darkcomet | 1c876d45db060f5be86ab9a13496c0b280d3c6031f00bb4ffebae99566a9249b

General

Target

f.bin.exe
Size

658KB
MD5

3b6f11e1bfcb6137f555399ce5e5fec6
SHA1

dbfe47ed7e9842b0a9014c11b7146c38963882c5
SHA256

1c876d45db060f5be86ab9a13496c0b280d3c6031f00bb4ffebae99566a9249b
SHA512

6d6b338a395cc42d527cee0dd06f051b86e7d135b764c6d7619eae0a9dba0e687e0578ff64d83ac7284fea1e727a6695a7e3d065e86d45b01cb81befeab89715

Score

10^/10

darkcomet guest16 evasion persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

ImagineTyingToGetMyIp-31268.portmap.host:31268

Mutex

DC_MUTEX-B1A8DEL

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
ZyDv1EUeB9PM
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

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1004

Modify Registry

T1112

Processes:

f.bin.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"	f.bin.exe

Windows security bypass 2 TTPs
evasion trojan

Disabling Security Tools
T1089

Modify Registry
T1112
Executes dropped EXE 1 IoCs

Processes:

msdcsc.exe

pid process

932 msdcsc.exe
Sets file to hidden 1 TTPs
Modifies file attributes to stop it showing in Explorer etc.
evasion

Hidden Files and Directories
T1158
Loads dropped DLL 2 IoCs

Processes:

f.bin.exe

pid process

1972 f.bin.exe
1972 f.bin.exe
Windows security modification 2 TTPs 1 IoCs
evasion trojan

Disabling Security Tools
T1089

Modify Registry
T1112

Processes:

msdcsc.exe

description ioc process

Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" msdcsc.exe

pid	process
932	msdcsc.exe

pid	process
1972	f.bin.exe
1972	f.bin.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	msdcsc.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

f.bin.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"	f.bin.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 use of AdjustPrivilegeToken 46 IoCs

Processes:

f.bin.exemsdcsc.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	1972	f.bin.exe
Token: SeSecurityPrivilege	1972	f.bin.exe
Token: SeTakeOwnershipPrivilege	1972	f.bin.exe
Token: SeLoadDriverPrivilege	1972	f.bin.exe
Token: SeSystemProfilePrivilege	1972	f.bin.exe
Token: SeSystemtimePrivilege	1972	f.bin.exe
Token: SeProfSingleProcessPrivilege	1972	f.bin.exe
Token: SeIncBasePriorityPrivilege	1972	f.bin.exe
Token: SeCreatePagefilePrivilege	1972	f.bin.exe
Token: SeBackupPrivilege	1972	f.bin.exe
Token: SeRestorePrivilege	1972	f.bin.exe
Token: SeShutdownPrivilege	1972	f.bin.exe
Token: SeDebugPrivilege	1972	f.bin.exe
Token: SeSystemEnvironmentPrivilege	1972	f.bin.exe
Token: SeChangeNotifyPrivilege	1972	f.bin.exe
Token: SeRemoteShutdownPrivilege	1972	f.bin.exe
Token: SeUndockPrivilege	1972	f.bin.exe
Token: SeManageVolumePrivilege	1972	f.bin.exe
Token: SeImpersonatePrivilege	1972	f.bin.exe
Token: SeCreateGlobalPrivilege	1972	f.bin.exe
Token: 33	1972	f.bin.exe
Token: 34	1972	f.bin.exe
Token: 35	1972	f.bin.exe
Token: SeIncreaseQuotaPrivilege	932	msdcsc.exe
Token: SeSecurityPrivilege	932	msdcsc.exe
Token: SeTakeOwnershipPrivilege	932	msdcsc.exe
Token: SeLoadDriverPrivilege	932	msdcsc.exe
Token: SeSystemProfilePrivilege	932	msdcsc.exe
Token: SeSystemtimePrivilege	932	msdcsc.exe
Token: SeProfSingleProcessPrivilege	932	msdcsc.exe
Token: SeIncBasePriorityPrivilege	932	msdcsc.exe
Token: SeCreatePagefilePrivilege	932	msdcsc.exe
Token: SeBackupPrivilege	932	msdcsc.exe
Token: SeRestorePrivilege	932	msdcsc.exe
Token: SeShutdownPrivilege	932	msdcsc.exe
Token: SeDebugPrivilege	932	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	932	msdcsc.exe
Token: SeChangeNotifyPrivilege	932	msdcsc.exe
Token: SeRemoteShutdownPrivilege	932	msdcsc.exe
Token: SeUndockPrivilege	932	msdcsc.exe
Token: SeManageVolumePrivilege	932	msdcsc.exe
Token: SeImpersonatePrivilege	932	msdcsc.exe
Token: SeCreateGlobalPrivilege	932	msdcsc.exe
Token: 33	932	msdcsc.exe
Token: 34	932	msdcsc.exe
Token: 35	932	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

msdcsc.exe

pid process

932 msdcsc.exe

pid	process
932	msdcsc.exe

Suspicious use of WriteProcessMemory 43 IoCs

Processes:

f.bin.execmd.execmd.exemsdcsc.exe

description	pid	process	target process
PID 1972 wrote to memory of 1804	1972	f.bin.exe	cmd.exe
PID 1972 wrote to memory of 1804	1972	f.bin.exe	cmd.exe
PID 1972 wrote to memory of 1804	1972	f.bin.exe	cmd.exe
PID 1972 wrote to memory of 1804	1972	f.bin.exe	cmd.exe
PID 1972 wrote to memory of 1800	1972	f.bin.exe	cmd.exe
PID 1972 wrote to memory of 1800	1972	f.bin.exe	cmd.exe
PID 1972 wrote to memory of 1800	1972	f.bin.exe	cmd.exe
PID 1972 wrote to memory of 1800	1972	f.bin.exe	cmd.exe
PID 1804 wrote to memory of 1728	1804	cmd.exe	attrib.exe
PID 1804 wrote to memory of 1728	1804	cmd.exe	attrib.exe
PID 1804 wrote to memory of 1728	1804	cmd.exe	attrib.exe
PID 1804 wrote to memory of 1728	1804	cmd.exe	attrib.exe
PID 1800 wrote to memory of 1600	1800	cmd.exe	attrib.exe
PID 1800 wrote to memory of 1600	1800	cmd.exe	attrib.exe
PID 1800 wrote to memory of 1600	1800	cmd.exe	attrib.exe
PID 1800 wrote to memory of 1600	1800	cmd.exe	attrib.exe
PID 1972 wrote to memory of 932	1972	f.bin.exe	msdcsc.exe
PID 1972 wrote to memory of 932	1972	f.bin.exe	msdcsc.exe
PID 1972 wrote to memory of 932	1972	f.bin.exe	msdcsc.exe
PID 1972 wrote to memory of 932	1972	f.bin.exe	msdcsc.exe
PID 932 wrote to memory of 1212	932	msdcsc.exe	notepad.exe
PID 932 wrote to memory of 1212	932	msdcsc.exe	notepad.exe
PID 932 wrote to memory of 1212	932	msdcsc.exe	notepad.exe
PID 932 wrote to memory of 1212	932	msdcsc.exe	notepad.exe
PID 932 wrote to memory of 1212	932	msdcsc.exe	notepad.exe
PID 932 wrote to memory of 1212	932	msdcsc.exe	notepad.exe
PID 932 wrote to memory of 1212	932	msdcsc.exe	notepad.exe
PID 932 wrote to memory of 1212	932	msdcsc.exe	notepad.exe
PID 932 wrote to memory of 1212	932	msdcsc.exe	notepad.exe
PID 932 wrote to memory of 1212	932	msdcsc.exe	notepad.exe
PID 932 wrote to memory of 1212	932	msdcsc.exe	notepad.exe
PID 932 wrote to memory of 1212	932	msdcsc.exe	notepad.exe
PID 932 wrote to memory of 1212	932	msdcsc.exe	notepad.exe
PID 932 wrote to memory of 1212	932	msdcsc.exe	notepad.exe
PID 932 wrote to memory of 1212	932	msdcsc.exe	notepad.exe
PID 932 wrote to memory of 1212	932	msdcsc.exe	notepad.exe
PID 932 wrote to memory of 1212	932	msdcsc.exe	notepad.exe
PID 932 wrote to memory of 1212	932	msdcsc.exe	notepad.exe
PID 932 wrote to memory of 1212	932	msdcsc.exe	notepad.exe
PID 932 wrote to memory of 1212	932	msdcsc.exe	notepad.exe
PID 932 wrote to memory of 1212	932	msdcsc.exe	notepad.exe
PID 932 wrote to memory of 1212	932	msdcsc.exe	notepad.exe
PID 932 wrote to memory of 1212	932	msdcsc.exe	notepad.exe

