darkcomet | 1f9ff29afc60eebf41511416db4988007f3d041744574ac144f88eaf82e52b25 | Triage

Analysis

max time kernel
117s
max time network
127s
platform
windows7_x64
resource
win7
submitted
24-06-2020 14:56

Sharing

Report Analysis Logs

General

Target

1f9ff29afc60eebf41511416db4988007f3d041744574ac144f88eaf82e52b25.exe
Size

1.5MB
MD5

a2d1d72360a93ba7ac24a2abe420c8fa
SHA1

43344ec45ed137deec2b9c8e38eeb1c6d54b4cab
SHA256

1f9ff29afc60eebf41511416db4988007f3d041744574ac144f88eaf82e52b25
SHA512

5f64c4dc8d5ba47ed73da71bcbc040c2f9acc8e48daf31c485c2f988df11c968fd235de779f517e208044e6aa88fe8a30cdb70c10f29557ebaba7b95b88ac76f

Score

10^/10

darkcomet guest16 persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

192.168.42.149:1604

Mutex

DC_MUTEX-DHCS0WN

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
PeRqGsgi7a6R
install
true
offline_keylogger
true
persistence
true
reg_key
MicroUpdate

Signatures

Darkcomet
DarkComet is a remote access trojan (RAT) developed by Jean-Pierre Lesueur.
trojan rat darkcomet
Uses the VBS compiler for execution 1 TTPs

Scripting
T1064

Adds Run key to start application 2 TTPs 2 IoCs

Registry Run Keys / Startup Folder

Modify Registry

Processes:

1f9ff29afc60eebf41511416db4988007f3d041744574ac144f88eaf82e52b25.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-1131729243-447456001-3632642222-1000\Software\Microsoft\Windows\CurrentVersion\Run	1f9ff29afc60eebf41511416db4988007f3d041744574ac144f88eaf82e52b25.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1131729243-447456001-3632642222-1000\Software\Microsoft\Windows\CurrentVersion\Run\Microsoft@Service = "C:\\Users\\Admin\\AppData\\Local\\Temp\\1f9ff29afc60eebf41511416db4988007f3d041744574ac144f88eaf82e52b25.exe"	1f9ff29afc60eebf41511416db4988007f3d041744574ac144f88eaf82e52b25.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

1f9ff29afc60eebf41511416db4988007f3d041744574ac144f88eaf82e52b25.exe

description	pid	process	target process
PID 1496 set thread context of 1560	1496	1f9ff29afc60eebf41511416db4988007f3d041744574ac144f88eaf82e52b25.exe	vbc.exe

Suspicious use of FindShellTrayWindow 3 IoCs

Processes:

1f9ff29afc60eebf41511416db4988007f3d041744574ac144f88eaf82e52b25.exe

pid	process
1496	1f9ff29afc60eebf41511416db4988007f3d041744574ac144f88eaf82e52b25.exe
1496	1f9ff29afc60eebf41511416db4988007f3d041744574ac144f88eaf82e52b25.exe
1496	1f9ff29afc60eebf41511416db4988007f3d041744574ac144f88eaf82e52b25.exe

Suspicious use of SendNotifyMessage 3 IoCs

Processes:

1f9ff29afc60eebf41511416db4988007f3d041744574ac144f88eaf82e52b25.exe

pid	process
1496	1f9ff29afc60eebf41511416db4988007f3d041744574ac144f88eaf82e52b25.exe
1496	1f9ff29afc60eebf41511416db4988007f3d041744574ac144f88eaf82e52b25.exe
1496	1f9ff29afc60eebf41511416db4988007f3d041744574ac144f88eaf82e52b25.exe

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

1f9ff29afc60eebf41511416db4988007f3d041744574ac144f88eaf82e52b25.exe

description	pid	process	target process
PID 1496 wrote to memory of 1560	1496	1f9ff29afc60eebf41511416db4988007f3d041744574ac144f88eaf82e52b25.exe	vbc.exe
PID 1496 wrote to memory of 1560	1496	1f9ff29afc60eebf41511416db4988007f3d041744574ac144f88eaf82e52b25.exe	vbc.exe
PID 1496 wrote to memory of 1560	1496	1f9ff29afc60eebf41511416db4988007f3d041744574ac144f88eaf82e52b25.exe	vbc.exe
PID 1496 wrote to memory of 1560	1496	1f9ff29afc60eebf41511416db4988007f3d041744574ac144f88eaf82e52b25.exe	vbc.exe
PID 1496 wrote to memory of 1560	1496	1f9ff29afc60eebf41511416db4988007f3d041744574ac144f88eaf82e52b25.exe	vbc.exe
PID 1496 wrote to memory of 1560	1496	1f9ff29afc60eebf41511416db4988007f3d041744574ac144f88eaf82e52b25.exe	vbc.exe
PID 1496 wrote to memory of 1560	1496	1f9ff29afc60eebf41511416db4988007f3d041744574ac144f88eaf82e52b25.exe	vbc.exe
PID 1496 wrote to memory of 1560	1496	1f9ff29afc60eebf41511416db4988007f3d041744574ac144f88eaf82e52b25.exe	vbc.exe
PID 1496 wrote to memory of 1560	1496	1f9ff29afc60eebf41511416db4988007f3d041744574ac144f88eaf82e52b25.exe	vbc.exe
PID 1496 wrote to memory of 1560	1496	1f9ff29afc60eebf41511416db4988007f3d041744574ac144f88eaf82e52b25.exe	vbc.exe
PID 1496 wrote to memory of 1560	1496	1f9ff29afc60eebf41511416db4988007f3d041744574ac144f88eaf82e52b25.exe	vbc.exe
PID 1496 wrote to memory of 1560	1496	1f9ff29afc60eebf41511416db4988007f3d041744574ac144f88eaf82e52b25.exe	vbc.exe
PID 1496 wrote to memory of 1560	1496	1f9ff29afc60eebf41511416db4988007f3d041744574ac144f88eaf82e52b25.exe	vbc.exe

C:\Users\Admin\AppData\Local\Temp\1f9ff29afc60eebf41511416db4988007f3d041744574ac144f88eaf82e52b25.exe
"C:\Users\Admin\AppData\Local\Temp\1f9ff29afc60eebf41511416db4988007f3d041744574ac144f88eaf82e52b25.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1496

C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
2⤵
PID:1560

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scripting

Persistence

Registry Run Keys / Startup Folder

Privilege Escalation

Defense Evasion

Modify Registry

Scripting

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1560-0-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

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memory/1560-1-0x000000000048F888-mapping.dmp

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