darkcomet | 23177b599c322119b7796bbfd6e8f0005ed1f3a6e51b28c19bfe85706cbc30ea

Analysis

max time kernel
151s
max time network
153s
platform
windows10_x64
resource
win10v20201028
submitted
10-11-2020 10:54

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General

Target

23177b599c322119b7796bbfd6e8f0005ed1f3a6e51b28c19bfe85706cbc30ea.exe
Size

726KB
MD5

36f8a5356eaa170009cd6cc4bb7e4eeb
SHA1

fc4601d48e42cfbea7cee7891d9170d7d9de2370
SHA256

23177b599c322119b7796bbfd6e8f0005ed1f3a6e51b28c19bfe85706cbc30ea
SHA512

30cab5cb33f7fd22bfe004cb794e65ad7bd1513404893107ebcb8bc12ea6d7ee4526302cd352710ed650dc3043fd16c333eb131e8313951dea48273060096660

Score

10^/10

darkcomet cybergate persistence rat trojan upx

Malware Config

Extracted

Family

darkcomet

Botnet

Cybergate

xyk.no-ip.org:82

Mutex

DC_MUTEX-CBRCJKD

Attributes

gencode
dStG8rFqSf0i
install
false
offline_keylogger
true
password
12345678
persistence
false

Signatures

Darkcomet
DarkComet is a remote access trojan (RAT) developed by Jean-Pierre Lesueur.
trojan rat darkcomet

UPX packed file 3 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

Processes:

resource	yara_rule
behavioral2/memory/900-0-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/900-2-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/900-3-0x0000000000400000-0x00000000004B7000-memory.dmp	upx

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

reg.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1985363256-3005190890-1182679451-1000\Software\Microsoft\Windows\CurrentVersion\Run\wuauclt = "C:\\Users\\Admin\\AppData\\Local\\WinUpdate.exe"	reg.exe
Key created	\REGISTRY\USER\S-1-5-21-1985363256-3005190890-1182679451-1000\Software\Microsoft\Windows\CurrentVersion\Run	reg.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

23177b599c322119b7796bbfd6e8f0005ed1f3a6e51b28c19bfe85706cbc30ea.exe

description	pid	process	target process
PID 428 set thread context of 900	428	23177b599c322119b7796bbfd6e8f0005ed1f3a6e51b28c19bfe85706cbc30ea.exe	AppLaunch.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: EnumeratesProcesses 2 IoCs

Processes:

dw20.exe

pid process

2684 dw20.exe
2684 dw20.exe

pid	process
2684	dw20.exe
2684	dw20.exe

Suspicious use of AdjustPrivilegeToken 27 IoCs

Processes:

23177b599c322119b7796bbfd6e8f0005ed1f3a6e51b28c19bfe85706cbc30ea.exeAppLaunch.exedw20.exe

description	pid	process
Token: SeDebugPrivilege	428	23177b599c322119b7796bbfd6e8f0005ed1f3a6e51b28c19bfe85706cbc30ea.exe
Token: SeIncreaseQuotaPrivilege	900	AppLaunch.exe
Token: SeSecurityPrivilege	900	AppLaunch.exe
Token: SeTakeOwnershipPrivilege	900	AppLaunch.exe
Token: SeLoadDriverPrivilege	900	AppLaunch.exe
Token: SeSystemProfilePrivilege	900	AppLaunch.exe
Token: SeSystemtimePrivilege	900	AppLaunch.exe
Token: SeProfSingleProcessPrivilege	900	AppLaunch.exe
Token: SeIncBasePriorityPrivilege	900	AppLaunch.exe
Token: SeCreatePagefilePrivilege	900	AppLaunch.exe
Token: SeBackupPrivilege	900	AppLaunch.exe
Token: SeRestorePrivilege	900	AppLaunch.exe
Token: SeShutdownPrivilege	900	AppLaunch.exe
Token: SeDebugPrivilege	900	AppLaunch.exe
Token: SeSystemEnvironmentPrivilege	900	AppLaunch.exe
Token: SeChangeNotifyPrivilege	900	AppLaunch.exe
Token: SeRemoteShutdownPrivilege	900	AppLaunch.exe
Token: SeUndockPrivilege	900	AppLaunch.exe
Token: SeManageVolumePrivilege	900	AppLaunch.exe
Token: SeImpersonatePrivilege	900	AppLaunch.exe
Token: SeCreateGlobalPrivilege	900	AppLaunch.exe
Token: 33	900	AppLaunch.exe
Token: 34	900	AppLaunch.exe
Token: 35	900	AppLaunch.exe
Token: 36	900	AppLaunch.exe
Token: SeRestorePrivilege	2684	dw20.exe
Token: SeBackupPrivilege	2684	dw20.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

