3b5d96c1f6eda8e49ec8b09956382374037d336ad351cd4f2eb3e6d7568b3c59

Analysis

max time kernel
148s
max time network
150s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
08/03/2024, 03:36

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General

Target

2024-03-08_56cf5f764871a372bb83ac1441171a58_cryptolocker.exe
Size

51KB
MD5

56cf5f764871a372bb83ac1441171a58
SHA1

984c67a2c4b231697cd1e327e2e82c5eeae369b7
SHA256

3b5d96c1f6eda8e49ec8b09956382374037d336ad351cd4f2eb3e6d7568b3c59
SHA512

e0516515a20e9cb34c6314c3ea0c671d58f50faad7f1987b98913c304972a9f9642dac2ef2c7ecb7c915992a57339ef0e699bbc5940948f2638787763e241580
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/BtOOtEvwDpjBVaD3E09vbEdoJ:X6QFElP6n+gJBMOtEvwDpjBtEB

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c00000001224f-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000c00000001224f-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
3004	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2524	2024-03-08_56cf5f764871a372bb83ac1441171a58_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 2524 wrote to memory of 3004	2524	2024-03-08_56cf5f764871a372bb83ac1441171a58_cryptolocker.exe	28
PID 2524 wrote to memory of 3004	2524	2024-03-08_56cf5f764871a372bb83ac1441171a58_cryptolocker.exe	28
PID 2524 wrote to memory of 3004	2524	2024-03-08_56cf5f764871a372bb83ac1441171a58_cryptolocker.exe	28
PID 2524 wrote to memory of 3004	2524	2024-03-08_56cf5f764871a372bb83ac1441171a58_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-08_56cf5f764871a372bb83ac1441171a58_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-08_56cf5f764871a372bb83ac1441171a58_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2524
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:3004

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
51KB

MD5
a4c4b3b7741948af7c49b67440a63d82

SHA1
05d7e7c429edbc1d21d27bbb9e7d0f746492bdfa

SHA256
1cc8971b9f8602e30246d350d72e7a02c8a474e3c6b3c8f85aaf44694f2f5f0d

SHA512
9a1a5d79faab7186d77ef337ed3d016def066a4631659beaae570600b9206b6b45ebd355f76036edc46ddcbd74375f002854e53a971059af188d7f1b10240e06

Download Submit
memory/2524-0-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download
memory/2524-1-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/2524-7-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download
memory/3004-22-0x0000000000250000-0x0000000000256000-memory.dmp

Filesize
24KB

Download
memory/3004-15-0x0000000000390000-0x0000000000396000-memory.dmp

Filesize
24KB

Download