5a2e9e3aef2af5a8a892b1c98befedac1a8a646c8c97c79dec30036f12e0f7aa

Analysis

max time kernel
148s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240221-en
resource tags

arch:x64arch:x86image:win10v2004-20240221-enlocale:en-usos:windows10-2004-x64system
submitted
22/02/2024, 12:42

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General

Target

2024-02-22_685fccec0569fddbd99bb31e06286edc_cryptolocker.exe
Size

33KB
MD5

685fccec0569fddbd99bb31e06286edc
SHA1

7ce8971075a00578ec32d8c6ce7000c9bfcf32db
SHA256

5a2e9e3aef2af5a8a892b1c98befedac1a8a646c8c97c79dec30036f12e0f7aa
SHA512

6dd62cd805b2b680b7b3b907af1bdde94f83a6fffb15ca06c1d066b1fb2a0fd1200f8a87da993ee4e0497cef1115be31ee2d9a546eb72ee37508b2a043159574
SSDEEP

768:fTz7y3lhsT+hs1SQtOOtEvwDpjfAu9+4t:fT+hsMQMOtEvwDpjoIHt

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x00070000000231f3-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x00070000000231f3-12.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-1-5-21-1712835645-2080934712-2142796781-1000\Control Panel\International\Geo\Nation	2024-02-22_685fccec0569fddbd99bb31e06286edc_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3960	misid.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 948 wrote to memory of 3960	948	2024-02-22_685fccec0569fddbd99bb31e06286edc_cryptolocker.exe	86
PID 948 wrote to memory of 3960	948	2024-02-22_685fccec0569fddbd99bb31e06286edc_cryptolocker.exe	86
PID 948 wrote to memory of 3960	948	2024-02-22_685fccec0569fddbd99bb31e06286edc_cryptolocker.exe	86

C:\Users\Admin\AppData\Local\Temp\2024-02-22_685fccec0569fddbd99bb31e06286edc_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-22_685fccec0569fddbd99bb31e06286edc_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:948
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:3960

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\misid.exe

Filesize
33KB

MD5
5e3de30887c8cc5a9bca5e2ecf9af861

SHA1
428ce5d809737d62232023535b06ee0a6ec733b4

SHA256
bb4241815ae0e973a7e9a9041b4b9bfa7ac1b742159ec13542de1406448be523

SHA512
b3f3359924e7521179f2db679a19313aa45f71f40a52a7ebe70d496d1169164289bf50c73f0f5fa180ffe9d774202d8e22952119f145b778ca3b3b16674fc1a3

Download Submit
memory/948-0-0x0000000000690000-0x0000000000696000-memory.dmp

Filesize
24KB

Download
memory/948-2-0x0000000000700000-0x0000000000706000-memory.dmp

Filesize
24KB

Download
memory/948-1-0x0000000000690000-0x0000000000696000-memory.dmp

Filesize
24KB

Download
memory/3960-17-0x0000000001FE0000-0x0000000001FE6000-memory.dmp

Filesize
24KB

Download
memory/3960-23-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download