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
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
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DisableNotifications = "0"	Adobe.exe

Disables RegEdit via registry modification 1 IoCs

evasion

Processes:

Adobe.exe

description	ioc	process
Set value (int)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1"	Adobe.exe

Executes dropped EXE 1 IoCs

Processes:

Adobe.exe

pid process

1688 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

1440 attrib.exe
828 attrib.exe

pid	process
1688	Adobe.exe

pid	process
1440	attrib.exe
828	attrib.exe

Loads dropped DLL 2 IoCs

Processes:

5fac4ef49e661a2b661a5f3827a4db2c4b05fd00ad0b05793fcdb859b343ad38.exe

pid	process
884	5fac4ef49e661a2b661a5f3827a4db2c4b05fd00ad0b05793fcdb859b343ad38.exe
884	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-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\explorer = "C:\\Users\\Admin\\AppData\\Local\\Temp\\Adobe.exe"	5fac4ef49e661a2b661a5f3827a4db2c4b05fd00ad0b05793fcdb859b343ad38.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\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
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Adobe.exe

pid process

1688 Adobe.exe

pid	process
1688	Adobe.exe

Suspicious use of AdjustPrivilegeToken 46 IoCs

Processes:

5fac4ef49e661a2b661a5f3827a4db2c4b05fd00ad0b05793fcdb859b343ad38.exeAdobe.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	884	5fac4ef49e661a2b661a5f3827a4db2c4b05fd00ad0b05793fcdb859b343ad38.exe
Token: SeSecurityPrivilege	884	5fac4ef49e661a2b661a5f3827a4db2c4b05fd00ad0b05793fcdb859b343ad38.exe
Token: SeTakeOwnershipPrivilege	884	5fac4ef49e661a2b661a5f3827a4db2c4b05fd00ad0b05793fcdb859b343ad38.exe
Token: SeLoadDriverPrivilege	884	5fac4ef49e661a2b661a5f3827a4db2c4b05fd00ad0b05793fcdb859b343ad38.exe
Token: SeSystemProfilePrivilege	884	5fac4ef49e661a2b661a5f3827a4db2c4b05fd00ad0b05793fcdb859b343ad38.exe
Token: SeSystemtimePrivilege	884	5fac4ef49e661a2b661a5f3827a4db2c4b05fd00ad0b05793fcdb859b343ad38.exe
Token: SeProfSingleProcessPrivilege	884	5fac4ef49e661a2b661a5f3827a4db2c4b05fd00ad0b05793fcdb859b343ad38.exe
Token: SeIncBasePriorityPrivilege	884	5fac4ef49e661a2b661a5f3827a4db2c4b05fd00ad0b05793fcdb859b343ad38.exe
Token: SeCreatePagefilePrivilege	884	5fac4ef49e661a2b661a5f3827a4db2c4b05fd00ad0b05793fcdb859b343ad38.exe
Token: SeBackupPrivilege	884	5fac4ef49e661a2b661a5f3827a4db2c4b05fd00ad0b05793fcdb859b343ad38.exe
Token: SeRestorePrivilege	884	5fac4ef49e661a2b661a5f3827a4db2c4b05fd00ad0b05793fcdb859b343ad38.exe
Token: SeShutdownPrivilege	884	5fac4ef49e661a2b661a5f3827a4db2c4b05fd00ad0b05793fcdb859b343ad38.exe
Token: SeDebugPrivilege	884	5fac4ef49e661a2b661a5f3827a4db2c4b05fd00ad0b05793fcdb859b343ad38.exe
Token: SeSystemEnvironmentPrivilege	884	5fac4ef49e661a2b661a5f3827a4db2c4b05fd00ad0b05793fcdb859b343ad38.exe
Token: SeChangeNotifyPrivilege	884	5fac4ef49e661a2b661a5f3827a4db2c4b05fd00ad0b05793fcdb859b343ad38.exe
Token: SeRemoteShutdownPrivilege	884	5fac4ef49e661a2b661a5f3827a4db2c4b05fd00ad0b05793fcdb859b343ad38.exe
Token: SeUndockPrivilege	884	5fac4ef49e661a2b661a5f3827a4db2c4b05fd00ad0b05793fcdb859b343ad38.exe
Token: SeManageVolumePrivilege	884	5fac4ef49e661a2b661a5f3827a4db2c4b05fd00ad0b05793fcdb859b343ad38.exe
Token: SeImpersonatePrivilege	884	5fac4ef49e661a2b661a5f3827a4db2c4b05fd00ad0b05793fcdb859b343ad38.exe
Token: SeCreateGlobalPrivilege	884	5fac4ef49e661a2b661a5f3827a4db2c4b05fd00ad0b05793fcdb859b343ad38.exe
Token: 33	884	5fac4ef49e661a2b661a5f3827a4db2c4b05fd00ad0b05793fcdb859b343ad38.exe
Token: 34	884	5fac4ef49e661a2b661a5f3827a4db2c4b05fd00ad0b05793fcdb859b343ad38.exe
Token: 35	884	5fac4ef49e661a2b661a5f3827a4db2c4b05fd00ad0b05793fcdb859b343ad38.exe
Token: SeIncreaseQuotaPrivilege	1688	Adobe.exe
Token: SeSecurityPrivilege	1688	Adobe.exe
Token: SeTakeOwnershipPrivilege	1688	Adobe.exe
Token: SeLoadDriverPrivilege	1688	Adobe.exe
Token: SeSystemProfilePrivilege	1688	Adobe.exe
Token: SeSystemtimePrivilege	1688	Adobe.exe
Token: SeProfSingleProcessPrivilege	1688	Adobe.exe
Token: SeIncBasePriorityPrivilege	1688	Adobe.exe
Token: SeCreatePagefilePrivilege	1688	Adobe.exe
Token: SeBackupPrivilege	1688	Adobe.exe
Token: SeRestorePrivilege	1688	Adobe.exe
Token: SeShutdownPrivilege	1688	Adobe.exe
Token: SeDebugPrivilege	1688	Adobe.exe
Token: SeSystemEnvironmentPrivilege	1688	Adobe.exe
Token: SeChangeNotifyPrivilege	1688	Adobe.exe
Token: SeRemoteShutdownPrivilege	1688	Adobe.exe
Token: SeUndockPrivilege	1688	Adobe.exe
Token: SeManageVolumePrivilege	1688	Adobe.exe
Token: SeImpersonatePrivilege	1688	Adobe.exe
Token: SeCreateGlobalPrivilege	1688	Adobe.exe
Token: 33	1688	Adobe.exe
Token: 34	1688	Adobe.exe
Token: 35	1688	Adobe.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

