956ef5a5697f03c577a1dfd2e2ddcfd0cbd01dc7b9b136cab567a686a655ce13

Analysis

max time kernel
150s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
09/03/2024, 00:28

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General

Target

2024-03-09_2780fa1991fe495c7a7de6a8304076ac_cryptolocker.exe
Size

36KB
MD5

2780fa1991fe495c7a7de6a8304076ac
SHA1

41073d70c83671bea6ae96eba54d647682617c8b
SHA256

956ef5a5697f03c577a1dfd2e2ddcfd0cbd01dc7b9b136cab567a686a655ce13
SHA512

5c52d3e8f0efcd74bcd413953a69364d8d04f14b8c402ce8aab08a34f8339f67e57ec87e5bc75b3eb7784f2d91c3592d08cb02e80e8ba9e13900e48b9e3794e7
SSDEEP

384:bA74uGLLQRcsdeQ72ngEr4K7YmE8j60nrlwfjDUgIunIVpeNs23mAA6lqTIU:bA74zYcgT/Ekd0ryfjPIunqpeNswmxT5

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023235-12.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-1-5-21-983155329-280873152-1838004294-1000\Control Panel\International\Geo\Nation	2024-03-09_2780fa1991fe495c7a7de6a8304076ac_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3412	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 4352 wrote to memory of 3412	4352	2024-03-09_2780fa1991fe495c7a7de6a8304076ac_cryptolocker.exe	91
PID 4352 wrote to memory of 3412	4352	2024-03-09_2780fa1991fe495c7a7de6a8304076ac_cryptolocker.exe	91
PID 4352 wrote to memory of 3412	4352	2024-03-09_2780fa1991fe495c7a7de6a8304076ac_cryptolocker.exe	91

C:\Users\Admin\AppData\Local\Temp\2024-03-09_2780fa1991fe495c7a7de6a8304076ac_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-09_2780fa1991fe495c7a7de6a8304076ac_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4352
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:3412

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
37KB

MD5
f37eb92bac615729091cac64a43b2778

SHA1
f840ecfadee0afebc3793a2d2e4d3e51adfaa59e

SHA256
1a7c0215de92fafe3d27abea7934c0f1c5d9303a19a56a4b48b865f31bb22ca7

SHA512
2054d9451fec85ddf9167f639b1041eaa980af7400c58d45de7541800f315fb1cf20ee5c4284d9bc8adf17ad51f9ee891ec84a7699a2616566321a01c5447aea

Download Submit
memory/3412-23-0x0000000000780000-0x0000000000786000-memory.dmp

Filesize
24KB

Download
memory/4352-0-0x0000000002D60000-0x0000000002D66000-memory.dmp

Filesize
24KB

Download
memory/4352-1-0x0000000002D60000-0x0000000002D66000-memory.dmp

Filesize
24KB

Download
memory/4352-2-0x0000000003010000-0x0000000003016000-memory.dmp

Filesize
24KB

Download