53473d7feec823f26808f2af3ff0e304404adbd6f0c0fdd246018a4223ad4700

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
22-02-2024 19:28

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General

Target

2024-02-22_236fa588491c796fbb6f502cfe03ffe5_cryptolocker.exe
Size

36KB
MD5

236fa588491c796fbb6f502cfe03ffe5
SHA1

d02b2329ef880c7d608f826554c2f66a93e51c38
SHA256

53473d7feec823f26808f2af3ff0e304404adbd6f0c0fdd246018a4223ad4700
SHA512

790f5929dcf523d08ec2441c94fa4fdb5aaf52ddfe3408a9fd2e08f077fd4f42cc51aa1756b8fdb7accf8031086decf8f7f66d1499357d295201f2d4e766973f
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBjb1iIJSFlWvmJn:X6QFElP6n+gJQMOtEvwDpjBngHnPn

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b0000000122b8-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000b0000000122b8-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
1156	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2344	2024-02-22_236fa588491c796fbb6f502cfe03ffe5_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 2344 wrote to memory of 1156	2344	2024-02-22_236fa588491c796fbb6f502cfe03ffe5_cryptolocker.exe	28
PID 2344 wrote to memory of 1156	2344	2024-02-22_236fa588491c796fbb6f502cfe03ffe5_cryptolocker.exe	28
PID 2344 wrote to memory of 1156	2344	2024-02-22_236fa588491c796fbb6f502cfe03ffe5_cryptolocker.exe	28
PID 2344 wrote to memory of 1156	2344	2024-02-22_236fa588491c796fbb6f502cfe03ffe5_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-22_236fa588491c796fbb6f502cfe03ffe5_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-22_236fa588491c796fbb6f502cfe03ffe5_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2344
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:1156

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
36KB

MD5
ab9930181d11493e227a96edad790d4a

SHA1
878299c55770b9593acd54fc666ba218b89376ba

SHA256
b4a58aa201cc90ac371dafb0ebea4efeb5c5630765cad69524a22057be3f444f

SHA512
0e3bfc36b94aeb3aea07b5c3d162cdfec53bbc3692ef96d9e80798e3aa0bfe274d695a6dc190e8abac329b74c0af166ade602d74ff24ca60013bba7a3d95e5e1

Download Submit
memory/1156-15-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/1156-16-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2344-0-0x0000000000460000-0x0000000000466000-memory.dmp

Filesize
24KB

Download
memory/2344-1-0x00000000004A0000-0x00000000004A6000-memory.dmp

Filesize
24KB

Download
memory/2344-8-0x0000000000460000-0x0000000000466000-memory.dmp

Filesize
24KB

Download