88a9b4cfac5ba3a433942f8f4e489229f0fd694a7f9a78a8b6ca5cc5dc590e00

Analysis

max time kernel
147s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
30-03-2024 02:13

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General

Target

88a9b4cfac5ba3a433942f8f4e489229f0fd694a7f9a78a8b6ca5cc5dc590e00.jar
Size

109KB
MD5

ee75fce2158c3587daa560419f122001
SHA1

760d09adceeb4903db4130ef0d28654915844d5d
SHA256

88a9b4cfac5ba3a433942f8f4e489229f0fd694a7f9a78a8b6ca5cc5dc590e00
SHA512

c1a4ce9bf70ced9adee8f2955573e65777bc3e4151dacca076502cbd8cb8af9ceb5735cfed73e2bb9d8617961a3862ef94f440d25ab9f948407705b1a88d4229
SSDEEP

3072:QOOwYuveeNu/6Xy8HZknOZ6Xdbx9kkTrxZKXZnmVOEvIT:KwdveeoiXy8Cny6Nbx9nrxZKJtEvS

Score

7^/10

discovery

Malware Config

Signatures

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
3128	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\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\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\server\symbols\dll\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\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\ntdll.pdb	java.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\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\symbols\dll\ntdll.pdb	java.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 2560 wrote to memory of 3128	2560	java.exe	87
PID 2560 wrote to memory of 3128	2560	java.exe	87

C:\Program Files (x86)\Common Files\Oracle\Java\javapath\java.exe
java -jar C:\Users\Admin\AppData\Local\Temp\88a9b4cfac5ba3a433942f8f4e489229f0fd694a7f9a78a8b6ca5cc5dc590e00.jar
1⤵
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:2560
- 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:3128

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
7a8aff7b45b4885892ce1237a37041a1

SHA1
2e2f06a8ad134c4e784d961001fe00a1ef5ea552

SHA256
2420ad0b67661d0105dd95d612b5fc5a599724bdfc5cd7651ff8f59f05417ece

SHA512
a730fbb88786c1864c5613e122f9cefb8f7754e9385caf7292382adb0d9d7f10e425c0dda5547a795d9e51d79ed653264157884b369dc639ad10cf594908be4e

Download Submit
memory/2560-4-0x000001F3A2FB0000-0x000001F3A3FB0000-memory.dmp

Filesize
16.0MB

Download
memory/2560-12-0x000001F3A2F90000-0x000001F3A2F91000-memory.dmp

Filesize
4KB

Download
memory/2560-18-0x000001F3A2FB0000-0x000001F3A3FB0000-memory.dmp

Filesize
16.0MB

Download
memory/2560-22-0x000001F3A2F90000-0x000001F3A2F91000-memory.dmp

Filesize
4KB

Download
memory/2560-23-0x000001F3A3230000-0x000001F3A3240000-memory.dmp

Filesize
64KB

Download
memory/2560-24-0x000001F3A3240000-0x000001F3A3250000-memory.dmp

Filesize
64KB

Download
memory/2560-26-0x000001F3A3260000-0x000001F3A3270000-memory.dmp

Filesize
64KB

Download
memory/2560-25-0x000001F3A3250000-0x000001F3A3260000-memory.dmp

Filesize
64KB

Download
memory/2560-27-0x000001F3A2FB0000-0x000001F3A3FB0000-memory.dmp

Filesize
16.0MB

Download
memory/2560-28-0x000001F3A2FB0000-0x000001F3A3FB0000-memory.dmp

Filesize
16.0MB

Download