5eeb294ef4608614240e2e4cfd4a421b44459f1aaf14255dbda6db666a609b8e

Analysis

max time kernel
148s
max time network
151s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
18-02-2024 00:47

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General

Target

2024-02-18_b947d4365778beff41fada0789e54460_cryptolocker.exe
Size

36KB
MD5

b947d4365778beff41fada0789e54460
SHA1

05fdd6e85e0a8948b55726403e119ef639ee6224
SHA256

5eeb294ef4608614240e2e4cfd4a421b44459f1aaf14255dbda6db666a609b8e
SHA512

9163d0f336114ec43c12c8333f5834eb562f19aef3b6fb48b4f1f293989c951b9ad6148028c5451bbc591b39b48787cf9a1b99394f34fabf49cee25dddc1095b
SSDEEP

768:bA74zYcgT/Ekd0ryfjPIunqpeNswmT3H8:bA6YcA/X6G0W143c

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000a000000012243-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2204	hasfj.exe

Loads dropped DLL 1 IoCs

pid	Process
2000	2024-02-18_b947d4365778beff41fada0789e54460_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 2000 wrote to memory of 2204	2000	2024-02-18_b947d4365778beff41fada0789e54460_cryptolocker.exe	28
PID 2000 wrote to memory of 2204	2000	2024-02-18_b947d4365778beff41fada0789e54460_cryptolocker.exe	28
PID 2000 wrote to memory of 2204	2000	2024-02-18_b947d4365778beff41fada0789e54460_cryptolocker.exe	28
PID 2000 wrote to memory of 2204	2000	2024-02-18_b947d4365778beff41fada0789e54460_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-18_b947d4365778beff41fada0789e54460_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-18_b947d4365778beff41fada0789e54460_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2000
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:2204

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
36KB

MD5
a0336195ac3b160baf03106e1d110893

SHA1
b99d16a19265bb2bc112b40d01637d3b9c7775a6

SHA256
e471e00028c5f5fc6a6867c69a0177029dacb50603b947d383e59d273fb894bc

SHA512
2a1ba5b9a780abfa2f211675ba1a6074234006a309090a5be43fc457770fc32bd8a9aa9944e19b84aeb379eda648bc5418777a54ce7a57cbba572101a3ef7f99

Download Submit
memory/2000-0-0x0000000000200000-0x0000000000206000-memory.dmp

Filesize
24KB

Download
memory/2000-1-0x00000000002A0000-0x00000000002A6000-memory.dmp

Filesize
24KB

Download
memory/2000-2-0x0000000000200000-0x0000000000206000-memory.dmp

Filesize
24KB

Download
memory/2204-15-0x0000000001CE0000-0x0000000001CE6000-memory.dmp

Filesize
24KB

Download
memory/2204-17-0x0000000001C80000-0x0000000001C86000-memory.dmp

Filesize
24KB

Download