54a144181f0bd513364b8999db018836ad3051cfcd1d22a1a625c0baa6fdbb4e

Analysis

max time kernel
150s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
12/02/2024, 20:33

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General

Target

2024-02-12_df55cf0e5aa893e08b81a61df5ac114c_cryptolocker.exe
Size

54KB
MD5

df55cf0e5aa893e08b81a61df5ac114c
SHA1

b97112ea098a6a904793f6451f891ed5c40dd755
SHA256

54a144181f0bd513364b8999db018836ad3051cfcd1d22a1a625c0baa6fdbb4e
SHA512

42fee0936b3df09035b97605328bf044a537f983f1066bc18a72b3819018462e145c678a94cd0b034e1ebf253134aa50804f82fa3180189feb7cb3b7940a3bd4
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/BtOOtEvwDpjBVaD3E09vaTiSfQaV2L0zNnm:X6QFElP6n+gJBMOtEvwDpjBtE1yILum

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000600000002320d-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000600000002320d-12.dat	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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000\Control Panel\International\Geo\Nation	2024-02-12_df55cf0e5aa893e08b81a61df5ac114c_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3516	asih.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 3048 wrote to memory of 3516	3048	2024-02-12_df55cf0e5aa893e08b81a61df5ac114c_cryptolocker.exe	84
PID 3048 wrote to memory of 3516	3048	2024-02-12_df55cf0e5aa893e08b81a61df5ac114c_cryptolocker.exe	84
PID 3048 wrote to memory of 3516	3048	2024-02-12_df55cf0e5aa893e08b81a61df5ac114c_cryptolocker.exe	84

C:\Users\Admin\AppData\Local\Temp\2024-02-12_df55cf0e5aa893e08b81a61df5ac114c_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-12_df55cf0e5aa893e08b81a61df5ac114c_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3048
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:3516

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

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Downloads

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

Filesize
54KB

MD5
9ae4ecab7cce36360baefcf119bbfcf5

SHA1
a6ba43302a965cc3cdb8c5a0d7ef9c83f4dcc6ed

SHA256
d950f5942460fda1187401ba1941d95d00b54a928beb836a0e43dc26fe0a286c

SHA512
69d811b4190c7cd97d3e4b5678cfbf772853bb07cfbd55cb83d72d48d545f6cf0daab35e5e5359a54ca7a6b20ec3d26d8c1c94dcbdeb2fdae06f320ae4d3ed77

Download Submit
memory/3048-0-0x0000000000670000-0x0000000000676000-memory.dmp

Filesize
24KB

Download
memory/3048-1-0x0000000000670000-0x0000000000676000-memory.dmp

Filesize
24KB

Download
memory/3048-2-0x0000000002230000-0x0000000002236000-memory.dmp

Filesize
24KB

Download
memory/3516-17-0x00000000006D0000-0x00000000006D6000-memory.dmp

Filesize
24KB

Download
memory/3516-19-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download