3a70243c78d082effaeb60353fcd714156237bc4a07962c74a88ea07e36da2d8

Analysis

max time kernel
150s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
14/03/2024, 08:48

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General

Target

2024-03-14_d7911ae23a46363adc9eedd572e72a9a_cryptolocker.exe
Size

54KB
MD5

d7911ae23a46363adc9eedd572e72a9a
SHA1

eb9342bcc0fb4fe09f023ae1ed44850581a8b185
SHA256

3a70243c78d082effaeb60353fcd714156237bc4a07962c74a88ea07e36da2d8
SHA512

b23dfde65e9fd75b05007d63fb2a94c656040c170f50f725ef0cb4d7a4e077c052407669fbeae2d9bb12a1023e35a90a2a4736370445f55f8a8101a52ccfc800
SSDEEP

768:bIDOw9UiaCHfjnE0Sfa7ilR0p9u6p4ICNBCXK9XbTbmhTymG:bIDOw9a0DwitDZzcT2G

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000700000001ebc7-12.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-1-5-21-566096764-1992588923-1249862864-1000\Control Panel\International\Geo\Nation	2024-03-14_d7911ae23a46363adc9eedd572e72a9a_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4376	lossy.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 212 wrote to memory of 4376	212	2024-03-14_d7911ae23a46363adc9eedd572e72a9a_cryptolocker.exe	89
PID 212 wrote to memory of 4376	212	2024-03-14_d7911ae23a46363adc9eedd572e72a9a_cryptolocker.exe	89
PID 212 wrote to memory of 4376	212	2024-03-14_d7911ae23a46363adc9eedd572e72a9a_cryptolocker.exe	89

C:\Users\Admin\AppData\Local\Temp\2024-03-14_d7911ae23a46363adc9eedd572e72a9a_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-14_d7911ae23a46363adc9eedd572e72a9a_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:212
- C:\Users\Admin\AppData\Local\Temp\lossy.exe
  "C:\Users\Admin\AppData\Local\Temp\lossy.exe"
  2⤵
  - Executes dropped EXE
  PID:4376

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\lossy.exe

Filesize
54KB

MD5
641d814c71a90bbb47d2797159bf1b07

SHA1
5a5d73b88b72bfcf5525b990ac6b2e7b82522ba2

SHA256
fb5b9960f6a219f01f45dc46201f67ee3f6a454a1520c6f6faae7b9d85292a3b

SHA512
39678dbec365d275e4533736aec0d228bd79fd085dc128f389cf6ae63a9f27ec3b444d201d12e62b8de573b8a984b0b84ef3a7479664eb632e0191983b97139f

Download Submit
memory/212-0-0x00000000021B0000-0x00000000021B6000-memory.dmp

Filesize
24KB

Download
memory/212-1-0x00000000021B0000-0x00000000021B6000-memory.dmp

Filesize
24KB

Download
memory/212-2-0x0000000002040000-0x0000000002046000-memory.dmp

Filesize
24KB

Download
memory/4376-18-0x0000000000590000-0x0000000000596000-memory.dmp

Filesize
24KB

Download
memory/4376-17-0x00000000006C0000-0x00000000006C6000-memory.dmp

Filesize
24KB

Download