darkcomet | 626dab42d424d40c23ae40bed02f3d826e404e964cca3877979a18b13a852c14

General

Target

626dab42d424d40c23ae40bed02f3d826e404e964cca3877979a18b13a852c14.exe
Size

658KB
MD5

77877cbf3a974a22942251639c9b4f44
SHA1

8592457a1ed0d904845d9c4bc3434b30bcd626ff
SHA256

626dab42d424d40c23ae40bed02f3d826e404e964cca3877979a18b13a852c14
SHA512

6a8a1ec91f2482b7ea0211d41cf611b6ebe983c21211b875783362bcb02b03f3a1b4def2b41b6d0073cb65ec3a186585d2004795abc486a518db1c6769da7739
SSDEEP

12288:+9HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9Ek5C/h5:KZ1xuVVjfFoynPaVBUR8f+kN10EBH

Score

10^/10

darkcomet dc evasion persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

DC

C2

platrat.no-ip.biz:200

Mutex

DC_MUTEX-V7T9GZM

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
ZsFDKmYnrqzM
install
true
offline_keylogger
true
persistence
true
reg_key
rundll32

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:

626dab42d424d40c23ae40bed02f3d826e404e964cca3877979a18b13a852c14.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\Users\\Admin\\AppData\\Local\\Temp\\MSDCSC\\msdcsc.exe"	626dab42d424d40c23ae40bed02f3d826e404e964cca3877979a18b13a852c14.exe

Executes dropped EXE 1 IoCs

Processes:

msdcsc.exe

pid process

1876 msdcsc.exe
Sets file to hidden 1 TTPs 2 IoCs
Modifies file attributes to stop it showing in Explorer etc.
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exeattrib.exe

pid process

2384 attrib.exe
3996 attrib.exe

pid	process
1876	msdcsc.exe

pid	process
2384	attrib.exe
3996	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

Processes:

626dab42d424d40c23ae40bed02f3d826e404e964cca3877979a18b13a852c14.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation	626dab42d424d40c23ae40bed02f3d826e404e964cca3877979a18b13a852c14.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

626dab42d424d40c23ae40bed02f3d826e404e964cca3877979a18b13a852c14.exemsdcsc.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\rundll32 = "C:\\Users\\Admin\\AppData\\Local\\Temp\\MSDCSC\\msdcsc.exe"	626dab42d424d40c23ae40bed02f3d826e404e964cca3877979a18b13a852c14.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\rundll32 = "C:\\Users\\Admin\\AppData\\Local\\Temp\\MSDCSC\\msdcsc.exe"	msdcsc.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:

626dab42d424d40c23ae40bed02f3d826e404e964cca3877979a18b13a852c14.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	626dab42d424d40c23ae40bed02f3d826e404e964cca3877979a18b13a852c14.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

msdcsc.exe

pid process

1876 msdcsc.exe

pid	process
1876	msdcsc.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

Processes:

