116252f981f1c3f25f39ef9c2225017dc1920ef95b45143915eca06fe6424c69

Analysis

max time kernel
149s
max time network
154s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
04-06-2024 21:30

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General

Target

2024-06-04_4e4486194b6178f8e0ff89a1ee070e69_cryptolocker.exe
Size

50KB
MD5

4e4486194b6178f8e0ff89a1ee070e69
SHA1

fe762551de8a2dfb346157803c9ff0a3c16c2dc3
SHA256

116252f981f1c3f25f39ef9c2225017dc1920ef95b45143915eca06fe6424c69
SHA512

b0b9c4ec9930e2fa7e96e9077441ecbdaf3dd7b268dc889a8ba258de0569018ea8f2cb380c521eacdffdf66a3b8bcc879e38f0144c4bfe5576b3e9939bb407e8
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/BtOOtEvwDpjBVaD3E09vdXfb:X6QFElP6n+gJBMOtEvwDpjBtEdXfb

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000014aec-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000014aec-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2212	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1300	2024-06-04_4e4486194b6178f8e0ff89a1ee070e69_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 1300 wrote to memory of 2212	1300	2024-06-04_4e4486194b6178f8e0ff89a1ee070e69_cryptolocker.exe	28
PID 1300 wrote to memory of 2212	1300	2024-06-04_4e4486194b6178f8e0ff89a1ee070e69_cryptolocker.exe	28
PID 1300 wrote to memory of 2212	1300	2024-06-04_4e4486194b6178f8e0ff89a1ee070e69_cryptolocker.exe	28
PID 1300 wrote to memory of 2212	1300	2024-06-04_4e4486194b6178f8e0ff89a1ee070e69_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-06-04_4e4486194b6178f8e0ff89a1ee070e69_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-04_4e4486194b6178f8e0ff89a1ee070e69_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1300
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2212

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
d90d058932632b98cb66bdef00c13aaf

SHA1
32cd2400798ddefb1cdefe5080b4c72434663db7

SHA256
e1ec88e2b67810b2b1ebb9fa8c2e3fb7d8eacbe10c02681036d409015b1962ee

SHA512
32275f5f3af455e8fd802f8e2bc067ab287a09690bf0f8732e19700b20433f5aad3ca6ce9c5060989a6f88b34ed9b7a141bb2154767f53c9d3303405399b1e14

Download Submit
memory/1300-8-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download
memory/1300-1-0x00000000002E0000-0x00000000002E6000-memory.dmp

Filesize
24KB

Download
memory/1300-0-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download
memory/2212-15-0x00000000002F0000-0x00000000002F6000-memory.dmp

Filesize
24KB

Download