e98c3eeeeb99f3691ef90ac21cc8ae1778257e8ab2b352e7d91689332bb9a0a6

Analysis

max time kernel
151s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
21-05-2024 15:41

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General

Target

2024-05-21_08abdb9662f0e4c4e64377c3cb8d71bb_cryptolocker.exe
Size

36KB
MD5

08abdb9662f0e4c4e64377c3cb8d71bb
SHA1

18d52529feaffceb09d6feacf3c57639e961401c
SHA256

e98c3eeeeb99f3691ef90ac21cc8ae1778257e8ab2b352e7d91689332bb9a0a6
SHA512

4410c27d8dc61170283d47a9febbe775a0e0e6447c51082329b4da513d0b94ad9ac5ff9b519a2243d09bea4ef7c47c47fe1615ed8b467104f6ac9d15d455944d
SSDEEP

384:bA74uGLLQRcsdeQ72ngEr4K7YmE8j60nrlwfjDUgIunIVpeNs23mAA6lx+Z4:bA74zYcgT/Ekd0ryfjPIunqpeNswm6+i

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:

2024-05-21_08abdb9662f0e4c4e64377c3cb8d71bb_cryptolocker.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation	2024-05-21_08abdb9662f0e4c4e64377c3cb8d71bb_cryptolocker.exe

Executes dropped EXE 1 IoCs

Processes:

hasfj.exe

pid process

1308 hasfj.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
1308	hasfj.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

2024-05-21_08abdb9662f0e4c4e64377c3cb8d71bb_cryptolocker.exe

description	pid	process	target process
PID 2388 wrote to memory of 1308	2388	2024-05-21_08abdb9662f0e4c4e64377c3cb8d71bb_cryptolocker.exe	hasfj.exe
PID 2388 wrote to memory of 1308	2388	2024-05-21_08abdb9662f0e4c4e64377c3cb8d71bb_cryptolocker.exe	hasfj.exe
PID 2388 wrote to memory of 1308	2388	2024-05-21_08abdb9662f0e4c4e64377c3cb8d71bb_cryptolocker.exe	hasfj.exe

C:\Users\Admin\AppData\Local\Temp\2024-05-21_08abdb9662f0e4c4e64377c3cb8d71bb_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-21_08abdb9662f0e4c4e64377c3cb8d71bb_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2388

C:\Users\Admin\AppData\Local\Temp\hasfj.exe
"C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
2⤵
- Executes dropped EXE
PID:1308

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 --mojo-platform-channel-handle=4240 --field-trial-handle=2692,i,8678872182442199182,12502579059484928042,262144 --variations-seed-version /prefetch:8
1⤵
PID:4440

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
36KB

MD5
49d20b9336c5eab6ad4d814cb0b99a7a

SHA1
3a6cb86a87e52e786dc9efaa974a12c03499cb95

SHA256
3d75d00dd4e81811c64fb43a8a32003a0e936cfdee086f5589674f50b636afc0

SHA512
ce2b1bb2ab8767400075b83cdd0897b5a330d1c2eedc11056a9d521f223bd6f159a2419555dfc649e6ed018e520338e3e7e18153fb5bc70edb586f4cba873ec9

Download Submit
memory/1308-23-0x00000000006F0000-0x00000000006F6000-memory.dmp

Filesize
24KB

Download
memory/1308-17-0x0000000002ED0000-0x0000000002ED6000-memory.dmp

Filesize
24KB

Download
memory/2388-0-0x00000000021D0000-0x00000000021D6000-memory.dmp

Filesize
24KB

Download
memory/2388-1-0x00000000021D0000-0x00000000021D6000-memory.dmp

Filesize
24KB

Download
memory/2388-2-0x0000000003150000-0x0000000003156000-memory.dmp

Filesize
24KB

Download