceabc97b07180c5e3d1bfac491c5e6b2b

Download Submit
\Users\Admin\AppData\Roaming\Nochfolder\Wan.exe

Filesize
1.3MB

MD5
5c81162aa56ef2d826fb9568067b1ba3

SHA1
52a1dfb2f44c721b5e788df50b255759c7d3b72e

SHA256
96f5c3b4b81378a06491ff6ee82ab71af01e85a8bea12bef2d49a1d083262198

SHA512
7dc2660161712176d9de1fb2b6f0cf92d031ff85f1ebf805652d2389e57c96541e55eae18cb477ebf07fa0545df9825ceabc97b07180c5e3d1bfac491c5e6b2b

Download Submit
\Users\Admin\AppData\Roaming\Nochfolder\Wan.exe

Filesize
1.3MB

MD5
5c81162aa56ef2d826fb9568067b1ba3

SHA1
52a1dfb2f44c721b5e788df50b255759c7d3b72e

SHA256
96f5c3b4b81378a06491ff6ee82ab71af01e85a8bea12bef2d49a1d083262198

SHA512
7dc2660161712176d9de1fb2b6f0cf92d031ff85f1ebf805652d2389e57c96541e55eae18cb477ebf07fa0545df9825ceabc97b07180c5e3d1bfac491c5e6b2b

Download Submit
\Users\Admin\Documents\MSDCSC\msdcsc.exe

Filesize
1.3MB

MD5
5c81162aa56ef2d826fb9568067b1ba3

SHA1
52a1dfb2f44c721b5e788df50b255759c7d3b72e

SHA256
96f5c3b4b81378a06491ff6ee82ab71af01e85a8bea12bef2d49a1d083262198

SHA512
7dc2660161712176d9de1fb2b6f0cf92d031ff85f1ebf805652d2389e57c96541e55eae18cb477ebf07fa0545df9825ceabc97b07180c5e3d1bfac491c5e6b2b

Download Submit
\Users\Admin\Documents\MSDCSC\msdcsc.exe

Filesize
1.3MB

MD5
5c81162aa56ef2d826fb9568067b1ba3

SHA1
52a1dfb2f44c721b5e788df50b255759c7d3b72e

SHA256
96f5c3b4b81378a06491ff6ee82ab71af01e85a8bea12bef2d49a1d083262198

SHA512
7dc2660161712176d9de1fb2b6f0cf92d031ff85f1ebf805652d2389e57c96541e55eae18cb477ebf07fa0545df9825ceabc97b07180c5e3d1bfac491c5e6b2b

Download Submit
memory/1148-76-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1148-64-0x000000000048F888-mapping.dmp

Download
memory/1148-68-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1148-73-0x0000000004ED0000-0x000000000646B000-memory.dmp

Filesize
21.6MB

Download
memory/1148-74-0x0000000004ED0000-0x000000000646B000-memory.dmp

Filesize
21.6MB

Download
memory/1288-71-0x0000000000000000-mapping.dmp

Download
memory/1288-81-0x0000000000400000-0x000000000199B000-memory.dmp

Filesize
21.6MB

Download
memory/1288-75-0x0000000000400000-0x000000000199B000-memory.dmp

Filesize
21.6MB

Download
memory/1652-54-0x0000000000400000-0x000000000199B000-memory.dmp

Filesize
21.6MB

Download
memory/1652-60-0x0000000000400000-0x000000000199B000-memory.dmp

Filesize
21.6MB

Download
memory/1652-90-0x0000000000400000-0x000000000199B000-memory.dmp

Filesize
21.6MB

Download
memory/1652-55-0x0000000074C91000-0x0000000074C93000-memory.dmp

Filesize
8KB

Download
memory/1736-92-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1736-89-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1736-84-0x000000000048F888-mapping.dmp

Download
memory/1748-79-0x0000000000000000-mapping.dmp

Download
memory/1748-87-0x0000000000400000-0x000000000199B000-memory.dmp

Filesize
21.6MB

Download
memory/1748-82-0x0000000000400000-0x000000000199B000-memory.dmp

Filesize
21.6MB

Download
memory/1776-61-0x0000000000400000-0x000000000199B000-memory.dmp

Filesize
21.6MB

Download
memory/1776-58-0x0000000000000000-mapping.dmp

Download
memory/1776-91-0x0000000000400000-0x000000000199B000-memory.dmp

Filesize
21.6MB

Download
memory/1776-67-0x0000000000400000-0x000000000199B000-memory.dmp

Filesize
21.6MB

Download