4e0ddcd303f27c01dcc8a35a9bd821c53fb7dcca474ac7f0c84d3c6451e9f778

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09-04-2024 13:34

240409-qvlrtabe9s 10

09-04-2024 13:34

09-04-2024 13:33

09-04-2024 13:33

07-07-2023 11:45

Analysis

max time kernel
132s
max time network
135s
platform
windows10-1703_x64
resource
win10-20240404-en
resource tags

arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system
submitted
14-04-2024 10:31

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General

Target

Java Install.jar
Size

92KB
MD5

c55f9247eb8ea19af96292f0893f86b5
SHA1

bd5e6884b8151114af7e45a92525893f4d2aaabd
SHA256

16ed7004aa68efab0eda75b3f9bff11508365a4224ef859c91f93029bc441284
SHA512

3efab4ee9e3c9d81efd4e2f164c0a2ae72f688cbd0068cc44a063bf4787ba65b8d2a644ac2f7704fbd059d0ba96665aeff46c2bfba820fb42df06eea7e87ccdb
SSDEEP

1536:QL/61A/qP1+9Qc1+jxjciQnGSzPsRBo0fpL9mjMT8mMhe3gnHGvPvxKpjHr9Uy:QLn/qP1CQpjEGyP0Bxf99mYTX3gmvKLn

Score

7^/10

discovery

Malware Config

Signatures

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
3888	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\server\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\dll\jvm.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\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\ntdll.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

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 4092 wrote to memory of 3888	4092	java.exe	74
PID 4092 wrote to memory of 3888	4092	java.exe	74

C:\Program Files (x86)\Common Files\Oracle\Java\javapath\java.exe
java -jar "C:\Users\Admin\AppData\Local\Temp\Java Install.jar"
1⤵
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:4092
- 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:3888

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
3e2fe01d92613035a019f80c07cdb062

SHA1
30622b10ad6d4b541b9ab615010cca36e475489c

SHA256
681faf2bd3752fb39b8b4915dc9548e0051d83c91204c965407594dac52424af

SHA512
dffbc6ddf7e1cb901dbb05f5e2dabbabf1ad4dd2d3b09f1893710e46638c6abb15864c7244fc97548b09c9485020be63638c159cb4e79e514878ed76aed0e554

Download Submit
memory/4092-4-0x0000021F5CFD0000-0x0000021F5DFD0000-memory.dmp

Filesize
16.0MB

Download
memory/4092-12-0x0000021F5B5F0000-0x0000021F5B5F1000-memory.dmp

Filesize
4KB

Download
memory/4092-15-0x0000021F5CFD0000-0x0000021F5DFD0000-memory.dmp

Filesize
16.0MB

Download