8412f47737b767738877f745bf59c991c2bd44a8579daa05f396791e455f490a

Analysis

max time kernel
41s
max time network
36s
platform
windows10-2004_x64
resource
win10v2004-20240221-en
resource tags

arch:x64arch:x86image:win10v2004-20240221-enlocale:en-usos:windows10-2004-x64system
submitted
24/02/2024, 02:53

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General

Target

DTC.jar
Size

24.8MB
MD5

d8b6cf8e382e00af53a10da9ce454cd6
SHA1

13d3f5a27b8d164c21007ca8c1945fc6e0b17975
SHA256

8412f47737b767738877f745bf59c991c2bd44a8579daa05f396791e455f490a
SHA512

66887928923f88573f8fc9c79cd4f1637e70143d426b8507d0701e19fe47cc2887f7198c57c1693ecf4109753ef8583b422265e3adeb08516717761aea10fca6
SSDEEP

393216:Lx1f3OT0o28resQk98DVxK15F5amSVBnFwE9WbTx1oTgvkZYhPoA6i2dk5rny:9Vk0Z8BhaVxOYnuE9kTIZ2o5i2dX

Score

7^/10

discovery

Malware Config

Signatures

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
4744	icacls.exe

Drops file in Program Files directory 12 IoCs

description	ioc	Process
File opened for modification	C:\Program Files\Java\jre-1.8\bin\ntdll.pdb	java.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\symbols\dll\ntdll.pdb	java.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\server\jvm.pdb	java.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\server\dll\jvm.pdb	java.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\dll\jvm.pdb	java.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\server\dll\ntdll.pdb	java.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\server\symbols\dll\ntdll.pdb	java.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\server\symbols\dll\jvm.pdb	java.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\jvm.pdb	java.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\symbols\dll\jvm.pdb	java.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\server\ntdll.pdb	java.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\dll\ntdll.pdb	java.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
540	java.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 540 wrote to memory of 4744	540	java.exe	88
PID 540 wrote to memory of 4744	540	java.exe	88

C:\Program Files (x86)\Common Files\Oracle\Java\javapath\java.exe
java -jar C:\Users\Admin\AppData\Local\Temp\DTC.jar
1⤵
- Drops file in Program Files directory
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:540
- 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:4744

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
e395412b7c319c22498fa63f09b9555e

SHA1
af69fe7d6e5f6bbb94f36b68111c54e5570d607e

SHA256
5a64313705881779bc406c830effe280f11f1ce90e80df68ae79078082a149bb

SHA512
2fb5a11cb4dd0474dcb8608ec58de4e7579e3bf3f0117fc90d18786c713a62c0a4a0f3e55b910e6b87f5c5c7e1daaf499f2da510ac76fcf654b4f93bb2a024eb

Download Submit
memory/540-4-0x000001A000000000-0x000001A001000000-memory.dmp

Filesize
16.0MB

Download
memory/540-11-0x000001A075AB0000-0x000001A075AB1000-memory.dmp

Filesize
4KB

Download
memory/540-20-0x000001A075AB0000-0x000001A075AB1000-memory.dmp

Filesize
4KB

Download
memory/540-27-0x000001A000280000-0x000001A000290000-memory.dmp

Filesize
64KB

Download
memory/540-26-0x000001A000000000-0x000001A001000000-memory.dmp

Filesize
16.0MB

Download
memory/540-28-0x000001A000000000-0x000001A001000000-memory.dmp

Filesize
16.0MB

Download