1ba54154c20657d3a4f84fbf58ec268c9213e5ba8569db53392dd18bb539c2b3

Analysis

max time kernel
149s
max time network
153s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
26/03/2024, 19:45

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General

Target

2024-03-26_b54849c8b5371a97e60524eaf13874f8_cryptolocker.exe
Size

49KB
MD5

b54849c8b5371a97e60524eaf13874f8
SHA1

992147a0625afc8b754cafaaa0603850e4abbd43
SHA256

1ba54154c20657d3a4f84fbf58ec268c9213e5ba8569db53392dd18bb539c2b3
SHA512

19567909a3af605a74ca6ff1ea7e3a9c4fc984a04151f7bcc2accd7c9f99597fa8b50f5bd4e0c5ca59d7112c52c81ebfc4e92190f56024571f25c29c0a05e1de
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBaaEqbIu55id3AMWZpl:X6QFElP6n+gJQMOtEvwDpjB0GIWiWLnl

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000d00000001224c-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000d00000001224c-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2648	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2884	2024-03-26_b54849c8b5371a97e60524eaf13874f8_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 2884 wrote to memory of 2648	2884	2024-03-26_b54849c8b5371a97e60524eaf13874f8_cryptolocker.exe	28
PID 2884 wrote to memory of 2648	2884	2024-03-26_b54849c8b5371a97e60524eaf13874f8_cryptolocker.exe	28
PID 2884 wrote to memory of 2648	2884	2024-03-26_b54849c8b5371a97e60524eaf13874f8_cryptolocker.exe	28
PID 2884 wrote to memory of 2648	2884	2024-03-26_b54849c8b5371a97e60524eaf13874f8_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-26_b54849c8b5371a97e60524eaf13874f8_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-26_b54849c8b5371a97e60524eaf13874f8_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2884
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2648

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
50KB

MD5
969560a7e68708d3e3c56491a628b6c5

SHA1
b8ee5c48be4f096df6846e61fd17c568f3a39845

SHA256
f92d8fe27fb6679feb127c323e7bc33bd511d3bcee7e74739d932db5924e84bb

SHA512
9a13f83b8e77275c50b8f04354e24724511c1be6f60d37cf6f03f136e703366e2a99fcf225ceb3a28264484e97aee6e2ebf056b74774045b252f7098e317b022

Download Submit
memory/2648-15-0x0000000000380000-0x0000000000386000-memory.dmp

Filesize
24KB

Download
memory/2648-16-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2884-0-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2884-1-0x00000000002F0000-0x00000000002F6000-memory.dmp

Filesize
24KB

Download
memory/2884-8-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download