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 UTC

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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

DNS

spinistry.com

rewok.exe

Remote address:

8.8.8.8:53

Request

spinistry.com

IN A

Response

spinistry.com

IN A

64.98.135.121

64.98.135.121:443

spinistry.com

rewok.exe

152 B
3
64.98.135.121:443

spinistry.com

rewok.exe

152 B
3
64.98.135.121:443

spinistry.com

rewok.exe

152 B
3
64.98.135.121:443

spinistry.com

rewok.exe

152 B
3
64.98.135.121:443

spinistry.com

rewok.exe

152 B
3
64.98.135.121:443

spinistry.com

rewok.exe

152 B
3
64.98.135.121:443

spinistry.com

rewok.exe

152 B
3
64.98.135.121:443

spinistry.com

rewok.exe

52 B
1

8.8.8.8:53

spinistry.com

dns

rewok.exe

59 B
75 B
1
1

DNS Request

spinistry.com

DNS Response

64.98.135.121

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
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