cf112ed70ed15e128e8dabf12804625ee25201ed631f202a26001fb497bfca86

Analysis

max time kernel
148s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
17/02/2024, 19:47

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General

Target

2024-02-17_f30153c12da50e8a944d68897d22c9ff_cryptolocker.exe
Size

36KB
MD5

f30153c12da50e8a944d68897d22c9ff
SHA1

ff9c4dd8125266b5a628125438098465dd57d5fe
SHA256

cf112ed70ed15e128e8dabf12804625ee25201ed631f202a26001fb497bfca86
SHA512

13d3d0b163a0f6626c7414229fc5abe98e30e6e640146d110bb09bc41dafbde719e7b45c4842680c2c03f89f805f926379464a017c561786d11a9b401fbe0af3
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBjb1iIJSFlWvmY:X6QFElP6n+gJQMOtEvwDpjBngHna

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000c00000002314f-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000c00000002314f-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-1-5-21-1497073144-2389943819-3385106915-1000\Control Panel\International\Geo\Nation	2024-02-17_f30153c12da50e8a944d68897d22c9ff_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2804	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 1616 wrote to memory of 2804	1616	2024-02-17_f30153c12da50e8a944d68897d22c9ff_cryptolocker.exe	85
PID 1616 wrote to memory of 2804	1616	2024-02-17_f30153c12da50e8a944d68897d22c9ff_cryptolocker.exe	85
PID 1616 wrote to memory of 2804	1616	2024-02-17_f30153c12da50e8a944d68897d22c9ff_cryptolocker.exe	85

C:\Users\Admin\AppData\Local\Temp\2024-02-17_f30153c12da50e8a944d68897d22c9ff_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-17_f30153c12da50e8a944d68897d22c9ff_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1616
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2804

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\asih.exe

Filesize
36KB

MD5
d39d4aee24e1764245b98f0b55b7cc36

SHA1
7e988bcde692887184aca51ea0553896dac97793

SHA256
a8ef8a2d33ee12b9702134f09d72438298028a8236cea7f0cd2c90346ffeda8b

SHA512
e62234b41d68254fce849c5e95b68712c96256c28812aad98124997209bdc09065ed0576fba815cd21405e4ffdcac2d8c9591a8144a4a10d27dad730193da7f0

Download Submit
memory/1616-0-0x00000000005E0000-0x00000000005E6000-memory.dmp

Filesize
24KB

Download
memory/1616-1-0x00000000005E0000-0x00000000005E6000-memory.dmp

Filesize
24KB

Download
memory/1616-2-0x0000000000600000-0x0000000000606000-memory.dmp

Filesize
24KB

Download
memory/2804-17-0x00000000005D0000-0x00000000005D6000-memory.dmp

Filesize
24KB

Download
memory/2804-19-0x00000000005B0000-0x00000000005B6000-memory.dmp

Filesize
24KB

Download