22430b36b0dd8b1d7ced224972e1c916c9cfd5bd598db00e9f017b5b6e6c2822

Analysis

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

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
19/03/2024, 04:31

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General

Target

2024-03-19_40424fe995e29c050146622bdbe77666_cryptolocker.exe
Size

40KB
MD5

40424fe995e29c050146622bdbe77666
SHA1

3c612c23fa7c5d9aa6462b192459d9be43c24a9e
SHA256

22430b36b0dd8b1d7ced224972e1c916c9cfd5bd598db00e9f017b5b6e6c2822
SHA512

137e6447a04c81e68c8d2753a7cd76af1756bc43a0417630ce96c15300088d349641b0e7a7b6c102ecb3fc9f4bf34a8e7c473e9af180866a30d153c6f7f1cafd
SSDEEP

768:V6LsoEEeegiZPvEhHSG+gDYQtOOtEvwDpj/MLam5axRVZw:V6QFElP6n+gMQMOtEvwDpjyaYaLw

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c000000012328-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000c000000012328-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2552	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2876	2024-03-19_40424fe995e29c050146622bdbe77666_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 2876 wrote to memory of 2552	2876	2024-03-19_40424fe995e29c050146622bdbe77666_cryptolocker.exe	28
PID 2876 wrote to memory of 2552	2876	2024-03-19_40424fe995e29c050146622bdbe77666_cryptolocker.exe	28
PID 2876 wrote to memory of 2552	2876	2024-03-19_40424fe995e29c050146622bdbe77666_cryptolocker.exe	28
PID 2876 wrote to memory of 2552	2876	2024-03-19_40424fe995e29c050146622bdbe77666_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-19_40424fe995e29c050146622bdbe77666_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-19_40424fe995e29c050146622bdbe77666_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2876
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2552

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\asih.exe

Filesize
41KB

MD5
6f207c1b4c3eff081a09ffdd5b4b9138

SHA1
9b4c5b5af1bcefaef663936addde4db003409144

SHA256
57c94abd9bdbe79f9a82b083343847a33d61bcb5425d785eae8af8ff77400596

SHA512
fb6e69ac453ec9605e7dc65ee3a10c28b453b213f64d4d590742eca66f5b0cdb032bd4bd5d00eef9c0c5533f79ebb086606b02bf820892d285aa7a19d676d9e7

Download Submit
memory/2552-15-0x0000000000490000-0x0000000000496000-memory.dmp

Filesize
24KB

Download
memory/2552-20-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2876-0-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/2876-1-0x0000000000460000-0x0000000000466000-memory.dmp

Filesize
24KB

Download
memory/2876-8-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download