2da89a8f2fdb4550977a7f8482a36f4f81bd1e8a9d3dc7a61a0e91241cf8d9c1

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
20/05/2024, 22:21

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General

Target

2024-05-20_109232901363df5d363446c62b93f6dd_cryptolocker.exe
Size

37KB
MD5

109232901363df5d363446c62b93f6dd
SHA1

ecb002cb680f785cdc690ad0e1a131cf4148fa58
SHA256

2da89a8f2fdb4550977a7f8482a36f4f81bd1e8a9d3dc7a61a0e91241cf8d9c1
SHA512

2e72b81133f612df864ba35bbd4a96a3fb7b0df68abf12511182e1a4f30941a8a4537cd00fcae77210da2992b9ae13b8be3de2341728e0eb52e338fb13c3e610
SSDEEP

768:fTz7y3lhsT+hs1SQtOOtEvwDpjfAu9+40dZ:fT+hsMQMOtEvwDpjoIHyZ

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000015d61-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000015d61-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2044	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
3044	2024-05-20_109232901363df5d363446c62b93f6dd_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 3044 wrote to memory of 2044	3044	2024-05-20_109232901363df5d363446c62b93f6dd_cryptolocker.exe	28
PID 3044 wrote to memory of 2044	3044	2024-05-20_109232901363df5d363446c62b93f6dd_cryptolocker.exe	28
PID 3044 wrote to memory of 2044	3044	2024-05-20_109232901363df5d363446c62b93f6dd_cryptolocker.exe	28
PID 3044 wrote to memory of 2044	3044	2024-05-20_109232901363df5d363446c62b93f6dd_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-20_109232901363df5d363446c62b93f6dd_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-20_109232901363df5d363446c62b93f6dd_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:3044
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2044

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\misid.exe

Filesize
37KB

MD5
6d4be697267269660ea0f79f5442115a

SHA1
94019f3cdcf9f0bbe074ff9826908baa25fba5b9

SHA256
7a54847123f61fe5bff13532973bf17124d52dbfbcea9c276ce43a05e9bf3974

SHA512
ed3211397148645cc1987983bbb8fee4db6f714c40a2f4fccde7bcb1adc29c9852ad726ae1e737cf8bbcde39e359451709ab122c39cede6983870dfd150484c8

Download Submit
memory/2044-15-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download
memory/2044-22-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/3044-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/3044-8-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/3044-1-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download