40bdc7b88c64758cea6a0c1b2b00d24d95acb259f64e0c3ca3c525d82def063d

Analysis

max time kernel
152s
max time network
157s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
12-03-2024 21:33

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General

Target

2024-03-12_7ceb21fde37950624a2d281ef1066945_cryptolocker.exe
Size

33KB
MD5

7ceb21fde37950624a2d281ef1066945
SHA1

8fb85a9885f787e4cbe2e49b04a0d7181e86a8a4
SHA256

40bdc7b88c64758cea6a0c1b2b00d24d95acb259f64e0c3ca3c525d82def063d
SHA512

ed8ba115523afeb9bca0f1bf02313c6e39cd9072f8df4da2cfa5722097f610a51828082d77f0c96a88ac5614a47af28b5673d007118f6e47a95b62a17157049c
SSDEEP

384:bA74uGLLQRcsdeQ72ngEr4K7YmE8j60nrlwfjDUgIunexRlz5Kg1Gwx5W:bA74zYcgT/Ekd0ryfjPIunYHK2W

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0008000000023274-12.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-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation	2024-03-12_7ceb21fde37950624a2d281ef1066945_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4596	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 1948 wrote to memory of 4596	1948	2024-03-12_7ceb21fde37950624a2d281ef1066945_cryptolocker.exe	101
PID 1948 wrote to memory of 4596	1948	2024-03-12_7ceb21fde37950624a2d281ef1066945_cryptolocker.exe	101
PID 1948 wrote to memory of 4596	1948	2024-03-12_7ceb21fde37950624a2d281ef1066945_cryptolocker.exe	101

C:\Users\Admin\AppData\Local\Temp\2024-03-12_7ceb21fde37950624a2d281ef1066945_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-12_7ceb21fde37950624a2d281ef1066945_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1948
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:4596

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=3912 --field-trial-handle=2248,i,10247514684337323751,15511974759131734137,262144 --variations-seed-version /prefetch:8
1⤵
PID:2216

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
33KB

MD5
20b5df491ec450a776613aec05bc6143

SHA1
a361c86d1038ed818cdb27ad218dc5c373de37fb

SHA256
6c215f751f4c6de8b281e9c9d06a6985cfbe87e3efd0ba51c49f36a9cc10884c

SHA512
1a25d7634bb9847fae072fc297b9b00eebebef9e2e85e410bda6a4b36ce9cd7cbc20606a3b3760cbb0406d708ac9c988487897c48d52d37c4ee941792a333cfd

Download Submit
memory/1948-0-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/1948-1-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/1948-2-0x0000000003150000-0x0000000003156000-memory.dmp

Filesize
24KB

Download
memory/4596-17-0x0000000003010000-0x0000000003016000-memory.dmp

Filesize
24KB

Download
memory/4596-19-0x00000000020A0000-0x00000000020A6000-memory.dmp

Filesize
24KB

Download