358e537b07284ba43885a64a4a7f75309a362bb921675315a8771ba9a7635302

Analysis

max time kernel
150s
max time network
153s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
22/02/2024, 09:56

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General

Target

2024-02-22_a2cf6c42678192541169c63f5c9d21db_cryptolocker.exe
Size

55KB
MD5

a2cf6c42678192541169c63f5c9d21db
SHA1

dfdd9764e09018c6d34288585cfe11cfd15d0d94
SHA256

358e537b07284ba43885a64a4a7f75309a362bb921675315a8771ba9a7635302
SHA512

c1db050dc86f8c60ba8ffa33f30ae8909504a1a62dad3f669d2cdc11bc9b8056f0982f27f57036a8bbcdf6e9c0b782822de418716053298bcf7ad160e573af79
SSDEEP

768:79inqyNR/QtOOtEvwDpjBK/iVTab3GRuv3VylSV/Cd9z3j:79mqyNhQMOtEvwDpjBPY7xv3g8Sv

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral1/memory/320-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000800000001222c-11.dat	CryptoLocker_rule2
behavioral1/memory/320-15-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/1456-16-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral1/memory/320-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000800000001222c-11.dat	CryptoLocker_set1
behavioral1/memory/320-15-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/memory/1456-16-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
1456	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
320	2024-02-22_a2cf6c42678192541169c63f5c9d21db_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 320 wrote to memory of 1456	320	2024-02-22_a2cf6c42678192541169c63f5c9d21db_cryptolocker.exe	28
PID 320 wrote to memory of 1456	320	2024-02-22_a2cf6c42678192541169c63f5c9d21db_cryptolocker.exe	28
PID 320 wrote to memory of 1456	320	2024-02-22_a2cf6c42678192541169c63f5c9d21db_cryptolocker.exe	28
PID 320 wrote to memory of 1456	320	2024-02-22_a2cf6c42678192541169c63f5c9d21db_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-22_a2cf6c42678192541169c63f5c9d21db_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-22_a2cf6c42678192541169c63f5c9d21db_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:320
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:1456

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
0ab34dc3228fa0dc9a45825f98745dd1

SHA1
b80b06811a20b56924c5527462b7d59b433a182b

SHA256
a1acafb2158ee2821f263a2f70aabf0d3ec9686cde1994d7d99020d645c689e0

SHA512
718b795d09d4c158865d8d785c2b852c2400ec306b1776d9e19ef820275e43b0bde66bb68405ae267b6eff003f4196cf2f639b26e82d3f00ec513127432622bc

Download Submit
memory/320-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/320-1-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/320-3-0x00000000004B0000-0x00000000004B6000-memory.dmp

Filesize
24KB

Download
memory/320-2-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/320-15-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/1456-16-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/1456-19-0x0000000000380000-0x0000000000386000-memory.dmp

Filesize
24KB

Download
memory/1456-18-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download