b23f8f4ce6712274e8b6200a35b112d02a867c0819a94ee3feaa736475f6fc11

Analysis

max time kernel
149s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20240412-en
resource tags

arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
submitted
17/04/2024, 03:39

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General

Target

2024-04-17_4bb5eec13b3cc707961f391b3af60be9_cryptolocker.exe
Size

388KB
MD5

4bb5eec13b3cc707961f391b3af60be9
SHA1

d25785479cee9da95cc0d65ccbbcf262651dbe58
SHA256

b23f8f4ce6712274e8b6200a35b112d02a867c0819a94ee3feaa736475f6fc11
SHA512

28142373e2aa466432bc1c6365e9ece1bbfb0b157d2957dd3678737b01da74ad61d38503d8afaa3a468ed666e586e03e3998143ebfdf0161afb211163ec5e8e6
SSDEEP

6144:nnOsaQgAOjvrZFODJjBz3j1jTqQy6v2GGnugOtihzXU:nnOflT/ZFIjBz3xjTxynGUOUhXU

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000d00000002338c-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-1-5-21-2288054676-1871194608-3559553667-1000\Control Panel\International\Geo\Nation	2024-04-17_4bb5eec13b3cc707961f391b3af60be9_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4472	hasfj.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 3436 wrote to memory of 4472	3436	2024-04-17_4bb5eec13b3cc707961f391b3af60be9_cryptolocker.exe	86
PID 3436 wrote to memory of 4472	3436	2024-04-17_4bb5eec13b3cc707961f391b3af60be9_cryptolocker.exe	86
PID 3436 wrote to memory of 4472	3436	2024-04-17_4bb5eec13b3cc707961f391b3af60be9_cryptolocker.exe	86

C:\Users\Admin\AppData\Local\Temp\2024-04-17_4bb5eec13b3cc707961f391b3af60be9_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-17_4bb5eec13b3cc707961f391b3af60be9_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3436
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:4472

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\hasfj.exe

Filesize
388KB

MD5
2ff3b67b8918244f60d2968b2965285d

SHA1
2d00e0941e35b97a7772da13f96b5ef1448f61aa

SHA256
b75420043e48843464e4052e0990a0fdc34fb7b89f174db2288d3f3a460d95bd

SHA512
c708a14e54204a14060819a14427040e9fb447a790d061f10de62922e96d50ea3527b81848eb9fbdd9ee3f0db29d93264dcebf38ab7f0fbe1c48d902a06aed45

Download Submit
memory/3436-0-0x0000000002210000-0x0000000002216000-memory.dmp

Filesize
24KB

Download
memory/3436-1-0x0000000002210000-0x0000000002216000-memory.dmp

Filesize
24KB

Download
memory/3436-2-0x0000000003010000-0x0000000003016000-memory.dmp

Filesize
24KB

Download
memory/4472-17-0x00000000020D0000-0x00000000020D6000-memory.dmp

Filesize
24KB

Download
memory/4472-19-0x0000000000780000-0x0000000000786000-memory.dmp

Filesize
24KB

Download