AppLaunch.exe

pid process

900 AppLaunch.exe

pid	process
900	AppLaunch.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

23177b599c322119b7796bbfd6e8f0005ed1f3a6e51b28c19bfe85706cbc30ea.execmd.exe

description	pid	process	target process
PID 428 wrote to memory of 900	428	23177b599c322119b7796bbfd6e8f0005ed1f3a6e51b28c19bfe85706cbc30ea.exe	AppLaunch.exe
PID 428 wrote to memory of 900	428	23177b599c322119b7796bbfd6e8f0005ed1f3a6e51b28c19bfe85706cbc30ea.exe	AppLaunch.exe
PID 428 wrote to memory of 900	428	23177b599c322119b7796bbfd6e8f0005ed1f3a6e51b28c19bfe85706cbc30ea.exe	AppLaunch.exe
PID 428 wrote to memory of 900	428	23177b599c322119b7796bbfd6e8f0005ed1f3a6e51b28c19bfe85706cbc30ea.exe	AppLaunch.exe
PID 428 wrote to memory of 900	428	23177b599c322119b7796bbfd6e8f0005ed1f3a6e51b28c19bfe85706cbc30ea.exe	AppLaunch.exe
PID 428 wrote to memory of 900	428	23177b599c322119b7796bbfd6e8f0005ed1f3a6e51b28c19bfe85706cbc30ea.exe	AppLaunch.exe
PID 428 wrote to memory of 900	428	23177b599c322119b7796bbfd6e8f0005ed1f3a6e51b28c19bfe85706cbc30ea.exe	AppLaunch.exe
PID 428 wrote to memory of 900	428	23177b599c322119b7796bbfd6e8f0005ed1f3a6e51b28c19bfe85706cbc30ea.exe	AppLaunch.exe
PID 428 wrote to memory of 2684	428	23177b599c322119b7796bbfd6e8f0005ed1f3a6e51b28c19bfe85706cbc30ea.exe	dw20.exe
PID 428 wrote to memory of 2684	428	23177b599c322119b7796bbfd6e8f0005ed1f3a6e51b28c19bfe85706cbc30ea.exe	dw20.exe
PID 428 wrote to memory of 2684	428	23177b599c322119b7796bbfd6e8f0005ed1f3a6e51b28c19bfe85706cbc30ea.exe	dw20.exe
PID 428 wrote to memory of 3712	428	23177b599c322119b7796bbfd6e8f0005ed1f3a6e51b28c19bfe85706cbc30ea.exe	cmd.exe
PID 428 wrote to memory of 3712	428	23177b599c322119b7796bbfd6e8f0005ed1f3a6e51b28c19bfe85706cbc30ea.exe	cmd.exe
PID 428 wrote to memory of 3712	428	23177b599c322119b7796bbfd6e8f0005ed1f3a6e51b28c19bfe85706cbc30ea.exe	cmd.exe
PID 3712 wrote to memory of 2980	3712	cmd.exe	reg.exe
PID 3712 wrote to memory of 2980	3712	cmd.exe	reg.exe
PID 3712 wrote to memory of 2980	3712	cmd.exe	reg.exe

C:\Users\Admin\AppData\Local\Temp\23177b599c322119b7796bbfd6e8f0005ed1f3a6e51b28c19bfe85706cbc30ea.exe
"C:\Users\Admin\AppData\Local\Temp\23177b599c322119b7796bbfd6e8f0005ed1f3a6e51b28c19bfe85706cbc30ea.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:428

C:\Windows\Microsoft.NET\Framework\v2.0.50727\AppLaunch.exe
"C:\Windows\Microsoft.NET\Framework\v2.0.50727\AppLaunch.exe"
2⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:900

