45a231cc6b5a0863ea0f5615632e919d714cba452b2ac2ba25dae9754bad9a01

Analysis

max time kernel
150s
max time network
152s
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 18:02

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General

Target

2024-05-23_3d0e9d5ac5a60da7a2cc95a1f3bbb902_cryptolocker.exe
Size

41KB
MD5

3d0e9d5ac5a60da7a2cc95a1f3bbb902
SHA1

a7d3319c0d44f4d945d677d5b3d663ced58044bf
SHA256

45a231cc6b5a0863ea0f5615632e919d714cba452b2ac2ba25dae9754bad9a01
SHA512

fe0e318efb2ab095e8ad98e3f74783d1918be54be938420b445c9d80f58026d37a7aca69a31e20c100fc9e9ab3cdd32494539c95b31824083d9ffd8676af8c6a
SSDEEP

768:bA74zYcgT/Ekd0ryfjPIunqpeNswmT3HwnCD:bA6YcA/X6G0W143Qs

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

Processes:

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

Processes:

2024-05-23_3d0e9d5ac5a60da7a2cc95a1f3bbb902_cryptolocker.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1181767204-2009306918-3718769404-1000\Control Panel\International\Geo\Nation	2024-05-23_3d0e9d5ac5a60da7a2cc95a1f3bbb902_cryptolocker.exe

Executes dropped EXE 1 IoCs

Processes:

hasfj.exe

pid process

4324 hasfj.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
4324	hasfj.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

2024-05-23_3d0e9d5ac5a60da7a2cc95a1f3bbb902_cryptolocker.exe

description	pid	process	target process
PID 2232 wrote to memory of 4324	2232	2024-05-23_3d0e9d5ac5a60da7a2cc95a1f3bbb902_cryptolocker.exe	hasfj.exe
PID 2232 wrote to memory of 4324	2232	2024-05-23_3d0e9d5ac5a60da7a2cc95a1f3bbb902_cryptolocker.exe	hasfj.exe
PID 2232 wrote to memory of 4324	2232	2024-05-23_3d0e9d5ac5a60da7a2cc95a1f3bbb902_cryptolocker.exe	hasfj.exe

C:\Users\Admin\AppData\Local\Temp\2024-05-23_3d0e9d5ac5a60da7a2cc95a1f3bbb902_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-23_3d0e9d5ac5a60da7a2cc95a1f3bbb902_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2232

C:\Users\Admin\AppData\Local\Temp\hasfj.exe
"C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
2⤵
- Executes dropped EXE
PID:4324

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=4248,i,7012731823941922179,12386606396608877869,262144 --variations-seed-version --mojo-platform-channel-handle=4024 /prefetch:8
1⤵
PID:2968

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\hasfj.exe
Filesize
41KB

MD5
0c30037e081ddc4005197b721ada5c28

SHA1
63027f24c14ec17c1147b9b84f4b545f632d2636

SHA256
6652c60a2af1d1d743ba8cfc11926833ce58ef00de723cdb839547b4d112b77d

SHA512
3cc44dad6e1ff45b313e8ab89b2100d4dcf5bc1935a9e1da6829806e5c5283a459dd8e67361d43ff963737766bae6a8755b0ace5ddc848eb64c1eeea596c9701

Download Submit
memory/2232-0-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/2232-1-0x0000000003150000-0x0000000003156000-memory.dmp

Filesize
24KB

Download
memory/2232-8-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/4324-17-0x00000000022C0000-0x00000000022C6000-memory.dmp

Filesize
24KB

Download
memory/4324-23-0x00000000005E0000-0x00000000005E6000-memory.dmp

Filesize
24KB

Download