bee38e09c36374fb529b54d7f7f8ea7964a557d780b1f03880d62e968ff6f7da

Analysis

max time kernel
146s
max time network
150s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
18-02-2024 05:04

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General

Target

2024-02-18_d7bf2f1326ed581dd6fd6c70f818c1a3_cryptolocker.exe
Size

43KB
MD5

d7bf2f1326ed581dd6fd6c70f818c1a3
SHA1

360cba3b0f5b1349dc3dbf248b92ea20df258174
SHA256

bee38e09c36374fb529b54d7f7f8ea7964a557d780b1f03880d62e968ff6f7da
SHA512

ac908d124747decde54a60aa66bd22d005070f95cc2b6c741c60f2dfe95b4443ef03f9ab83d75959e8b21fe5a20f1aa0e8d8845b0c447188e8d61fad23820d3a
SSDEEP

768:bxNQIE0eBhkL2Fo1CCwgfjOg1tsJ6zeen754XcwxbFp13/7xlP:bxNrC7kYo1Fxf3s05rwxbF73NlP

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000012185-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2664	pissa.exe

Loads dropped DLL 1 IoCs

pid	Process
2432	2024-02-18_d7bf2f1326ed581dd6fd6c70f818c1a3_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 2432 wrote to memory of 2664	2432	2024-02-18_d7bf2f1326ed581dd6fd6c70f818c1a3_cryptolocker.exe	28
PID 2432 wrote to memory of 2664	2432	2024-02-18_d7bf2f1326ed581dd6fd6c70f818c1a3_cryptolocker.exe	28
PID 2432 wrote to memory of 2664	2432	2024-02-18_d7bf2f1326ed581dd6fd6c70f818c1a3_cryptolocker.exe	28
PID 2432 wrote to memory of 2664	2432	2024-02-18_d7bf2f1326ed581dd6fd6c70f818c1a3_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-18_d7bf2f1326ed581dd6fd6c70f818c1a3_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-18_d7bf2f1326ed581dd6fd6c70f818c1a3_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2432
- C:\Users\Admin\AppData\Local\Temp\pissa.exe
  "C:\Users\Admin\AppData\Local\Temp\pissa.exe"
  2⤵
  - Executes dropped EXE
  PID:2664

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\pissa.exe

Filesize
43KB

MD5
b45a45b85291847aa8137e46007db46b

SHA1
931f856659e8beb33bd8092918f9fbd04c9171de

SHA256
93755c1150a302d0272af068e2353848ec2e2f4649c3dc649cb1db1fcd7db640

SHA512
9e4177bcd6b8ceede78c55e096b08f358c88802ac578582d51e9bc1c442eedaa126486e0b5433c6d6681d63d5b71c2a1032fe731db47f937b5a0f1fab7e71224

Download Submit
memory/2432-0-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/2432-1-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download
memory/2432-8-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/2664-15-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/2664-18-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download