fada77eb3c4f65294018fa1c0e3b13393a1d99f5b5fe152e541f961c8cbd23a6

Analysis

max time kernel
150s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
14/02/2024, 17:47

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General

Target

2024-02-14_f331859cce4bd56fc23897b8b1e95a15_cryptolocker.exe
Size

34KB
MD5

f331859cce4bd56fc23897b8b1e95a15
SHA1

1d08c7ef3735c00b0b7866bbdc259bcb6d84e234
SHA256

fada77eb3c4f65294018fa1c0e3b13393a1d99f5b5fe152e541f961c8cbd23a6
SHA512

136918033c850379ecc40f275829fad6703296e9126b463cf80f9a178fd6a795f5214c16ce7697b81798485eb59c3b084a1ae4164f73a657c2337deb2202ba59
SSDEEP

384:bA74uGLLQRcsdeQ72ngEr4K7YmE8j60nrlwfjDUgIunexRlSrxVh:bA74zYcgT/Ekd0ryfjPIunYwj

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0006000000023218-12.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-1-5-21-996941297-2279405024-2328152752-1000\Control Panel\International\Geo\Nation	2024-02-14_f331859cce4bd56fc23897b8b1e95a15_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1160	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 808 wrote to memory of 1160	808	2024-02-14_f331859cce4bd56fc23897b8b1e95a15_cryptolocker.exe	83
PID 808 wrote to memory of 1160	808	2024-02-14_f331859cce4bd56fc23897b8b1e95a15_cryptolocker.exe	83
PID 808 wrote to memory of 1160	808	2024-02-14_f331859cce4bd56fc23897b8b1e95a15_cryptolocker.exe	83

C:\Users\Admin\AppData\Local\Temp\2024-02-14_f331859cce4bd56fc23897b8b1e95a15_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-14_f331859cce4bd56fc23897b8b1e95a15_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:808
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:1160

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
34KB

MD5
c8567fe154b58bc18960aec091a68d8e

SHA1
0ff493630cab9006cc7dbc5223374b32c0e8a1e1

SHA256
8a4eac334632a5de6e7e8f697f9e4c200c506b56eb27e90502b9c5ebfe3313a5

SHA512
ebf49a5da5b97554181d473466dfbf7b7926e83f3a2b7c849b2f37f96c1a4c61916a8e38d45d441e951301b8fd78b150ada8e29070d4db9c19894a5e27c18958

Download Submit
memory/808-0-0x00000000022C0000-0x00000000022C6000-memory.dmp

Filesize
24KB

Download
memory/808-1-0x00000000022C0000-0x00000000022C6000-memory.dmp

Filesize
24KB

Download
memory/808-2-0x0000000002340000-0x0000000002346000-memory.dmp

Filesize
24KB

Download
memory/1160-17-0x0000000003010000-0x0000000003016000-memory.dmp

Filesize
24KB

Download
memory/1160-20-0x0000000002120000-0x0000000002126000-memory.dmp

Filesize
24KB

Download