626dab42d424d40c23ae40bed02f3d826e404e964cca3877979a18b13a852c14.exemsdcsc.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	2808	626dab42d424d40c23ae40bed02f3d826e404e964cca3877979a18b13a852c14.exe
Token: SeSecurityPrivilege	2808	626dab42d424d40c23ae40bed02f3d826e404e964cca3877979a18b13a852c14.exe
Token: SeTakeOwnershipPrivilege	2808	626dab42d424d40c23ae40bed02f3d826e404e964cca3877979a18b13a852c14.exe
Token: SeLoadDriverPrivilege	2808	626dab42d424d40c23ae40bed02f3d826e404e964cca3877979a18b13a852c14.exe
Token: SeSystemProfilePrivilege	2808	626dab42d424d40c23ae40bed02f3d826e404e964cca3877979a18b13a852c14.exe
Token: SeSystemtimePrivilege	2808	626dab42d424d40c23ae40bed02f3d826e404e964cca3877979a18b13a852c14.exe
Token: SeProfSingleProcessPrivilege	2808	626dab42d424d40c23ae40bed02f3d826e404e964cca3877979a18b13a852c14.exe
Token: SeIncBasePriorityPrivilege	2808	626dab42d424d40c23ae40bed02f3d826e404e964cca3877979a18b13a852c14.exe
Token: SeCreatePagefilePrivilege	2808	626dab42d424d40c23ae40bed02f3d826e404e964cca3877979a18b13a852c14.exe
Token: SeBackupPrivilege	2808	626dab42d424d40c23ae40bed02f3d826e404e964cca3877979a18b13a852c14.exe
Token: SeRestorePrivilege	2808	626dab42d424d40c23ae40bed02f3d826e404e964cca3877979a18b13a852c14.exe
Token: SeShutdownPrivilege	2808	626dab42d424d40c23ae40bed02f3d826e404e964cca3877979a18b13a852c14.exe
Token: SeDebugPrivilege	2808	626dab42d424d40c23ae40bed02f3d826e404e964cca3877979a18b13a852c14.exe
Token: SeSystemEnvironmentPrivilege	2808	626dab42d424d40c23ae40bed02f3d826e404e964cca3877979a18b13a852c14.exe
Token: SeChangeNotifyPrivilege	2808	626dab42d424d40c23ae40bed02f3d826e404e964cca3877979a18b13a852c14.exe
Token: SeRemoteShutdownPrivilege	2808	626dab42d424d40c23ae40bed02f3d826e404e964cca3877979a18b13a852c14.exe
Token: SeUndockPrivilege	2808	626dab42d424d40c23ae40bed02f3d826e404e964cca3877979a18b13a852c14.exe
Token: SeManageVolumePrivilege	2808	626dab42d424d40c23ae40bed02f3d826e404e964cca3877979a18b13a852c14.exe
Token: SeImpersonatePrivilege	2808	626dab42d424d40c23ae40bed02f3d826e404e964cca3877979a18b13a852c14.exe
Token: SeCreateGlobalPrivilege	2808	626dab42d424d40c23ae40bed02f3d826e404e964cca3877979a18b13a852c14.exe
Token: 33	2808	626dab42d424d40c23ae40bed02f3d826e404e964cca3877979a18b13a852c14.exe
Token: 34	2808	626dab42d424d40c23ae40bed02f3d826e404e964cca3877979a18b13a852c14.exe
Token: 35	2808	626dab42d424d40c23ae40bed02f3d826e404e964cca3877979a18b13a852c14.exe
Token: 36	2808	626dab42d424d40c23ae40bed02f3d826e404e964cca3877979a18b13a852c14.exe
Token: SeIncreaseQuotaPrivilege	1876	msdcsc.exe
Token: SeSecurityPrivilege	1876	msdcsc.exe
Token: SeTakeOwnershipPrivilege	1876	msdcsc.exe
Token: SeLoadDriverPrivilege	1876	msdcsc.exe
Token: SeSystemProfilePrivilege	1876	msdcsc.exe
Token: SeSystemtimePrivilege	1876	msdcsc.exe
Token: SeProfSingleProcessPrivilege	1876	msdcsc.exe
Token: SeIncBasePriorityPrivilege	1876	msdcsc.exe
Token: SeCreatePagefilePrivilege	1876	msdcsc.exe
Token: SeBackupPrivilege	1876	msdcsc.exe
Token: SeRestorePrivilege	1876	msdcsc.exe
Token: SeShutdownPrivilege	1876	msdcsc.exe
Token: SeDebugPrivilege	1876	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	1876	msdcsc.exe
Token: SeChangeNotifyPrivilege	1876	msdcsc.exe
Token: SeRemoteShutdownPrivilege	1876	msdcsc.exe
Token: SeUndockPrivilege	1876	msdcsc.exe
Token: SeManageVolumePrivilege	1876	msdcsc.exe
Token: SeImpersonatePrivilege	1876	msdcsc.exe
Token: SeCreateGlobalPrivilege	1876	msdcsc.exe
Token: 33	1876	msdcsc.exe
Token: 34	1876	msdcsc.exe
Token: 35	1876	msdcsc.exe
Token: 36	1876	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

msdcsc.exe

pid process

1876 msdcsc.exe

pid	process
1876	msdcsc.exe

Suspicious use of WriteProcessMemory 37 IoCs

Processes:

