f56c6137e754a283941d5256a23884ca22c98a4cc707111e5d01daa1c045bce1

Analysis

max time kernel
148s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
23-05-2024 02:25

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-05-23_26c0c225355fda7980927ee012398df6_cryptolocker.exe
Size

44KB
MD5

26c0c225355fda7980927ee012398df6
SHA1

b9d03a9945e093b488e1db685486e342daae78e2
SHA256

f56c6137e754a283941d5256a23884ca22c98a4cc707111e5d01daa1c045bce1
SHA512

9a13ac7295201c3f643302ececeefc734dba817755a0b20d35992e75b74ab5e2ec73e555437199c33dffcd93a9488b6bce62878b6a57d72b762722ddff2bd2ec
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBVaD3TP7DFHuRcD9H0:X6QFElP6n+gJQMOtEvwDpjBmzDkWDt0

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Local\Temp\asih.exe	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Local\Temp\asih.exe	CryptoLocker_set1

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:

2024-05-23_26c0c225355fda7980927ee012398df6_cryptolocker.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3558294865-3673844354-2255444939-1000\Control Panel\International\Geo\Nation	2024-05-23_26c0c225355fda7980927ee012398df6_cryptolocker.exe

Executes dropped EXE 1 IoCs

Processes:

asih.exe

pid process

5016 asih.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
5016	asih.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

2024-05-23_26c0c225355fda7980927ee012398df6_cryptolocker.exe

description	pid	process	target process
PID 2008 wrote to memory of 5016	2008	2024-05-23_26c0c225355fda7980927ee012398df6_cryptolocker.exe	asih.exe
PID 2008 wrote to memory of 5016	2008	2024-05-23_26c0c225355fda7980927ee012398df6_cryptolocker.exe	asih.exe
PID 2008 wrote to memory of 5016	2008	2024-05-23_26c0c225355fda7980927ee012398df6_cryptolocker.exe	asih.exe

C:\Users\Admin\AppData\Local\Temp\2024-05-23_26c0c225355fda7980927ee012398df6_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-23_26c0c225355fda7980927ee012398df6_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2008
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:5016

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\asih.exe

Filesize
44KB

MD5
20e4adc54076ed873149cb912f2deb95

SHA1
611e5c3fb2fbb6c7c62a4125b7bca2b9881e5d27

SHA256
5f4babb77e67404795abeead4453877191f56eab38cca69f980670c5a8d9084f

SHA512
8bfe7ab5499908c11204b3b92b893712acbbbd99c63c0cf026b37222fd533ed6e62e0d5c4c5b4955d3b77862ec56c9e447ba034ce205a05bcf4873c1b986fd94

Download Submit
memory/2008-0-0x0000000000810000-0x0000000000816000-memory.dmp

Filesize
24KB

Download
memory/2008-2-0x0000000001F80000-0x0000000001F86000-memory.dmp

Filesize
24KB

Download
memory/2008-1-0x0000000000810000-0x0000000000816000-memory.dmp

Filesize
24KB

Download
memory/5016-17-0x00000000006D0000-0x00000000006D6000-memory.dmp

Filesize
24KB

Download
memory/5016-23-0x0000000000660000-0x0000000000666000-memory.dmp

Filesize
24KB

Download