darkcomet | f34ecc9a2b4cc433afae06d4e6dee9cf9b30c78b2349ac190855c3b79de8d565

General

Target

f34ecc9a2b4cc433afae06d4e6dee9cf9b30c78b2349ac190855c3b79de8d565.exe
Size

965KB
MD5

d48e65382aa5038a7b5006635b32b951
SHA1

69462a33f4c19711386f07ea3fb0cbe0d9a697cd
SHA256

f34ecc9a2b4cc433afae06d4e6dee9cf9b30c78b2349ac190855c3b79de8d565
SHA512

591b21d638a2591ba1c60165f2207e47fd5c52d681c984edb5e705ebf9b2bd7565e94309f8899473b2f3b028236304a5fdd41223c4d9145314d72b048bdbae10
SSDEEP

24576:QjanCAfUaJYNo5/XOqoa4Q+f1mIMVlzGqLD6h2Zg3:Qj2CNBHClLDOb

Score

10^/10

darkcomet mohamad persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

mohamad

C2

monasara4.no-ip.org:1604

Mutex

DC_MUTEX-W41GGVQ

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
PTslBCtLGc65
install
true
offline_keylogger
true
persistence
false
reg_key
MicroUpdate

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:

vbc.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"	vbc.exe

Executes dropped EXE 1 IoCs

Processes:

msdcsc.exe

pid process

1416 msdcsc.exe
Loads dropped DLL 1 IoCs

Processes:

vbc.exe

pid process

1736 vbc.exe
Uses the VBS compiler for execution 1 TTPs

Scripting
T1064

pid	process
1416	msdcsc.exe

pid	process
1736	vbc.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

vbc.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	vbc.exe

Drops file in System32 directory 2 IoCs

Processes:

f34ecc9a2b4cc433afae06d4e6dee9cf9b30c78b2349ac190855c3b79de8d565.exe

description	ioc	process
File created	C:\Windows\SysWOW64\authctl.exe	f34ecc9a2b4cc433afae06d4e6dee9cf9b30c78b2349ac190855c3b79de8d565.exe
File opened for modification	C:\Windows\SysWOW64\authctl.exe	f34ecc9a2b4cc433afae06d4e6dee9cf9b30c78b2349ac190855c3b79de8d565.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

f34ecc9a2b4cc433afae06d4e6dee9cf9b30c78b2349ac190855c3b79de8d565.exe

description	pid	process	target process
PID 1120 set thread context of 1736	1120	f34ecc9a2b4cc433afae06d4e6dee9cf9b30c78b2349ac190855c3b79de8d565.exe	vbc.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

dw20.exe

pid process

1016 dw20.exe

pid	process
1016	dw20.exe

Suspicious use of AdjustPrivilegeToken 23 IoCs

Processes:

vbc.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	1736	vbc.exe
Token: SeSecurityPrivilege	1736	vbc.exe
Token: SeTakeOwnershipPrivilege	1736	vbc.exe
Token: SeLoadDriverPrivilege	1736	vbc.exe
Token: SeSystemProfilePrivilege	1736	vbc.exe
Token: SeSystemtimePrivilege	1736	vbc.exe
Token: SeProfSingleProcessPrivilege	1736	vbc.exe
Token: SeIncBasePriorityPrivilege	1736	vbc.exe
Token: SeCreatePagefilePrivilege	1736	vbc.exe
Token: SeBackupPrivilege	1736	vbc.exe
Token: SeRestorePrivilege	1736	vbc.exe
Token: SeShutdownPrivilege	1736	vbc.exe
Token: SeDebugPrivilege	1736	vbc.exe
Token: SeSystemEnvironmentPrivilege	1736	vbc.exe
Token: SeChangeNotifyPrivilege	1736	vbc.exe
Token: SeRemoteShutdownPrivilege	1736	vbc.exe
Token: SeUndockPrivilege	1736	vbc.exe
Token: SeManageVolumePrivilege	1736	vbc.exe
Token: SeImpersonatePrivilege	1736	vbc.exe
Token: SeCreateGlobalPrivilege	1736	vbc.exe
Token: 33	1736	vbc.exe
Token: 34	1736	vbc.exe
Token: 35	1736	vbc.exe

Suspicious use of WriteProcessMemory 21 IoCs

Processes:

f34ecc9a2b4cc433afae06d4e6dee9cf9b30c78b2349ac190855c3b79de8d565.exevbc.exe

description	pid	process	target process
PID 1120 wrote to memory of 1736	1120	f34ecc9a2b4cc433afae06d4e6dee9cf9b30c78b2349ac190855c3b79de8d565.exe	vbc.exe
PID 1120 wrote to memory of 1736	1120	f34ecc9a2b4cc433afae06d4e6dee9cf9b30c78b2349ac190855c3b79de8d565.exe	vbc.exe
PID 1120 wrote to memory of 1736	1120	f34ecc9a2b4cc433afae06d4e6dee9cf9b30c78b2349ac190855c3b79de8d565.exe	vbc.exe
PID 1120 wrote to memory of 1736	1120	f34ecc9a2b4cc433afae06d4e6dee9cf9b30c78b2349ac190855c3b79de8d565.exe	vbc.exe
PID 1120 wrote to memory of 1736	1120	f34ecc9a2b4cc433afae06d4e6dee9cf9b30c78b2349ac190855c3b79de8d565.exe	vbc.exe
PID 1120 wrote to memory of 1736	1120	f34ecc9a2b4cc433afae06d4e6dee9cf9b30c78b2349ac190855c3b79de8d565.exe	vbc.exe
PID 1120 wrote to memory of 1736	1120	f34ecc9a2b4cc433afae06d4e6dee9cf9b30c78b2349ac190855c3b79de8d565.exe	vbc.exe
PID 1120 wrote to memory of 1736	1120	f34ecc9a2b4cc433afae06d4e6dee9cf9b30c78b2349ac190855c3b79de8d565.exe	vbc.exe
PID 1120 wrote to memory of 1736	1120	f34ecc9a2b4cc433afae06d4e6dee9cf9b30c78b2349ac190855c3b79de8d565.exe	vbc.exe
PID 1120 wrote to memory of 1736	1120	f34ecc9a2b4cc433afae06d4e6dee9cf9b30c78b2349ac190855c3b79de8d565.exe	vbc.exe
PID 1120 wrote to memory of 1736	1120	f34ecc9a2b4cc433afae06d4e6dee9cf9b30c78b2349ac190855c3b79de8d565.exe	vbc.exe
PID 1120 wrote to memory of 1736	1120	f34ecc9a2b4cc433afae06d4e6dee9cf9b30c78b2349ac190855c3b79de8d565.exe	vbc.exe
PID 1120 wrote to memory of 1736	1120	f34ecc9a2b4cc433afae06d4e6dee9cf9b30c78b2349ac190855c3b79de8d565.exe	vbc.exe
PID 1120 wrote to memory of 1016	1120	f34ecc9a2b4cc433afae06d4e6dee9cf9b30c78b2349ac190855c3b79de8d565.exe	dw20.exe
PID 1120 wrote to memory of 1016	1120	f34ecc9a2b4cc433afae06d4e6dee9cf9b30c78b2349ac190855c3b79de8d565.exe	dw20.exe
PID 1120 wrote to memory of 1016	1120	f34ecc9a2b4cc433afae06d4e6dee9cf9b30c78b2349ac190855c3b79de8d565.exe	dw20.exe
PID 1120 wrote to memory of 1016	1120	f34ecc9a2b4cc433afae06d4e6dee9cf9b30c78b2349ac190855c3b79de8d565.exe	dw20.exe
PID 1736 wrote to memory of 1416	1736	vbc.exe	msdcsc.exe
PID 1736 wrote to memory of 1416	1736	vbc.exe	msdcsc.exe
PID 1736 wrote to memory of 1416	1736	vbc.exe	msdcsc.exe
PID 1736 wrote to memory of 1416	1736	vbc.exe	msdcsc.exe

C:\Users\Admin\AppData\Local\Temp\f34ecc9a2b4cc433afae06d4e6dee9cf9b30c78b2349ac190855c3b79de8d565.exe
"C:\Users\Admin\AppData\Local\Temp\f34ecc9a2b4cc433afae06d4e6dee9cf9b30c78b2349ac190855c3b79de8d565.exe"
1⤵
- Drops file in System32 directory
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1120

C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
2⤵
- Modifies WinLogon for persistence
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1736

C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
"C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
3⤵
- Executes dropped EXE
PID:1416

C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe
dw20.exe -x -s 564
2⤵
- Suspicious behavior: GetForegroundWindowSpam
PID:1016

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scripting

1

T1064

Persistence

Winlogon Helper DLL

1

T1004

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

2

T1112

Scripting

1

T1064

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
Filesize
1.1MB

MD5
34aa912defa18c2c129f1e09d75c1d7e

SHA1
9c3046324657505a30ecd9b1fdb46c05bde7d470

SHA256
6df94b7fa33f1b87142adc39b3db0613fc520d9e7a5fd6a5301dd7f51f8d0386

SHA512
d1ea9368f5d7166180612fd763c87afb647d088498887961f5e7fb0a10f4a808bd5928e8a3666d70ff794093c51ecca8816f75dd47652fd4eb23dce7f9aa1f98

Download Submit
C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
Filesize
1.1MB

MD5
34aa912defa18c2c129f1e09d75c1d7e

SHA1
9c3046324657505a30ecd9b1fdb46c05bde7d470

SHA256
6df94b7fa33f1b87142adc39b3db0613fc520d9e7a5fd6a5301dd7f51f8d0386

SHA512
d1ea9368f5d7166180612fd763c87afb647d088498887961f5e7fb0a10f4a808bd5928e8a3666d70ff794093c51ecca8816f75dd47652fd4eb23dce7f9aa1f98

Download Submit
\Users\Admin\Documents\MSDCSC\msdcsc.exe
Filesize
1.1MB

MD5
34aa912defa18c2c129f1e09d75c1d7e

SHA1
9c3046324657505a30ecd9b1fdb46c05bde7d470

SHA256
6df94b7fa33f1b87142adc39b3db0613fc520d9e7a5fd6a5301dd7f51f8d0386

SHA512
d1ea9368f5d7166180612fd763c87afb647d088498887961f5e7fb0a10f4a808bd5928e8a3666d70ff794093c51ecca8816f75dd47652fd4eb23dce7f9aa1f98

Download Submit
memory/1016-74-0x0000000000000000-mapping.dmp

Download
memory/1120-54-0x0000000075891000-0x0000000075893000-memory.dmp

Filesize
8KB

Download
memory/1120-55-0x0000000073EC0000-0x000000007446B000-memory.dmp

Filesize
5.7MB

Download
memory/1120-83-0x0000000073EC0000-0x000000007446B000-memory.dmp

Filesize
5.7MB

Download
memory/1416-79-0x0000000000000000-mapping.dmp

Download
memory/1736-70-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1736-77-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1736-66-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1736-71-0x000000000048F888-mapping.dmp

Download
memory/1736-72-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1736-65-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1736-75-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1736-68-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1736-63-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1736-61-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1736-59-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1736-57-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1736-82-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1736-56-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads