a5efcbb554840af4b9ee2b32402a7e264a30186b1e7ddbbbe5d731a22679dd51

Analysis

max time kernel
138s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
23-11-2022 18:57

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General

Target

a5efcbb554840af4b9ee2b32402a7e264a30186b1e7ddbbbe5d731a22679dd51.exe
Size

20KB
MD5

4578e1fcfb8bd1ad94cc0e876dc8e2b0
SHA1

bd79116ea7e4db060fbb6e7cfe0ebc6bd862bfa0
SHA256

a5efcbb554840af4b9ee2b32402a7e264a30186b1e7ddbbbe5d731a22679dd51
SHA512

046af4f5cb0508070dc2c0725e3b5159d7c974f418ccf1f9b6414060b6743b27b11d6700b3d1670e461ac137017a436d41662e3d2e434f920b5bda29bc3d989e
SSDEEP

384:Jbldi7mfZsDiM3PfsBhnRGjLbjnsJzlKDfeMa1:Jbldumf41ETxKDfez

Score

7^/10

Malware Config

Signatures

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:

a5efcbb554840af4b9ee2b32402a7e264a30186b1e7ddbbbe5d731a22679dd51.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-4060001867-1434967833-2212371794-1000\Control Panel\International\Geo\Nation	a5efcbb554840af4b9ee2b32402a7e264a30186b1e7ddbbbe5d731a22679dd51.exe

Maps connected drives based on registry 3 TTPs 2 IoCs

Disk information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

a5efcbb554840af4b9ee2b32402a7e264a30186b1e7ddbbbe5d731a22679dd51.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	a5efcbb554840af4b9ee2b32402a7e264a30186b1e7ddbbbe5d731a22679dd51.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	a5efcbb554840af4b9ee2b32402a7e264a30186b1e7ddbbbe5d731a22679dd51.exe

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

System Information Discovery
T1082
Enumerates processes with tasklist 1 TTPs 1 IoCs

Process Discovery
T1057

Processes:

tasklist.exe

pid process

2792 tasklist.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

tasklist.exe

description pid process

Token: SeDebugPrivilege 2792 tasklist.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

a5efcbb554840af4b9ee2b32402a7e264a30186b1e7ddbbbe5d731a22679dd51.exe

pid process

3460 a5efcbb554840af4b9ee2b32402a7e264a30186b1e7ddbbbe5d731a22679dd51.exe

pid	process
2792	tasklist.exe

description	pid	process
Token: SeDebugPrivilege	2792	tasklist.exe

pid	process
3460	a5efcbb554840af4b9ee2b32402a7e264a30186b1e7ddbbbe5d731a22679dd51.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

a5efcbb554840af4b9ee2b32402a7e264a30186b1e7ddbbbe5d731a22679dd51.execmd.exe

description	pid	process	target process
PID 3460 wrote to memory of 4976	3460	a5efcbb554840af4b9ee2b32402a7e264a30186b1e7ddbbbe5d731a22679dd51.exe	cmd.exe
PID 3460 wrote to memory of 4976	3460	a5efcbb554840af4b9ee2b32402a7e264a30186b1e7ddbbbe5d731a22679dd51.exe	cmd.exe
PID 3460 wrote to memory of 4976	3460	a5efcbb554840af4b9ee2b32402a7e264a30186b1e7ddbbbe5d731a22679dd51.exe	cmd.exe
PID 4976 wrote to memory of 2792	4976	cmd.exe	tasklist.exe
PID 4976 wrote to memory of 2792	4976	cmd.exe	tasklist.exe
PID 4976 wrote to memory of 2792	4976	cmd.exe	tasklist.exe

C:\Users\Admin\AppData\Local\Temp\a5efcbb554840af4b9ee2b32402a7e264a30186b1e7ddbbbe5d731a22679dd51.exe
"C:\Users\Admin\AppData\Local\Temp\a5efcbb554840af4b9ee2b32402a7e264a30186b1e7ddbbbe5d731a22679dd51.exe"
1⤵
- Checks computer location settings
- Maps connected drives based on registry
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3460

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c tasklist&&del a5efcbb554840af4b9ee2b32402a7e264a30186b1e7ddbbbe5d731a22679dd51.exe
2⤵
- Suspicious use of WriteProcessMemory
PID:4976

C:\Windows\SysWOW64\tasklist.exe
tasklist
3⤵
- Enumerates processes with tasklist
- Suspicious use of AdjustPrivilegeToken
PID:2792

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Peripheral Device Discovery

T1120

Process Discovery

T1057

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/2792-135-0x0000000000000000-mapping.dmp

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memory/4976-134-0x0000000000000000-mapping.dmp

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