3aa74d9f02b146b294b6a86bda778c5882a196d4907285301932fc47aa3ce1e9

Analysis

max time kernel
150s
max time network
154s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
28/01/2024, 04:26

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General

Target

2024-01-28_23c2ddb6234cf5cebd01b5f0497bdeae_cryptolocker.exe
Size

37KB
MD5

23c2ddb6234cf5cebd01b5f0497bdeae
SHA1

998b5267983152221ab099ed2e741477b29da019
SHA256

3aa74d9f02b146b294b6a86bda778c5882a196d4907285301932fc47aa3ce1e9
SHA512

5d82aa2b4eaea8fac07466f7ef94ed40d2830a189e055684352f9d6c2d64b504e6a040e13709acc9d3fb5db73d1b6ea79a51997fb2d661f25266df81c464b456
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBaac4HWb:X6QFElP6n+gJQMOtEvwDpjBsYWb

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000d00000001231d-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000d00000001231d-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
1960	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2164	2024-01-28_23c2ddb6234cf5cebd01b5f0497bdeae_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 2164 wrote to memory of 1960	2164	2024-01-28_23c2ddb6234cf5cebd01b5f0497bdeae_cryptolocker.exe	28
PID 2164 wrote to memory of 1960	2164	2024-01-28_23c2ddb6234cf5cebd01b5f0497bdeae_cryptolocker.exe	28
PID 2164 wrote to memory of 1960	2164	2024-01-28_23c2ddb6234cf5cebd01b5f0497bdeae_cryptolocker.exe	28
PID 2164 wrote to memory of 1960	2164	2024-01-28_23c2ddb6234cf5cebd01b5f0497bdeae_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-01-28_23c2ddb6234cf5cebd01b5f0497bdeae_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-28_23c2ddb6234cf5cebd01b5f0497bdeae_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2164
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:1960

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
37KB

MD5
f58fb664910acb80c174ff9eb66ab2aa

SHA1
8baf45e8c330075057680a45ba259ce9d220e179

SHA256
965ac35b1799e98e08a2adc09dc33a5f28fb433e8d12e4cbe9b26f3681da4909

SHA512
a2efb3781a1d675435910fdd8fc1cc7f9d516b4dd349be17ac2f685e6ae58ec4eb1f58545880fa29bfa40df3a753710421f3f392208c9c29b0964150f93648b4

Download Submit
memory/1960-16-0x0000000000490000-0x0000000000496000-memory.dmp

Filesize
24KB

Download
memory/1960-15-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2164-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2164-2-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2164-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download