961ca6fb8a0b2ede2133047998e7802cd8c10a5d2e56ed98dbefad9438d8d870

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
23/05/2024, 04:32

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General

Target

2024-05-23_abff8145d9ec3c401521820dec4b5505_cryptolocker.exe
Size

76KB
MD5

abff8145d9ec3c401521820dec4b5505
SHA1

402be2a5adcd69c5d57df61aa85ebea8157136bd
SHA256

961ca6fb8a0b2ede2133047998e7802cd8c10a5d2e56ed98dbefad9438d8d870
SHA512

430a09cfdaa86acaf97ed1082d93649da2e4b937502d49ddbe699125b805fd8638cb21e89cdcbbbd5962aa6fabb676bf33ecc04f9b2bc9eb9e6a664dc7dbf7b6
SSDEEP

1536:X6QFElP6n+gJQMOtEvwDpjBZYTjipvF2bx1rHsoU:X6a+SOtEvwDpjBZYvQd2y

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c0000000144e4-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000c0000000144e4-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
1188	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
3024	2024-05-23_abff8145d9ec3c401521820dec4b5505_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 3024 wrote to memory of 1188	3024	2024-05-23_abff8145d9ec3c401521820dec4b5505_cryptolocker.exe	28
PID 3024 wrote to memory of 1188	3024	2024-05-23_abff8145d9ec3c401521820dec4b5505_cryptolocker.exe	28
PID 3024 wrote to memory of 1188	3024	2024-05-23_abff8145d9ec3c401521820dec4b5505_cryptolocker.exe	28
PID 3024 wrote to memory of 1188	3024	2024-05-23_abff8145d9ec3c401521820dec4b5505_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-23_abff8145d9ec3c401521820dec4b5505_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-23_abff8145d9ec3c401521820dec4b5505_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:3024
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:1188

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
76KB

MD5
3591500cc36276181447c9342f261d46

SHA1
94c2743cf8469a5f236395ee775c20d434eb61ba

SHA256
12ab4579815e6c3232bf45dd1c20090b1604cc9552ad47d120835c9fcf7bf6a0

SHA512
b9d53d863b064c56c5ba2f981491e6395e5d0c7f5eb75120bdfad1753d6df78e7762ffd7329831990de04eea2d64a44c661e6e9c7f92fd7e1bc8353cda4b7dfe

Download Submit
memory/1188-15-0x0000000000210000-0x0000000000216000-memory.dmp

Filesize
24KB

Download
memory/1188-22-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/3024-0-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/3024-1-0x0000000000380000-0x0000000000386000-memory.dmp

Filesize
24KB

Download
memory/3024-8-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download