d0e475d7fb52b926c0029060700792beda777dbd6260dfec536352b2045ac93e

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
10/05/2024, 04:11

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General

Target

2024-05-10_d7b31cace6685124fa9803a6d331e5e8_cryptolocker.exe
Size

44KB
MD5

d7b31cace6685124fa9803a6d331e5e8
SHA1

eb66ca1d44384c54c61e0368e5fa3fbe14999b56
SHA256

d0e475d7fb52b926c0029060700792beda777dbd6260dfec536352b2045ac93e
SHA512

db891780128334889b9f7412a0ed464ab98e45e1ed80c973335a6f2599b95fafcb44102aa685c60b115a2a507a046162ba32cfffa4cc922a5dcaa82154bb0275
SSDEEP

384:btBYQg/WIEhUCSNyepEjYnDOAlzVol6U/zzo+tkq4XDIwNiJXxXunrkwIxZWQpy8:btB9g/WItCSsAGjX7e9N0hunrknljKrc

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000014457-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2432	gewos.exe

Loads dropped DLL 1 IoCs

pid	Process
2924	2024-05-10_d7b31cace6685124fa9803a6d331e5e8_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
2924	2024-05-10_d7b31cace6685124fa9803a6d331e5e8_cryptolocker.exe
2432	gewos.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2924 wrote to memory of 2432	2924	2024-05-10_d7b31cace6685124fa9803a6d331e5e8_cryptolocker.exe	28
PID 2924 wrote to memory of 2432	2924	2024-05-10_d7b31cace6685124fa9803a6d331e5e8_cryptolocker.exe	28
PID 2924 wrote to memory of 2432	2924	2024-05-10_d7b31cace6685124fa9803a6d331e5e8_cryptolocker.exe	28
PID 2924 wrote to memory of 2432	2924	2024-05-10_d7b31cace6685124fa9803a6d331e5e8_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-10_d7b31cace6685124fa9803a6d331e5e8_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-10_d7b31cace6685124fa9803a6d331e5e8_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2924
- C:\Users\Admin\AppData\Local\Temp\gewos.exe
  "C:\Users\Admin\AppData\Local\Temp\gewos.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of UnmapMainImage
  PID:2432

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\gewos.exe

Filesize
44KB

MD5
4326e5b6f754a74a21a901c9ee971962

SHA1
a394e06e35983230866a23b917866db9dadda0bf

SHA256
76d9324e469dc9b35c795a06785f19e82716e1da00930c0e99e8a8ca475a354e

SHA512
3f78886978cf8866361d724d52699c2f99790f9939ea5157389c01b6a5a6194425fd584b94568fbd3c8561233f731be3979968c72e3903036f2657558bd40fad

Download Submit
memory/2432-23-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/2924-0-0x0000000000430000-0x0000000000436000-memory.dmp

Filesize
24KB

Download
memory/2924-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2924-1-0x0000000000430000-0x0000000000436000-memory.dmp

Filesize
24KB

Download