darkcomet | ba44e79fa6d4eff102e72b020e38773313169a506fe122299249966c03ff5929

General

Target

ba44e79fa6d4eff102e72b020e38773313169a506fe122299249966c03ff5929.exe
Size

252KB
MD5

211a09040d2cb30152089b6510fbb9f1
SHA1

df0098c310c380d37bc196e63b5fed540f64779a
SHA256

ba44e79fa6d4eff102e72b020e38773313169a506fe122299249966c03ff5929
SHA512

f89f11c1140da0798ae447e35055a3d5b948a5815dba9c1bf05b546390d74e1bfb2decf4e3e6c2f8487455e165ec2752c362b45a6ac42b43da04eed9bd35f6ff

Score

10^/10

darkcomet guest16 persistence rat trojan upx

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

ximer2020.ddns.net:1604

Mutex

DC_MUTEX-4U0HFC0

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
aDFqoxfKfrcR
install
true
offline_keylogger
true
password
82121020202222
persistence
true
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:

ba44e79fa6d4eff102e72b020e38773313169a506fe122299249966c03ff5929.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"	ba44e79fa6d4eff102e72b020e38773313169a506fe122299249966c03ff5929.exe

Executes dropped EXE 1 IoCs

Processes:

msdcsc.exe

pid process

1320 msdcsc.exe

pid	process
1320	msdcsc.exe

UPX packed file 7 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
behavioral1/memory/1608-8-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/1608-10-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/1608-11-0x0000000000400000-0x00000000004B7000-memory.dmp	upx

Deletes itself 1 IoCs

Processes:

notepad.exe

pid process

1128 notepad.exe

pid	process
1128	notepad.exe

Loads dropped DLL 2 IoCs

Processes:

ba44e79fa6d4eff102e72b020e38773313169a506fe122299249966c03ff5929.exe

pid	process
1960	ba44e79fa6d4eff102e72b020e38773313169a506fe122299249966c03ff5929.exe
1960	ba44e79fa6d4eff102e72b020e38773313169a506fe122299249966c03ff5929.exe

Adds Run key to start application 2 TTPs 3 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

ba44e79fa6d4eff102e72b020e38773313169a506fe122299249966c03ff5929.exemsdcsc.exeiexplore.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"	ba44e79fa6d4eff102e72b020e38773313169a506fe122299249966c03ff5929.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
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"	iexplore.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

msdcsc.exe

description pid process target process

PID 1320 set thread context of 1608 1320 msdcsc.exe iexplore.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:

iexplore.exe

pid process

1608 iexplore.exe

description	pid	process	target process
PID 1320 set thread context of 1608	1320	msdcsc.exe	iexplore.exe

pid	process
1608	iexplore.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

Processes:

