darkcomet | 13509a38f18f8e07c11982a59642d90cd55d910482b8bab753949231211933ed

General

Target

13509a38f18f8e07c11982a59642d90cd55d910482b8bab753949231211933ed.exe
Size

1.4MB
MD5

cc010a9788fb94a30ffc7e7ce3572c74
SHA1

ef63edaecff71c8ca3aa3f3be5ceb1a18bd38672
SHA256

13509a38f18f8e07c11982a59642d90cd55d910482b8bab753949231211933ed
SHA512

fcbcc4efd16561411349e55e3461064ac642910053ecd30459cb4bc27895b3736616fd57600f82343a0597a62a002fcd68c6b77336954f104324b05e3f623fc3
SSDEEP

24576:uRmJkcoQricOIQxiZY1iaHfPFt+j/KIprM8KJGVG18XRjypuVPAZNbz:7JZoQrbTFZY1iaHfttw/RMNkWOR+AVPO

Score

10^/10

darkcomet sept persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Sept

C2

daynasmithx.ddns.net:100

Mutex

DCMIN_MUTEX-HFVU8P5

Attributes

gencode
cehBMBEe408f
install
false
offline_keylogger
true
persistence
false

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:

13509a38f18f8e07c11982a59642d90cd55d910482b8bab753949231211933ed.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\shell = "%AppData%\\Microsoft\\winlogon.exe,explorer.exe"	13509a38f18f8e07c11982a59642d90cd55d910482b8bab753949231211933ed.exe

Adds policy Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

13509a38f18f8e07c11982a59642d90cd55d910482b8bab753949231211933ed.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	13509a38f18f8e07c11982a59642d90cd55d910482b8bab753949231211933ed.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\Adobe Reader = "%AppData%\\Microsoft\\winlogon.exe"	13509a38f18f8e07c11982a59642d90cd55d910482b8bab753949231211933ed.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

13509a38f18f8e07c11982a59642d90cd55d910482b8bab753949231211933ed.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run	13509a38f18f8e07c11982a59642d90cd55d910482b8bab753949231211933ed.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\Adobe Reader = "%AppData%\\Microsoft\\winlogon.exe"	13509a38f18f8e07c11982a59642d90cd55d910482b8bab753949231211933ed.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

13509a38f18f8e07c11982a59642d90cd55d910482b8bab753949231211933ed.exe

description	pid	process	target process
PID 892 set thread context of 2040	892	13509a38f18f8e07c11982a59642d90cd55d910482b8bab753949231211933ed.exe	svchost.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 23 IoCs

Processes:

svchost.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	2040	svchost.exe
Token: SeSecurityPrivilege	2040	svchost.exe
Token: SeTakeOwnershipPrivilege	2040	svchost.exe
Token: SeLoadDriverPrivilege	2040	svchost.exe
Token: SeSystemProfilePrivilege	2040	svchost.exe
Token: SeSystemtimePrivilege	2040	svchost.exe
Token: SeProfSingleProcessPrivilege	2040	svchost.exe
Token: SeIncBasePriorityPrivilege	2040	svchost.exe
Token: SeCreatePagefilePrivilege	2040	svchost.exe
Token: SeBackupPrivilege	2040	svchost.exe
Token: SeRestorePrivilege	2040	svchost.exe
Token: SeShutdownPrivilege	2040	svchost.exe
Token: SeDebugPrivilege	2040	svchost.exe
Token: SeSystemEnvironmentPrivilege	2040	svchost.exe
Token: SeChangeNotifyPrivilege	2040	svchost.exe
Token: SeRemoteShutdownPrivilege	2040	svchost.exe
Token: SeUndockPrivilege	2040	svchost.exe
Token: SeManageVolumePrivilege	2040	svchost.exe
Token: SeImpersonatePrivilege	2040	svchost.exe
Token: SeCreateGlobalPrivilege	2040	svchost.exe
Token: 33	2040	svchost.exe
Token: 34	2040	svchost.exe
Token: 35	2040	svchost.exe

Suspicious use of FindShellTrayWindow 3 IoCs

Processes:

13509a38f18f8e07c11982a59642d90cd55d910482b8bab753949231211933ed.exe

pid	process
892	13509a38f18f8e07c11982a59642d90cd55d910482b8bab753949231211933ed.exe
892	13509a38f18f8e07c11982a59642d90cd55d910482b8bab753949231211933ed.exe
892	13509a38f18f8e07c11982a59642d90cd55d910482b8bab753949231211933ed.exe

Suspicious use of SendNotifyMessage 3 IoCs

Processes:

13509a38f18f8e07c11982a59642d90cd55d910482b8bab753949231211933ed.exe

pid	process
892	13509a38f18f8e07c11982a59642d90cd55d910482b8bab753949231211933ed.exe
892	13509a38f18f8e07c11982a59642d90cd55d910482b8bab753949231211933ed.exe
892	13509a38f18f8e07c11982a59642d90cd55d910482b8bab753949231211933ed.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

svchost.exe

pid process

2040 svchost.exe

pid	process
2040	svchost.exe

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

13509a38f18f8e07c11982a59642d90cd55d910482b8bab753949231211933ed.exe

description	pid	process	target process
PID 892 wrote to memory of 2040	892	13509a38f18f8e07c11982a59642d90cd55d910482b8bab753949231211933ed.exe	svchost.exe
PID 892 wrote to memory of 2040	892	13509a38f18f8e07c11982a59642d90cd55d910482b8bab753949231211933ed.exe	svchost.exe
PID 892 wrote to memory of 2040	892	13509a38f18f8e07c11982a59642d90cd55d910482b8bab753949231211933ed.exe	svchost.exe
PID 892 wrote to memory of 2040	892	13509a38f18f8e07c11982a59642d90cd55d910482b8bab753949231211933ed.exe	svchost.exe
PID 892 wrote to memory of 2040	892	13509a38f18f8e07c11982a59642d90cd55d910482b8bab753949231211933ed.exe	svchost.exe
PID 892 wrote to memory of 2040	892	13509a38f18f8e07c11982a59642d90cd55d910482b8bab753949231211933ed.exe	svchost.exe
PID 892 wrote to memory of 2040	892	13509a38f18f8e07c11982a59642d90cd55d910482b8bab753949231211933ed.exe	svchost.exe
PID 892 wrote to memory of 2040	892	13509a38f18f8e07c11982a59642d90cd55d910482b8bab753949231211933ed.exe	svchost.exe
PID 892 wrote to memory of 2040	892	13509a38f18f8e07c11982a59642d90cd55d910482b8bab753949231211933ed.exe	svchost.exe
PID 892 wrote to memory of 2040	892	13509a38f18f8e07c11982a59642d90cd55d910482b8bab753949231211933ed.exe	svchost.exe
PID 892 wrote to memory of 2040	892	13509a38f18f8e07c11982a59642d90cd55d910482b8bab753949231211933ed.exe	svchost.exe
PID 892 wrote to memory of 2040	892	13509a38f18f8e07c11982a59642d90cd55d910482b8bab753949231211933ed.exe	svchost.exe
PID 892 wrote to memory of 2040	892	13509a38f18f8e07c11982a59642d90cd55d910482b8bab753949231211933ed.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\13509a38f18f8e07c11982a59642d90cd55d910482b8bab753949231211933ed.exe
"C:\Users\Admin\AppData\Local\Temp\13509a38f18f8e07c11982a59642d90cd55d910482b8bab753949231211933ed.exe"
1⤵
- Modifies WinLogon for persistence
- Adds policy Run key to start application
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:892

C:\Windows\SysWOW64\svchost.exe
"C:\Windows\System32\svchost.exe"
2⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:2040

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

Winlogon Helper DLL

Privilege Escalation

Defense Evasion

Modify Registry

3

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/892-54-0x0000000075131000-0x0000000075133000-memory.dmp

Filesize
8KB

Download
memory/2040-55-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2040-56-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2040-58-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2040-60-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2040-62-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2040-64-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2040-65-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2040-67-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2040-69-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2040-70-0x000000000048F888-mapping.dmp

Download
memory/2040-71-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2040-73-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2040-74-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2040-75-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads