64f75fe5e267c4991c2d5cbf0c38afbfd7c993f7962ce91af8e847c1329ad440

Analysis

max time kernel
154s
max time network
161s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
26-01-2024 00:43

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General

Target

2024-01-26_1ac9bade3696de677c21217f66f1c720_cryptolocker.exe
Size

32KB
MD5

1ac9bade3696de677c21217f66f1c720
SHA1

2d93187d0bb5f687ed63d56ffe64ec0b967baf9d
SHA256

64f75fe5e267c4991c2d5cbf0c38afbfd7c993f7962ce91af8e847c1329ad440
SHA512

68505b431f461b8e62432572b183e7ab35bd6a8e5994c6f02d8e658cb05a433e02ce5682c0b53c177e24734ee3062f02f8cc1df697e09c3084f694ab5099480a
SSDEEP

384:bA74uGLLQRcsdeQ72ngEr4K7YmE8j60nrlwfjDUr766SJXTQke8SEG3+:bA74zYcgT/Ekd0ryfjQRSNhpSBu

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0009000000022480-12.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-1-5-21-3073191680-435865314-2862784915-1000\Control Panel\International\Geo\Nation	2024-01-26_1ac9bade3696de677c21217f66f1c720_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2564	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 3688 wrote to memory of 2564	3688	2024-01-26_1ac9bade3696de677c21217f66f1c720_cryptolocker.exe	88
PID 3688 wrote to memory of 2564	3688	2024-01-26_1ac9bade3696de677c21217f66f1c720_cryptolocker.exe	88
PID 3688 wrote to memory of 2564	3688	2024-01-26_1ac9bade3696de677c21217f66f1c720_cryptolocker.exe	88

C:\Users\Admin\AppData\Local\Temp\2024-01-26_1ac9bade3696de677c21217f66f1c720_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-26_1ac9bade3696de677c21217f66f1c720_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3688
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:2564

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
5bded3eb0fb21c2449c2168274f099d0

SHA1
27e198f8c5cf2d8935db72ce6b1cd264cb767ed5

SHA256
177f4fd31297876b40bd045d7f68c4c4e8c6c97e51ea160ebb7cdc877310e6e2

SHA512
6bf5cec65db31961e186616702228a6ba7de6f13ba5f0e7ebc2de1a6932bd212943ead2b236e2d913e31393d9c0b8aa567bcae173aea3206e9cb59be2bf8077f

Download Submit
memory/2564-18-0x0000000002D60000-0x0000000002D66000-memory.dmp

Filesize
24KB

Download
memory/2564-17-0x0000000003010000-0x0000000003016000-memory.dmp

Filesize
24KB

Download
memory/3688-0-0x00000000022D0000-0x00000000022D6000-memory.dmp

Filesize
24KB

Download
memory/3688-1-0x00000000022D0000-0x00000000022D6000-memory.dmp

Filesize
24KB

Download
memory/3688-2-0x0000000003150000-0x0000000003156000-memory.dmp

Filesize
24KB

Download