c49436881502e471e88652290ba7e1f9f3ce9653280ba419d783f618a52e8b7b

Analysis

max time kernel
149s
max time network
153s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
21/05/2024, 08:52

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General

Target

2024-05-21_f62acd278577188ad8a7456547cf3140_cryptolocker.exe
Size

33KB
MD5

f62acd278577188ad8a7456547cf3140
SHA1

1c6f3a434e6641e3f710c84dc3d171f04eda1c16
SHA256

c49436881502e471e88652290ba7e1f9f3ce9653280ba419d783f618a52e8b7b
SHA512

027f0e0f2aa599e9577d3968b1c81e6bc97b2574c75bac3990b9a7a519a56abf0cffb4d793aa2d0f40fdf093f0c6c90d91e53be4d53cee96f7f12cebeb391db3
SSDEEP

384:bG74uGLLQRcsdeQ72ngEr4K7YmE8j60nrlwfjDUGTGXvx0:bG74zYcgT/Ekd0ryfjkO

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/2472-0-0x0000000008000000-0x000000000800A000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000e000000012122-11.dat	CryptoLocker_rule2
behavioral1/memory/2284-16-0x0000000008000000-0x000000000800A000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2472-15-0x0000000008000000-0x000000000800A000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2284-26-0x0000000008000000-0x000000000800A000-memory.dmp	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2284	hasfj.exe

Loads dropped DLL 1 IoCs

pid	Process
2472	2024-05-21_f62acd278577188ad8a7456547cf3140_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 2472 wrote to memory of 2284	2472	2024-05-21_f62acd278577188ad8a7456547cf3140_cryptolocker.exe	28
PID 2472 wrote to memory of 2284	2472	2024-05-21_f62acd278577188ad8a7456547cf3140_cryptolocker.exe	28
PID 2472 wrote to memory of 2284	2472	2024-05-21_f62acd278577188ad8a7456547cf3140_cryptolocker.exe	28
PID 2472 wrote to memory of 2284	2472	2024-05-21_f62acd278577188ad8a7456547cf3140_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-21_f62acd278577188ad8a7456547cf3140_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-21_f62acd278577188ad8a7456547cf3140_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2472
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:2284

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
33KB

MD5
c09cb31f3faf1928d6f6937dc7385de3

SHA1
2fb4edbf2bc08671dbbc133f510f9f4d712cb47b

SHA256
b3dfbe2f27d3a5dcda2ea2ce13d357d2ca89644251f0ef3128be69a4c98b732e

SHA512
baab3146cf85495e835f817f1239b5466f158574f95ca2c01f26c661ca5ba5033bbe074785647c12bb4d41120330f2a75330fba1fd1665e6df0c56bb9bad202e

Download Submit
memory/2284-16-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download
memory/2284-18-0x0000000001CB0000-0x0000000001CB6000-memory.dmp

Filesize
24KB

Download
memory/2284-25-0x0000000001CA0000-0x0000000001CA6000-memory.dmp

Filesize
24KB

Download
memory/2284-26-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download
memory/2472-0-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download
memory/2472-1-0x00000000002A0000-0x00000000002A6000-memory.dmp

Filesize
24KB

Download
memory/2472-2-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download
memory/2472-9-0x00000000002A0000-0x00000000002A6000-memory.dmp

Filesize
24KB

Download
memory/2472-15-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download