626dab42d424d40c23ae40bed02f3d826e404e964cca3877979a18b13a852c14.execmd.execmd.exemsdcsc.exe

description	pid	process	target process
PID 2808 wrote to memory of 1456	2808	626dab42d424d40c23ae40bed02f3d826e404e964cca3877979a18b13a852c14.exe	cmd.exe
PID 2808 wrote to memory of 1456	2808	626dab42d424d40c23ae40bed02f3d826e404e964cca3877979a18b13a852c14.exe	cmd.exe
PID 2808 wrote to memory of 1456	2808	626dab42d424d40c23ae40bed02f3d826e404e964cca3877979a18b13a852c14.exe	cmd.exe
PID 2808 wrote to memory of 5008	2808	626dab42d424d40c23ae40bed02f3d826e404e964cca3877979a18b13a852c14.exe	cmd.exe
PID 2808 wrote to memory of 5008	2808	626dab42d424d40c23ae40bed02f3d826e404e964cca3877979a18b13a852c14.exe	cmd.exe
PID 2808 wrote to memory of 5008	2808	626dab42d424d40c23ae40bed02f3d826e404e964cca3877979a18b13a852c14.exe	cmd.exe
PID 1456 wrote to memory of 2384	1456	cmd.exe	attrib.exe
PID 1456 wrote to memory of 2384	1456	cmd.exe	attrib.exe
PID 1456 wrote to memory of 2384	1456	cmd.exe	attrib.exe
PID 5008 wrote to memory of 3996	5008	cmd.exe	attrib.exe
PID 5008 wrote to memory of 3996	5008	cmd.exe	attrib.exe
PID 5008 wrote to memory of 3996	5008	cmd.exe	attrib.exe
PID 2808 wrote to memory of 1876	2808	626dab42d424d40c23ae40bed02f3d826e404e964cca3877979a18b13a852c14.exe	msdcsc.exe
PID 2808 wrote to memory of 1876	2808	626dab42d424d40c23ae40bed02f3d826e404e964cca3877979a18b13a852c14.exe	msdcsc.exe
PID 2808 wrote to memory of 1876	2808	626dab42d424d40c23ae40bed02f3d826e404e964cca3877979a18b13a852c14.exe	msdcsc.exe
PID 1876 wrote to memory of 3408	1876	msdcsc.exe	notepad.exe
PID 1876 wrote to memory of 3408	1876	msdcsc.exe	notepad.exe
PID 1876 wrote to memory of 3408	1876	msdcsc.exe	notepad.exe
PID 1876 wrote to memory of 3408	1876	msdcsc.exe	notepad.exe
PID 1876 wrote to memory of 3408	1876	msdcsc.exe	notepad.exe
PID 1876 wrote to memory of 3408	1876	msdcsc.exe	notepad.exe
PID 1876 wrote to memory of 3408	1876	msdcsc.exe	notepad.exe
PID 1876 wrote to memory of 3408	1876	msdcsc.exe	notepad.exe
PID 1876 wrote to memory of 3408	1876	msdcsc.exe	notepad.exe
PID 1876 wrote to memory of 3408	1876	msdcsc.exe	notepad.exe
PID 1876 wrote to memory of 3408	1876	msdcsc.exe	notepad.exe
PID 1876 wrote to memory of 3408	1876	msdcsc.exe	notepad.exe
PID 1876 wrote to memory of 3408	1876	msdcsc.exe	notepad.exe
PID 1876 wrote to memory of 3408	1876	msdcsc.exe	notepad.exe
PID 1876 wrote to memory of 3408	1876	msdcsc.exe	notepad.exe
PID 1876 wrote to memory of 3408	1876	msdcsc.exe	notepad.exe
PID 1876 wrote to memory of 3408	1876	msdcsc.exe	notepad.exe
PID 1876 wrote to memory of 3408	1876	msdcsc.exe	notepad.exe
PID 1876 wrote to memory of 3408	1876	msdcsc.exe	notepad.exe
PID 1876 wrote to memory of 3408	1876	msdcsc.exe	notepad.exe
PID 1876 wrote to memory of 3408	1876	msdcsc.exe	notepad.exe
PID 1876 wrote to memory of 3408	1876	msdcsc.exe	notepad.exe

