803a50650c421734e2d563f2fb2735c30645413c43aa65047f0da5c04bca6295

Analysis

max time kernel
151s
max time network
171s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
24-11-2022 06:14

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General

Target

803a50650c421734e2d563f2fb2735c30645413c43aa65047f0da5c04bca6295.exe
Size

359KB
MD5

8e1bdc1c484bc03880c67424d80e351d
SHA1

122a845fa053dcbc16a7148313f27525619a1818
SHA256

803a50650c421734e2d563f2fb2735c30645413c43aa65047f0da5c04bca6295
SHA512

fe52ee11e8f8ed9fba217ad7c26a3bde63c9fd6e1b6ae0b9401a1b848be7567c39e8bba322225dad86185883fc3e319a115651af747bfecbd5ea91593504d320
SSDEEP

6144:NqSOoNLW7+g9suW/UMhay+I/oRiMhqZcLrAtlb37uIyg7byBVgkQ:NqkNiJ9sb/UwapQoxhycLrauIyYy

Score

9^/10

persistence ransomware

Malware Config

Signatures

Deletes shadow copies 2 TTPs
Ransomware often targets backup files to inhibit system recovery.
ransomware

File Deletion
T1107

Inhibit System Recovery
T1490

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

803a50650c421734e2d563f2fb2735c30645413c43aa65047f0da5c04bca6295.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Control Panel\International\Geo\Nation	803a50650c421734e2d563f2fb2735c30645413c43aa65047f0da5c04bca6295.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

803a50650c421734e2d563f2fb2735c30645413c43aa65047f0da5c04bca6295.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Vault = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\803a50650c421734e2d563f2fb2735c30645413c43aa65047f0da5c04bca6295.exe\""	803a50650c421734e2d563f2fb2735c30645413c43aa65047f0da5c04bca6295.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Interacts with shadow copies 2 TTPs 1 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
ransomware

File Deletion
T1107

Inhibit System Recovery
T1490

Processes:

vssadmin.exe

pid process

2640 vssadmin.exe

pid	process
2640	vssadmin.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

803a50650c421734e2d563f2fb2735c30645413c43aa65047f0da5c04bca6295.exe

pid	process
1608	803a50650c421734e2d563f2fb2735c30645413c43aa65047f0da5c04bca6295.exe
1608	803a50650c421734e2d563f2fb2735c30645413c43aa65047f0da5c04bca6295.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes:

803a50650c421734e2d563f2fb2735c30645413c43aa65047f0da5c04bca6295.exevssvc.exe

description	pid	process
Token: SeDebugPrivilege	1608	803a50650c421734e2d563f2fb2735c30645413c43aa65047f0da5c04bca6295.exe
Token: SeBackupPrivilege	2544	vssvc.exe
Token: SeRestorePrivilege	2544	vssvc.exe
Token: SeAuditPrivilege	2544	vssvc.exe

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

803a50650c421734e2d563f2fb2735c30645413c43aa65047f0da5c04bca6295.exe

description	pid	process	target process
PID 1608 wrote to memory of 2640	1608	803a50650c421734e2d563f2fb2735c30645413c43aa65047f0da5c04bca6295.exe	vssadmin.exe
PID 1608 wrote to memory of 2640	1608	803a50650c421734e2d563f2fb2735c30645413c43aa65047f0da5c04bca6295.exe	vssadmin.exe

C:\Users\Admin\AppData\Local\Temp\803a50650c421734e2d563f2fb2735c30645413c43aa65047f0da5c04bca6295.exe
"C:\Users\Admin\AppData\Local\Temp\803a50650c421734e2d563f2fb2735c30645413c43aa65047f0da5c04bca6295.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1608

C:\Windows\System32\vssadmin.exe
"C:\Windows\System32\vssadmin.exe" delete shadows /all /quiet
2⤵
- Interacts with shadow copies
PID:2640

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2544

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

File Deletion

T1107

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Inhibit System Recovery

T1490

Replay Monitor

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Downloads

memory/1608-132-0x00007FF99C9A0000-0x00007FF99D3D6000-memory.dmp

Filesize
10.2MB

Download
memory/2640-133-0x0000000000000000-mapping.dmp

Download