e6ca5fc7bc5b0bd35d7996e7b2fd9f42b624a4c62bd8d725b9bf2c95c4db5de4

Analysis

max time kernel
148s
max time network
152s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
22-04-2024 19:39

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-04-22_b45720c69116c2f8d517c5d51a8d2fae_cryptolocker.exe
Size

60KB
MD5

b45720c69116c2f8d517c5d51a8d2fae
SHA1

a4220a9a2a31e5f1c1f45f2ea88833617235efdf
SHA256

e6ca5fc7bc5b0bd35d7996e7b2fd9f42b624a4c62bd8d725b9bf2c95c4db5de4
SHA512

4b00cfc107b5fe5856c0e051e8e80457cced7f422cc0c8f37b5820db0610b32a825d0a2f9d1be83ea77d62d0e6888cc8e63d206adee317dd8365c442cf6c613a
SSDEEP

1536:X6QFElP6n+gJQMOtEvwDpjBccD2RuoNmuBLZ/xXcS:X6a+SOtEvwDpjBrOR

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c00000001225d-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000c00000001225d-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2288	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2176	2024-04-22_b45720c69116c2f8d517c5d51a8d2fae_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 2176 wrote to memory of 2288	2176	2024-04-22_b45720c69116c2f8d517c5d51a8d2fae_cryptolocker.exe	28
PID 2176 wrote to memory of 2288	2176	2024-04-22_b45720c69116c2f8d517c5d51a8d2fae_cryptolocker.exe	28
PID 2176 wrote to memory of 2288	2176	2024-04-22_b45720c69116c2f8d517c5d51a8d2fae_cryptolocker.exe	28
PID 2176 wrote to memory of 2288	2176	2024-04-22_b45720c69116c2f8d517c5d51a8d2fae_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-22_b45720c69116c2f8d517c5d51a8d2fae_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-22_b45720c69116c2f8d517c5d51a8d2fae_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2176
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2288

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\asih.exe

Filesize
61KB

MD5
17bfa9411e2a5a778ccb798c9127012b

SHA1
978f9db98b260e90fe5c67da562ecec9e0172989

SHA256
32f3361439f8ec9117259fb5a371dee7663fa33d132bf8724b17c07a4963ce3e

SHA512
b2f15ce436b8cee78b6ddccd800d92219d6c349114cae1b00594aa9502269e6e8592fe385897afd3e5f1fd4707372f0c7f55718035dd5fc3901e99cb6a87fc47

Download Submit
memory/2176-0-0x0000000000250000-0x0000000000256000-memory.dmp

Filesize
24KB

Download
memory/2176-1-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/2176-8-0x0000000000250000-0x0000000000256000-memory.dmp

Filesize
24KB

Download
memory/2288-15-0x00000000002D0000-0x00000000002D6000-memory.dmp

Filesize
24KB

Download
memory/2288-22-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download