2de9aef5fb6fdda24cd4af14993195232751f1d0201f33b9f268659988e5814e

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
16/03/2024, 09:38

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General

Target

2024-03-16_6e997d74706db065a18cf74521464024_cryptolocker.exe
Size

45KB
MD5

6e997d74706db065a18cf74521464024
SHA1

3924d42e578b5b326d09c9e06955b9888d248528
SHA256

2de9aef5fb6fdda24cd4af14993195232751f1d0201f33b9f268659988e5814e
SHA512

023fa997ea5a33e7d3ed3ec5ce05286d609529c1de1aadab01a399c8c5ee370a9112dea4a991d9750455282832476e65926111a5711a9e4d7e008589ca2eaf06
SSDEEP

768:b7o/2n1TCraU6GD1a4X0WcO+wMVm+slAMRqmz4kmmIPTY:bc/y2lkF0+BjjIIbY

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b00000001224e-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2776	rewok.exe

Loads dropped DLL 1 IoCs

pid	Process
2884	2024-03-16_6e997d74706db065a18cf74521464024_cryptolocker.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
2884	2024-03-16_6e997d74706db065a18cf74521464024_cryptolocker.exe
2776	rewok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2884 wrote to memory of 2776	2884	2024-03-16_6e997d74706db065a18cf74521464024_cryptolocker.exe	28
PID 2884 wrote to memory of 2776	2884	2024-03-16_6e997d74706db065a18cf74521464024_cryptolocker.exe	28
PID 2884 wrote to memory of 2776	2884	2024-03-16_6e997d74706db065a18cf74521464024_cryptolocker.exe	28
PID 2884 wrote to memory of 2776	2884	2024-03-16_6e997d74706db065a18cf74521464024_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-16_6e997d74706db065a18cf74521464024_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-16_6e997d74706db065a18cf74521464024_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2884
- C:\Users\Admin\AppData\Local\Temp\rewok.exe
  "C:\Users\Admin\AppData\Local\Temp\rewok.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of UnmapMainImage
  PID:2776

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\rewok.exe

Filesize
45KB

MD5
cd2ff766bc796970336de3e1d0975f01

SHA1
a8857e64a2e542db209e2275c4b2e6e8bb16d003

SHA256
dbff3277424225d32ce4566ec2a437ff07be3de1c23793a8ef8196ad5bb1ba8e

SHA512
eef761a911923aa67b06ca5cc5c4b4e13af77e1dda658b22f821ca4f8452cffbf441c53a7a839bd2159797aed529a5982c17f45cd52c8073ab26b65b70183d80

Download Submit
memory/2776-23-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

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

Filesize
24KB

Download
memory/2884-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2884-3-0x0000000000390000-0x0000000000396000-memory.dmp

Filesize
24KB

Download