Adobe.exe

pid process

1688 Adobe.exe

pid	process
1688	Adobe.exe

Suspicious use of WriteProcessMemory 43 IoCs

Processes:

5fac4ef49e661a2b661a5f3827a4db2c4b05fd00ad0b05793fcdb859b343ad38.execmd.execmd.exeAdobe.exe

description	pid	process	target process
PID 884 wrote to memory of 1464	884	5fac4ef49e661a2b661a5f3827a4db2c4b05fd00ad0b05793fcdb859b343ad38.exe	cmd.exe
PID 884 wrote to memory of 1464	884	5fac4ef49e661a2b661a5f3827a4db2c4b05fd00ad0b05793fcdb859b343ad38.exe	cmd.exe
PID 884 wrote to memory of 1464	884	5fac4ef49e661a2b661a5f3827a4db2c4b05fd00ad0b05793fcdb859b343ad38.exe	cmd.exe
PID 884 wrote to memory of 1464	884	5fac4ef49e661a2b661a5f3827a4db2c4b05fd00ad0b05793fcdb859b343ad38.exe	cmd.exe
PID 884 wrote to memory of 1520	884	5fac4ef49e661a2b661a5f3827a4db2c4b05fd00ad0b05793fcdb859b343ad38.exe	cmd.exe
PID 884 wrote to memory of 1520	884	5fac4ef49e661a2b661a5f3827a4db2c4b05fd00ad0b05793fcdb859b343ad38.exe	cmd.exe
PID 884 wrote to memory of 1520	884	5fac4ef49e661a2b661a5f3827a4db2c4b05fd00ad0b05793fcdb859b343ad38.exe	cmd.exe
PID 884 wrote to memory of 1520	884	5fac4ef49e661a2b661a5f3827a4db2c4b05fd00ad0b05793fcdb859b343ad38.exe	cmd.exe
PID 1464 wrote to memory of 1440	1464	cmd.exe	attrib.exe
PID 1464 wrote to memory of 1440	1464	cmd.exe	attrib.exe
PID 1464 wrote to memory of 1440	1464	cmd.exe	attrib.exe
PID 1464 wrote to memory of 1440	1464	cmd.exe	attrib.exe
PID 1520 wrote to memory of 828	1520	cmd.exe	attrib.exe
PID 1520 wrote to memory of 828	1520	cmd.exe	attrib.exe
PID 1520 wrote to memory of 828	1520	cmd.exe	attrib.exe
PID 1520 wrote to memory of 828	1520	cmd.exe	attrib.exe
PID 884 wrote to memory of 1688	884	5fac4ef49e661a2b661a5f3827a4db2c4b05fd00ad0b05793fcdb859b343ad38.exe	Adobe.exe
PID 884 wrote to memory of 1688	884	5fac4ef49e661a2b661a5f3827a4db2c4b05fd00ad0b05793fcdb859b343ad38.exe	Adobe.exe
PID 884 wrote to memory of 1688	884	5fac4ef49e661a2b661a5f3827a4db2c4b05fd00ad0b05793fcdb859b343ad38.exe	Adobe.exe
PID 884 wrote to memory of 1688	884	5fac4ef49e661a2b661a5f3827a4db2c4b05fd00ad0b05793fcdb859b343ad38.exe	Adobe.exe
PID 1688 wrote to memory of 1312	1688	Adobe.exe	notepad.exe
PID 1688 wrote to memory of 1312	1688	Adobe.exe	notepad.exe
PID 1688 wrote to memory of 1312	1688	Adobe.exe	notepad.exe
PID 1688 wrote to memory of 1312	1688	Adobe.exe	notepad.exe
PID 1688 wrote to memory of 1312	1688	Adobe.exe	notepad.exe
PID 1688 wrote to memory of 1312	1688	Adobe.exe	notepad.exe
PID 1688 wrote to memory of 1312	1688	Adobe.exe	notepad.exe
PID 1688 wrote to memory of 1312	1688	Adobe.exe	notepad.exe
PID 1688 wrote to memory of 1312	1688	Adobe.exe	notepad.exe
PID 1688 wrote to memory of 1312	1688	Adobe.exe	notepad.exe
PID 1688 wrote to memory of 1312	1688	Adobe.exe	notepad.exe
PID 1688 wrote to memory of 1312	1688	Adobe.exe	notepad.exe
PID 1688 wrote to memory of 1312	1688	Adobe.exe	notepad.exe
PID 1688 wrote to memory of 1312	1688	Adobe.exe	notepad.exe
PID 1688 wrote to memory of 1312	1688	Adobe.exe	notepad.exe
PID 1688 wrote to memory of 1312	1688	Adobe.exe	notepad.exe
PID 1688 wrote to memory of 1312	1688	Adobe.exe	notepad.exe
PID 1688 wrote to memory of 1312	1688	Adobe.exe	notepad.exe
PID 1688 wrote to memory of 1312	1688	Adobe.exe	notepad.exe
PID 1688 wrote to memory of 1312	1688	Adobe.exe	notepad.exe
PID 1688 wrote to memory of 1312	1688	Adobe.exe	notepad.exe
PID 1688 wrote to memory of 1312	1688	Adobe.exe	notepad.exe
PID 1688 wrote to memory of 1312	1688	Adobe.exe	notepad.exe

