0b22324fd0355d87a3c870cfa98bf0ec841438eab71dbfb7c523616c123aaed1

Analysis

max time kernel
148s
max time network
151s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
05-03-2024 19:41

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General

Target

2024-03-05_8f92830042dfd06742b9751646fd1650_cryptolocker.exe
Size

47KB
MD5

8f92830042dfd06742b9751646fd1650
SHA1

d4f10ef3220c8663cea7bb86d1baf23b25281bd8
SHA256

0b22324fd0355d87a3c870cfa98bf0ec841438eab71dbfb7c523616c123aaed1
SHA512

8345abb698e8ba42b1efcf40f06dcaa203f59a7a9a4d3d3da5305950ec292b0ba58fabf1738c5a7c2360d7e02fd1e1a08c26cc3e6498d8434417ef4ac34acc10
SSDEEP

768:bgX4zYcgTEu6QOaryfjqDlC6JFbK37Yl6ddgI:bgGYcA/53GAA6y37Q6ddgI

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x00080000000122cd-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
3020	hasfj.exe

Loads dropped DLL 1 IoCs

pid	Process
1948	2024-03-05_8f92830042dfd06742b9751646fd1650_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 1948 wrote to memory of 3020	1948	2024-03-05_8f92830042dfd06742b9751646fd1650_cryptolocker.exe	28
PID 1948 wrote to memory of 3020	1948	2024-03-05_8f92830042dfd06742b9751646fd1650_cryptolocker.exe	28
PID 1948 wrote to memory of 3020	1948	2024-03-05_8f92830042dfd06742b9751646fd1650_cryptolocker.exe	28
PID 1948 wrote to memory of 3020	1948	2024-03-05_8f92830042dfd06742b9751646fd1650_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-05_8f92830042dfd06742b9751646fd1650_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-05_8f92830042dfd06742b9751646fd1650_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1948
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:3020

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\hasfj.exe

Filesize
48KB

MD5
81da4c683e4029193927ac59bf9a215f

SHA1
a0e3a1835ac513b0d53b1adc712a458133752ea1

SHA256
25780245dcd0d0f1ea9aa651eea02d9dae7f3e18315897b1ad8f055d3d8ece50

SHA512
07d7cdf8dfe71dfec77930b8bcd9fa7c4cd06a65496f18723389bf152c5509c3fcaec7ed0714bdc78fd3e3896d5af3ca38c0c19532dae82ad912053c4a025c62

Download Submit
memory/1948-0-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download
memory/1948-1-0x0000000000480000-0x0000000000486000-memory.dmp

Filesize
24KB

Download
memory/1948-8-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download
memory/3020-15-0x0000000001CB0000-0x0000000001CB6000-memory.dmp

Filesize
24KB

Download
memory/3020-18-0x0000000001CA0000-0x0000000001CA6000-memory.dmp

Filesize
24KB

Download