70b7a95c367f712ee990d171da3365c310f169e9bc7190ab2c1c64f7e657630f

Analysis

max time kernel
90s
max time network
96s
platform
windows11-21h2_x64
resource
win11-20231215-en
resource tags

arch:x64arch:x86image:win11-20231215-enlocale:en-usos:windows11-21h2-x64system
submitted
22/12/2023, 15:47

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General

Target

vivecraft-1.16.5-jrbudda-NONVR-7-8b-installer (1).exe
Size

2.7MB
MD5

34593f04779ea997e964be6f9bb5e42d
SHA1

3a3a6c5df6a9909f3f761606a129d69a0173cafc
SHA256

70b7a95c367f712ee990d171da3365c310f169e9bc7190ab2c1c64f7e657630f
SHA512

30f761ea6dfc092e93a5b61540e5a6fd4fa5a5d613066b172defd0fc84eb5849b6bf1fb199524ba3edc88209b140dba7a7188e9b131cb40ca305c75d1dcf96f7
SSDEEP

49152:Uufu9pEFBdsBjgDWnq4xrsnVzpRk2UArlg5x4SMlPagFdIrmGuT+ge8hwvTAv4BT:uczIIWTrsbRHdg5magEn8mvEvZHMH

Score

7^/10

discovery

Malware Config

Signatures

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
2376	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\dll\ntdll.pdb	javaw.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\server\jvm.pdb	javaw.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\server\dll\jvm.pdb	javaw.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\jvm.pdb	javaw.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\symbols\dll\jvm.pdb	javaw.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\server\ntdll.pdb	javaw.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\ntdll.pdb	javaw.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\server\symbols\dll\jvm.pdb	javaw.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\dll\jvm.pdb	javaw.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\server\dll\ntdll.pdb	javaw.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\server\symbols\dll\ntdll.pdb	javaw.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\symbols\dll\ntdll.pdb	javaw.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
416	javaw.exe
416	javaw.exe
416	javaw.exe
416	javaw.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 3472 wrote to memory of 416	3472	vivecraft-1.16.5-jrbudda-NONVR-7-8b-installer (1).exe	78
PID 3472 wrote to memory of 416	3472	vivecraft-1.16.5-jrbudda-NONVR-7-8b-installer (1).exe	78
PID 416 wrote to memory of 2376	416	javaw.exe	79
PID 416 wrote to memory of 2376	416	javaw.exe	79

C:\Users\Admin\AppData\Local\Temp\vivecraft-1.16.5-jrbudda-NONVR-7-8b-installer (1).exe
"C:\Users\Admin\AppData\Local\Temp\vivecraft-1.16.5-jrbudda-NONVR-7-8b-installer (1).exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:3472
- C:\Program Files\Java\jre-1.8\bin\javaw.exe
  "C:\Program Files\Java\jre-1.8\bin\javaw.exe" -jar "C:\Users\Admin\AppData\Local\Temp\vivecraft-1.16.5-jrbudda-NONVR-7-8b-installer (1).exe" -Djava.net.preferIPv4Stack=true
  2⤵
  - Drops file in Program Files directory
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:416
- - C:\Windows\system32\icacls.exe
    C:\Windows\system32\icacls.exe C:\ProgramData\Oracle\Java\.oracle_jre_usage /grant "everyone":(OI)(CI)M
    3⤵
    - Modifies file permissions
    PID:2376

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
5336f89122bed47e228c890c8d6bea33

SHA1
13d03ec47eceb2cbfc7c7eebb68c14b35b5f151a

SHA256
aeb3c89b361471066bfe208854d135e416644e4432b062c27f94eaf80d8dce44

SHA512
00d0f0e1853bc106d7208388a403943443fca559eb1ce6c801269b8bdc6cef2c605c607b270bffa6efd64ecc4f78cb0b71632be8b488e4d900039807afd3089e

Download Submit
memory/416-42-0x000002507B5E0000-0x000002507B5E1000-memory.dmp

Filesize
4KB

Download
memory/416-54-0x0000025000000000-0x0000025001000000-memory.dmp

Filesize
16.0MB

Download
memory/416-16-0x000002507B5E0000-0x000002507B5E1000-memory.dmp

Filesize
4KB

Download
memory/416-33-0x000002507B5E0000-0x000002507B5E1000-memory.dmp

Filesize
4KB

Download
memory/416-36-0x0000025000000000-0x0000025001000000-memory.dmp

Filesize
16.0MB

Download
memory/416-68-0x0000025000000000-0x0000025001000000-memory.dmp

Filesize
16.0MB

Download
memory/416-49-0x000002507B5E0000-0x000002507B5E1000-memory.dmp

Filesize
4KB

Download
memory/416-5-0x0000025000000000-0x0000025001000000-memory.dmp

Filesize
16.0MB

Download
memory/416-56-0x0000025000000000-0x0000025001000000-memory.dmp

Filesize
16.0MB

Download
memory/416-58-0x0000025000000000-0x0000025001000000-memory.dmp

Filesize
16.0MB

Download
memory/416-59-0x0000025000000000-0x0000025001000000-memory.dmp

Filesize
16.0MB

Download
memory/416-64-0x0000025000000000-0x0000025001000000-memory.dmp

Filesize
16.0MB

Download
memory/416-67-0x000002507B5E0000-0x000002507B5E1000-memory.dmp

Filesize
4KB

Download
memory/3472-0-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download