Views/modifies file attributes 1 TTPs 2 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exeattrib.exe

pid process

1728 attrib.exe
1600 attrib.exe

pid	process
1728	attrib.exe
1600	attrib.exe

C:\Users\Admin\AppData\Local\Temp\f.bin.exe
"C:\Users\Admin\AppData\Local\Temp\f.bin.exe"
1⤵
- Modifies WinLogon for persistence
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1972

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\f.bin.exe" +s +h
2⤵
- Suspicious use of WriteProcessMemory
PID:1804

C:\Windows\SysWOW64\attrib.exe
attrib "C:\Users\Admin\AppData\Local\Temp\f.bin.exe" +s +h
3⤵
- Views/modifies file attributes
PID:1728

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
2⤵
- Suspicious use of WriteProcessMemory
PID:1800

C:\Windows\SysWOW64\attrib.exe
attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
3⤵
- Views/modifies file attributes
PID:1600

C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
"C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
2⤵
- Executes dropped EXE
- Windows security modification
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:932

C:\Windows\SysWOW64\notepad.exe
notepad
3⤵
PID:1212

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

1

T1004

Hidden Files and Directories

2

T1158

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

4

T1112

Disabling Security Tools

2

T1089

Hidden Files and Directories

2

T1158

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
3b6f11e1bfcb6137f555399ce5e5fec6

SHA1
dbfe47ed7e9842b0a9014c11b7146c38963882c5

SHA256
1c876d45db060f5be86ab9a13496c0b280d3c6031f00bb4ffebae99566a9249b

SHA512
6d6b338a395cc42d527cee0dd06f051b86e7d135b764c6d7619eae0a9dba0e687e0578ff64d83ac7284fea1e727a6695a7e3d065e86d45b01cb81befeab89715

Download Submit
C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
MD5
3b6f11e1bfcb6137f555399ce5e5fec6

SHA1
dbfe47ed7e9842b0a9014c11b7146c38963882c5

SHA256
1c876d45db060f5be86ab9a13496c0b280d3c6031f00bb4ffebae99566a9249b

SHA512
6d6b338a395cc42d527cee0dd06f051b86e7d135b764c6d7619eae0a9dba0e687e0578ff64d83ac7284fea1e727a6695a7e3d065e86d45b01cb81befeab89715

Download Submit
\Users\Admin\Documents\MSDCSC\msdcsc.exe
MD5
3b6f11e1bfcb6137f555399ce5e5fec6

SHA1
dbfe47ed7e9842b0a9014c11b7146c38963882c5

SHA256
1c876d45db060f5be86ab9a13496c0b280d3c6031f00bb4ffebae99566a9249b

SHA512
6d6b338a395cc42d527cee0dd06f051b86e7d135b764c6d7619eae0a9dba0e687e0578ff64d83ac7284fea1e727a6695a7e3d065e86d45b01cb81befeab89715

Download Submit
\Users\Admin\Documents\MSDCSC\msdcsc.exe
MD5
3b6f11e1bfcb6137f555399ce5e5fec6

SHA1
dbfe47ed7e9842b0a9014c11b7146c38963882c5

SHA256
1c876d45db060f5be86ab9a13496c0b280d3c6031f00bb4ffebae99566a9249b

SHA512
6d6b338a395cc42d527cee0dd06f051b86e7d135b764c6d7619eae0a9dba0e687e0578ff64d83ac7284fea1e727a6695a7e3d065e86d45b01cb81befeab89715

Download Submit
memory/932-8-0x0000000000000000-mapping.dmp

Download
memory/1212-13-0x0000000000000000-mapping.dmp

Download
memory/1212-12-0x0000000000220000-0x0000000000221000-memory.dmp

Filesize
4KB

Download
memory/1212-11-0x0000000000000000-mapping.dmp

Download
memory/1600-5-0x0000000000000000-mapping.dmp

Download
memory/1728-4-0x0000000000000000-mapping.dmp

Download
memory/1800-3-0x0000000000000000-mapping.dmp

Download
memory/1804-2-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads