85608c9f2cca9c8dfe49bc047b11f197d1652e41c85ae4bc87f0e78ef7f4e25b

Analysis

max time kernel
149s
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
08/03/2024, 05:34

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-03-08_251bf77b05acfe7d1bb29cce8344ceac_cryptolocker.exe
Size

42KB
MD5

251bf77b05acfe7d1bb29cce8344ceac
SHA1

acca6d6566007efb74c56eb8d3fe4b1505e2cb33
SHA256

85608c9f2cca9c8dfe49bc047b11f197d1652e41c85ae4bc87f0e78ef7f4e25b
SHA512

4636000535fc722f5ce16e5a7fe3f81d4334a191295e2d569d6c8b4b04709afb18a9a4234785c920e7646b3a48faff3a0030b609b0d1660a3cf1b8e07d1309a1
SSDEEP

768:V6LsoEEeegiZPvEhHSG+gDYQtOOtEvwDpj/MLam5aFr7YOzzfQ:V6QFElP6n+gMQMOtEvwDpjyaYaFA9

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000700000001ebc7-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000700000001ebc7-12.dat	CryptoLocker_set1

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-1-5-21-566096764-1992588923-1249862864-1000\Control Panel\International\Geo\Nation	2024-03-08_251bf77b05acfe7d1bb29cce8344ceac_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3236	asih.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 3572 wrote to memory of 3236	3572	2024-03-08_251bf77b05acfe7d1bb29cce8344ceac_cryptolocker.exe	88
PID 3572 wrote to memory of 3236	3572	2024-03-08_251bf77b05acfe7d1bb29cce8344ceac_cryptolocker.exe	88
PID 3572 wrote to memory of 3236	3572	2024-03-08_251bf77b05acfe7d1bb29cce8344ceac_cryptolocker.exe	88

C:\Users\Admin\AppData\Local\Temp\2024-03-08_251bf77b05acfe7d1bb29cce8344ceac_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-08_251bf77b05acfe7d1bb29cce8344ceac_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3572
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:3236

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\asih.exe

Filesize
42KB

MD5
6530b0aa406495a2edfb57a56a93af00

SHA1
d1388de68c11bcc416d9c27ee509f82fcca5c4ce

SHA256
1d031f0a56c3c22fdc0a511ef7f82bdb5d0c6e306da790b9221af0808b77e633

SHA512
92a5e4cc0ac2c66a346301089490d8066b2e058b802f93e73c3c832150e636df771182d991abd1b5392e9e5638e5632a079cf388544dd95feeecc5ba98678eb5

Download Submit
memory/3236-17-0x00000000006B0000-0x00000000006B6000-memory.dmp

Filesize
24KB

Download
memory/3236-19-0x0000000000690000-0x0000000000696000-memory.dmp

Filesize
24KB

Download
memory/3572-0-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download
memory/3572-1-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download
memory/3572-2-0x00000000005C0000-0x00000000005C6000-memory.dmp

Filesize
24KB

Download