350ba7fca67721c74385faff083914ecdd66ef107a765dfb7ac08b38d5c9c0bd

Analysis

max time kernel
290s
max time network
119s
platform
windows7_x64
resource
win7-20240419-en
resource tags

arch:x64arch:x86image:win7-20240419-enlocale:en-usos:windows7-x64system
submitted
14/05/2024, 04:59

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General

Target

350ba7fca67721c74385faff083914ecdd66ef107a765dfb7ac08b38d5c9c0bd.exe
Size

737KB
MD5

0bf7bc20496143a9f028e77ab47b4698
SHA1

aa54013aeb502b4a936331deb76a6411f1f1ade7
SHA256

350ba7fca67721c74385faff083914ecdd66ef107a765dfb7ac08b38d5c9c0bd
SHA512

5e94cd77c4ad6dfa1064915ca0f4d117a2e3a4e924d05a16df0b223a5a0cbcb6124627e41d184aa0584f3ff3bbd5f9f913964887c7eb140e105317d4f5709981
SSDEEP

12288:bO+sm75a7DI9Mv53VI/XfaUs442JbV24chSS1i2wZbDFMMWzVFq:rh75a7M9S3VYa4npY4cFM2MWhY

Score

9^/10

defense_evasion execution impact 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

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2092	3020	WerFault.exe	27

Interacts with shadow copies 2 TTPs 1 IoCs

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

ransomware

File Deletion

T1070.004

Inhibit System Recovery

T1490

pid	Process
2780	vssadmin.exe

Modifies registry class 3 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.taovhsr3u\DefaultIcon\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\fkdjsadasd.ico"	350ba7fca67721c74385faff083914ecdd66ef107a765dfb7ac08b38d5c9c0bd.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.taovhsr3u\DefaultIcon	350ba7fca67721c74385faff083914ecdd66ef107a765dfb7ac08b38d5c9c0bd.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.taovhsr3u	350ba7fca67721c74385faff083914ecdd66ef107a765dfb7ac08b38d5c9c0bd.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeBackupPrivilege	3032	vssvc.exe
Token: SeRestorePrivilege	3032	vssvc.exe
Token: SeAuditPrivilege	3032	vssvc.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 3020 wrote to memory of 1828	3020	350ba7fca67721c74385faff083914ecdd66ef107a765dfb7ac08b38d5c9c0bd.exe	28
PID 3020 wrote to memory of 1828	3020	350ba7fca67721c74385faff083914ecdd66ef107a765dfb7ac08b38d5c9c0bd.exe	28
PID 3020 wrote to memory of 1828	3020	350ba7fca67721c74385faff083914ecdd66ef107a765dfb7ac08b38d5c9c0bd.exe	28
PID 3020 wrote to memory of 1828	3020	350ba7fca67721c74385faff083914ecdd66ef107a765dfb7ac08b38d5c9c0bd.exe	28
PID 1828 wrote to memory of 2780	1828	cmd.exe	30
PID 1828 wrote to memory of 2780	1828	cmd.exe	30
PID 1828 wrote to memory of 2780	1828	cmd.exe	30
PID 1828 wrote to memory of 2780	1828	cmd.exe	30
PID 3020 wrote to memory of 2092	3020	350ba7fca67721c74385faff083914ecdd66ef107a765dfb7ac08b38d5c9c0bd.exe	33
PID 3020 wrote to memory of 2092	3020	350ba7fca67721c74385faff083914ecdd66ef107a765dfb7ac08b38d5c9c0bd.exe	33
PID 3020 wrote to memory of 2092	3020	350ba7fca67721c74385faff083914ecdd66ef107a765dfb7ac08b38d5c9c0bd.exe	33
PID 3020 wrote to memory of 2092	3020	350ba7fca67721c74385faff083914ecdd66ef107a765dfb7ac08b38d5c9c0bd.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\350ba7fca67721c74385faff083914ecdd66ef107a765dfb7ac08b38d5c9c0bd.exe
"C:\Users\Admin\AppData\Local\Temp\350ba7fca67721c74385faff083914ecdd66ef107a765dfb7ac08b38d5c9c0bd.exe"
1⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:3020
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c C:\Windows\SysNative\vssadmin.exe delete shadows /all /quiet
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1828
- - C:\Windows\system32\vssadmin.exe
    C:\Windows\SysNative\vssadmin.exe delete shadows /all /quiet
    3⤵
    - Interacts with shadow copies
    PID:2780
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3020 -s 320
  2⤵
  - Program crash
  PID:2092

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3032

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Windows Management Instrumentation

T1047

Persistence

Privilege Escalation

Defense Evasion

Indicator Removal

T1070

File Deletion

T1070.004

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact