darkcomet | 5fac4ef49e661a2b661a5f3827a4db2c4b05fd00ad0b05793fcdb859b343ad38

General

Target

5fac4ef49e661a2b661a5f3827a4db2c4b05fd00ad0b05793fcdb859b343ad38.exe
Size

933KB
MD5

36fe326cc9fde6ad8bbda623c506d1c7
SHA1

79b1a31910a011b6103677fd31459c6563a459b3
SHA256

5fac4ef49e661a2b661a5f3827a4db2c4b05fd00ad0b05793fcdb859b343ad38
SHA512

960d8a20f82ecb74b5bee34960668433685eb907199db46feb84d5e193b44d8900bff1ca4149df6be295b70dfcc43c83ef089ae92845ac6570c22872e6238d7b
SSDEEP

24576:WZ1xuVVjfFoynPaVBUR8f+kN10EBvaU5Y/ZR:mQDgok30wzY/ZR

Score

10^/10

darkcomet hacker evasion persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Hacker

C2

leave1.no-ip.biz:1604

leave1.no-ip.biz:25565

Mutex

DC_MUTEX-42Q3MLQ

Attributes

InstallPath
Adobe.exe
gencode
z5FhgdoHdgW9
install
true
offline_keylogger
true
persistence
true
reg_key
explorer

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:

5fac4ef49e661a2b661a5f3827a4db2c4b05fd00ad0b05793fcdb859b343ad38.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\\Adobe.exe"	5fac4ef49e661a2b661a5f3827a4db2c4b05fd00ad0b05793fcdb859b343ad38.exe

Modifies firewall policy service 2 TTPs 3 IoCs

evasion

Modify Registry

T1112

Modify Existing Service

T1031

Processes:

Adobe.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DisableNotifications = "0"	Adobe.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile	Adobe.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\EnableFirewall = "0"	Adobe.exe

Disables RegEdit via registry modification 1 IoCs

evasion

Processes:

Adobe.exe

description	ioc	process
Set value (int)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1"	Adobe.exe

Executes dropped EXE 1 IoCs

Processes:

Adobe.exe

pid process

480 Adobe.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

3400 attrib.exe
1920 attrib.exe

pid	process
480	Adobe.exe

pid	process
3400	attrib.exe
1920	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:

5fac4ef49e661a2b661a5f3827a4db2c4b05fd00ad0b05793fcdb859b343ad38.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Control Panel\International\Geo\Nation	5fac4ef49e661a2b661a5f3827a4db2c4b05fd00ad0b05793fcdb859b343ad38.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

5fac4ef49e661a2b661a5f3827a4db2c4b05fd00ad0b05793fcdb859b343ad38.exeAdobe.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\explorer = "C:\\Users\\Admin\\AppData\\Local\\Temp\\Adobe.exe"	5fac4ef49e661a2b661a5f3827a4db2c4b05fd00ad0b05793fcdb859b343ad38.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\explorer = "C:\\Users\\Admin\\AppData\\Local\\Temp\\Adobe.exe"	Adobe.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:

5fac4ef49e661a2b661a5f3827a4db2c4b05fd00ad0b05793fcdb859b343ad38.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	5fac4ef49e661a2b661a5f3827a4db2c4b05fd00ad0b05793fcdb859b343ad38.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Adobe.exe

pid process

480 Adobe.exe

pid	process
480	Adobe.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

Processes:

