0f018c295358f400ca87b53aa534248247c59fd8729571a2800f8e7d0e0a3816

Analysis

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

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
28/01/2024, 12:39

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General

Target

2024-01-28_7b1ad8a2f2c111f2220a2aa0e63c2ca1_cryptolocker.exe
Size

35KB
MD5

7b1ad8a2f2c111f2220a2aa0e63c2ca1
SHA1

2712be799b7dec70d3b6439aa32b6ebc55684bf3
SHA256

0f018c295358f400ca87b53aa534248247c59fd8729571a2800f8e7d0e0a3816
SHA512

e594ef64b1ccc9c5e9384c2421aaf5ce47efa0b2d0cf8c8357ab5283301caa37da325e207aea47d182872d5afdb2a462e4d99f9d02dbe7560b8e1a07544274a5
SSDEEP

384:bA74uGLLQRcsdeQ72ngEr4K7YmE8j60nrlwfjDUgIunIVpeNs23mAA6lWVNs:bA74zYcgT/Ekd0ryfjPIunqpeNswmT3s

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c00000001233b-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2756	hasfj.exe

Loads dropped DLL 1 IoCs

pid	Process
2128	2024-01-28_7b1ad8a2f2c111f2220a2aa0e63c2ca1_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 2128 wrote to memory of 2756	2128	2024-01-28_7b1ad8a2f2c111f2220a2aa0e63c2ca1_cryptolocker.exe	28
PID 2128 wrote to memory of 2756	2128	2024-01-28_7b1ad8a2f2c111f2220a2aa0e63c2ca1_cryptolocker.exe	28
PID 2128 wrote to memory of 2756	2128	2024-01-28_7b1ad8a2f2c111f2220a2aa0e63c2ca1_cryptolocker.exe	28
PID 2128 wrote to memory of 2756	2128	2024-01-28_7b1ad8a2f2c111f2220a2aa0e63c2ca1_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-01-28_7b1ad8a2f2c111f2220a2aa0e63c2ca1_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-28_7b1ad8a2f2c111f2220a2aa0e63c2ca1_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2128
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:2756

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
11707203123ef4a640b7095391e3a5ab

SHA1
a36f883ca580442899a79c2ff37a6da1f381306e

SHA256
bd6a390295ab1c7cc5a432db307cc4125b16aba22c655ca313f660a31f85e9ae

SHA512
0364ae61c8730e19a96f6fc8256a726ec49cd4813152b54ad84eef5ca035a6cdbfce284c30605afdd26940916b0322e1857a65e72a419dd65bef3928eb75b112

Download Submit
memory/2128-0-0x00000000002D0000-0x00000000002D6000-memory.dmp

Filesize
24KB

Download
memory/2128-1-0x0000000000440000-0x0000000000446000-memory.dmp

Filesize
24KB

Download
memory/2128-8-0x00000000002D0000-0x00000000002D6000-memory.dmp

Filesize
24KB

Download
memory/2756-15-0x0000000001CB0000-0x0000000001CB6000-memory.dmp

Filesize
24KB

Download
memory/2756-17-0x0000000001CA0000-0x0000000001CA6000-memory.dmp

Filesize
24KB

Download