600f2ab48b3e1e9f7ac8d565d2638548c4137b574d3caa3ad59abf04fa160c29

Analysis

max time kernel
165s
max time network
170s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
10/03/2024, 23:48

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General

Target

2024-03-10_58fb686521e409a57b61fe114a07b31b_cryptolocker.exe
Size

53KB
MD5

58fb686521e409a57b61fe114a07b31b
SHA1

24da1df198a652e3ab7c07712a0a9018ba40b305
SHA256

600f2ab48b3e1e9f7ac8d565d2638548c4137b574d3caa3ad59abf04fa160c29
SHA512

a288b879deccc36bd58f1754c772cf02b5a9a409ad51c24fc4171a105c62e617d0a04c12e1ee4fad2ead8afff4d54158aac82d083b2dccf8f1e8448d6d8e8e3b
SSDEEP

768:bIDOw9UiaCHfjnE0Sfa7ilR0p9u6p4ICNBCXK9XbTbmhTbR:bIDOw9a0DwitDZzcTM

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000700000002323f-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-1-5-21-3045580317-3728985860-206385570-1000\Control Panel\International\Geo\Nation	2024-03-10_58fb686521e409a57b61fe114a07b31b_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1504	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 804 wrote to memory of 1504	804	2024-03-10_58fb686521e409a57b61fe114a07b31b_cryptolocker.exe	91
PID 804 wrote to memory of 1504	804	2024-03-10_58fb686521e409a57b61fe114a07b31b_cryptolocker.exe	91
PID 804 wrote to memory of 1504	804	2024-03-10_58fb686521e409a57b61fe114a07b31b_cryptolocker.exe	91

C:\Users\Admin\AppData\Local\Temp\2024-03-10_58fb686521e409a57b61fe114a07b31b_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-10_58fb686521e409a57b61fe114a07b31b_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:804
- C:\Users\Admin\AppData\Local\Temp\lossy.exe
  "C:\Users\Admin\AppData\Local\Temp\lossy.exe"
  2⤵
  - Executes dropped EXE
  PID:1504

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
53KB

MD5
104cec8b3e55a7aa0e5b7d2ad3a96ecb

SHA1
25f81569ac7355d0440d91c81ee33919752e0c90

SHA256
f0bc05ff7ba5a99d2f210a4791dbc59b9a12fe34959942b914538f9455a3b104

SHA512
226b56aafa4b99db4010b05e7f6961a78cb28acead9ae1d78c0b969f4e65333898a7eb5ce69e90e835f7b8fb2e69bde8193f6caaf962cb5ed6bb1751884dfaff

Download Submit
memory/804-0-0x0000000000620000-0x0000000000626000-memory.dmp

Filesize
24KB

Download
memory/804-1-0x0000000000620000-0x0000000000626000-memory.dmp

Filesize
24KB

Download
memory/804-2-0x00000000020E0000-0x00000000020E6000-memory.dmp

Filesize
24KB

Download
memory/1504-17-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/1504-21-0x00000000021B0000-0x00000000021B6000-memory.dmp

Filesize
24KB

Download