0d671c0fe0bfa4d277f3497e30cd20792186659b78c954b7807d4c3b2f006c5f

Analysis

max time kernel
147s
max time network
149s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
31/05/2024, 06:33

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General

Target

2024-05-31_5f96721517824c44fe9fc5568facea85_cryptolocker.exe
Size

47KB
MD5

5f96721517824c44fe9fc5568facea85
SHA1

1fe1f6c5263ea621388f9d629b82d51d1077c225
SHA256

0d671c0fe0bfa4d277f3497e30cd20792186659b78c954b7807d4c3b2f006c5f
SHA512

e774b38bae33f40904f0aa2e394c718a59a9013c9aee9fdc2024d9239882ae227397a7a9a008a3907891926541bad42693e2ca35b4d1c7f7527dab436433c263
SSDEEP

768:V6LsoEEeegiZPvEhHSG+gDYQtOOtEvwDpj/MLam5aFr7YOzzfm0EXsB7A:V6QFElP6n+gMQMOtEvwDpjyaYaFAh3WE

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c000000013f2c-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000c000000013f2c-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2976	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2100	2024-05-31_5f96721517824c44fe9fc5568facea85_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 2100 wrote to memory of 2976	2100	2024-05-31_5f96721517824c44fe9fc5568facea85_cryptolocker.exe	28
PID 2100 wrote to memory of 2976	2100	2024-05-31_5f96721517824c44fe9fc5568facea85_cryptolocker.exe	28
PID 2100 wrote to memory of 2976	2100	2024-05-31_5f96721517824c44fe9fc5568facea85_cryptolocker.exe	28
PID 2100 wrote to memory of 2976	2100	2024-05-31_5f96721517824c44fe9fc5568facea85_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-31_5f96721517824c44fe9fc5568facea85_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-31_5f96721517824c44fe9fc5568facea85_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2100
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2976

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
47KB

MD5
3be250583e436c459d37a90e052eb415

SHA1
77a1aa3a48d8fe6125eea0c40fd3dd9793db8524

SHA256
0d9e4c35aa22406186e1b6a19b0aaca39a9f1cc3abebaec207940ed1860fc01f

SHA512
6a431fbc1d3fac5dee30c837c9d0454ac860814f695f75b476d4eedd7a49f351daa44f7de447d64e4503d69e3913e11fba349a83f24133dfb9f0703544d4f47f

Download Submit
memory/2100-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2100-1-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download
memory/2100-8-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2976-15-0x00000000004A0000-0x00000000004A6000-memory.dmp

Filesize
24KB

Download