6a4423b255e84f2d1ca58a153bd423517a5c7013e719061941416760f7ef49d3

Analysis

max time kernel
576s
max time network
628s
platform
windows10-2004_x64
resource
win10v2004-20240412-en
resource tags

arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
submitted
17-04-2024 15:08

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General

Target

Nurik/client_1_16_5/libraries/fastutil-8.5.9.jar
Size

22.3MB
MD5

a20da3754d5f4b8f297f9274f1843caa
SHA1

bb7ea75ecdb216654237830b3a96d87ad91f8cc5
SHA256

9578bf2a1700cf20d21746a2ee89e57ba1abbd37fa9feda68ff5e9a28473a7f9
SHA512

649bc8676b3327cfd46c6461dde4242848f1afa4ef0fbc719fdab32c4b222e513db72dc4013d9e2a38f30bca33752ee7caeedafed4faa11e28c9492d67c824fb
SSDEEP

393216:oxISXki6cwdNlKRhde8ioG24RRU0TA+nw4M4oW2PkLzHhLMRILG0W98Qzqp:oxIkk95K7driod4RX/nR12sjLAuQzY

Score

7^/10

discovery

Malware Config

Signatures

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
4604	icacls.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 1384 wrote to memory of 4604	1384	java.exe	87
PID 1384 wrote to memory of 4604	1384	java.exe	87

C:\Program Files (x86)\Common Files\Oracle\Java\javapath\java.exe
java -jar C:\Users\Admin\AppData\Local\Temp\Nurik\client_1_16_5\libraries\fastutil-8.5.9.jar
1⤵
- Suspicious use of WriteProcessMemory
PID:1384
- C:\Windows\system32\icacls.exe
  C:\Windows\system32\icacls.exe C:\ProgramData\Oracle\Java\.oracle_jre_usage /grant "everyone":(OI)(CI)M
  2⤵
  - Modifies file permissions
  PID:4604

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

File and Directory Permissions Modification

T1222

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\ProgramData\Oracle\Java\.oracle_jre_usage\3903daac9bc4a3b7.timestamp

Filesize
46B

MD5
19677ecc4492ec7039c4eab65cc6c5fd

SHA1
f7af4cdd183361736fa5e067e7de84f8e9a96eea

SHA256
bc42823ba6bd7313fd0bcb2e2bbe7e08feb646635dbdd2bd25c0cf15076880a1

SHA512
ca873d5e640622f7750f14e04a8c96b500b92627079c767e69ff232aed92be33f2551182f1b33ba0dc85b3670ed4fd549a4531c4faef48ba71af99197c618225

Download Submit
memory/1384-4-0x000002186C460000-0x000002186D460000-memory.dmp

Filesize
16.0MB

Download
memory/1384-12-0x000002186AC90000-0x000002186AC91000-memory.dmp

Filesize
4KB

Download
memory/1384-13-0x000002186C460000-0x000002186D460000-memory.dmp

Filesize
16.0MB

Download