cb13d09acf156b10110615a604a6e6e3f54b9e3229ec26e93c1dd3ad4f3cd652

Analysis

max time kernel
147s
max time network
148s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
07-05-2024 03:43

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General

Target

2024-05-07_a4044ae4ddb189826b0a08051ccac8fa_cryptolocker.exe
Size

46KB
MD5

a4044ae4ddb189826b0a08051ccac8fa
SHA1

521aeec0da6f1f000a31d4794eb88a522653e3f0
SHA256

cb13d09acf156b10110615a604a6e6e3f54b9e3229ec26e93c1dd3ad4f3cd652
SHA512

05fb197d430d10f5b7d01336a43a7befc5fd2f90b7c5ceb6003626c029a544dc4c69032952226f3dac7702fc196fe9b70f8d87d48fce9b1c26c7e6fb856e5523
SSDEEP

768:V6LsoEEeegiZPvEhHSG+gDYQtOOtEvwDpj/MLam5aFr7YOzzfm0EXsBS:V6QFElP6n+gMQMOtEvwDpjyaYaFAh3WS

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000d000000015d59-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000d000000015d59-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
1976	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2064	2024-05-07_a4044ae4ddb189826b0a08051ccac8fa_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 2064 wrote to memory of 1976	2064	2024-05-07_a4044ae4ddb189826b0a08051ccac8fa_cryptolocker.exe	28
PID 2064 wrote to memory of 1976	2064	2024-05-07_a4044ae4ddb189826b0a08051ccac8fa_cryptolocker.exe	28
PID 2064 wrote to memory of 1976	2064	2024-05-07_a4044ae4ddb189826b0a08051ccac8fa_cryptolocker.exe	28
PID 2064 wrote to memory of 1976	2064	2024-05-07_a4044ae4ddb189826b0a08051ccac8fa_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-07_a4044ae4ddb189826b0a08051ccac8fa_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-07_a4044ae4ddb189826b0a08051ccac8fa_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2064
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:1976

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
46KB

MD5
3fa116979b643f3140acd0d3a37c243c

SHA1
21284da7467608302eb9da1ac9ff2a8e66f91886

SHA256
94834c0a9944f2bfe0c649398dd62f99e6bc32592456ad039761beac1b8a71b8

SHA512
ed71b8040fd75f4b3bba88f7c8f3d234161d8dd4e09793fced881cd9b49bd954ce3f5127ad739b9b3569a5a95e335168acbdb0e219d3481f62c853630c70afc2

Download Submit
memory/1976-15-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download
memory/1976-22-0x0000000000420000-0x0000000000426000-memory.dmp

Filesize
24KB

Download
memory/2064-1-0x00000000004B0000-0x00000000004B6000-memory.dmp

Filesize
24KB

Download
memory/2064-8-0x0000000000460000-0x0000000000466000-memory.dmp

Filesize
24KB

Download
memory/2064-0-0x0000000000460000-0x0000000000466000-memory.dmp

Filesize
24KB

Download