afca8f2604efa6026258fb2e0dfc5984d66db89a5404de1c83c218d4282e8b0d

Analysis

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

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
26/01/2024, 22:26

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General

Target

2024-01-26_ebb557998641c83f5e9b258d30b44a86_cryptolocker.exe
Size

42KB
MD5

ebb557998641c83f5e9b258d30b44a86
SHA1

bc941be84733fd4ece400b784b4df30c0a0ebb4e
SHA256

afca8f2604efa6026258fb2e0dfc5984d66db89a5404de1c83c218d4282e8b0d
SHA512

f6264fd00e89cd951d4e2d22ecde09a52ada34cb829a0b99bb4068d93a11b9a334afc6364602ac29a35bdf9b495d95f6157c03d6708f929d2f7303b5e4a5b52a
SSDEEP

768:vQz7yVEhs9+js1SQtOOtEvwDpjz9+4REL+cc66nkpB:vj+jsMQMOtEvwDpj5HW5IiB

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x00090000000146c0-21.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x00090000000146c0-21.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
3012	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2884	2024-01-26_ebb557998641c83f5e9b258d30b44a86_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 2884 wrote to memory of 3012	2884	2024-01-26_ebb557998641c83f5e9b258d30b44a86_cryptolocker.exe	21
PID 2884 wrote to memory of 3012	2884	2024-01-26_ebb557998641c83f5e9b258d30b44a86_cryptolocker.exe	21
PID 2884 wrote to memory of 3012	2884	2024-01-26_ebb557998641c83f5e9b258d30b44a86_cryptolocker.exe	21
PID 2884 wrote to memory of 3012	2884	2024-01-26_ebb557998641c83f5e9b258d30b44a86_cryptolocker.exe	21

C:\Users\Admin\AppData\Local\Temp\2024-01-26_ebb557998641c83f5e9b258d30b44a86_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-26_ebb557998641c83f5e9b258d30b44a86_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2884
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:3012

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

C:\Users\Admin\AppData\Local\Temp\misid.exe

Filesize
42KB

MD5
d4e3d6ae11dcd8b97c15ef74458cf7ea

SHA1
cee9e84747f5f5a2800e3767b286ac256f05c6d2

SHA256
1f8abb73651bbabbe8a3d4e7690a2ed27f50ae056ddd1e8a7165a11136dec377

SHA512
68827d7f4bcd5878466f6181f6d28bc560b816a0ee5aaddfb7e8c2bd10d1ff951b033720ac03a8934c321155bff503d838ae1156d608f892fbcc3b4636a82839

Download Submit
memory/2884-1-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/2884-0-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2884-8-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/3012-15-0x0000000000480000-0x0000000000486000-memory.dmp

Filesize
24KB

Download
memory/3012-22-0x0000000000250000-0x0000000000256000-memory.dmp

Filesize
24KB

Download