192e966ed9a7ee75a0c907bdb226d78436516d9768eed631ee2f15a51372255e

Analysis

max time kernel
150s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
23/05/2024, 21:26

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General

Target

2024-05-23_1ead185e1c0b1e9a65cbeb09d095851e_cryptolocker.exe
Size

33KB
MD5

1ead185e1c0b1e9a65cbeb09d095851e
SHA1

bc3173c2af14c7269b40999b904536dd9ef36612
SHA256

192e966ed9a7ee75a0c907bdb226d78436516d9768eed631ee2f15a51372255e
SHA512

3a4c675eecd938fd73c2e0defc0de60a87cd41cee7e0ef71bfc56f56a22e236d002b6f6e74ac708600fdf7f0f58ba884e82da51283ee2438c9671b6ab664dd33
SSDEEP

384:bG74uGLLQRcsdeQ72ngEr4K7YmE8j60nrlwfjDUGTGXvxwM:bG74zYcgT/Ekd0ryfjkmM

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral2/memory/2868-0-0x0000000008000000-0x000000000800A000-memory.dmp	CryptoLocker_rule2
behavioral2/files/0x000a0000000233ea-13.dat	CryptoLocker_rule2
behavioral2/memory/2868-17-0x0000000008000000-0x000000000800A000-memory.dmp	CryptoLocker_rule2
behavioral2/memory/1112-26-0x0000000008000000-0x000000000800A000-memory.dmp	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-1-5-21-1337824034-2731376981-3755436523-1000\Control Panel\International\Geo\Nation	2024-05-23_1ead185e1c0b1e9a65cbeb09d095851e_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1112	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 2868 wrote to memory of 1112	2868	2024-05-23_1ead185e1c0b1e9a65cbeb09d095851e_cryptolocker.exe	83
PID 2868 wrote to memory of 1112	2868	2024-05-23_1ead185e1c0b1e9a65cbeb09d095851e_cryptolocker.exe	83
PID 2868 wrote to memory of 1112	2868	2024-05-23_1ead185e1c0b1e9a65cbeb09d095851e_cryptolocker.exe	83

C:\Users\Admin\AppData\Local\Temp\2024-05-23_1ead185e1c0b1e9a65cbeb09d095851e_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-23_1ead185e1c0b1e9a65cbeb09d095851e_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2868
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:1112

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
9616019c13c6cd64bf2538c5dc03f6ef

SHA1
8173b26fb7f559bccaaa2bc971c20ce85b2c6cc5

SHA256
fc05936b1ff6a249c573d8223e9619769b6f8765457f2b57e35347624e68ef4b

SHA512
4430e79c33646bf747bd03a10bc7b96d4641a3c46e8a5496f6f2ef71c64d69fce768e265f848c14ff07e45baac003c9647cac4c8de58dcd64541aadc6d2aeb1c

Download Submit
memory/1112-19-0x0000000003010000-0x0000000003016000-memory.dmp

Filesize
24KB

Download
memory/1112-25-0x0000000002210000-0x0000000002216000-memory.dmp

Filesize
24KB

Download
memory/1112-26-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download
memory/2868-0-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download
memory/2868-1-0x00000000020E0000-0x00000000020E6000-memory.dmp

Filesize
24KB

Download
memory/2868-2-0x0000000002110000-0x0000000002116000-memory.dmp

Filesize
24KB

Download
memory/2868-9-0x00000000020E0000-0x00000000020E6000-memory.dmp

Filesize
24KB

Download
memory/2868-17-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download