863527bd80ada6ccb639d825996e851f7d5f27895cbc554ad67ac68f9a73dfda

Analysis

max time kernel
150s
max time network
154s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
26/03/2024, 01:46

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General

Target

2024-03-26_d0d1d86d7238b16092656c74b4a21af8_cryptolocker.exe
Size

38KB
MD5

d0d1d86d7238b16092656c74b4a21af8
SHA1

ce92f0358f9cc3b82d85459f7d007f79300f5d0e
SHA256

863527bd80ada6ccb639d825996e851f7d5f27895cbc554ad67ac68f9a73dfda
SHA512

525df8874c2c5b6cdda734c2f3babb9d8fbbc5c4ba38beb4c2f2c770180435a197c35bd74e18e6f785aeba5563ca42c74dd3188393ffc26a00f0abee4bb02aba
SSDEEP

768:V6LsoEEeegiZPvEhHSG+gDYQtOOtEvwDpj/MLam5ax0:V6QFElP6n+gMQMOtEvwDpjyaYa+

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
2632	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2884	2024-03-26_d0d1d86d7238b16092656c74b4a21af8_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 2632	2884	2024-03-26_d0d1d86d7238b16092656c74b4a21af8_cryptolocker.exe	28
PID 2884 wrote to memory of 2632	2884	2024-03-26_d0d1d86d7238b16092656c74b4a21af8_cryptolocker.exe	28
PID 2884 wrote to memory of 2632	2884	2024-03-26_d0d1d86d7238b16092656c74b4a21af8_cryptolocker.exe	28
PID 2884 wrote to memory of 2632	2884	2024-03-26_d0d1d86d7238b16092656c74b4a21af8_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-26_d0d1d86d7238b16092656c74b4a21af8_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-26_d0d1d86d7238b16092656c74b4a21af8_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:2632

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
38KB

MD5
428cd0ac8cec6ea4a6e16ae85f0604bf

SHA1
6e5a2729704ab13db56003003684a9df8b478c12

SHA256
639bda082b57a95e6388647204b847bdbf01548ffab9fa4ef3fcc09e69c26e99

SHA512
9805cafc4e453e932bf4c135b55944f66785ad0a4b616395540c97f3b5ba1761e7275df73dd0e1cbca78a827da11e0bdc7ddaed83511155768c9e0c5abcd8d50

Download Submit
memory/2632-16-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/2632-15-0x00000000002D0000-0x00000000002D6000-memory.dmp

Filesize
24KB

Download
memory/2884-0-0x00000000001C0000-0x00000000001C6000-memory.dmp

Filesize
24KB

Download
memory/2884-1-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/2884-7-0x00000000001C0000-0x00000000001C6000-memory.dmp

Filesize
24KB

Download