02825388dbfe0ea237b7a6fe98a43bcb0cfc0dae0fad5f97a92c572d695dd616

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
30/04/2024, 21:54

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General

Target

2024-04-30_b8a424aeb44e36a3282c28e18d96c0ea_cryptolocker.exe
Size

39KB
MD5

b8a424aeb44e36a3282c28e18d96c0ea
SHA1

7231d527a348d09c2c46136e58fef394339a6a72
SHA256

02825388dbfe0ea237b7a6fe98a43bcb0cfc0dae0fad5f97a92c572d695dd616
SHA512

fe59d9a9ed0f842fff57a865451df114d86a4531572f6fc7f22ff1784aab8c2b61adbd3175f791b6ac6b12eb2f521e7fa5df0c9bcb0dfd91e6e1f1adff348290
SSDEEP

768:V6LsoEEeegiZPvEhHSG+gDYQtOOtEvwDpj/MLam5axZmGK:V6QFElP6n+gMQMOtEvwDpjyaYa/mN

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000014e3d-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000014e3d-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2264	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1284	2024-04-30_b8a424aeb44e36a3282c28e18d96c0ea_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 1284 wrote to memory of 2264	1284	2024-04-30_b8a424aeb44e36a3282c28e18d96c0ea_cryptolocker.exe	28
PID 1284 wrote to memory of 2264	1284	2024-04-30_b8a424aeb44e36a3282c28e18d96c0ea_cryptolocker.exe	28
PID 1284 wrote to memory of 2264	1284	2024-04-30_b8a424aeb44e36a3282c28e18d96c0ea_cryptolocker.exe	28
PID 1284 wrote to memory of 2264	1284	2024-04-30_b8a424aeb44e36a3282c28e18d96c0ea_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-30_b8a424aeb44e36a3282c28e18d96c0ea_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-30_b8a424aeb44e36a3282c28e18d96c0ea_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1284
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2264

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
39KB

MD5
bc804580643eaa98570df89bd462f5c5

SHA1
9f512e56c5aaed4625d2876131276db8cca2c3ce

SHA256
2292bcd66630d46021db12c659bd258d48452e21dd8dfd127c3724b70f0454d2

SHA512
c7badd01d94ef9456c359ecfc08248071c2681b6d70ddab1725951e4fdb8bb18b23923c02973665f4b4c6907b037f39a3cf05c4f99d03f763cc21b13809d4d3b

Download Submit
memory/1284-0-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/1284-1-0x00000000002F0000-0x00000000002F6000-memory.dmp

Filesize
24KB

Download
memory/1284-8-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2264-15-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download
memory/2264-22-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download