5fac4ef49e661a2b661a5f3827a4db2c4b05fd00ad0b05793fcdb859b343ad38.exeAdobe.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	5048	5fac4ef49e661a2b661a5f3827a4db2c4b05fd00ad0b05793fcdb859b343ad38.exe
Token: SeSecurityPrivilege	5048	5fac4ef49e661a2b661a5f3827a4db2c4b05fd00ad0b05793fcdb859b343ad38.exe
Token: SeTakeOwnershipPrivilege	5048	5fac4ef49e661a2b661a5f3827a4db2c4b05fd00ad0b05793fcdb859b343ad38.exe
Token: SeLoadDriverPrivilege	5048	5fac4ef49e661a2b661a5f3827a4db2c4b05fd00ad0b05793fcdb859b343ad38.exe
Token: SeSystemProfilePrivilege	5048	5fac4ef49e661a2b661a5f3827a4db2c4b05fd00ad0b05793fcdb859b343ad38.exe
Token: SeSystemtimePrivilege	5048	5fac4ef49e661a2b661a5f3827a4db2c4b05fd00ad0b05793fcdb859b343ad38.exe
Token: SeProfSingleProcessPrivilege	5048	5fac4ef49e661a2b661a5f3827a4db2c4b05fd00ad0b05793fcdb859b343ad38.exe
Token: SeIncBasePriorityPrivilege	5048	5fac4ef49e661a2b661a5f3827a4db2c4b05fd00ad0b05793fcdb859b343ad38.exe
Token: SeCreatePagefilePrivilege	5048	5fac4ef49e661a2b661a5f3827a4db2c4b05fd00ad0b05793fcdb859b343ad38.exe
Token: SeBackupPrivilege	5048	5fac4ef49e661a2b661a5f3827a4db2c4b05fd00ad0b05793fcdb859b343ad38.exe
Token: SeRestorePrivilege	5048	5fac4ef49e661a2b661a5f3827a4db2c4b05fd00ad0b05793fcdb859b343ad38.exe
Token: SeShutdownPrivilege	5048	5fac4ef49e661a2b661a5f3827a4db2c4b05fd00ad0b05793fcdb859b343ad38.exe
Token: SeDebugPrivilege	5048	5fac4ef49e661a2b661a5f3827a4db2c4b05fd00ad0b05793fcdb859b343ad38.exe
Token: SeSystemEnvironmentPrivilege	5048	5fac4ef49e661a2b661a5f3827a4db2c4b05fd00ad0b05793fcdb859b343ad38.exe
Token: SeChangeNotifyPrivilege	5048	5fac4ef49e661a2b661a5f3827a4db2c4b05fd00ad0b05793fcdb859b343ad38.exe
Token: SeRemoteShutdownPrivilege	5048	5fac4ef49e661a2b661a5f3827a4db2c4b05fd00ad0b05793fcdb859b343ad38.exe
Token: SeUndockPrivilege	5048	5fac4ef49e661a2b661a5f3827a4db2c4b05fd00ad0b05793fcdb859b343ad38.exe
Token: SeManageVolumePrivilege	5048	5fac4ef49e661a2b661a5f3827a4db2c4b05fd00ad0b05793fcdb859b343ad38.exe
Token: SeImpersonatePrivilege	5048	5fac4ef49e661a2b661a5f3827a4db2c4b05fd00ad0b05793fcdb859b343ad38.exe
Token: SeCreateGlobalPrivilege	5048	5fac4ef49e661a2b661a5f3827a4db2c4b05fd00ad0b05793fcdb859b343ad38.exe
Token: 33	5048	5fac4ef49e661a2b661a5f3827a4db2c4b05fd00ad0b05793fcdb859b343ad38.exe
Token: 34	5048	5fac4ef49e661a2b661a5f3827a4db2c4b05fd00ad0b05793fcdb859b343ad38.exe
Token: 35	5048	5fac4ef49e661a2b661a5f3827a4db2c4b05fd00ad0b05793fcdb859b343ad38.exe
Token: 36	5048	5fac4ef49e661a2b661a5f3827a4db2c4b05fd00ad0b05793fcdb859b343ad38.exe
Token: SeIncreaseQuotaPrivilege	480	Adobe.exe
Token: SeSecurityPrivilege	480	Adobe.exe
Token: SeTakeOwnershipPrivilege	480	Adobe.exe
Token: SeLoadDriverPrivilege	480	Adobe.exe
Token: SeSystemProfilePrivilege	480	Adobe.exe
Token: SeSystemtimePrivilege	480	Adobe.exe
Token: SeProfSingleProcessPrivilege	480	Adobe.exe
Token: SeIncBasePriorityPrivilege	480	Adobe.exe
Token: SeCreatePagefilePrivilege	480	Adobe.exe
Token: SeBackupPrivilege	480	Adobe.exe
Token: SeRestorePrivilege	480	Adobe.exe
Token: SeShutdownPrivilege	480	Adobe.exe
Token: SeDebugPrivilege	480	Adobe.exe
Token: SeSystemEnvironmentPrivilege	480	Adobe.exe
Token: SeChangeNotifyPrivilege	480	Adobe.exe
Token: SeRemoteShutdownPrivilege	480	Adobe.exe
Token: SeUndockPrivilege	480	Adobe.exe
Token: SeManageVolumePrivilege	480	Adobe.exe
Token: SeImpersonatePrivilege	480	Adobe.exe
Token: SeCreateGlobalPrivilege	480	Adobe.exe
Token: 33	480	Adobe.exe
Token: 34	480	Adobe.exe
Token: 35	480	Adobe.exe
Token: 36	480	Adobe.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