System policy modification 1 TTPs 3 IoCs

evasion

Modify Registry

T1112

Processes:

Adobe.exe

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

Views/modifies file attributes 1 TTPs 2 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exeattrib.exe

pid process

1440 attrib.exe
828 attrib.exe

pid	process
1440	attrib.exe
828	attrib.exe

C:\Users\Admin\AppData\Local\Temp\5fac4ef49e661a2b661a5f3827a4db2c4b05fd00ad0b05793fcdb859b343ad38.exe
"C:\Users\Admin\AppData\Local\Temp\5fac4ef49e661a2b661a5f3827a4db2c4b05fd00ad0b05793fcdb859b343ad38.exe"
1⤵
- Modifies WinLogon for persistence
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:884

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:1464

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:1440

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:1520

C:\Windows\SysWOW64\attrib.exe
attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
3⤵
- Sets file to hidden
- Views/modifies file attributes
PID:828

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:1688

C:\Windows\SysWOW64\notepad.exe
notepad
3⤵
PID:1312

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

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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

MD5
36fe326cc9fde6ad8bbda623c506d1c7

SHA1
79b1a31910a011b6103677fd31459c6563a459b3

SHA256
5fac4ef49e661a2b661a5f3827a4db2c4b05fd00ad0b05793fcdb859b343ad38

SHA512
960d8a20f82ecb74b5bee34960668433685eb907199db46feb84d5e193b44d8900bff1ca4149df6be295b70dfcc43c83ef089ae92845ac6570c22872e6238d7b

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

MD5
36fe326cc9fde6ad8bbda623c506d1c7

SHA1
79b1a31910a011b6103677fd31459c6563a459b3

SHA256
5fac4ef49e661a2b661a5f3827a4db2c4b05fd00ad0b05793fcdb859b343ad38

SHA512
960d8a20f82ecb74b5bee34960668433685eb907199db46feb84d5e193b44d8900bff1ca4149df6be295b70dfcc43c83ef089ae92845ac6570c22872e6238d7b

Download Submit
memory/828-58-0x0000000000000000-mapping.dmp

Download
memory/884-54-0x0000000075DF1000-0x0000000075DF3000-memory.dmp

Filesize
8KB

Download
memory/1312-65-0x0000000000000000-mapping.dmp

Download
memory/1440-57-0x0000000000000000-mapping.dmp

Download
memory/1464-55-0x0000000000000000-mapping.dmp

Download
memory/1520-56-0x0000000000000000-mapping.dmp

Download
memory/1688-61-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads