14c91922318520021b2b6477caf6d9f777046237464991065398eab2434e5064

Analysis

max time kernel
150s
max time network
154s
platform
windows7_x64
resource
win7-20240215-en
resource tags

arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
submitted
21-05-2024 05:07

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General

Target

2024-05-21_8ce69152a7aa7deffde0ff619b1d5d34_cryptolocker.exe
Size

55KB
MD5

8ce69152a7aa7deffde0ff619b1d5d34
SHA1

b58bd43d1b714d3d2eaebe6e70f0233634e74d02
SHA256

14c91922318520021b2b6477caf6d9f777046237464991065398eab2434e5064
SHA512

920e74cca8b5d17ce2225268b8e27b42b06da276d139fa97827546f5adf61097af389ac346dd77f901d4f560bc65f5c29d344b7885e7ffa7c3219228a3f312e8
SSDEEP

768:bIDOw9UiaCHfjnE0Sfa7ilR0p9u6p4ICNBCXK9XbTb8puaH:bIDOw9a0DwitDZzcTLaH

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c00000001315b-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2524	lossy.exe

Loads dropped DLL 1 IoCs

pid	Process
2972	2024-05-21_8ce69152a7aa7deffde0ff619b1d5d34_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 2972 wrote to memory of 2524	2972	2024-05-21_8ce69152a7aa7deffde0ff619b1d5d34_cryptolocker.exe	28
PID 2972 wrote to memory of 2524	2972	2024-05-21_8ce69152a7aa7deffde0ff619b1d5d34_cryptolocker.exe	28
PID 2972 wrote to memory of 2524	2972	2024-05-21_8ce69152a7aa7deffde0ff619b1d5d34_cryptolocker.exe	28
PID 2972 wrote to memory of 2524	2972	2024-05-21_8ce69152a7aa7deffde0ff619b1d5d34_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-21_8ce69152a7aa7deffde0ff619b1d5d34_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-21_8ce69152a7aa7deffde0ff619b1d5d34_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2972
- C:\Users\Admin\AppData\Local\Temp\lossy.exe
  "C:\Users\Admin\AppData\Local\Temp\lossy.exe"
  2⤵
  - Executes dropped EXE
  PID:2524

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\lossy.exe

Filesize
56KB

MD5
2a7160e03f5f1981d322bf27d1f3886e

SHA1
5a48c79b7b6ab648401c4a6747eb17351aa82ffc

SHA256
2f234dc39ed94446e59814ad52412a3dc27c7046cd83277f917da72da1030c4d

SHA512
42eed33c28344bd0076f3231e1aef253e63b5f8ace1ac5f88aa63f817494ebcda5eecb027962870d40d55e1aff973346148e97846efef5ec964dfb61b8fe1a37

Download Submit
memory/2524-15-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download
memory/2524-22-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2972-0-0x0000000000330000-0x0000000000336000-memory.dmp

Filesize
24KB

Download
memory/2972-1-0x0000000000330000-0x0000000000336000-memory.dmp

Filesize
24KB

Download
memory/2972-2-0x0000000001C90000-0x0000000001C96000-memory.dmp

Filesize
24KB

Download