4dd304e23bd4138162c154c951737652b6d89a6fb6377ece151d598b38be8bc9

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
05-04-2024 06:38

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-04-05_be95890987b379e4f612dc8d7e6eb01f_cryptolocker.exe
Size

54KB
MD5

be95890987b379e4f612dc8d7e6eb01f
SHA1

3bc98255c86471163c5d200527d236d04b3f633b
SHA256

4dd304e23bd4138162c154c951737652b6d89a6fb6377ece151d598b38be8bc9
SHA512

f9beefbb3893121543ad4a0cbecb4e721b5f1ce81a29d4d2f3018015dc355b17f35faf738c92ca2a7fc71764d20af437bced788429314990ac145ee0bb0f6f85
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/BtOOtEvwDpjBVaD3E09vaTiSfQaV2Lq:X6QFElP6n+gJBMOtEvwDpjBtE1yILq

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000a000000012254-13.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000a000000012254-13.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2504	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2232	2024-04-05_be95890987b379e4f612dc8d7e6eb01f_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 2232 wrote to memory of 2504	2232	2024-04-05_be95890987b379e4f612dc8d7e6eb01f_cryptolocker.exe	28
PID 2232 wrote to memory of 2504	2232	2024-04-05_be95890987b379e4f612dc8d7e6eb01f_cryptolocker.exe	28
PID 2232 wrote to memory of 2504	2232	2024-04-05_be95890987b379e4f612dc8d7e6eb01f_cryptolocker.exe	28
PID 2232 wrote to memory of 2504	2232	2024-04-05_be95890987b379e4f612dc8d7e6eb01f_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-05_be95890987b379e4f612dc8d7e6eb01f_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-05_be95890987b379e4f612dc8d7e6eb01f_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2232
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2504

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

Loading Replay Monitor...

Downloads

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

Filesize
54KB

MD5
b027450422f007ad676abedfb4207aa4

SHA1
221e1ea858484495d6cbd6f8bde1f94b3dedf9e4

SHA256
f00b5d0214dd265572005c193e2d5f68de3abd553778ae48dffda4b5bc71152d

SHA512
c1a6ea52f0e6bc5c59a86a54a6f749cd241784355cfc1f3ba943f2f8fc20b420a6430cd38c33ef2b357d1941eda6d7429c2950b2e87a212b22912d0d1f09a6ce

Download Submit
memory/2232-0-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2232-1-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2232-3-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2504-15-0x0000000000450000-0x0000000000456000-memory.dmp

Filesize
24KB

Download
memory/2504-17-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download