Analysis
- max time kernel
298s - max time network
201s - platform
windows10-ltsc_2021_x64 - resource
win10ltsc2021-20260513-en - resource tags
arch:x64arch:x86image:win10ltsc2021-20260513-enlocale:en-usos:windows10-ltsc_2021-x64systemwindows - submitted
07/09/2026, 18:26
Behavioral task
behavioral1
Sample
SonicAcademy_RSA_KeyGen.exe
Resource
win10ltsc2021-20260513-en
7 signatures
300 seconds
Behavioral task
behavioral2
Sample
$TEMP/BASSMOD.dll
Resource
win10ltsc2021-20260513-en
2 signatures
300 seconds
Behavioral task
behavioral3
Sample
$TEMP/R2RSARSA.dll
Resource
win10ltsc2021-20260513-en
3 signatures
300 seconds
Behavioral task
behavioral4
Sample
$TEMP/keygen.exe
Resource
win10ltsc2021-20260513-en
1 signatures
300 seconds
General
- Target $TEMP/R2RSARSA.dll
- Size 136KB
- Sample260907-w277aaaf49
- SHA256 13bed07548f65041059f2d93b43719df23c5283d9b8bbddfbf76725a5488595b
- MD5 e8655d19b3dd3efe346d611b4df00f7b
- SHA1 1241a3ca6ad3482ffdefd3a97b114573dc6a8b72
- SHA512 8c6692b0c0a1972deda0eb930016e1c02b129dc56b37db10b4b8e02343e1c4edd0666fef263cfc15887764d88608c12bbe56e0cf17d8368caa91150d029b49d2
- SSDEEP 3072:byDKjHM7jtFjGSzqEmkdiioQy5VHUp4Bnh/f55cYEvd2IuCDfypTDlHWWE:bGK7sjtNqMFiVHU0PcYcYIuCDfyXTE
- TLSH T15DD312EDC6A54C36C6DB13B12D8F8ADE8C2D503447BF1FA109011B5F6294664EC1EDEA
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
3/10
Malware Config
Signatures
- Program crash 1 IoCs
pid pid_target Process procid_target 1524 4292 WerFault.exe 82 - System Location Discovery: System Language Discovery 1 TTPs 1 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rundll32.exe - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 3488 wrote to memory of 4292 3488 rundll32.exe 82
Processes
-
C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\$TEMP\R2RSARSA.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:3488 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\$TEMP\R2RSARSA.dll,#12⤵
- System Location Discovery: System Language Discovery
PID:4292 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4292 -s 6203⤵
- Program crash
PID:1524
-
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 4292 -ip 42921⤵PID:1492