C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe
dw20.exe -x -s 964
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2684

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c reg add "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "wuauclt" /t REG_SZ /d "C:\Users\Admin\AppData\Local\WinUpdate.exe
2⤵
- Suspicious use of WriteProcessMemory
PID:3712

C:\Windows\SysWOW64\reg.exe
reg add "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "wuauclt" /t REG_SZ /d "C:\Users\Admin\AppData\Local\WinUpdate.exe
3⤵
- Adds Run key to start application
PID:2980

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/900-1-0x00000000004B5670-mapping.dmp

Download
memory/900-0-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/900-2-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/900-3-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2684-4-0x0000000000000000-mapping.dmp

Download
memory/2684-7-0x0000000002A50000-0x0000000002A51000-memory.dmp

Filesize
4KB

Download
memory/2684-8-0x0000000002A50000-0x0000000002A51000-memory.dmp

Filesize
4KB

Download
memory/2684-11-0x0000000003240000-0x0000000003241000-memory.dmp

Filesize
4KB

Download
memory/2684-10-0x0000000000A50000-0x0000000000A51000-memory.dmp

Filesize
4KB

Download
memory/2684-12-0x0000000000A50000-0x0000000000A51000-memory.dmp

Filesize
4KB

Download
memory/2684-13-0x0000000000A50000-0x0000000000A51000-memory.dmp

Filesize
4KB

Download
memory/2684-14-0x0000000000A50000-0x0000000000A51000-memory.dmp

Filesize
4KB

Download
memory/2684-15-0x0000000000A50000-0x0000000000A51000-memory.dmp

Filesize
4KB

Download
memory/2684-16-0x0000000000A50000-0x0000000000A51000-memory.dmp

Filesize
4KB

Download
memory/2684-17-0x0000000000A50000-0x0000000000A51000-memory.dmp

Filesize
4KB

Download
memory/2684-18-0x0000000000A50000-0x0000000000A51000-memory.dmp

Filesize
4KB

Download
memory/2684-19-0x0000000000A50000-0x0000000000A51000-memory.dmp

Filesize
4KB

Download
memory/2684-20-0x0000000000A50000-0x0000000000A51000-memory.dmp

Filesize
4KB

Download
memory/2684-22-0x0000000000A50000-0x0000000000A51000-memory.dmp

Filesize
4KB

Download
memory/2684-21-0x0000000000A50000-0x0000000000A51000-memory.dmp

Filesize
4KB

Download
memory/2684-23-0x0000000000A50000-0x0000000000A51000-memory.dmp

Filesize
4KB

Download
memory/2684-24-0x0000000000A50000-0x0000000000A51000-memory.dmp

Filesize
4KB

Download
memory/2684-25-0x0000000000A50000-0x0000000000A51000-memory.dmp

Filesize
4KB

Download
memory/2684-26-0x0000000000A50000-0x0000000000A51000-memory.dmp

Filesize
4KB

Download
memory/2684-27-0x0000000000A50000-0x0000000000A51000-memory.dmp

Filesize
4KB

Download
memory/2684-28-0x0000000000A50000-0x0000000000A51000-memory.dmp

Filesize
4KB

Download
memory/2684-29-0x0000000000A50000-0x0000000000A51000-memory.dmp

Filesize
4KB

Download
memory/2684-30-0x0000000000A50000-0x0000000000A51000-memory.dmp

Filesize
4KB

Download
memory/2684-31-0x0000000000A50000-0x0000000000A51000-memory.dmp

Filesize
4KB

Download
memory/2684-32-0x0000000000A50000-0x0000000000A51000-memory.dmp

Filesize
4KB

Download
memory/2684-33-0x0000000000A50000-0x0000000000A51000-memory.dmp

Filesize
4KB

Download
memory/2684-34-0x0000000000A50000-0x0000000000A51000-memory.dmp

Filesize
4KB

Download
