Analysis
- max time kernel
143s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20231215-en - resource tags
arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system - submitted
03/02/2024, 14:41
Behavioral task
behavioral1
Sample
8c967e80d69f6d0407af817acc034ee9.jar
Resource
win7-20231215-en
0 signatures
150 seconds
Behavioral task
behavioral2
Sample
8c967e80d69f6d0407af817acc034ee9.jar
Resource
win10v2004-20231215-en
3 signatures
150 seconds
General
- Target 8c967e80d69f6d0407af817acc034ee9.jar
- Size 110KB
- Sample240203-r2lwtsebdq
- SHA256 945fddfc1fa07995d86ba94d167693ce80f462b3738a6c1c05a5557601aadf2f
- MD5 8c967e80d69f6d0407af817acc034ee9
- SHA1 2dab6fb260d020c40b92280effb4c6f91a97b0ed
- SHA512 63a9f6fd6ec35bb67eebda6a4f1cbb75a2a4d76a800afbac9b04aa2b65a767aab917fd1ba9bfac96386949b7103f96f9b4b66b7eceb2c09f2506d1b465552e15
- SSDEEP 1536:m+6lO77EyNyGSZTvdBxX5CJgOn1HAqnA/GSHLx4hVtjZZ30mlz9YfijW/lS6:mFyYJxX5eggArOSrehHZZEmlx9C/D
- MD5 SHA1 SHA512 SSDEEP
Score
7/10
Malware Config
Signatures
- Modifies file permissions 1 TTPs 1 IoCs
pid Process 3940 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\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\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\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\server\symbols\dll\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\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\server\ntdll.pdb java.exe - Suspicious use of WriteProcessMemory 2 IoCs
description pid Process procid_target PID 3364 wrote to memory of 3940 3364 java.exe 85 PID 3364 wrote to memory of 3940 3364 java.exe 85
Processes
-
C:\Program Files (x86)\Common Files\Oracle\Java\javapath\java.exejava -jar C:\Users\Admin\AppData\Local\Temp\8c967e80d69f6d0407af817acc034ee9.jar1⤵
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:3364 -
C:\Windows\system32\icacls.exeC:\Windows\system32\icacls.exe C:\ProgramData\Oracle\Java\.oracle_jre_usage /grant "everyone":(OI)(CI)M2⤵
- Modifies file permissions
PID:3940
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
- Path C:\ProgramData\Oracle\Java\.oracle_jre_usage\3903daac9bc4a3b7.timestamp
- Size 46B
- SHA256 4729570392d2cb75053be0c2788d6db08cde2886b1d50a1047995e4e41adea79
- MD5 c96dcf1835e94417362960785912113a
- SHA1 31f4b35aacfc32e077c8f0fd758437161feb9c77
- SHA512 9f70d43d833bdc0b765d50ad815d74eff88e455304aa84d9ac3ea5c526e4026ccd727ca18b0675bd4650583ebacff1b2a7059164cfe8c57872ce8f02a1594d5e
- MD5 SHA1 SHA512