a850ecf417220d71a76126fa87e17ef2f8899b2767f9c237fb2498637dbab593

Analysis

max time kernel
151s
max time network
158s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
23-11-2022 17:11

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General

Target

a850ecf417220d71a76126fa87e17ef2f8899b2767f9c237fb2498637dbab593.exe
Size

72KB
MD5

52af2e2d798f36edf8130224e4125300
SHA1

36d09b4b4b034e41621e9f5565f081828cb8d8ba
SHA256

a850ecf417220d71a76126fa87e17ef2f8899b2767f9c237fb2498637dbab593
SHA512

9b9b0031068733126f6b87ce5617d909fbdd1edb15b1ce68b6ce5ff36ce26f47246a99772bb6c13d1bcd190cc54f79382ce13471a197a09418ce3a79f05ef164
SSDEEP

1536:+msEVUYxgU6kl+0sTSVYSN/4/xEKb6JVoNHIU9P6E5W:+HYxgU6kl+0sTSVYw/4/xEKb6JVoNHIZ

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:

a850ecf417220d71a76126fa87e17ef2f8899b2767f9c237fb2498637dbab593.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation	a850ecf417220d71a76126fa87e17ef2f8899b2767f9c237fb2498637dbab593.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:

a850ecf417220d71a76126fa87e17ef2f8899b2767f9c237fb2498637dbab593.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	a850ecf417220d71a76126fa87e17ef2f8899b2767f9c237fb2498637dbab593.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	a850ecf417220d71a76126fa87e17ef2f8899b2767f9c237fb2498637dbab593.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

532 tasklist.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

tasklist.exe

description pid process

Token: SeDebugPrivilege 532 tasklist.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

a850ecf417220d71a76126fa87e17ef2f8899b2767f9c237fb2498637dbab593.exe

pid process

2220 a850ecf417220d71a76126fa87e17ef2f8899b2767f9c237fb2498637dbab593.exe

pid	process
532	tasklist.exe

description	pid	process
Token: SeDebugPrivilege	532	tasklist.exe

pid	process
2220	a850ecf417220d71a76126fa87e17ef2f8899b2767f9c237fb2498637dbab593.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

a850ecf417220d71a76126fa87e17ef2f8899b2767f9c237fb2498637dbab593.execmd.exe

description	pid	process	target process
PID 2220 wrote to memory of 4484	2220	a850ecf417220d71a76126fa87e17ef2f8899b2767f9c237fb2498637dbab593.exe	cmd.exe
PID 2220 wrote to memory of 4484	2220	a850ecf417220d71a76126fa87e17ef2f8899b2767f9c237fb2498637dbab593.exe	cmd.exe
PID 2220 wrote to memory of 4484	2220	a850ecf417220d71a76126fa87e17ef2f8899b2767f9c237fb2498637dbab593.exe	cmd.exe
PID 4484 wrote to memory of 532	4484	cmd.exe	tasklist.exe
PID 4484 wrote to memory of 532	4484	cmd.exe	tasklist.exe
PID 4484 wrote to memory of 532	4484	cmd.exe	tasklist.exe

C:\Users\Admin\AppData\Local\Temp\a850ecf417220d71a76126fa87e17ef2f8899b2767f9c237fb2498637dbab593.exe
"C:\Users\Admin\AppData\Local\Temp\a850ecf417220d71a76126fa87e17ef2f8899b2767f9c237fb2498637dbab593.exe"
1⤵
- Checks computer location settings
- Maps connected drives based on registry
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2220

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c tasklist&&del a850ecf417220d71a76126fa87e17ef2f8
2⤵
- Suspicious use of WriteProcessMemory
PID:4484

C:\Windows\SysWOW64\tasklist.exe
tasklist
3⤵
- Enumerates processes with tasklist
- Suspicious use of AdjustPrivilegeToken
PID:532

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Peripheral Device Discovery

T1120

Process Discovery

T1057

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/532-135-0x0000000000000000-mapping.dmp

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memory/4484-134-0x0000000000000000-mapping.dmp

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