39d7a5ddfc61d4ce34e76bf080d69a02574705068506ae7508347199336c3f36

General

Target

39d7a5ddfc61d4ce34e76bf080d69a02574705068506ae7508347199336c3f36.exe
Size

690KB
MD5

b1054ce8f34ae583487bd889bf03fb39
SHA1

405a0010eda09b5878596a7d91abf0ffe58634db
SHA256

39d7a5ddfc61d4ce34e76bf080d69a02574705068506ae7508347199336c3f36
SHA512

5f03041137cb4fb942b96f8d6e2f44849be7d393b9f7231581ad6637d8ebba7864c38defe922f238661dc525e6d2dc726e3e456cbc540f977b13162100629345

Score

10^/10

evasion persistence

Malware Config

Signatures

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1004

Modify Registry

T1112

Processes:

39d7a5ddfc61d4ce34e76bf080d69a02574705068506ae7508347199336c3f36.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\Users\\Admin\\AppData\\Local\\Temp\\MSDCSC\\java"	39d7a5ddfc61d4ce34e76bf080d69a02574705068506ae7508347199336c3f36.exe

Sets file to hidden 1 TTPs 2 IoCs
Modifies file attributes to stop it showing in Explorer etc.
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exeattrib.exe

pid process

2020 attrib.exe
1352 attrib.exe

pid	process
2020	attrib.exe
1352	attrib.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

39d7a5ddfc61d4ce34e76bf080d69a02574705068506ae7508347199336c3f36.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3762437355-3468409815-1164039494-1000\Software\Microsoft\Windows\CurrentVersion\Run\svhost = "C:\\Users\\Admin\\AppData\\Local\\Temp\\MSDCSC\\java"	39d7a5ddfc61d4ce34e76bf080d69a02574705068506ae7508347199336c3f36.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 23 IoCs

Processes:

39d7a5ddfc61d4ce34e76bf080d69a02574705068506ae7508347199336c3f36.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	1756	39d7a5ddfc61d4ce34e76bf080d69a02574705068506ae7508347199336c3f36.exe
Token: SeSecurityPrivilege	1756	39d7a5ddfc61d4ce34e76bf080d69a02574705068506ae7508347199336c3f36.exe
Token: SeTakeOwnershipPrivilege	1756	39d7a5ddfc61d4ce34e76bf080d69a02574705068506ae7508347199336c3f36.exe
Token: SeLoadDriverPrivilege	1756	39d7a5ddfc61d4ce34e76bf080d69a02574705068506ae7508347199336c3f36.exe
Token: SeSystemProfilePrivilege	1756	39d7a5ddfc61d4ce34e76bf080d69a02574705068506ae7508347199336c3f36.exe
Token: SeSystemtimePrivilege	1756	39d7a5ddfc61d4ce34e76bf080d69a02574705068506ae7508347199336c3f36.exe
Token: SeProfSingleProcessPrivilege	1756	39d7a5ddfc61d4ce34e76bf080d69a02574705068506ae7508347199336c3f36.exe
Token: SeIncBasePriorityPrivilege	1756	39d7a5ddfc61d4ce34e76bf080d69a02574705068506ae7508347199336c3f36.exe
Token: SeCreatePagefilePrivilege	1756	39d7a5ddfc61d4ce34e76bf080d69a02574705068506ae7508347199336c3f36.exe
Token: SeBackupPrivilege	1756	39d7a5ddfc61d4ce34e76bf080d69a02574705068506ae7508347199336c3f36.exe
Token: SeRestorePrivilege	1756	39d7a5ddfc61d4ce34e76bf080d69a02574705068506ae7508347199336c3f36.exe
Token: SeShutdownPrivilege	1756	39d7a5ddfc61d4ce34e76bf080d69a02574705068506ae7508347199336c3f36.exe
Token: SeDebugPrivilege	1756	39d7a5ddfc61d4ce34e76bf080d69a02574705068506ae7508347199336c3f36.exe
Token: SeSystemEnvironmentPrivilege	1756	39d7a5ddfc61d4ce34e76bf080d69a02574705068506ae7508347199336c3f36.exe
Token: SeChangeNotifyPrivilege	1756	39d7a5ddfc61d4ce34e76bf080d69a02574705068506ae7508347199336c3f36.exe
Token: SeRemoteShutdownPrivilege	1756	39d7a5ddfc61d4ce34e76bf080d69a02574705068506ae7508347199336c3f36.exe
Token: SeUndockPrivilege	1756	39d7a5ddfc61d4ce34e76bf080d69a02574705068506ae7508347199336c3f36.exe
Token: SeManageVolumePrivilege	1756	39d7a5ddfc61d4ce34e76bf080d69a02574705068506ae7508347199336c3f36.exe
Token: SeImpersonatePrivilege	1756	39d7a5ddfc61d4ce34e76bf080d69a02574705068506ae7508347199336c3f36.exe
Token: SeCreateGlobalPrivilege	1756	39d7a5ddfc61d4ce34e76bf080d69a02574705068506ae7508347199336c3f36.exe
Token: 33	1756	39d7a5ddfc61d4ce34e76bf080d69a02574705068506ae7508347199336c3f36.exe
Token: 34	1756	39d7a5ddfc61d4ce34e76bf080d69a02574705068506ae7508347199336c3f36.exe
Token: 35	1756	39d7a5ddfc61d4ce34e76bf080d69a02574705068506ae7508347199336c3f36.exe

Suspicious use of WriteProcessMemory 16 IoCs

Processes:

39d7a5ddfc61d4ce34e76bf080d69a02574705068506ae7508347199336c3f36.execmd.execmd.exe

description	pid	process	target process
PID 1756 wrote to memory of 1676	1756	39d7a5ddfc61d4ce34e76bf080d69a02574705068506ae7508347199336c3f36.exe	cmd.exe
PID 1756 wrote to memory of 1676	1756	39d7a5ddfc61d4ce34e76bf080d69a02574705068506ae7508347199336c3f36.exe	cmd.exe
PID 1756 wrote to memory of 1676	1756	39d7a5ddfc61d4ce34e76bf080d69a02574705068506ae7508347199336c3f36.exe	cmd.exe
PID 1756 wrote to memory of 1676	1756	39d7a5ddfc61d4ce34e76bf080d69a02574705068506ae7508347199336c3f36.exe	cmd.exe
PID 1756 wrote to memory of 1364	1756	39d7a5ddfc61d4ce34e76bf080d69a02574705068506ae7508347199336c3f36.exe	cmd.exe
PID 1756 wrote to memory of 1364	1756	39d7a5ddfc61d4ce34e76bf080d69a02574705068506ae7508347199336c3f36.exe	cmd.exe
PID 1756 wrote to memory of 1364	1756	39d7a5ddfc61d4ce34e76bf080d69a02574705068506ae7508347199336c3f36.exe	cmd.exe
PID 1756 wrote to memory of 1364	1756	39d7a5ddfc61d4ce34e76bf080d69a02574705068506ae7508347199336c3f36.exe	cmd.exe
PID 1676 wrote to memory of 1352	1676	cmd.exe	attrib.exe
PID 1676 wrote to memory of 1352	1676	cmd.exe	attrib.exe
PID 1676 wrote to memory of 1352	1676	cmd.exe	attrib.exe
PID 1676 wrote to memory of 1352	1676	cmd.exe	attrib.exe
PID 1364 wrote to memory of 2020	1364	cmd.exe	attrib.exe
PID 1364 wrote to memory of 2020	1364	cmd.exe	attrib.exe
PID 1364 wrote to memory of 2020	1364	cmd.exe	attrib.exe
PID 1364 wrote to memory of 2020	1364	cmd.exe	attrib.exe

Views/modifies file attributes 1 TTPs 2 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exeattrib.exe

pid process

2020 attrib.exe
1352 attrib.exe

pid	process
2020	attrib.exe
1352	attrib.exe

C:\Users\Admin\AppData\Local\Temp\39d7a5ddfc61d4ce34e76bf080d69a02574705068506ae7508347199336c3f36.exe
"C:\Users\Admin\AppData\Local\Temp\39d7a5ddfc61d4ce34e76bf080d69a02574705068506ae7508347199336c3f36.exe"
1⤵
- Modifies WinLogon for persistence
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1756

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\39d7a5ddfc61d4ce34e76bf080d69a02574705068506ae7508347199336c3f36.exe" +s +h
2⤵
- Suspicious use of WriteProcessMemory
PID:1676

C:\Windows\SysWOW64\attrib.exe
attrib "C:\Users\Admin\AppData\Local\Temp\39d7a5ddfc61d4ce34e76bf080d69a02574705068506ae7508347199336c3f36.exe" +s +h
3⤵
- Sets file to hidden
- Views/modifies file attributes
PID:1352

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:1364

C:\Windows\SysWOW64\attrib.exe
attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
3⤵
- Sets file to hidden
- Views/modifies file attributes
PID:2020

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

2

T1112

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

memory/1352-57-0x0000000000000000-mapping.dmp

Download
memory/1364-56-0x0000000000000000-mapping.dmp

Download
memory/1676-55-0x0000000000000000-mapping.dmp

Download
memory/1756-54-0x0000000075A11000-0x0000000075A13000-memory.dmp

Filesize
8KB

Download
memory/2020-58-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads