0a816fc4dee585fe34a2b928afb9c7868854e9ee1b825c976c77aabb2ff6c167

Analysis

max time kernel
149s
max time network
155s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
22-02-2024 22:27

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-02-22_3de34cbc7b686048f95c5e855a17479a_cryptolocker.exe
Size

29KB
MD5

3de34cbc7b686048f95c5e855a17479a
SHA1

91adb6e34b66b9d3ee64f45466ce96c63edc59e3
SHA256

0a816fc4dee585fe34a2b928afb9c7868854e9ee1b825c976c77aabb2ff6c167
SHA512

d072bd190fb091ef62005614b1f0b645500bbbf646f7fc7bf2ce76d1175d8253004c1f394247bcef6405c10f2e372e9c06f249d4a7037a0c3a4bcc0441a4c525
SSDEEP

384:bA74uGLLQRcsdeQ72ngEr4K7YmE8j60nrlwfjDUr766SJ5STBxVG:bA74zYcgT/Ekd0ryfjQRSnWBxg

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000900000001223f-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2936	hasfj.exe

Loads dropped DLL 1 IoCs

pid	Process
1996	2024-02-22_3de34cbc7b686048f95c5e855a17479a_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 1996 wrote to memory of 2936	1996	2024-02-22_3de34cbc7b686048f95c5e855a17479a_cryptolocker.exe	28
PID 1996 wrote to memory of 2936	1996	2024-02-22_3de34cbc7b686048f95c5e855a17479a_cryptolocker.exe	28
PID 1996 wrote to memory of 2936	1996	2024-02-22_3de34cbc7b686048f95c5e855a17479a_cryptolocker.exe	28
PID 1996 wrote to memory of 2936	1996	2024-02-22_3de34cbc7b686048f95c5e855a17479a_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-22_3de34cbc7b686048f95c5e855a17479a_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-22_3de34cbc7b686048f95c5e855a17479a_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1996
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:2936

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\hasfj.exe

Filesize
29KB

MD5
83bb02c288637e23004acd88e8317943

SHA1
8aaa6749e346a17acb8cbda3fdaaa3e393ead49b

SHA256
9048b429fb8f50aad548cca79eb53a445fee865beff687f9bee6176ec15f3943

SHA512
63d6b9f0e0866262e2221b48d446ad981e59d9b08df78531d87fc624611f6e744e2bedb2e1823e7e629711cd708d423658f9014b3aca98eb100f587b6ca9307f

Download Submit
memory/1996-0-0x00000000002F0000-0x00000000002F6000-memory.dmp

Filesize
24KB

Download
memory/1996-1-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download
memory/1996-5-0x00000000002F0000-0x00000000002F6000-memory.dmp

Filesize
24KB

Download
memory/2936-15-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/2936-22-0x00000000004B0000-0x00000000004B6000-memory.dmp

Filesize
24KB

Download