dec4157e1d59642cadcd26c326b28e79c6ccd3d20108d4830eca9f94eb9ae890

Analysis

max time kernel
149s
max time network
149s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
12-03-2024 01:32

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General

Target

2024-03-12_40bbd6e7653f0baaeff3dcd78aa1d0f3_cryptolocker.exe
Size

55KB
MD5

40bbd6e7653f0baaeff3dcd78aa1d0f3
SHA1

e05ad365b9cbfc98075513caebfa11013d8282e0
SHA256

dec4157e1d59642cadcd26c326b28e79c6ccd3d20108d4830eca9f94eb9ae890
SHA512

a26544b7ce3d0225c22ceb807cfc64d67842e22863893b95b445abf1fd7937c05f49b6ae83895db9ada3907168cbf70cf8d8de4ad49e75b9fe83e26622c343b2
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/BtOOtEvwDpjBVaD3E09vaTiSfQaV2L0zN/Pcm+X:X6QFElP6n+gJBMOtEvwDpjBtE1yILOkp

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x0009000000014abe-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x0009000000014abe-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
632	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2220	2024-03-12_40bbd6e7653f0baaeff3dcd78aa1d0f3_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 2220 wrote to memory of 632	2220	2024-03-12_40bbd6e7653f0baaeff3dcd78aa1d0f3_cryptolocker.exe	28
PID 2220 wrote to memory of 632	2220	2024-03-12_40bbd6e7653f0baaeff3dcd78aa1d0f3_cryptolocker.exe	28
PID 2220 wrote to memory of 632	2220	2024-03-12_40bbd6e7653f0baaeff3dcd78aa1d0f3_cryptolocker.exe	28
PID 2220 wrote to memory of 632	2220	2024-03-12_40bbd6e7653f0baaeff3dcd78aa1d0f3_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-12_40bbd6e7653f0baaeff3dcd78aa1d0f3_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-12_40bbd6e7653f0baaeff3dcd78aa1d0f3_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2220
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:632

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
55KB

MD5
636305ee708850119eec4c185a54417d

SHA1
35e2d7f8184b936ae14ae98df87be06b805b4819

SHA256
6a0d1a3e67c3d6b71a79e2fa376c67aa39882f13a3aff6d3fb3499257cacb353

SHA512
4ba0d2bbca085289de2dc39a0a48963160f7f20f9eb68ff5b740cc4cf92c81f0bb318bb3da443cea2916886941943ed03a6d621b49dc5afd4cf8aedc55b34fd8

Download Submit
memory/632-15-0x0000000000480000-0x0000000000486000-memory.dmp

Filesize
24KB

Download
memory/2220-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2220-2-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2220-1-0x0000000000370000-0x0000000000376000-memory.dmp

Filesize
24KB

Download