3090a37e591554d7406107df87b3dc21bda059df0bc66244e8abef6a5678af35

General

Target

file.exe
Size

4.4MB
MD5

4e8a7b03ff758f5c75ce992615a14fd0
SHA1

0110e12ae768872ea5c1b194dba50cbf74ec4d84
SHA256

3090a37e591554d7406107df87b3dc21bda059df0bc66244e8abef6a5678af35
SHA512

3fa53510e08ba1914f8cc6d34bb9c7fff544d23e365ca6e1d71d3bf022b0c3bc9bdc68cacc50a89af6744b2ba496fc0bc06e44a147f6ec8a44f446148330f3b9
SSDEEP

98304:1/rljWsSqkPe1hRa3Y1D6k8LFMF9aPfckJrLH+VFuIHQgFLOAkGkzdnEVomFHKnP:1BjOqjH+XMG0uIHQgFLOyomFHKnP

Score

9^/10

defense_evasion discovery execution impact persistence ransomware

Malware Config

Signatures

Deletes shadow copies 3 TTPs
Ransomware often targets backup files to inhibit system recovery.
ransomware defense_evasion impact execution

File Deletion
T1070.004

Inhibit System Recovery
T1490

Windows Management Instrumentation
T1047

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000\Software\Microsoft\Windows\CurrentVersion\Run\Skype	file.exe

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	file.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Interacts with shadow copies 3 TTPs 1 IoCs

Shadow copies are often targeted by ransomware to inhibit system recovery.

ransomware

File Deletion

T1070.004

Inhibit System Recovery

T1490

Direct Volume Access

T1006

pid	Process
1500	vssadmin.exe

Modifies registry class 3 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.r8cuvw91b\DefaultIcon	file.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.r8cuvw91b	file.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.r8cuvw91b\DefaultIcon\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\fkdjsadasd.ico"	file.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3060	file.exe
3060	file.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeBackupPrivilege	2876	vssvc.exe
Token: SeRestorePrivilege	2876	vssvc.exe
Token: SeAuditPrivilege	2876	vssvc.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
3060	file.exe
3060	file.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 3060 wrote to memory of 2484	3060	file.exe	31
PID 3060 wrote to memory of 2484	3060	file.exe	31
PID 3060 wrote to memory of 2484	3060	file.exe	31
PID 3060 wrote to memory of 2484	3060	file.exe	31
PID 2484 wrote to memory of 1500	2484	cmd.exe	33
PID 2484 wrote to memory of 1500	2484	cmd.exe	33
PID 2484 wrote to memory of 1500	2484	cmd.exe	33
PID 2484 wrote to memory of 1500	2484	cmd.exe	33

Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
ransomware

C:\Users\Admin\AppData\Local\Temp\file.exe
"C:\Users\Admin\AppData\Local\Temp\file.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3060
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c C:\Windows\SysNative\vssadmin.exe delete shadows /all /quiet
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2484
- - C:\Windows\system32\vssadmin.exe
    C:\Windows\SysNative\vssadmin.exe delete shadows /all /quiet
    3⤵
    - Interacts with shadow copies
    PID:1500

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2876

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Windows Management Instrumentation

1

T1047

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Direct Volume Access

1

T1006

Indicator Removal

2

T1070

File Deletion

Modify Registry

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Inhibit System Recovery

2

T1490

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Downloads

memory/3060-0-0x0000000003440000-0x0000000003523000-memory.dmp

Filesize
908KB

Download
memory/3060-2-0x0000000003440000-0x0000000003523000-memory.dmp

Filesize
908KB

Download
memory/3060-9-0x0000000003440000-0x0000000003523000-memory.dmp

Filesize
908KB

Download
memory/3060-10-0x0000000003440000-0x0000000003523000-memory.dmp

Filesize
908KB

Download
memory/3060-11-0x0000000003440000-0x0000000003523000-memory.dmp

Filesize
908KB

Download
memory/3060-12-0x0000000003440000-0x0000000003523000-memory.dmp

Filesize
908KB

Download
memory/3060-13-0x0000000003440000-0x0000000003523000-memory.dmp

Filesize
908KB

Download
memory/3060-14-0x0000000003440000-0x0000000003523000-memory.dmp

Filesize
908KB

Download
memory/3060-15-0x0000000003440000-0x0000000003523000-memory.dmp

Filesize
908KB

Download
memory/3060-16-0x0000000003440000-0x0000000003523000-memory.dmp

Filesize
908KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads