a2d0f28424df983f8d99454c217ed0aaa08cf173686aa79919c15788cc82944e

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
21-05-2024 15:40

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-05-21_69af2198a3304f509eb4f46d92276ed8_cryptolocker.exe
Size

49KB
MD5

69af2198a3304f509eb4f46d92276ed8
SHA1

73a9184b51c64f4ba6ffbb674424bc0226175175
SHA256

a2d0f28424df983f8d99454c217ed0aaa08cf173686aa79919c15788cc82944e
SHA512

b1712077325ea9f280d935194e887c3e5a4413897fb489eda555ecdbf9d91eafcca0bf299b01f0f82bbbd434cae071102eb2a43678d3e65ac1067912b32ff16f
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/BtOOtEvwDpjBVaD3E09vdXfF:X6QFElP6n+gJBMOtEvwDpjBtEdXfF

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:

2024-05-21_69af2198a3304f509eb4f46d92276ed8_cryptolocker.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-4018855536-2201274732-320770143-1000\Control Panel\International\Geo\Nation	2024-05-21_69af2198a3304f509eb4f46d92276ed8_cryptolocker.exe

Executes dropped EXE 1 IoCs

Processes:

asih.exe

pid process

4192 asih.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
4192	asih.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

2024-05-21_69af2198a3304f509eb4f46d92276ed8_cryptolocker.exe

description	pid	process	target process
PID 1852 wrote to memory of 4192	1852	2024-05-21_69af2198a3304f509eb4f46d92276ed8_cryptolocker.exe	asih.exe
PID 1852 wrote to memory of 4192	1852	2024-05-21_69af2198a3304f509eb4f46d92276ed8_cryptolocker.exe	asih.exe
PID 1852 wrote to memory of 4192	1852	2024-05-21_69af2198a3304f509eb4f46d92276ed8_cryptolocker.exe	asih.exe

C:\Users\Admin\AppData\Local\Temp\2024-05-21_69af2198a3304f509eb4f46d92276ed8_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-21_69af2198a3304f509eb4f46d92276ed8_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1852

C:\Users\Admin\AppData\Local\Temp\asih.exe
"C:\Users\Admin\AppData\Local\Temp\asih.exe"
2⤵
- Executes dropped EXE
PID:4192

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
49KB

MD5
12572b18cc898a820058d016da64ad08

SHA1
599665dc08451045249b93212bb7738e6626d356

SHA256
c4aa5786d18089182c9571424d5bbca6f9cc078238414ad0757d92d777409b36

SHA512
ffd9ce215e8e5c92c579e424b6208a49c46c72d6f211b95cae8c06c59638e780dfc663359a854a0e9075f9a21c6cd26ff31ab49caeceed069ea332ef6673cf62

Download Submit
memory/1852-0-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/1852-1-0x00000000007D0000-0x00000000007D6000-memory.dmp

Filesize
24KB

Download
memory/1852-8-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/4192-17-0x00000000005C0000-0x00000000005C6000-memory.dmp

Filesize
24KB

Download
memory/4192-23-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download