fbc7643e709efebc2f4fabb99a32988133ed5aa825b8dbca8cfc48de9ada1d9e

Analysis

max time kernel
147s
max time network
148s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
10/05/2024, 21:27

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General

Target

2024-05-10_43bfda68ab0174d568409b61a67dac43_cryptolocker.exe
Size

38KB
MD5

43bfda68ab0174d568409b61a67dac43
SHA1

c8be2aebae5b298d942eaaf96c017cff64fa2248
SHA256

fbc7643e709efebc2f4fabb99a32988133ed5aa825b8dbca8cfc48de9ada1d9e
SHA512

535054c05673db124379c8d5993d93064b4c1d9113393b16e9cc69f5130dc0ef4a6c751aaa203f3ee57887c91b8ef6fa248c4409a3ed5e1268bde0edb939f605
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBjb1iIJSFlWvmv354ZD:X6QFElP6n+gJQMOtEvwDpjBngHnZ3GZD

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b00000001267a-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000b00000001267a-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2380	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2856	2024-05-10_43bfda68ab0174d568409b61a67dac43_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 2856 wrote to memory of 2380	2856	2024-05-10_43bfda68ab0174d568409b61a67dac43_cryptolocker.exe	28
PID 2856 wrote to memory of 2380	2856	2024-05-10_43bfda68ab0174d568409b61a67dac43_cryptolocker.exe	28
PID 2856 wrote to memory of 2380	2856	2024-05-10_43bfda68ab0174d568409b61a67dac43_cryptolocker.exe	28
PID 2856 wrote to memory of 2380	2856	2024-05-10_43bfda68ab0174d568409b61a67dac43_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-10_43bfda68ab0174d568409b61a67dac43_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-10_43bfda68ab0174d568409b61a67dac43_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2856
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2380

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

\Users\Admin\AppData\Local\Temp\asih.exe

Filesize
38KB

MD5
6caca5b40d82d13acf75e9d5fb03d3d7

SHA1
b0769f986905349e93c0a363e51fb96b962de38e

SHA256
a38a774338a93d2cc61ffc2edbbc41a496ce923e1c1e696b136d72f02604ab5c

SHA512
91a21dd6b39f874b65094b9d2ec776345d6ae73c1ea9b19aa1fbe22fffd07dac04bfdd801e6e51fd55c68bd2a2a09e060e95c5e9ecb7547776e7246b51f46604

Download Submit
memory/2380-15-0x0000000000390000-0x0000000000396000-memory.dmp

Filesize
24KB

Download
memory/2856-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2856-1-0x0000000000340000-0x0000000000346000-memory.dmp

Filesize
24KB

Download
memory/2856-8-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download