45c3e823b6e4bf010b8bdf9f6e66d4c879b54a2f73e4dea900044bbd93fbe3ff

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
03/06/2024, 06:39

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General

Target

2024-06-03_9e2d89b8a2b89a98f371b572829f29bd_cryptolocker.exe
Size

45KB
MD5

9e2d89b8a2b89a98f371b572829f29bd
SHA1

9de0190e63d191d6835061b5f36baaa16bb78147
SHA256

45c3e823b6e4bf010b8bdf9f6e66d4c879b54a2f73e4dea900044bbd93fbe3ff
SHA512

6d8776bfeb3390ad78ecb7f9807149ed418f9a32fe606862fd1933b155fc40b724efdb154b0c5de0f0c984a8b64f619f06604dd91d7193347d47ad0783caf054
SSDEEP

384:bm74uGLLQRcsdeQ72ngEr4K7YmE8jb0nrlwfjDUadQC8Y:bm74zYcgT/EkM0ryfjPdQZY

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/2228-0-0x0000000008000000-0x000000000800D000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000c00000001226d-11.dat	CryptoLocker_rule2
behavioral1/memory/2228-15-0x0000000008000000-0x000000000800D000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2496-16-0x0000000008000000-0x000000000800D000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2496-26-0x0000000008000000-0x000000000800D000-memory.dmp	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2496	hasfj.exe

Loads dropped DLL 1 IoCs

pid	Process
2228	2024-06-03_9e2d89b8a2b89a98f371b572829f29bd_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 2228 wrote to memory of 2496	2228	2024-06-03_9e2d89b8a2b89a98f371b572829f29bd_cryptolocker.exe	28
PID 2228 wrote to memory of 2496	2228	2024-06-03_9e2d89b8a2b89a98f371b572829f29bd_cryptolocker.exe	28
PID 2228 wrote to memory of 2496	2228	2024-06-03_9e2d89b8a2b89a98f371b572829f29bd_cryptolocker.exe	28
PID 2228 wrote to memory of 2496	2228	2024-06-03_9e2d89b8a2b89a98f371b572829f29bd_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-06-03_9e2d89b8a2b89a98f371b572829f29bd_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-03_9e2d89b8a2b89a98f371b572829f29bd_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2228
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:2496

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
45KB

MD5
891fc24ba0bc291aae146a8b918a3b21

SHA1
216aa1069a29aae753ad104f7ab567b7b758d8bf

SHA256
f211e36345e212d9bc620481ad9b5b5820b84675274fcf33608caaf5c5234a75

SHA512
d927e0329d8559cfe2d53c9d4cc93abca681572ca99c60a0ac08bab306ccf14d9da0602c0971a0d85f8c8111c9a22d54fdcec4bd8498d44516d5c31fa5aec0b8

Download Submit
memory/2228-0-0x0000000008000000-0x000000000800D000-memory.dmp

Filesize
52KB

Download
memory/2228-1-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download
memory/2228-9-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download
memory/2228-2-0x0000000000480000-0x0000000000486000-memory.dmp

Filesize
24KB

Download
memory/2228-15-0x0000000008000000-0x000000000800D000-memory.dmp

Filesize
52KB

Download
memory/2496-16-0x0000000008000000-0x000000000800D000-memory.dmp

Filesize
52KB

Download
memory/2496-25-0x0000000000370000-0x0000000000376000-memory.dmp

Filesize
24KB

Download
memory/2496-18-0x0000000000590000-0x0000000000596000-memory.dmp

Filesize
24KB

Download
memory/2496-26-0x0000000008000000-0x000000000800D000-memory.dmp

Filesize
52KB

Download