8fb8191fd47f039f7081d382ea573f8681fbef68bd7b9f031a0c365ba4a11e0c

Analysis

max time kernel
149s
max time network
152s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
29-02-2024 04:42

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General

Target

2024-02-29_36a1d6502285049335fe209148766fb1_cryptolocker.exe
Size

49KB
MD5

36a1d6502285049335fe209148766fb1
SHA1

ea0adc7a3607c4eec221b0699507eca3527eb23a
SHA256

8fb8191fd47f039f7081d382ea573f8681fbef68bd7b9f031a0c365ba4a11e0c
SHA512

c42037e79126405a548d96a84e762430b565659a23517ed274efb1b532f711f6d8bb32a98e579b5148bd35430dcbdb579de5127add3412c1e50c3c323265fb48
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/BtOOtEvwDpjBVaD3E09vxsDZ:X6QFElP6n+gJBMOtEvwDpjBtExsDZ

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000800000001227d-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000800000001227d-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2988	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1404	2024-02-29_36a1d6502285049335fe209148766fb1_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 1404 wrote to memory of 2988	1404	2024-02-29_36a1d6502285049335fe209148766fb1_cryptolocker.exe	28
PID 1404 wrote to memory of 2988	1404	2024-02-29_36a1d6502285049335fe209148766fb1_cryptolocker.exe	28
PID 1404 wrote to memory of 2988	1404	2024-02-29_36a1d6502285049335fe209148766fb1_cryptolocker.exe	28
PID 1404 wrote to memory of 2988	1404	2024-02-29_36a1d6502285049335fe209148766fb1_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-29_36a1d6502285049335fe209148766fb1_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-29_36a1d6502285049335fe209148766fb1_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1404
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2988

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
49KB

MD5
05d9778431df54fb405a305911386b54

SHA1
f3b102fa20b98a86a6c2694cfd270317ef4a1532

SHA256
b537177e4f68d81568d9d95298d2713fe3dd8bcd3002cccfb61f46d778ec4553

SHA512
667371a044c04803604fe928ac2fe7c859d1091c61ecfa6352424ff40b9050c1482b10ace7f796784cf73c51637bc5b5c33925977c4c4214fec9073f3c52e513

Download Submit
memory/1404-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1404-1-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/1404-6-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2988-15-0x0000000000480000-0x0000000000486000-memory.dmp

Filesize
24KB

Download
memory/2988-17-0x0000000000250000-0x0000000000256000-memory.dmp

Filesize
24KB

Download