03aa63579d2ba40766f3afe354e611c655662cb63f922120663f9ebe505047dc

Analysis

max time kernel
146s
max time network
150s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
10-05-2024 03:43

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General

Target

2024-05-10_52323354b98f7005bf2cafb42e133218_cryptolocker.exe
Size

79KB
MD5

52323354b98f7005bf2cafb42e133218
SHA1

34a05ed55a7f6f0d7186417c7d7bde054eb074f9
SHA256

03aa63579d2ba40766f3afe354e611c655662cb63f922120663f9ebe505047dc
SHA512

52904781cb78c68ebfd2616d2b648f56a66aad4acd4051b7e74a48f9333c2e43fff11a6140aa679b158aa77927d326c39613e10d2dfc3b877a3adc165d4d9cf0
SSDEEP

1536:ZzFbxmLPWQMOtEvwDpj386Sj/WprgJN6tZdOyJ3KEWT+G:ZVxkGOtEvwDpjcaxQ

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000d000000013309-11.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2484	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
1724	2024-05-10_52323354b98f7005bf2cafb42e133218_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 1724 wrote to memory of 2484	1724	2024-05-10_52323354b98f7005bf2cafb42e133218_cryptolocker.exe	28
PID 1724 wrote to memory of 2484	1724	2024-05-10_52323354b98f7005bf2cafb42e133218_cryptolocker.exe	28
PID 1724 wrote to memory of 2484	1724	2024-05-10_52323354b98f7005bf2cafb42e133218_cryptolocker.exe	28
PID 1724 wrote to memory of 2484	1724	2024-05-10_52323354b98f7005bf2cafb42e133218_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-10_52323354b98f7005bf2cafb42e133218_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-10_52323354b98f7005bf2cafb42e133218_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1724
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2484

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
79KB

MD5
ee92fefadd931cf72ed61ee88d2453ea

SHA1
506eab33443499faf99b1e4ae9110eda9a689e26

SHA256
1a3875e852fb78e5fa1260d9b4317860b2df5e606340d98ba911e3ca15307e4d

SHA512
cb4427c10e4d7b74739cfaed7ea3a440d4885f5a33773b6f6444395e969158e041d39387d60ecba07ea4384d9e4c1c4e6b3203c31712fd308f5957478132e29e

Download Submit
memory/1724-0-0x0000000000440000-0x0000000000446000-memory.dmp

Filesize
24KB

Download
memory/1724-9-0x0000000000440000-0x0000000000446000-memory.dmp

Filesize
24KB

Download
memory/1724-8-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download
memory/1724-1-0x0000000000480000-0x0000000000486000-memory.dmp

Filesize
24KB

Download
memory/2484-24-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2484-23-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download
memory/2484-16-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

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