393ddd9d73781aad8e645567a2857139d86da7f3684674bd66abc8d2602774a5

Analysis

max time kernel
148s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
23-05-2024 02:25

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General

Target

2024-05-23_26b70d8c9319d3dafc24cdc66be96222_cryptolocker.exe
Size

43KB
MD5

26b70d8c9319d3dafc24cdc66be96222
SHA1

d50008e3aa0a76d216f0cf88db281a9c5caafe99
SHA256

393ddd9d73781aad8e645567a2857139d86da7f3684674bd66abc8d2602774a5
SHA512

18d2c7f154804ec7aedf1ad22589daa9d6555f80b4efdabe8d3653b9a6aa1534d4cba746ee9016bc2be507f45ba1b859c31fc535fb6be9e05863c01d87ce98f6
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBVaD3TP7DFHuRc7:X6QFElP6n+gJQMOtEvwDpjBmzDkW7

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_26b70d8c9319d3dafc24cdc66be96222_cryptolocker.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-540404634-651139247-2967210625-1000\Control Panel\International\Geo\Nation	2024-05-23_26b70d8c9319d3dafc24cdc66be96222_cryptolocker.exe

Executes dropped EXE 1 IoCs

Processes:

asih.exe

pid process

1448 asih.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
1448	asih.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

2024-05-23_26b70d8c9319d3dafc24cdc66be96222_cryptolocker.exe

description	pid	process	target process
PID 4988 wrote to memory of 1448	4988	2024-05-23_26b70d8c9319d3dafc24cdc66be96222_cryptolocker.exe	asih.exe
PID 4988 wrote to memory of 1448	4988	2024-05-23_26b70d8c9319d3dafc24cdc66be96222_cryptolocker.exe	asih.exe
PID 4988 wrote to memory of 1448	4988	2024-05-23_26b70d8c9319d3dafc24cdc66be96222_cryptolocker.exe	asih.exe

C:\Users\Admin\AppData\Local\Temp\2024-05-23_26b70d8c9319d3dafc24cdc66be96222_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-23_26b70d8c9319d3dafc24cdc66be96222_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4988

C:\Users\Admin\AppData\Local\Temp\asih.exe
"C:\Users\Admin\AppData\Local\Temp\asih.exe"
2⤵
- Executes dropped EXE
PID:1448

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\asih.exe
Filesize
43KB

MD5
6725371e27d2b51dc482ab3ba33c934b

SHA1
1e1917032711859cc29ac55d995a601b23f3e17c

SHA256
80bc82078fdea0358b61c8698f44aa6c1d399bff73c6ea23b4be7e1460a0eabd

SHA512
f1031b0f84e36a393d9f3e49d9893f96792c81cd3690f3db77c402bdeac5bc588b2fcdf9708a6b8b721b7b55c1c216ef76c2479d21bd0065397d851de39332dd

Download Submit
memory/1448-17-0x0000000002060000-0x0000000002066000-memory.dmp

Filesize
24KB

Download
memory/1448-23-0x0000000002140000-0x0000000002146000-memory.dmp

Filesize
24KB

Download
memory/4988-0-0x0000000002050000-0x0000000002056000-memory.dmp

Filesize
24KB

Download
memory/4988-1-0x0000000002070000-0x0000000002076000-memory.dmp

Filesize
24KB

Download
memory/4988-8-0x0000000002050000-0x0000000002056000-memory.dmp

Filesize
24KB

Download