a241008377500b208ed168350c4dec2bbf3df7ea9794444e0be5317df0bda95d

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
14/05/2024, 07:24

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General

Target

2024-05-14_0803aec01755680534856ef30e4f0b98_cryptolocker.exe
Size

41KB
MD5

0803aec01755680534856ef30e4f0b98
SHA1

3acbdc3ddb782d951f691106e87cb59bd2755262
SHA256

a241008377500b208ed168350c4dec2bbf3df7ea9794444e0be5317df0bda95d
SHA512

d207aebed6f791952b6c91adf19a35f6e747ae91543ac4b9285a507a8c523360e4d2dc143725327e312429d31aacc897217310c254d2313bba02c36a5fa10b2b
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBaac4HKcfr9Orm:X6QFElP6n+gJQMOtEvwDpjBsYK6r0rm

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000014230-13.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000014230-13.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2972	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2676	2024-05-14_0803aec01755680534856ef30e4f0b98_cryptolocker.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2676 wrote to memory of 2972	2676	2024-05-14_0803aec01755680534856ef30e4f0b98_cryptolocker.exe	28
PID 2676 wrote to memory of 2972	2676	2024-05-14_0803aec01755680534856ef30e4f0b98_cryptolocker.exe	28
PID 2676 wrote to memory of 2972	2676	2024-05-14_0803aec01755680534856ef30e4f0b98_cryptolocker.exe	28
PID 2676 wrote to memory of 2972	2676	2024-05-14_0803aec01755680534856ef30e4f0b98_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-14_0803aec01755680534856ef30e4f0b98_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-14_0803aec01755680534856ef30e4f0b98_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2676
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2972

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

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
41KB

MD5
6c4851dc25334c5a9fa84cda9ebc9c2e

SHA1
2aa6937f8c3c4621849ee5f676879e1a8df3414d

SHA256
37706eb274c4ea3c51af1c408d865b91c710343d89af6334691ce62025116bcd

SHA512
7828be8320192a4e33e494b9e552954651937157370aac3229fda4632d5331548e65882766328c3e058d73ae24b09f3ba1721740242d7872dde5156f67e32020

Download Submit
memory/2676-0-0x0000000000440000-0x0000000000446000-memory.dmp

Filesize
24KB

Download
memory/2676-8-0x0000000000440000-0x0000000000446000-memory.dmp

Filesize
24KB

Download
memory/2676-1-0x0000000000480000-0x0000000000486000-memory.dmp

Filesize
24KB

Download
memory/2972-15-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download
memory/2972-22-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download