bf7261febfb6f3450c28b74e8a819b64cfe933a7be5972a5c1cb05974c9ca7a0

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
13/02/2024, 04:54

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General

Target

2024-02-13_6a4c8d6ac20388fd061c7f6db9a8437b_cryptolocker.exe
Size

37KB
MD5

6a4c8d6ac20388fd061c7f6db9a8437b
SHA1

91c496af865ee3c113a471af0ff6a5a4ca23636a
SHA256

bf7261febfb6f3450c28b74e8a819b64cfe933a7be5972a5c1cb05974c9ca7a0
SHA512

5fd1b076e6097c764e2e75aa80ca057ec5f3e2b5457895add6b4627237e1740c72d110bf7ef471a8b49d71e2beb81b5c3b9bf1bd27860e6fd5189e9f33b6d97c
SSDEEP

768:bxNQIE0eBhkL2Fo1CCwgfjOg1tsJ6zeen7JEgx3O/:bxNrC7kYo1Fxf3s06gY/

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000a000000015626-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
3004	pissa.exe

Loads dropped DLL 1 IoCs

pid	Process
2232	2024-02-13_6a4c8d6ac20388fd061c7f6db9a8437b_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 2232 wrote to memory of 3004	2232	2024-02-13_6a4c8d6ac20388fd061c7f6db9a8437b_cryptolocker.exe	28
PID 2232 wrote to memory of 3004	2232	2024-02-13_6a4c8d6ac20388fd061c7f6db9a8437b_cryptolocker.exe	28
PID 2232 wrote to memory of 3004	2232	2024-02-13_6a4c8d6ac20388fd061c7f6db9a8437b_cryptolocker.exe	28
PID 2232 wrote to memory of 3004	2232	2024-02-13_6a4c8d6ac20388fd061c7f6db9a8437b_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-13_6a4c8d6ac20388fd061c7f6db9a8437b_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-13_6a4c8d6ac20388fd061c7f6db9a8437b_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2232
- C:\Users\Admin\AppData\Local\Temp\pissa.exe
  "C:\Users\Admin\AppData\Local\Temp\pissa.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\pissa.exe

Filesize
37KB

MD5
54b4902506544661277c552292cea67e

SHA1
3c1def335d5b493fc80eec6aa290b580ab6666c8

SHA256
a75defae704656c39fe04344654429c504216d4549bb6581e27b0f28d5a522f2

SHA512
175f473818e06d1874edecf808d29d341bfdfa9bcd5df57a6d9c4355535271b133736fa19f4718846aef961fea0a62c7fc8f970cd52f08ac9b20564d283b0cd4

Download Submit
memory/2232-0-0x0000000000530000-0x0000000000536000-memory.dmp

Filesize
24KB

Download
memory/2232-1-0x0000000000540000-0x0000000000546000-memory.dmp

Filesize
24KB

Download
memory/2232-8-0x0000000000530000-0x0000000000536000-memory.dmp

Filesize
24KB

Download
memory/3004-15-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/3004-22-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download