3359545fd039eaf8599bef78df200a97f9aec62a420987a2743e5f8224219d0b

Analysis

max time kernel
150s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
18-02-2024 04:44

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General

Target

2024-02-18_6cf038b698d7fccc185fc5f2b5443298_cryptolocker.exe
Size

31KB
MD5

6cf038b698d7fccc185fc5f2b5443298
SHA1

a3989018321c9259561dc86dd3d2ea714bfcc33d
SHA256

3359545fd039eaf8599bef78df200a97f9aec62a420987a2743e5f8224219d0b
SHA512

99d8a8db6a0600ca17836320a6577ce74a8d8a699a4bacfdbabc3e9d0d6805d9b91927ecd5cd9e49cd4293c8dc8179a43e7010b78afa163da4616bb2260fdcf4
SSDEEP

384:bA74uGLLQRcsdeQ72ngEr4K7YmE8j60nrlwfjDUr766SJ/Tl+bltoGozL:bA74zYcgT/Ekd0ryfjQRSlwltEzL

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023206-12.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-1-5-21-3336304223-2978740688-3645194410-1000\Control Panel\International\Geo\Nation	2024-02-18_6cf038b698d7fccc185fc5f2b5443298_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2520	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 1888 wrote to memory of 2520	1888	2024-02-18_6cf038b698d7fccc185fc5f2b5443298_cryptolocker.exe	83
PID 1888 wrote to memory of 2520	1888	2024-02-18_6cf038b698d7fccc185fc5f2b5443298_cryptolocker.exe	83
PID 1888 wrote to memory of 2520	1888	2024-02-18_6cf038b698d7fccc185fc5f2b5443298_cryptolocker.exe	83

C:\Users\Admin\AppData\Local\Temp\2024-02-18_6cf038b698d7fccc185fc5f2b5443298_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-18_6cf038b698d7fccc185fc5f2b5443298_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1888
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:2520

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
32KB

MD5
7e6fc54569f97ecbdf8983981c955469

SHA1
c0846be1a28ffc7e128251ea5f753243c44b2af3

SHA256
64a0b62df8f2b86697e2eb2bc8ba1a5109366b822266d91f73af7965e292cf2a

SHA512
8a2b941954aa2c1cc6e8abff2530d3e5d8b7d6d3b525d61a2f7426a8ef9d45b3dd8d1195b49d3ed633291ef24ab7de2f59210fc94a1ca89f7421c2e0a6157791

Download Submit
memory/1888-0-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/1888-1-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/1888-2-0x0000000003150000-0x0000000003156000-memory.dmp

Filesize
24KB

Download
memory/2520-17-0x0000000002380000-0x0000000002386000-memory.dmp

Filesize
24KB

Download
memory/2520-18-0x0000000002210000-0x0000000002216000-memory.dmp

Filesize
24KB

Download