darkcomet | 2171bac5512cef55ce1ffcf96bf1395d9a826f29bcff90a6c4cfe794d615575a

General

Target

2171bac5512cef55ce1ffcf96bf1395d9a826f29bcff90a6c4cfe794d615575a.exe
Size

252KB
MD5

a0303b31a98b225c23583db05b31bb78
SHA1

1d2843958d2fb7873763be62df48a4ad9d281e0a
SHA256

2171bac5512cef55ce1ffcf96bf1395d9a826f29bcff90a6c4cfe794d615575a
SHA512

b0ea5c2f2b67412951a825a56e36cf4e749843bfbae4f86588cc3a49203886c399d2a040a83db74ccf79b13fbbc3ccd398b916ef1bee2ae75ca5bfade152729b

Score

10^/10

darkcomet persistence rat trojan upx

Malware Config

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:

2171bac5512cef55ce1ffcf96bf1395d9a826f29bcff90a6c4cfe794d615575a.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	2171bac5512cef55ce1ffcf96bf1395d9a826f29bcff90a6c4cfe794d615575a.exe

Executes dropped EXE 1 IoCs

Processes:

msdcsc.exe

pid process

1200 msdcsc.exe

pid	process
1200	msdcsc.exe

UPX packed file 4 IoCs

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

upx

Processes:

resource	yara_rule
\Users\Admin\Documents\MSDCSC\msdcsc.exe	upx
\Users\Admin\Documents\MSDCSC\msdcsc.exe	upx
C:\Users\Admin\Documents\MSDCSC\msdcsc.exe	upx
C:\Users\Admin\Documents\MSDCSC\msdcsc.exe	upx

Deletes itself 1 IoCs

Processes:

notepad.exe

pid process

2036 notepad.exe

pid	process
2036	notepad.exe

Loads dropped DLL 2 IoCs

Processes:

2171bac5512cef55ce1ffcf96bf1395d9a826f29bcff90a6c4cfe794d615575a.exe

pid	process
288	2171bac5512cef55ce1ffcf96bf1395d9a826f29bcff90a6c4cfe794d615575a.exe
288	2171bac5512cef55ce1ffcf96bf1395d9a826f29bcff90a6c4cfe794d615575a.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

2171bac5512cef55ce1ffcf96bf1395d9a826f29bcff90a6c4cfe794d615575a.exemsdcsc.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	2171bac5512cef55ce1ffcf96bf1395d9a826f29bcff90a6c4cfe794d615575a.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	msdcsc.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:

msdcsc.exe

pid process

1200 msdcsc.exe

pid	process
1200	msdcsc.exe

Suspicious use of AdjustPrivilegeToken 46 IoCs

Processes:

