32cbcd636b3295b79872dc883f84bd3c5f378f9e2bd64a73148e8a3d5d6d58f9

Analysis

max time kernel
90s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
16-02-2024 02:54

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General

Target

9f431f7105d073752fd396105dc898ef.jar
Size

94KB
MD5

9f431f7105d073752fd396105dc898ef
SHA1

62058bd9d3683d7a6983d36722fede080b87c3d3
SHA256

32cbcd636b3295b79872dc883f84bd3c5f378f9e2bd64a73148e8a3d5d6d58f9
SHA512

26df1f20d773c009df88e440a484dd5feafc8f3ef46ddf90fcd465eb1c4b44bff112a44c2f79b9168aa64564bfd7a48ec14d110384e3d5d3944b9ada1460aee0
SSDEEP

1536:Ex4jk2LwtGGBCRLwZ0MQ6i98iZGmAT5hSXx93uf3gdTsypX7GufP16wzInBvOwv:VjLwtGLi0MQ6iS8ATo9efwfplP11zC

Score

7^/10

discovery

Malware Config

Signatures

Modifies file permissions 1 TTPs 1 IoCs
discovery

File and Directory Permissions Modification
T1222

Processes:

icacls.exe

pid process

2420 icacls.exe

pid	process
2420	icacls.exe

Drops file in Program Files directory 12 IoCs

Processes:

java.exe

description	ioc	process
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\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\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\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\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\symbols\dll\ntdll.pdb	java.exe

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

java.exe

description pid process target process

PID 4328 wrote to memory of 2420 4328 java.exe icacls.exe
PID 4328 wrote to memory of 2420 4328 java.exe icacls.exe

description	pid	process	target process
PID 4328 wrote to memory of 2420	4328	java.exe	icacls.exe
PID 4328 wrote to memory of 2420	4328	java.exe	icacls.exe

C:\Program Files (x86)\Common Files\Oracle\Java\javapath\java.exe
java -jar C:\Users\Admin\AppData\Local\Temp\9f431f7105d073752fd396105dc898ef.jar
1⤵
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:4328

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:2420

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

File and Directory Permissions Modification

T1222

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\ProgramData\Oracle\Java\.oracle_jre_usage\3903daac9bc4a3b7.timestamp
Filesize
46B

MD5
75404e7f31661a5399c0ae5b69964f6a

SHA1
23c3e52fd7fda756ed43f2490a7633bcecd2a4fe

SHA256
e23058f4dd5326abe3951bfbaf7372cbcb01cad325bf7e77a979618c7cf096d6

SHA512
717630226811ce6f0451ce1cafcd99d1b90dd8edea1b898145a7dac217578003cbb8995a0e6d15e2b578888c03ca6ad86dd34948726aa9950baaa8769c62253a

Download Submit
memory/4328-34-0x0000023277F50000-0x0000023277F51000-memory.dmp

Filesize
4KB

Download
memory/4328-15-0x0000023200000000-0x0000023201000000-memory.dmp

Filesize
16.0MB

Download
memory/4328-20-0x0000023277F50000-0x0000023277F51000-memory.dmp

Filesize
4KB

Download
memory/4328-24-0x0000023200000000-0x0000023201000000-memory.dmp

Filesize
16.0MB

Download
memory/4328-29-0x0000023277F50000-0x0000023277F51000-memory.dmp

Filesize
4KB

Download
memory/4328-4-0x0000023200000000-0x0000023201000000-memory.dmp

Filesize
16.0MB

Download
memory/4328-37-0x0000023200000000-0x0000023201000000-memory.dmp

Filesize
16.0MB

Download
memory/4328-44-0x0000023200000000-0x0000023201000000-memory.dmp

Filesize
16.0MB

Download
memory/4328-48-0x0000023200000000-0x0000023201000000-memory.dmp

Filesize
16.0MB

Download
memory/4328-53-0x0000023277F50000-0x0000023277F51000-memory.dmp

Filesize
4KB

Download
memory/4328-66-0x0000023277F50000-0x0000023277F51000-memory.dmp

Filesize
4KB

Download
memory/4328-67-0x0000023277F50000-0x0000023277F51000-memory.dmp

Filesize
4KB

Download
memory/4328-69-0x0000023277F50000-0x0000023277F51000-memory.dmp

Filesize
4KB

Download
memory/4328-77-0x0000023277F50000-0x0000023277F51000-memory.dmp

Filesize
4KB

Download