dd038b3175bea9e1c7a4776511ec98db410ad33668ea60e80122491124071f3a

Analysis

max time kernel
162s
max time network
176s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
06-01-2024 15:35

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General

Target

UltimMC/jars/JavaCheck.jar
Size

1KB
MD5

4457cefad9b21a0e455c6ea0c4e89cc8
SHA1

fd797d3dc7fa6b079bdbdd65a1d6941ae4389dc0
SHA256

f4a620368ff0ed1a390b8689af2a11fdf1b9914e0612e6807b051b806e19880c
SHA512

9612d6049c16541e10c0c66367d22bc92578a03a1c98912dbedf0dbea261f77da34c550d32f6d2fbeff6259f6b0834cac4d6bbb049b74cdb86c84cbd5e7e0ba1

Score

7^/10

discovery

Malware Config

Signatures

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
5020	icacls.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 5048 wrote to memory of 5020	5048	java.exe	91
PID 5048 wrote to memory of 5020	5048	java.exe	91

C:\Program Files (x86)\Common Files\Oracle\Java\javapath\java.exe
java -jar C:\Users\Admin\AppData\Local\Temp\UltimMC\jars\JavaCheck.jar
1⤵
- Suspicious use of WriteProcessMemory
PID:5048
- 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:5020

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

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Downloads

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

Filesize
46B

MD5
772842bfbe4abf7e02e3d343230b8947

SHA1
a123e3f4a012ed293e2f26d0d5f540a3282af2fd

SHA256
8640c242fc8ed73be4b5f76eef643801ac73b55437e78f259739778f39f63857

SHA512
7b1b582fac0915a1f273bc2b288190d0118c90e7bc2622e8efcacf727e959e0cbd62532bd92bc5ac3373dccc40c12ef703a37448961afc13ec11ff1c2f4a2586

Download Submit
memory/5048-4-0x000002D8183B0000-0x000002D8193B0000-memory.dmp

Filesize
16.0MB

Download
memory/5048-12-0x000002D816B20000-0x000002D816B21000-memory.dmp

Filesize
4KB

Download