2171bac5512cef55ce1ffcf96bf1395d9a826f29bcff90a6c4cfe794d615575a.exemsdcsc.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	288	2171bac5512cef55ce1ffcf96bf1395d9a826f29bcff90a6c4cfe794d615575a.exe
Token: SeSecurityPrivilege	288	2171bac5512cef55ce1ffcf96bf1395d9a826f29bcff90a6c4cfe794d615575a.exe
Token: SeTakeOwnershipPrivilege	288	2171bac5512cef55ce1ffcf96bf1395d9a826f29bcff90a6c4cfe794d615575a.exe
Token: SeLoadDriverPrivilege	288	2171bac5512cef55ce1ffcf96bf1395d9a826f29bcff90a6c4cfe794d615575a.exe
Token: SeSystemProfilePrivilege	288	2171bac5512cef55ce1ffcf96bf1395d9a826f29bcff90a6c4cfe794d615575a.exe
Token: SeSystemtimePrivilege	288	2171bac5512cef55ce1ffcf96bf1395d9a826f29bcff90a6c4cfe794d615575a.exe
Token: SeProfSingleProcessPrivilege	288	2171bac5512cef55ce1ffcf96bf1395d9a826f29bcff90a6c4cfe794d615575a.exe
Token: SeIncBasePriorityPrivilege	288	2171bac5512cef55ce1ffcf96bf1395d9a826f29bcff90a6c4cfe794d615575a.exe
Token: SeCreatePagefilePrivilege	288	2171bac5512cef55ce1ffcf96bf1395d9a826f29bcff90a6c4cfe794d615575a.exe
Token: SeBackupPrivilege	288	2171bac5512cef55ce1ffcf96bf1395d9a826f29bcff90a6c4cfe794d615575a.exe
Token: SeRestorePrivilege	288	2171bac5512cef55ce1ffcf96bf1395d9a826f29bcff90a6c4cfe794d615575a.exe
Token: SeShutdownPrivilege	288	2171bac5512cef55ce1ffcf96bf1395d9a826f29bcff90a6c4cfe794d615575a.exe
Token: SeDebugPrivilege	288	2171bac5512cef55ce1ffcf96bf1395d9a826f29bcff90a6c4cfe794d615575a.exe
Token: SeSystemEnvironmentPrivilege	288	2171bac5512cef55ce1ffcf96bf1395d9a826f29bcff90a6c4cfe794d615575a.exe
Token: SeChangeNotifyPrivilege	288	2171bac5512cef55ce1ffcf96bf1395d9a826f29bcff90a6c4cfe794d615575a.exe
Token: SeRemoteShutdownPrivilege	288	2171bac5512cef55ce1ffcf96bf1395d9a826f29bcff90a6c4cfe794d615575a.exe
Token: SeUndockPrivilege	288	2171bac5512cef55ce1ffcf96bf1395d9a826f29bcff90a6c4cfe794d615575a.exe
Token: SeManageVolumePrivilege	288	2171bac5512cef55ce1ffcf96bf1395d9a826f29bcff90a6c4cfe794d615575a.exe
Token: SeImpersonatePrivilege	288	2171bac5512cef55ce1ffcf96bf1395d9a826f29bcff90a6c4cfe794d615575a.exe
Token: SeCreateGlobalPrivilege	288	2171bac5512cef55ce1ffcf96bf1395d9a826f29bcff90a6c4cfe794d615575a.exe
Token: 33	288	2171bac5512cef55ce1ffcf96bf1395d9a826f29bcff90a6c4cfe794d615575a.exe
Token: 34	288	2171bac5512cef55ce1ffcf96bf1395d9a826f29bcff90a6c4cfe794d615575a.exe
Token: 35	288	2171bac5512cef55ce1ffcf96bf1395d9a826f29bcff90a6c4cfe794d615575a.exe
Token: SeIncreaseQuotaPrivilege	1200	msdcsc.exe
Token: SeSecurityPrivilege	1200	msdcsc.exe
Token: SeTakeOwnershipPrivilege	1200	msdcsc.exe
Token: SeLoadDriverPrivilege	1200	msdcsc.exe
Token: SeSystemProfilePrivilege	1200	msdcsc.exe
Token: SeSystemtimePrivilege	1200	msdcsc.exe
Token: SeProfSingleProcessPrivilege	1200	msdcsc.exe
Token: SeIncBasePriorityPrivilege	1200	msdcsc.exe
Token: SeCreatePagefilePrivilege	1200	msdcsc.exe
Token: SeBackupPrivilege	1200	msdcsc.exe
Token: SeRestorePrivilege	1200	msdcsc.exe
Token: SeShutdownPrivilege	1200	msdcsc.exe
Token: SeDebugPrivilege	1200	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	1200	msdcsc.exe
Token: SeChangeNotifyPrivilege	1200	msdcsc.exe
Token: SeRemoteShutdownPrivilege	1200	msdcsc.exe
Token: SeUndockPrivilege	1200	msdcsc.exe
Token: SeManageVolumePrivilege	1200	msdcsc.exe
Token: SeImpersonatePrivilege	1200	msdcsc.exe
Token: SeCreateGlobalPrivilege	1200	msdcsc.exe
Token: 33	1200	msdcsc.exe
Token: 34	1200	msdcsc.exe
Token: 35	1200	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

msdcsc.exe

pid process

1200 msdcsc.exe

pid	process
1200	msdcsc.exe

Suspicious use of WriteProcessMemory 53 IoCs

Processes:

