3378a70f8f0d863e094cbd3389d400cf8903508bd2fd528d04b96ca1583f1082

Analysis

max time kernel
149s
max time network
153s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
18-02-2024 16:44

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-02-18_464f6ba5d919a2a13be62d99c43cbcf3_cryptolocker.exe
Size

32KB
MD5

464f6ba5d919a2a13be62d99c43cbcf3
SHA1

b92e98b3ab85358f1545fc13b58e7e43b273fa36
SHA256

3378a70f8f0d863e094cbd3389d400cf8903508bd2fd528d04b96ca1583f1082
SHA512

61003056eff7d0b444b3ba5a89d90050fa5d3754656162017d74d95d106f173d940d4bb4ac3fa4df8e09e3139bc256b90c4c3e5e95af15bd6576d2b6d0d032d0
SSDEEP

384:bmM0V/YPvnr801TRoUGPh4TKt6ATt1DqgPa3s/zzoCt9/B1RU3qbSFS:b7o/2n1TCraU6GD1a4Xt9bRU62FS

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x0009000000012281-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2400	rewok.exe

Loads dropped DLL 1 IoCs

pid	Process
2020	2024-02-18_464f6ba5d919a2a13be62d99c43cbcf3_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
2020	2024-02-18_464f6ba5d919a2a13be62d99c43cbcf3_cryptolocker.exe
2400	rewok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2020 wrote to memory of 2400	2020	2024-02-18_464f6ba5d919a2a13be62d99c43cbcf3_cryptolocker.exe	28
PID 2020 wrote to memory of 2400	2020	2024-02-18_464f6ba5d919a2a13be62d99c43cbcf3_cryptolocker.exe	28
PID 2020 wrote to memory of 2400	2020	2024-02-18_464f6ba5d919a2a13be62d99c43cbcf3_cryptolocker.exe	28
PID 2020 wrote to memory of 2400	2020	2024-02-18_464f6ba5d919a2a13be62d99c43cbcf3_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-18_464f6ba5d919a2a13be62d99c43cbcf3_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-18_464f6ba5d919a2a13be62d99c43cbcf3_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2020
- 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:2400

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

Loading Replay Monitor...

Downloads

\Users\Admin\AppData\Local\Temp\rewok.exe

Filesize
33KB

MD5
6ccd6bd7df6c893f6781ffa73b2f0da0

SHA1
6557de7ef5b29da20467b298b9a70f0e5737f6e4

SHA256
18a51e0468580c605c9fd620376a94dd92d3b3a34eb4baa26a292f9191105bc9

SHA512
3d400c7adef87a1053f85b8f163335f713d52bb2513b5f32995c64d773acdc5322fefa0279448ac488a26fbd924b5fbb1488c9923cbfe3a91ebbffc6e13d0e1c

Download Submit
memory/2020-0-0x0000000000260000-0x0000000000266000-memory.dmp

Filesize
24KB

Download
memory/2020-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2020-4-0x0000000000260000-0x0000000000266000-memory.dmp

Filesize
24KB

Download
memory/2400-17-0x0000000001CC0000-0x0000000001CC6000-memory.dmp

Filesize
24KB

Download