83f4d1fd06965361ddd76fb9d1c132a0f1b8dcbfbc41309f73ac152b8c922f43

Analysis

max time kernel
93s
max time network
125s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
02-03-2024 04:02

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General

Target

21d2af8f6192380ebf0c91923df9a12a0d6b3c26f8478da73c8d8bf0d3963756.jar
Size

209KB
MD5

f9c912be352f38dce2c0e9743e9a46ba
SHA1

da2c05295eaff7e917a99b87c426d673f021a8ab
SHA256

21d2af8f6192380ebf0c91923df9a12a0d6b3c26f8478da73c8d8bf0d3963756
SHA512

14f7409a78cf4bd9f8b1943f24a9ecb591e5bc5e3eb25aa485f084c5881017f74faa3680ca83f4f732afbdd1361ee448d93ddc14a22858afcb490ed1a4bbb5fa
SSDEEP

6144:Ve/8hJTHV/SaxkiQzyORDGVWWUIYucPBVmyKT:VeUh1FjTQBaWWUIqTKT

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

4676 icacls.exe

pid	process
4676	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\jvm.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\symbols\dll\ntdll.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\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\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\dll\ntdll.pdb	java.exe

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

java.exe

description pid process target process

PID 4408 wrote to memory of 4676 4408 java.exe icacls.exe
PID 4408 wrote to memory of 4676 4408 java.exe icacls.exe

description	pid	process	target process
PID 4408 wrote to memory of 4676	4408	java.exe	icacls.exe
PID 4408 wrote to memory of 4676	4408	java.exe	icacls.exe

C:\Program Files (x86)\Common Files\Oracle\Java\javapath\java.exe
java -jar C:\Users\Admin\AppData\Local\Temp\21d2af8f6192380ebf0c91923df9a12a0d6b3c26f8478da73c8d8bf0d3963756.jar
1⤵
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:4408

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:4676

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
a223d89a99c43e1ef16c4dc7c1d5029d

SHA1
14422fea35e87680a10ee8c29623860e42b2cdba

SHA256
07594d336b695f1d062004c65e9f644f0c7985414fb86d6f9d046e0a5d9934f0

SHA512
ac4fb42bb6ea1d0ae105480fdeeb947a0478c9a9262efe6f32b92a2a12edb40b8266edd5410d32a3c3440ec4363e06b484cad12dd4a5f64d6dce7313e3bd6e38

Download Submit
memory/4408-44-0x0000025790D30000-0x0000025790D40000-memory.dmp

Filesize
64KB

Download
memory/4408-53-0x0000025790DA0000-0x0000025790DB0000-memory.dmp

Filesize
64KB

Download
memory/4408-43-0x0000025790CC0000-0x0000025790CD0000-memory.dmp

Filesize
64KB

Download
memory/4408-25-0x0000025790A40000-0x0000025791A40000-memory.dmp

Filesize
16.0MB

Download
memory/4408-30-0x000002578F270000-0x000002578F271000-memory.dmp

Filesize
4KB

Download
memory/4408-34-0x0000025790A40000-0x0000025791A40000-memory.dmp

Filesize
16.0MB

Download
memory/4408-39-0x0000025790A40000-0x0000025791A40000-memory.dmp

Filesize
16.0MB

Download
memory/4408-41-0x0000025790A40000-0x0000025791A40000-memory.dmp

Filesize
16.0MB

Download
memory/4408-17-0x0000025790A40000-0x0000025791A40000-memory.dmp

Filesize
16.0MB

Download
memory/4408-14-0x000002578F270000-0x000002578F271000-memory.dmp

Filesize
4KB

Download
memory/4408-46-0x0000025790D90000-0x0000025790DA0000-memory.dmp

Filesize
64KB

Download
memory/4408-45-0x0000025790D50000-0x0000025790D60000-memory.dmp

Filesize
64KB

Download
memory/4408-47-0x0000025790D20000-0x0000025790D30000-memory.dmp

Filesize
64KB

Download
memory/4408-48-0x0000025790A40000-0x0000025791A40000-memory.dmp

Filesize
16.0MB

Download
memory/4408-49-0x0000025790D40000-0x0000025790D50000-memory.dmp

Filesize
64KB

Download
memory/4408-51-0x0000025790D70000-0x0000025790D80000-memory.dmp

Filesize
64KB

Download
memory/4408-50-0x0000025790D60000-0x0000025790D70000-memory.dmp

Filesize
64KB

Download
memory/4408-52-0x0000025790D80000-0x0000025790D90000-memory.dmp

Filesize
64KB

Download
memory/4408-4-0x0000025790A40000-0x0000025791A40000-memory.dmp

Filesize
16.0MB

Download