e2544fb1e73e8c5f0c4a957eb8ca7752a43343801f87c83f5e9a37bbdd1b2b12

Analysis

max time kernel
147s
max time network
151s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
03/02/2024, 17:33

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General

Target

2024-02-03_d32e17a237b28bddaf063f31493318f2_cryptolocker.exe
Size

57KB
MD5

d32e17a237b28bddaf063f31493318f2
SHA1

15158de794013c3721d6d0030be462b44bd83997
SHA256

e2544fb1e73e8c5f0c4a957eb8ca7752a43343801f87c83f5e9a37bbdd1b2b12
SHA512

fea7ba3b324b4fa71dc4842c7aee55db03bd429a830a8c7bb81bce42813e13461ea65f7bc51b8f75ec20b2796885af3ac00d6a99378b09770fc5c4859b613404
SSDEEP

768:V6LsoEEeegiZPvEhHSG+gDYQtOOtEvwDpj/MLa5VccPt547/qa:V6QFElP6n+gMQMOtEvwDpjyaLccVCb5

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b00000001223f-13.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000b00000001223f-13.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2004	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1740	2024-02-03_d32e17a237b28bddaf063f31493318f2_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 1740 wrote to memory of 2004	1740	2024-02-03_d32e17a237b28bddaf063f31493318f2_cryptolocker.exe	28
PID 1740 wrote to memory of 2004	1740	2024-02-03_d32e17a237b28bddaf063f31493318f2_cryptolocker.exe	28
PID 1740 wrote to memory of 2004	1740	2024-02-03_d32e17a237b28bddaf063f31493318f2_cryptolocker.exe	28
PID 1740 wrote to memory of 2004	1740	2024-02-03_d32e17a237b28bddaf063f31493318f2_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-03_d32e17a237b28bddaf063f31493318f2_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-03_d32e17a237b28bddaf063f31493318f2_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1740
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2004

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

C:\Users\Admin\AppData\Local\Temp\asih.exe

Filesize
58KB

MD5
cf3a51a43e1498d386dfa0e0a39e7920

SHA1
8783e3756a103af5674205492cd309d686234fd6

SHA256
143e3e42dc575df7899142c7254017a8b326d006460c9d6ae7e1d4dc1f356683

SHA512
834663564764f78f296ad6cfec543cce29c4f6ecf10ff55e7ec11786f35f7e5efb1c46a7943b2a7255d713e446054bb246e8a3c3068b2d7c16cc08e835249c72

Download Submit
memory/1740-1-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/1740-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1740-8-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2004-15-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download