494dd97d46f7c8ec68b756c23529c84f0920c6b9fdc6218d1b6990d22ac883c6

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
26-03-2024 02:24

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General

Target

2024-03-26_031f4da07ee5c365cc8fdcfb543075c2_cryptolocker.exe
Size

34KB
MD5

031f4da07ee5c365cc8fdcfb543075c2
SHA1

294c0c524c23f0fd1722e61ff2142a7b9987adfb
SHA256

494dd97d46f7c8ec68b756c23529c84f0920c6b9fdc6218d1b6990d22ac883c6
SHA512

ef9b3189d1064061e06b07fbc43e55d40cdce91492de16dea3d32f8fdd645db49dfef51a3670819b0454478fd9d5afc2d7d9c0613ca56883090a3a01c5145631
SSDEEP

384:bA74uGLLQRcsdeQ72ngEr4K7YmE8j60nrlwfjDUr766SJXTQke8SEMMG:bA74zYcgT/Ekd0ryfjQRSNhpSFr

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000012251-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2520	hasfj.exe

Loads dropped DLL 1 IoCs

pid	Process
2340	2024-03-26_031f4da07ee5c365cc8fdcfb543075c2_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 2340 wrote to memory of 2520	2340	2024-03-26_031f4da07ee5c365cc8fdcfb543075c2_cryptolocker.exe	28
PID 2340 wrote to memory of 2520	2340	2024-03-26_031f4da07ee5c365cc8fdcfb543075c2_cryptolocker.exe	28
PID 2340 wrote to memory of 2520	2340	2024-03-26_031f4da07ee5c365cc8fdcfb543075c2_cryptolocker.exe	28
PID 2340 wrote to memory of 2520	2340	2024-03-26_031f4da07ee5c365cc8fdcfb543075c2_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-26_031f4da07ee5c365cc8fdcfb543075c2_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-26_031f4da07ee5c365cc8fdcfb543075c2_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2340
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:2520

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\hasfj.exe

Filesize
35KB

MD5
55e686695ac6e2ceac185d6c9351041a

SHA1
41d34cf30369e09e17d8af6f2b2986b705340c68

SHA256
e0bbdd2d617669b2415b14a2606a33a0dea76e7ea55c18687d05ea4b844647c6

SHA512
9b7aae2988a5c5977952719fcd44ab5d8e730807e8785793593055ca0bba978d2e1d250a97649de49fea4c945be77d765178ecd9ace82d647a20e55240397c96

Download Submit
memory/2340-0-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/2340-1-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download
memory/2340-8-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/2520-15-0x00000000003A0000-0x00000000003A6000-memory.dmp

Filesize
24KB

Download
memory/2520-22-0x0000000000390000-0x0000000000396000-memory.dmp

Filesize
24KB

Download