Views/modifies file attributes 1 TTPs 2 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exeattrib.exe

pid process

2384 attrib.exe
3996 attrib.exe

pid	process
2384	attrib.exe
3996	attrib.exe

C:\Users\Admin\AppData\Local\Temp\626dab42d424d40c23ae40bed02f3d826e404e964cca3877979a18b13a852c14.exe
"C:\Users\Admin\AppData\Local\Temp\626dab42d424d40c23ae40bed02f3d826e404e964cca3877979a18b13a852c14.exe"
1⤵
- Modifies WinLogon for persistence
- Checks computer location settings
- Adds Run key to start application
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2808

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\626dab42d424d40c23ae40bed02f3d826e404e964cca3877979a18b13a852c14.exe" +s +h
2⤵
- Suspicious use of WriteProcessMemory
PID:1456

C:\Windows\SysWOW64\attrib.exe
attrib "C:\Users\Admin\AppData\Local\Temp\626dab42d424d40c23ae40bed02f3d826e404e964cca3877979a18b13a852c14.exe" +s +h
3⤵
- Sets file to hidden
- Views/modifies file attributes
PID:2384

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
2⤵
- Suspicious use of WriteProcessMemory
PID:5008

C:\Windows\SysWOW64\attrib.exe
attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
3⤵
- Sets file to hidden
- Views/modifies file attributes
PID:3996

C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
"C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe"
2⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1876

C:\Windows\SysWOW64\notepad.exe
notepad
3⤵
PID:3408

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

1

T1004

Hidden Files and Directories

2

T1158

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

2

T1112

Hidden Files and Directories

2

T1158

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
Filesize
658KB

MD5
77877cbf3a974a22942251639c9b4f44

SHA1
8592457a1ed0d904845d9c4bc3434b30bcd626ff

SHA256
626dab42d424d40c23ae40bed02f3d826e404e964cca3877979a18b13a852c14

SHA512
6a8a1ec91f2482b7ea0211d41cf611b6ebe983c21211b875783362bcb02b03f3a1b4def2b41b6d0073cb65ec3a186585d2004795abc486a518db1c6769da7739

Download Submit
C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
Filesize
658KB

MD5
77877cbf3a974a22942251639c9b4f44

SHA1
8592457a1ed0d904845d9c4bc3434b30bcd626ff

SHA256
626dab42d424d40c23ae40bed02f3d826e404e964cca3877979a18b13a852c14

SHA512
6a8a1ec91f2482b7ea0211d41cf611b6ebe983c21211b875783362bcb02b03f3a1b4def2b41b6d0073cb65ec3a186585d2004795abc486a518db1c6769da7739

Download Submit
memory/1456-132-0x0000000000000000-mapping.dmp

Download
memory/1876-136-0x0000000000000000-mapping.dmp

Download
memory/2384-134-0x0000000000000000-mapping.dmp

Download
memory/3408-139-0x0000000000000000-mapping.dmp

Download
memory/3996-135-0x0000000000000000-mapping.dmp

Download
memory/5008-133-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads