37137a2faee1f8f5d4c629a5330c39b510c85b491bbe0ea3e0886830478cab0d

Analysis

max time kernel
150s
max time network
146s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
27/05/2024, 08:22

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General

Target

2024-05-27_1fdba248282b8cf01b411a315ef52f7b_cryptolocker.exe
Size

56KB
MD5

1fdba248282b8cf01b411a315ef52f7b
SHA1

5003e4b952b2397880db053b16882021950b7e23
SHA256

37137a2faee1f8f5d4c629a5330c39b510c85b491bbe0ea3e0886830478cab0d
SHA512

efe4f92f0f9bc0613b2ac255d30dab7248cb74d046bfb6d8c70cb346e0e31bf2ef274a2a4cdd34136f5a5ef8c2329fbed63b92262a6205478ce42d97bcec64fa
SSDEEP

768:bIDOw9UiaCHfjnE0Sfa7ilR0p9u6p4ICNBCXK9XbTb8puI4:bIDOw9a0DwitDZzcTLI4

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000700000002328e-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-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation	2024-05-27_1fdba248282b8cf01b411a315ef52f7b_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3312	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 1416 wrote to memory of 3312	1416	2024-05-27_1fdba248282b8cf01b411a315ef52f7b_cryptolocker.exe	83
PID 1416 wrote to memory of 3312	1416	2024-05-27_1fdba248282b8cf01b411a315ef52f7b_cryptolocker.exe	83
PID 1416 wrote to memory of 3312	1416	2024-05-27_1fdba248282b8cf01b411a315ef52f7b_cryptolocker.exe	83

C:\Users\Admin\AppData\Local\Temp\2024-05-27_1fdba248282b8cf01b411a315ef52f7b_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-27_1fdba248282b8cf01b411a315ef52f7b_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1416
- C:\Users\Admin\AppData\Local\Temp\lossy.exe
  "C:\Users\Admin\AppData\Local\Temp\lossy.exe"
  2⤵
  - Executes dropped EXE
  PID:3312

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
56KB

MD5
d1a72e67d477a644d9d10aed8664ad61

SHA1
f14d0725f8010c5a81a2aaa73afc5808de121469

SHA256
ad281492ff7b19d8320eccc278a133b39bda9efbbd6abcb55420c5cca6f6ffd8

SHA512
7f32057d0f7ecb8bfe76c8b751cad096242d55a75d31a9563373504efa82fc8c0a12733015a3b7dc0dc0c57a0ba2d823a71a3745cad6a57096849049de7f5efc

Download Submit
memory/1416-0-0x00000000020C0000-0x00000000020C6000-memory.dmp

Filesize
24KB

Download
memory/1416-1-0x00000000020E0000-0x00000000020E6000-memory.dmp

Filesize
24KB

Download
memory/1416-8-0x00000000020C0000-0x00000000020C6000-memory.dmp

Filesize
24KB

Download
memory/3312-17-0x0000000002060000-0x0000000002066000-memory.dmp

Filesize
24KB

Download
memory/3312-23-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download