2171bac5512cef55ce1ffcf96bf1395d9a826f29bcff90a6c4cfe794d615575a.exemsdcsc.exe

description	pid	process	target process
PID 288 wrote to memory of 2036	288	2171bac5512cef55ce1ffcf96bf1395d9a826f29bcff90a6c4cfe794d615575a.exe	notepad.exe
PID 288 wrote to memory of 2036	288	2171bac5512cef55ce1ffcf96bf1395d9a826f29bcff90a6c4cfe794d615575a.exe	notepad.exe
PID 288 wrote to memory of 2036	288	2171bac5512cef55ce1ffcf96bf1395d9a826f29bcff90a6c4cfe794d615575a.exe	notepad.exe
PID 288 wrote to memory of 2036	288	2171bac5512cef55ce1ffcf96bf1395d9a826f29bcff90a6c4cfe794d615575a.exe	notepad.exe
PID 288 wrote to memory of 2036	288	2171bac5512cef55ce1ffcf96bf1395d9a826f29bcff90a6c4cfe794d615575a.exe	notepad.exe
PID 288 wrote to memory of 2036	288	2171bac5512cef55ce1ffcf96bf1395d9a826f29bcff90a6c4cfe794d615575a.exe	notepad.exe
PID 288 wrote to memory of 2036	288	2171bac5512cef55ce1ffcf96bf1395d9a826f29bcff90a6c4cfe794d615575a.exe	notepad.exe
PID 288 wrote to memory of 2036	288	2171bac5512cef55ce1ffcf96bf1395d9a826f29bcff90a6c4cfe794d615575a.exe	notepad.exe
PID 288 wrote to memory of 2036	288	2171bac5512cef55ce1ffcf96bf1395d9a826f29bcff90a6c4cfe794d615575a.exe	notepad.exe
PID 288 wrote to memory of 2036	288	2171bac5512cef55ce1ffcf96bf1395d9a826f29bcff90a6c4cfe794d615575a.exe	notepad.exe
PID 288 wrote to memory of 2036	288	2171bac5512cef55ce1ffcf96bf1395d9a826f29bcff90a6c4cfe794d615575a.exe	notepad.exe
PID 288 wrote to memory of 2036	288	2171bac5512cef55ce1ffcf96bf1395d9a826f29bcff90a6c4cfe794d615575a.exe	notepad.exe
PID 288 wrote to memory of 2036	288	2171bac5512cef55ce1ffcf96bf1395d9a826f29bcff90a6c4cfe794d615575a.exe	notepad.exe
PID 288 wrote to memory of 2036	288	2171bac5512cef55ce1ffcf96bf1395d9a826f29bcff90a6c4cfe794d615575a.exe	notepad.exe
PID 288 wrote to memory of 2036	288	2171bac5512cef55ce1ffcf96bf1395d9a826f29bcff90a6c4cfe794d615575a.exe	notepad.exe
PID 288 wrote to memory of 2036	288	2171bac5512cef55ce1ffcf96bf1395d9a826f29bcff90a6c4cfe794d615575a.exe	notepad.exe
PID 288 wrote to memory of 2036	288	2171bac5512cef55ce1ffcf96bf1395d9a826f29bcff90a6c4cfe794d615575a.exe	notepad.exe
PID 288 wrote to memory of 2036	288	2171bac5512cef55ce1ffcf96bf1395d9a826f29bcff90a6c4cfe794d615575a.exe	notepad.exe
PID 288 wrote to memory of 1200	288	2171bac5512cef55ce1ffcf96bf1395d9a826f29bcff90a6c4cfe794d615575a.exe	msdcsc.exe
PID 288 wrote to memory of 1200	288	2171bac5512cef55ce1ffcf96bf1395d9a826f29bcff90a6c4cfe794d615575a.exe	msdcsc.exe
PID 288 wrote to memory of 1200	288	2171bac5512cef55ce1ffcf96bf1395d9a826f29bcff90a6c4cfe794d615575a.exe	msdcsc.exe
PID 288 wrote to memory of 1200	288	2171bac5512cef55ce1ffcf96bf1395d9a826f29bcff90a6c4cfe794d615575a.exe	msdcsc.exe
PID 1200 wrote to memory of 1968	1200	msdcsc.exe	iexplore.exe
PID 1200 wrote to memory of 1968	1200	msdcsc.exe	iexplore.exe
PID 1200 wrote to memory of 1968	1200	msdcsc.exe	iexplore.exe
PID 1200 wrote to memory of 1968	1200	msdcsc.exe	iexplore.exe
PID 1200 wrote to memory of 1884	1200	msdcsc.exe	explorer.exe
PID 1200 wrote to memory of 1884	1200	msdcsc.exe	explorer.exe
PID 1200 wrote to memory of 1884	1200	msdcsc.exe	explorer.exe
PID 1200 wrote to memory of 1884	1200	msdcsc.exe	explorer.exe
PID 1200 wrote to memory of 1872	1200	msdcsc.exe	notepad.exe
PID 1200 wrote to memory of 1872	1200	msdcsc.exe	notepad.exe
PID 1200 wrote to memory of 1872	1200	msdcsc.exe	notepad.exe
PID 1200 wrote to memory of 1872	1200	msdcsc.exe	notepad.exe
PID 1200 wrote to memory of 1872	1200	msdcsc.exe	notepad.exe
PID 1200 wrote to memory of 1872	1200	msdcsc.exe	notepad.exe
PID 1200 wrote to memory of 1872	1200	msdcsc.exe	notepad.exe
PID 1200 wrote to memory of 1872	1200	msdcsc.exe	notepad.exe
PID 1200 wrote to memory of 1872	1200	msdcsc.exe	notepad.exe
PID 1200 wrote to memory of 1872	1200	msdcsc.exe	notepad.exe
PID 1200 wrote to memory of 1872	1200	msdcsc.exe	notepad.exe
PID 1200 wrote to memory of 1872	1200	msdcsc.exe	notepad.exe
PID 1200 wrote to memory of 1872	1200	msdcsc.exe	notepad.exe
PID 1200 wrote to memory of 1872	1200	msdcsc.exe	notepad.exe
PID 1200 wrote to memory of 1872	1200	msdcsc.exe	notepad.exe
PID 1200 wrote to memory of 1872	1200	msdcsc.exe	notepad.exe
PID 1200 wrote to memory of 1872	1200	msdcsc.exe	notepad.exe
PID 1200 wrote to memory of 1872	1200	msdcsc.exe	notepad.exe
PID 1200 wrote to memory of 1872	1200	msdcsc.exe	notepad.exe
PID 1200 wrote to memory of 1872	1200	msdcsc.exe	notepad.exe
PID 1200 wrote to memory of 1872	1200	msdcsc.exe	notepad.exe
PID 1200 wrote to memory of 1872	1200	msdcsc.exe	notepad.exe
PID 1200 wrote to memory of 1872	1200	msdcsc.exe	notepad.exe