memory/2684-35-0x0000000000A50000-0x0000000000A51000-memory.dmp

Filesize
4KB

Download
memory/2684-36-0x0000000000A50000-0x0000000000A51000-memory.dmp

Filesize
4KB

Download
memory/2684-37-0x0000000000A50000-0x0000000000A51000-memory.dmp

Filesize
4KB

Download
memory/2684-38-0x0000000000A50000-0x0000000000A51000-memory.dmp

Filesize
4KB

Download
memory/2684-39-0x0000000000A50000-0x0000000000A51000-memory.dmp

Filesize
4KB

Download
memory/2684-40-0x0000000000A50000-0x0000000000A51000-memory.dmp

Filesize
4KB

Download
memory/2684-41-0x0000000000A50000-0x0000000000A51000-memory.dmp

Filesize
4KB

Download
memory/2684-42-0x0000000000A50000-0x0000000000A51000-memory.dmp

Filesize
4KB

Download
memory/2684-43-0x0000000000A50000-0x0000000000A51000-memory.dmp

Filesize
4KB

Download
memory/2684-44-0x0000000000A50000-0x0000000000A51000-memory.dmp

Filesize
4KB

Download
memory/2684-45-0x0000000000A50000-0x0000000000A51000-memory.dmp

Filesize
4KB

Download
memory/2684-46-0x0000000000A50000-0x0000000000A51000-memory.dmp

Filesize
4KB

Download
memory/2684-47-0x0000000000A50000-0x0000000000A51000-memory.dmp

Filesize
4KB

Download
memory/2684-48-0x0000000000A50000-0x0000000000A51000-memory.dmp

Filesize
4KB

Download
memory/2684-49-0x0000000000A50000-0x0000000000A51000-memory.dmp

Filesize
4KB

Download
memory/2684-50-0x0000000000A50000-0x0000000000A51000-memory.dmp

Filesize
4KB

Download
memory/2684-51-0x0000000000A50000-0x0000000000A51000-memory.dmp

Filesize
4KB

Download
memory/2684-52-0x0000000000A50000-0x0000000000A51000-memory.dmp

Filesize
4KB

Download
memory/2684-53-0x0000000000A50000-0x0000000000A51000-memory.dmp

Filesize
4KB

Download
memory/2684-54-0x0000000000A50000-0x0000000000A51000-memory.dmp

Filesize
4KB

Download
memory/2684-55-0x0000000000A50000-0x0000000000A51000-memory.dmp

Filesize
4KB

Download
memory/2684-56-0x0000000000A50000-0x0000000000A51000-memory.dmp

Filesize
4KB

Download
memory/2684-57-0x0000000000A50000-0x0000000000A51000-memory.dmp

Filesize
4KB

Download
memory/2684-58-0x0000000000A50000-0x0000000000A51000-memory.dmp

Filesize
4KB

Download
memory/2684-59-0x0000000000A50000-0x0000000000A51000-memory.dmp

Filesize
4KB

Download
memory/2684-60-0x0000000000A50000-0x0000000000A51000-memory.dmp

Filesize
4KB

Download
memory/2684-61-0x0000000000A50000-0x0000000000A51000-memory.dmp

Filesize
4KB

Download
memory/2684-62-0x0000000000A50000-0x0000000000A51000-memory.dmp

Filesize
4KB

Download
memory/2684-63-0x0000000000A50000-0x0000000000A51000-memory.dmp

Filesize
4KB

Download
memory/2684-64-0x0000000000A50000-0x0000000000A51000-memory.dmp

Filesize
4KB

Download
memory/2684-65-0x0000000000A50000-0x0000000000A51000-memory.dmp

Filesize
4KB

Download
memory/2684-66-0x0000000000A50000-0x0000000000A51000-memory.dmp

Filesize
4KB

Download
memory/2684-67-0x0000000000A50000-0x0000000000A51000-memory.dmp

Filesize
4KB

Download
memory/2684-68-0x0000000000A50000-0x0000000000A51000-memory.dmp

Filesize
4KB

Download
memory/2684-69-0x0000000000A50000-0x0000000000A51000-memory.dmp

Filesize
4KB

Download
memory/2684-70-0x0000000000A50000-0x0000000000A51000-memory.dmp

Filesize
4KB

Download
memory/2980-6-0x0000000000000000-mapping.dmp

Download
memory/3712-5-0x0000000000000000-mapping.dmp

Download