a8f3cb95fa8e9204310c7643cf4d8826d6fa6190d66b1904180b8baee646ae85

Analysis

max time kernel
143s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
11/05/2024, 00:59

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

a8f3cb95fa8e9204310c7643cf4d8826d6fa6190d66b1904180b8baee646ae85.exe
Size

40KB
MD5

313daa68a68444ad7ad298995586807c
SHA1

1c9f17bffef4316513e1e11f53cf3d05176b7016
SHA256

a8f3cb95fa8e9204310c7643cf4d8826d6fa6190d66b1904180b8baee646ae85
SHA512

ff9b1cd48006cf057ca983677ed4bc202bf3578cab923dd7edccff9a022d62ff6b3214ac5822ba1e21303067273df2ae5f44a8c18888d2ca36098ab29fd96995
SSDEEP

768:UEEmoQDj/xnMp+yptndwe/PWQtOOtEvwDpjLeJAsKuD+M:ZzFbxmLPWQMOtEvwDpjLeJAsKcR

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x00090000000233e4-13.dat	CryptoLocker_rule2

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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-711569230-3659488422-571408806-1000\Control Panel\International\Geo\Nation	a8f3cb95fa8e9204310c7643cf4d8826d6fa6190d66b1904180b8baee646ae85.exe

Executes dropped EXE 1 IoCs

pid	Process
2660	misid.exe

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

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4956 wrote to memory of 2660	4956	a8f3cb95fa8e9204310c7643cf4d8826d6fa6190d66b1904180b8baee646ae85.exe	83
PID 4956 wrote to memory of 2660	4956	a8f3cb95fa8e9204310c7643cf4d8826d6fa6190d66b1904180b8baee646ae85.exe	83
PID 4956 wrote to memory of 2660	4956	a8f3cb95fa8e9204310c7643cf4d8826d6fa6190d66b1904180b8baee646ae85.exe	83

C:\Users\Admin\AppData\Local\Temp\a8f3cb95fa8e9204310c7643cf4d8826d6fa6190d66b1904180b8baee646ae85.exe
"C:\Users\Admin\AppData\Local\Temp\a8f3cb95fa8e9204310c7643cf4d8826d6fa6190d66b1904180b8baee646ae85.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4956
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2660

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\misid.exe

Filesize
40KB

MD5
91fef9eb66edc229cd93acb91db7e8c4

SHA1
0ee3c71b2aa755fe7133dd0c5175c09ab604e6d6

SHA256
1cef52b2e46e3385ea4ad58b22d4f9b6239916bc0499f13f131a6a15f7a810d8

SHA512
88c29d08b0598f2239d730c0691fed91982ba356c58dd87999d747a0d3b0684c6235bf05eae194437c721b6cda8a0559e2e5e7367763c92b94cbae16e58d3479

Download Submit
memory/2660-17-0x00000000004E0000-0x00000000004E3000-memory.dmp

Filesize
12KB

Download
memory/2660-19-0x00000000006D0000-0x00000000006D6000-memory.dmp

Filesize
24KB

Download
memory/2660-25-0x00000000006B0000-0x00000000006B6000-memory.dmp

Filesize
24KB

Download
memory/2660-26-0x00000000004E0000-0x00000000004E3000-memory.dmp

Filesize
12KB

Download
memory/4956-0-0x0000000000450000-0x0000000000490000-memory.dmp

Filesize
256KB

Download
memory/4956-1-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/4956-2-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/4956-9-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download