C:\Users\Admin\AppData\Local\Temp\2171bac5512cef55ce1ffcf96bf1395d9a826f29bcff90a6c4cfe794d615575a.exe
"C:\Users\Admin\AppData\Local\Temp\2171bac5512cef55ce1ffcf96bf1395d9a826f29bcff90a6c4cfe794d615575a.exe"
1⤵
- Modifies WinLogon for persistence
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:288

C:\Windows\SysWOW64\notepad.exe
notepad
2⤵
- Deletes itself
PID:2036

C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
"C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
2⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1200

C:\Program Files (x86)\Internet Explorer\iexplore.exe
"C:\Program Files (x86)\Internet Explorer\iexplore.exe"
3⤵
PID:1968

C:\Windows\explorer.exe
"C:\Windows\explorer.exe"
3⤵
PID:1884

C:\Windows\SysWOW64\notepad.exe
notepad
3⤵
PID:1872

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

1

T1004

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
MD5
a0303b31a98b225c23583db05b31bb78

SHA1
1d2843958d2fb7873763be62df48a4ad9d281e0a

SHA256
2171bac5512cef55ce1ffcf96bf1395d9a826f29bcff90a6c4cfe794d615575a

SHA512
b0ea5c2f2b67412951a825a56e36cf4e749843bfbae4f86588cc3a49203886c399d2a040a83db74ccf79b13fbbc3ccd398b916ef1bee2ae75ca5bfade152729b

Download Submit
C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
MD5
a0303b31a98b225c23583db05b31bb78

SHA1
1d2843958d2fb7873763be62df48a4ad9d281e0a

SHA256
2171bac5512cef55ce1ffcf96bf1395d9a826f29bcff90a6c4cfe794d615575a

SHA512
b0ea5c2f2b67412951a825a56e36cf4e749843bfbae4f86588cc3a49203886c399d2a040a83db74ccf79b13fbbc3ccd398b916ef1bee2ae75ca5bfade152729b

Download Submit
\Users\Admin\Documents\MSDCSC\msdcsc.exe
MD5
a0303b31a98b225c23583db05b31bb78

SHA1
1d2843958d2fb7873763be62df48a4ad9d281e0a

SHA256
2171bac5512cef55ce1ffcf96bf1395d9a826f29bcff90a6c4cfe794d615575a

SHA512
b0ea5c2f2b67412951a825a56e36cf4e749843bfbae4f86588cc3a49203886c399d2a040a83db74ccf79b13fbbc3ccd398b916ef1bee2ae75ca5bfade152729b

Download Submit
\Users\Admin\Documents\MSDCSC\msdcsc.exe
MD5
a0303b31a98b225c23583db05b31bb78

SHA1
1d2843958d2fb7873763be62df48a4ad9d281e0a

SHA256
2171bac5512cef55ce1ffcf96bf1395d9a826f29bcff90a6c4cfe794d615575a

SHA512
b0ea5c2f2b67412951a825a56e36cf4e749843bfbae4f86588cc3a49203886c399d2a040a83db74ccf79b13fbbc3ccd398b916ef1bee2ae75ca5bfade152729b

Download Submit
memory/1200-5-0x0000000000000000-mapping.dmp

Download
memory/1872-8-0x0000000000000000-mapping.dmp

Download
memory/1872-9-0x0000000000220000-0x0000000000221000-memory.dmp

Filesize
4KB

Download
memory/1872-10-0x0000000000000000-mapping.dmp

Download
memory/2036-0-0x0000000000000000-mapping.dmp

Download
memory/2036-1-0x0000000000190000-0x0000000000191000-memory.dmp

Filesize
4KB

Download
memory/2036-2-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads