5b7f7e319d8eb4ba08e140aa63f9c2bfcdbc0484e4281565f513a24c7e5e6a95

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
28/05/2024, 23:24

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General

Target

2024-05-28_3af4a4564ee3570e72a71ebcb5246730_cryptolocker.exe
Size

42KB
MD5

3af4a4564ee3570e72a71ebcb5246730
SHA1

97d720d23c38e80408966fd6d933c527f91b5d56
SHA256

5b7f7e319d8eb4ba08e140aa63f9c2bfcdbc0484e4281565f513a24c7e5e6a95
SHA512

3821c66fc4e0f48a066e558e4cdd64bf96316b00db3197a474b091798693d50aa7856f8f07648785b150679bdd4727243aec0d6d2c0a2fec971caabc98de4913
SSDEEP

768:bA74zYcgT/Ekd0ryfjPIunqpeNswmT3Hwx:bA6YcA/X6G0W143Qx

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000014abe-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2884	hasfj.exe

Loads dropped DLL 1 IoCs

pid	Process
3040	2024-05-28_3af4a4564ee3570e72a71ebcb5246730_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 3040 wrote to memory of 2884	3040	2024-05-28_3af4a4564ee3570e72a71ebcb5246730_cryptolocker.exe	28
PID 3040 wrote to memory of 2884	3040	2024-05-28_3af4a4564ee3570e72a71ebcb5246730_cryptolocker.exe	28
PID 3040 wrote to memory of 2884	3040	2024-05-28_3af4a4564ee3570e72a71ebcb5246730_cryptolocker.exe	28
PID 3040 wrote to memory of 2884	3040	2024-05-28_3af4a4564ee3570e72a71ebcb5246730_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-28_3af4a4564ee3570e72a71ebcb5246730_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-28_3af4a4564ee3570e72a71ebcb5246730_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:3040
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:2884

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
42KB

MD5
79b8e9a23fdb67b48ed2860427b7d6b6

SHA1
89a1c80dfd44ad276c8c47cfb0f933161a6f6dec

SHA256
37e53b17237495c27bea2afcbf704a0146c681d975980bd6398cb06b0836744e

SHA512
830da029412adea7392e32d76f33d5d9f5420ecbb02e1df80364ce12e922635161051ea1df6e9908c6b14d73c1e0dd5795e62d65be99b8583e5588b8bb9d88e5

Download Submit
memory/2884-15-0x0000000000580000-0x0000000000586000-memory.dmp

Filesize
24KB

Download
memory/2884-22-0x0000000000390000-0x0000000000396000-memory.dmp

Filesize
24KB

Download
memory/3040-0-0x00000000002A0000-0x00000000002A6000-memory.dmp

Filesize
24KB

Download
memory/3040-8-0x00000000002A0000-0x00000000002A6000-memory.dmp

Filesize
24KB

Download
memory/3040-1-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download