ba44e79fa6d4eff102e72b020e38773313169a506fe122299249966c03ff5929.exemsdcsc.exeiexplore.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	1960	ba44e79fa6d4eff102e72b020e38773313169a506fe122299249966c03ff5929.exe
Token: SeSecurityPrivilege	1960	ba44e79fa6d4eff102e72b020e38773313169a506fe122299249966c03ff5929.exe
Token: SeTakeOwnershipPrivilege	1960	ba44e79fa6d4eff102e72b020e38773313169a506fe122299249966c03ff5929.exe
Token: SeLoadDriverPrivilege	1960	ba44e79fa6d4eff102e72b020e38773313169a506fe122299249966c03ff5929.exe
Token: SeSystemProfilePrivilege	1960	ba44e79fa6d4eff102e72b020e38773313169a506fe122299249966c03ff5929.exe
Token: SeSystemtimePrivilege	1960	ba44e79fa6d4eff102e72b020e38773313169a506fe122299249966c03ff5929.exe
Token: SeProfSingleProcessPrivilege	1960	ba44e79fa6d4eff102e72b020e38773313169a506fe122299249966c03ff5929.exe
Token: SeIncBasePriorityPrivilege	1960	ba44e79fa6d4eff102e72b020e38773313169a506fe122299249966c03ff5929.exe
Token: SeCreatePagefilePrivilege	1960	ba44e79fa6d4eff102e72b020e38773313169a506fe122299249966c03ff5929.exe
Token: SeBackupPrivilege	1960	ba44e79fa6d4eff102e72b020e38773313169a506fe122299249966c03ff5929.exe
Token: SeRestorePrivilege	1960	ba44e79fa6d4eff102e72b020e38773313169a506fe122299249966c03ff5929.exe
Token: SeShutdownPrivilege	1960	ba44e79fa6d4eff102e72b020e38773313169a506fe122299249966c03ff5929.exe
Token: SeDebugPrivilege	1960	ba44e79fa6d4eff102e72b020e38773313169a506fe122299249966c03ff5929.exe
Token: SeSystemEnvironmentPrivilege	1960	ba44e79fa6d4eff102e72b020e38773313169a506fe122299249966c03ff5929.exe
Token: SeChangeNotifyPrivilege	1960	ba44e79fa6d4eff102e72b020e38773313169a506fe122299249966c03ff5929.exe
Token: SeRemoteShutdownPrivilege	1960	ba44e79fa6d4eff102e72b020e38773313169a506fe122299249966c03ff5929.exe
Token: SeUndockPrivilege	1960	ba44e79fa6d4eff102e72b020e38773313169a506fe122299249966c03ff5929.exe
Token: SeManageVolumePrivilege	1960	ba44e79fa6d4eff102e72b020e38773313169a506fe122299249966c03ff5929.exe
Token: SeImpersonatePrivilege	1960	ba44e79fa6d4eff102e72b020e38773313169a506fe122299249966c03ff5929.exe
Token: SeCreateGlobalPrivilege	1960	ba44e79fa6d4eff102e72b020e38773313169a506fe122299249966c03ff5929.exe
Token: 33	1960	ba44e79fa6d4eff102e72b020e38773313169a506fe122299249966c03ff5929.exe
Token: 34	1960	ba44e79fa6d4eff102e72b020e38773313169a506fe122299249966c03ff5929.exe
Token: 35	1960	ba44e79fa6d4eff102e72b020e38773313169a506fe122299249966c03ff5929.exe
Token: SeIncreaseQuotaPrivilege	1320	msdcsc.exe
Token: SeSecurityPrivilege	1320	msdcsc.exe
Token: SeTakeOwnershipPrivilege	1320	msdcsc.exe
Token: SeLoadDriverPrivilege	1320	msdcsc.exe
Token: SeSystemProfilePrivilege	1320	msdcsc.exe
Token: SeSystemtimePrivilege	1320	msdcsc.exe
Token: SeProfSingleProcessPrivilege	1320	msdcsc.exe
Token: SeIncBasePriorityPrivilege	1320	msdcsc.exe
Token: SeCreatePagefilePrivilege	1320	msdcsc.exe
Token: SeBackupPrivilege	1320	msdcsc.exe
Token: SeRestorePrivilege	1320	msdcsc.exe
Token: SeShutdownPrivilege	1320	msdcsc.exe
Token: SeDebugPrivilege	1320	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	1320	msdcsc.exe
Token: SeChangeNotifyPrivilege	1320	msdcsc.exe
Token: SeRemoteShutdownPrivilege	1320	msdcsc.exe
Token: SeUndockPrivilege	1320	msdcsc.exe
Token: SeManageVolumePrivilege	1320	msdcsc.exe
Token: SeImpersonatePrivilege	1320	msdcsc.exe
Token: SeCreateGlobalPrivilege	1320	msdcsc.exe
Token: 33	1320	msdcsc.exe
Token: 34	1320	msdcsc.exe
Token: 35	1320	msdcsc.exe
Token: SeIncreaseQuotaPrivilege	1608	iexplore.exe
Token: SeSecurityPrivilege	1608	iexplore.exe
Token: SeTakeOwnershipPrivilege	1608	iexplore.exe
Token: SeLoadDriverPrivilege	1608	iexplore.exe
Token: SeSystemProfilePrivilege	1608	iexplore.exe
Token: SeSystemtimePrivilege	1608	iexplore.exe
Token: SeProfSingleProcessPrivilege	1608	iexplore.exe
Token: SeIncBasePriorityPrivilege	1608	iexplore.exe
Token: SeCreatePagefilePrivilege	1608	iexplore.exe
Token: SeBackupPrivilege	1608	iexplore.exe
Token: SeRestorePrivilege	1608	iexplore.exe
Token: SeShutdownPrivilege	1608	iexplore.exe
Token: SeDebugPrivilege	1608	iexplore.exe
Token: SeSystemEnvironmentPrivilege	1608	iexplore.exe
Token: SeChangeNotifyPrivilege	1608	iexplore.exe
Token: SeRemoteShutdownPrivilege	1608	iexplore.exe
Token: SeUndockPrivilege	1608	iexplore.exe
Token: SeManageVolumePrivilege	1608	iexplore.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

iexplore.exe

pid process

1608 iexplore.exe

pid	process
1608	iexplore.exe

Suspicious use of WriteProcessMemory 51 IoCs

Processes:

ba44e79fa6d4eff102e72b020e38773313169a506fe122299249966c03ff5929.exemsdcsc.exeiexplore.exe

description	pid	process	target process
PID 1960 wrote to memory of 1128	1960	ba44e79fa6d4eff102e72b020e38773313169a506fe122299249966c03ff5929.exe	notepad.exe
PID 1960 wrote to memory of 1128	1960	ba44e79fa6d4eff102e72b020e38773313169a506fe122299249966c03ff5929.exe	notepad.exe
PID 1960 wrote to memory of 1128	1960	ba44e79fa6d4eff102e72b020e38773313169a506fe122299249966c03ff5929.exe	notepad.exe
PID 1960 wrote to memory of 1128	1960	ba44e79fa6d4eff102e72b020e38773313169a506fe122299249966c03ff5929.exe	notepad.exe
PID 1960 wrote to memory of 1128	1960	ba44e79fa6d4eff102e72b020e38773313169a506fe122299249966c03ff5929.exe	notepad.exe
PID 1960 wrote to memory of 1128	1960	ba44e79fa6d4eff102e72b020e38773313169a506fe122299249966c03ff5929.exe	notepad.exe
PID 1960 wrote to memory of 1128	1960	ba44e79fa6d4eff102e72b020e38773313169a506fe122299249966c03ff5929.exe	notepad.exe
PID 1960 wrote to memory of 1128	1960	ba44e79fa6d4eff102e72b020e38773313169a506fe122299249966c03ff5929.exe	notepad.exe
PID 1960 wrote to memory of 1128	1960	ba44e79fa6d4eff102e72b020e38773313169a506fe122299249966c03ff5929.exe	notepad.exe
PID 1960 wrote to memory of 1128	1960	ba44e79fa6d4eff102e72b020e38773313169a506fe122299249966c03ff5929.exe	notepad.exe
PID 1960 wrote to memory of 1128	1960	ba44e79fa6d4eff102e72b020e38773313169a506fe122299249966c03ff5929.exe	notepad.exe
PID 1960 wrote to memory of 1128	1960	ba44e79fa6d4eff102e72b020e38773313169a506fe122299249966c03ff5929.exe	notepad.exe
PID 1960 wrote to memory of 1128	1960	ba44e79fa6d4eff102e72b020e38773313169a506fe122299249966c03ff5929.exe	notepad.exe
PID 1960 wrote to memory of 1128	1960	ba44e79fa6d4eff102e72b020e38773313169a506fe122299249966c03ff5929.exe	notepad.exe
PID 1960 wrote to memory of 1128	1960	ba44e79fa6d4eff102e72b020e38773313169a506fe122299249966c03ff5929.exe	notepad.exe
PID 1960 wrote to memory of 1128	1960	ba44e79fa6d4eff102e72b020e38773313169a506fe122299249966c03ff5929.exe	notepad.exe
PID 1960 wrote to memory of 1128	1960	ba44e79fa6d4eff102e72b020e38773313169a506fe122299249966c03ff5929.exe	notepad.exe
PID 1960 wrote to memory of 1128	1960	ba44e79fa6d4eff102e72b020e38773313169a506fe122299249966c03ff5929.exe	notepad.exe
PID 1960 wrote to memory of 1320	1960	ba44e79fa6d4eff102e72b020e38773313169a506fe122299249966c03ff5929.exe	msdcsc.exe
PID 1960 wrote to memory of 1320	1960	ba44e79fa6d4eff102e72b020e38773313169a506fe122299249966c03ff5929.exe	msdcsc.exe
PID 1960 wrote to memory of 1320	1960	ba44e79fa6d4eff102e72b020e38773313169a506fe122299249966c03ff5929.exe	msdcsc.exe
PID 1960 wrote to memory of 1320	1960	ba44e79fa6d4eff102e72b020e38773313169a506fe122299249966c03ff5929.exe	msdcsc.exe
PID 1320 wrote to memory of 1608	1320	msdcsc.exe	iexplore.exe
PID 1320 wrote to memory of 1608	1320	msdcsc.exe	iexplore.exe
PID 1320 wrote to memory of 1608	1320	msdcsc.exe	iexplore.exe
PID 1320 wrote to memory of 1608	1320	msdcsc.exe	iexplore.exe
PID 1320 wrote to memory of 1608	1320	msdcsc.exe	iexplore.exe
PID 1320 wrote to memory of 1608	1320	msdcsc.exe	iexplore.exe
PID 1608 wrote to memory of 1736	1608	iexplore.exe	notepad.exe
PID 1608 wrote to memory of 1736	1608	iexplore.exe	notepad.exe
PID 1608 wrote to memory of 1736	1608	iexplore.exe	notepad.exe
PID 1608 wrote to memory of 1736	1608	iexplore.exe	notepad.exe
PID 1608 wrote to memory of 1736	1608	iexplore.exe	notepad.exe
PID 1608 wrote to memory of 1736	1608	iexplore.exe	notepad.exe
PID 1608 wrote to memory of 1736	1608	iexplore.exe	notepad.exe
PID 1608 wrote to memory of 1736	1608	iexplore.exe	notepad.exe
PID 1608 wrote to memory of 1736	1608	iexplore.exe	notepad.exe
PID 1608 wrote to memory of 1736	1608	iexplore.exe	notepad.exe
PID 1608 wrote to memory of 1736	1608	iexplore.exe	notepad.exe
PID 1608 wrote to memory of 1736	1608	iexplore.exe	notepad.exe
PID 1608 wrote to memory of 1736	1608	iexplore.exe	notepad.exe
PID 1608 wrote to memory of 1736	1608	iexplore.exe	notepad.exe
PID 1608 wrote to memory of 1736	1608	iexplore.exe	notepad.exe
PID 1608 wrote to memory of 1736	1608	iexplore.exe	notepad.exe
PID 1608 wrote to memory of 1736	1608	iexplore.exe	notepad.exe
PID 1608 wrote to memory of 1736	1608	iexplore.exe	notepad.exe
PID 1608 wrote to memory of 1736	1608	iexplore.exe	notepad.exe
PID 1608 wrote to memory of 1736	1608	iexplore.exe	notepad.exe
PID 1608 wrote to memory of 1736	1608	iexplore.exe	notepad.exe
PID 1608 wrote to memory of 1736	1608	iexplore.exe	notepad.exe
PID 1608 wrote to memory of 1736	1608	iexplore.exe	notepad.exe

C:\Users\Admin\AppData\Local\Temp\ba44e79fa6d4eff102e72b020e38773313169a506fe122299249966c03ff5929.exe
"C:\Users\Admin\AppData\Local\Temp\ba44e79fa6d4eff102e72b020e38773313169a506fe122299249966c03ff5929.exe"
1⤵
- Modifies WinLogon for persistence
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1960

C:\Windows\SysWOW64\notepad.exe
notepad
2⤵
- Deletes itself
PID:1128

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 use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1320

C:\Program Files (x86)\Internet Explorer\iexplore.exe
"C:\Program Files (x86)\Internet Explorer\iexplore.exe"
3⤵
- Adds Run key to start application
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1608

C:\Windows\SysWOW64\notepad.exe
notepad
4⤵
PID:1736

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
211a09040d2cb30152089b6510fbb9f1

SHA1
df0098c310c380d37bc196e63b5fed540f64779a

SHA256
ba44e79fa6d4eff102e72b020e38773313169a506fe122299249966c03ff5929

SHA512
f89f11c1140da0798ae447e35055a3d5b948a5815dba9c1bf05b546390d74e1bfb2decf4e3e6c2f8487455e165ec2752c362b45a6ac42b43da04eed9bd35f6ff

Download Submit
C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
MD5
211a09040d2cb30152089b6510fbb9f1

SHA1
df0098c310c380d37bc196e63b5fed540f64779a

SHA256
ba44e79fa6d4eff102e72b020e38773313169a506fe122299249966c03ff5929

SHA512
f89f11c1140da0798ae447e35055a3d5b948a5815dba9c1bf05b546390d74e1bfb2decf4e3e6c2f8487455e165ec2752c362b45a6ac42b43da04eed9bd35f6ff

Download Submit
\Users\Admin\Documents\MSDCSC\msdcsc.exe
MD5
211a09040d2cb30152089b6510fbb9f1

SHA1
df0098c310c380d37bc196e63b5fed540f64779a

SHA256
ba44e79fa6d4eff102e72b020e38773313169a506fe122299249966c03ff5929

SHA512
f89f11c1140da0798ae447e35055a3d5b948a5815dba9c1bf05b546390d74e1bfb2decf4e3e6c2f8487455e165ec2752c362b45a6ac42b43da04eed9bd35f6ff

Download Submit
\Users\Admin\Documents\MSDCSC\msdcsc.exe
MD5
211a09040d2cb30152089b6510fbb9f1

SHA1
df0098c310c380d37bc196e63b5fed540f64779a

SHA256
ba44e79fa6d4eff102e72b020e38773313169a506fe122299249966c03ff5929

SHA512
f89f11c1140da0798ae447e35055a3d5b948a5815dba9c1bf05b546390d74e1bfb2decf4e3e6c2f8487455e165ec2752c362b45a6ac42b43da04eed9bd35f6ff

Download Submit
memory/1128-0-0x0000000000000000-mapping.dmp

Download
memory/1128-2-0x0000000000000000-mapping.dmp

Download
memory/1128-1-0x0000000000190000-0x0000000000191000-memory.dmp

Filesize
4KB

Download
memory/1320-5-0x0000000000000000-mapping.dmp

Download
memory/1608-8-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1608-9-0x00000000004B5820-mapping.dmp

Download
memory/1608-10-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1608-11-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1736-13-0x00000000001A0000-0x00000000001A1000-memory.dmp

Filesize
4KB

Download
memory/1736-12-0x0000000000000000-mapping.dmp

Download
memory/1736-14-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads