95d5c4a3bc2cf4846df307135ba603a4d8acc6ab539f6fbb17601f68c20b8877

Analysis

max time kernel
150s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20240221-en
resource tags

arch:x64arch:x86image:win10v2004-20240221-enlocale:en-usos:windows10-2004-x64system
submitted
25/02/2024, 00:25

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General

Target

2024-02-25_0738ed2a89ac5bd124cf38271087939f_cryptolocker.exe
Size

386KB
MD5

0738ed2a89ac5bd124cf38271087939f
SHA1

be3583088b5600e95ccf9a25faab20d2edc74aee
SHA256

95d5c4a3bc2cf4846df307135ba603a4d8acc6ab539f6fbb17601f68c20b8877
SHA512

fd23025bc9d444157525861889e744e79bbca9c759d87ddbb9de1f66567634511423266562a128a6c6be8e6b41660499372f8fd79372ab2157e5c5f30305a6ec
SSDEEP

6144:nnOsaQgAOjvrZFODJjBz3j1jTqQy6v2GGnugOtihzXU:nnOflT/ZFIjBz3xjTxynGUOUhXU

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x00060000000231fe-12.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-1-5-21-2828415587-3732861812-1919322417-1000\Control Panel\International\Geo\Nation	2024-02-25_0738ed2a89ac5bd124cf38271087939f_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
840	hasfj.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 3504 wrote to memory of 840	3504	2024-02-25_0738ed2a89ac5bd124cf38271087939f_cryptolocker.exe	87
PID 3504 wrote to memory of 840	3504	2024-02-25_0738ed2a89ac5bd124cf38271087939f_cryptolocker.exe	87
PID 3504 wrote to memory of 840	3504	2024-02-25_0738ed2a89ac5bd124cf38271087939f_cryptolocker.exe	87

C:\Users\Admin\AppData\Local\Temp\2024-02-25_0738ed2a89ac5bd124cf38271087939f_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-25_0738ed2a89ac5bd124cf38271087939f_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3504
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:840

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\hasfj.exe

Filesize
386KB

MD5
6f142370ca12553518636e1c3b917ac7

SHA1
30ed10440bcdb5d794375a1302400475c48b6831

SHA256
3603d026723333dee960cf4e2c0f41f11b62f372db7c9f01393d029499b56022

SHA512
f10dab9317a07c31ef32aa0773746db9234ad97d8831e131dcfdb7f10395ddb04b42f3b8ee13f6b90fa57fa984184fd9af214af34c909970eeb38058e5cb4266

Download Submit
memory/840-17-0x0000000002ED0000-0x0000000002ED6000-memory.dmp

Filesize
24KB

Download
memory/840-19-0x0000000002110000-0x0000000002116000-memory.dmp

Filesize
24KB

Download
memory/3504-0-0x0000000002D60000-0x0000000002D66000-memory.dmp

Filesize
24KB

Download
memory/3504-1-0x0000000002D60000-0x0000000002D66000-memory.dmp

Filesize
24KB

Download
memory/3504-2-0x0000000003010000-0x0000000003016000-memory.dmp

Filesize
24KB

Download