Adobe.exe

pid process

480 Adobe.exe

pid	process
480	Adobe.exe

Suspicious use of WriteProcessMemory 37 IoCs

Processes:

5fac4ef49e661a2b661a5f3827a4db2c4b05fd00ad0b05793fcdb859b343ad38.execmd.execmd.exeAdobe.exe

description	pid	process	target process
PID 5048 wrote to memory of 3448	5048	5fac4ef49e661a2b661a5f3827a4db2c4b05fd00ad0b05793fcdb859b343ad38.exe	cmd.exe
PID 5048 wrote to memory of 3448	5048	5fac4ef49e661a2b661a5f3827a4db2c4b05fd00ad0b05793fcdb859b343ad38.exe	cmd.exe
PID 5048 wrote to memory of 3448	5048	5fac4ef49e661a2b661a5f3827a4db2c4b05fd00ad0b05793fcdb859b343ad38.exe	cmd.exe
PID 5048 wrote to memory of 3552	5048	5fac4ef49e661a2b661a5f3827a4db2c4b05fd00ad0b05793fcdb859b343ad38.exe	cmd.exe
PID 5048 wrote to memory of 3552	5048	5fac4ef49e661a2b661a5f3827a4db2c4b05fd00ad0b05793fcdb859b343ad38.exe	cmd.exe
PID 5048 wrote to memory of 3552	5048	5fac4ef49e661a2b661a5f3827a4db2c4b05fd00ad0b05793fcdb859b343ad38.exe	cmd.exe
PID 3448 wrote to memory of 1920	3448	cmd.exe	attrib.exe
PID 3448 wrote to memory of 1920	3448	cmd.exe	attrib.exe
PID 3448 wrote to memory of 1920	3448	cmd.exe	attrib.exe
PID 3552 wrote to memory of 3400	3552	cmd.exe	attrib.exe
PID 3552 wrote to memory of 3400	3552	cmd.exe	attrib.exe
PID 3552 wrote to memory of 3400	3552	cmd.exe	attrib.exe
PID 5048 wrote to memory of 480	5048	5fac4ef49e661a2b661a5f3827a4db2c4b05fd00ad0b05793fcdb859b343ad38.exe	Adobe.exe
PID 5048 wrote to memory of 480	5048	5fac4ef49e661a2b661a5f3827a4db2c4b05fd00ad0b05793fcdb859b343ad38.exe	Adobe.exe
PID 5048 wrote to memory of 480	5048	5fac4ef49e661a2b661a5f3827a4db2c4b05fd00ad0b05793fcdb859b343ad38.exe	Adobe.exe
PID 480 wrote to memory of 1676	480	Adobe.exe	notepad.exe
PID 480 wrote to memory of 1676	480	Adobe.exe	notepad.exe
PID 480 wrote to memory of 1676	480	Adobe.exe	notepad.exe
PID 480 wrote to memory of 1676	480	Adobe.exe	notepad.exe
PID 480 wrote to memory of 1676	480	Adobe.exe	notepad.exe
PID 480 wrote to memory of 1676	480	Adobe.exe	notepad.exe
PID 480 wrote to memory of 1676	480	Adobe.exe	notepad.exe
PID 480 wrote to memory of 1676	480	Adobe.exe	notepad.exe
PID 480 wrote to memory of 1676	480	Adobe.exe	notepad.exe
PID 480 wrote to memory of 1676	480	Adobe.exe	notepad.exe
PID 480 wrote to memory of 1676	480	Adobe.exe	notepad.exe
PID 480 wrote to memory of 1676	480	Adobe.exe	notepad.exe
PID 480 wrote to memory of 1676	480	Adobe.exe	notepad.exe
PID 480 wrote to memory of 1676	480	Adobe.exe	notepad.exe
PID 480 wrote to memory of 1676	480	Adobe.exe	notepad.exe
PID 480 wrote to memory of 1676	480	Adobe.exe	notepad.exe
PID 480 wrote to memory of 1676	480	Adobe.exe	notepad.exe
PID 480 wrote to memory of 1676	480	Adobe.exe	notepad.exe
PID 480 wrote to memory of 1676	480	Adobe.exe	notepad.exe
PID 480 wrote to memory of 1676	480	Adobe.exe	notepad.exe
PID 480 wrote to memory of 1676	480	Adobe.exe	notepad.exe
PID 480 wrote to memory of 1676	480	Adobe.exe	notepad.exe

System policy modification 1 TTPs 3 IoCs

evasion

Modify Registry

T1112

Processes:

Adobe.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\CurrentVersion	Adobe.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\CurrentVersion\Explorern	Adobe.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\CurrentVersion\Explorern\NoControlPanel = "1"	Adobe.exe

Views/modifies file attributes 1 TTPs 2 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exeattrib.exe

pid process

1920 attrib.exe
3400 attrib.exe

pid	process
1920	attrib.exe
3400	attrib.exe

C:\Users\Admin\AppData\Local\Temp\5fac4ef49e661a2b661a5f3827a4db2c4b05fd00ad0b05793fcdb859b343ad38.exe
"C:\Users\Admin\AppData\Local\Temp\5fac4ef49e661a2b661a5f3827a4db2c4b05fd00ad0b05793fcdb859b343ad38.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:5048

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\5fac4ef49e661a2b661a5f3827a4db2c4b05fd00ad0b05793fcdb859b343ad38.exe" +s +h
2⤵
- Suspicious use of WriteProcessMemory
PID:3448

C:\Windows\SysWOW64\attrib.exe
attrib "C:\Users\Admin\AppData\Local\Temp\5fac4ef49e661a2b661a5f3827a4db2c4b05fd00ad0b05793fcdb859b343ad38.exe" +s +h
3⤵
- Sets file to hidden
- Views/modifies file attributes
PID:1920

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:3552

C:\Windows\SysWOW64\attrib.exe
attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
3⤵
- Sets file to hidden
- Views/modifies file attributes
PID:3400

C:\Users\Admin\AppData\Local\Temp\Adobe.exe
"C:\Users\Admin\AppData\Local\Temp\Adobe.exe"
2⤵
- Modifies firewall policy service
- Disables RegEdit via registry modification
- Executes dropped EXE
- Adds Run key to start application
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
- System policy modification
PID:480

C:\Windows\SysWOW64\notepad.exe
notepad
3⤵
PID:1676

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

1

T1004

Modify Existing Service

1

T1031

Hidden Files and Directories

2

T1158

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

4

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\Adobe.exe
Filesize
933KB

MD5
36fe326cc9fde6ad8bbda623c506d1c7

SHA1
79b1a31910a011b6103677fd31459c6563a459b3

SHA256
5fac4ef49e661a2b661a5f3827a4db2c4b05fd00ad0b05793fcdb859b343ad38

SHA512
960d8a20f82ecb74b5bee34960668433685eb907199db46feb84d5e193b44d8900bff1ca4149df6be295b70dfcc43c83ef089ae92845ac6570c22872e6238d7b

Download Submit
C:\Users\Admin\AppData\Local\Temp\Adobe.exe
Filesize
933KB

MD5
36fe326cc9fde6ad8bbda623c506d1c7

SHA1
79b1a31910a011b6103677fd31459c6563a459b3

SHA256
5fac4ef49e661a2b661a5f3827a4db2c4b05fd00ad0b05793fcdb859b343ad38

SHA512
960d8a20f82ecb74b5bee34960668433685eb907199db46feb84d5e193b44d8900bff1ca4149df6be295b70dfcc43c83ef089ae92845ac6570c22872e6238d7b

Download Submit
memory/480-136-0x0000000000000000-mapping.dmp

Download
memory/1676-139-0x0000000000000000-mapping.dmp

Download
memory/1920-134-0x0000000000000000-mapping.dmp

Download
memory/3400-135-0x0000000000000000-mapping.dmp

Download
memory/3448-132-0x0000000000000000-mapping.dmp

Download
memory/3552-133-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads