Analysis
- max time kernel
88s - max time network
137s - platform
windows10-2004_x64 - resource
win10v2004-20231222-en - resource tags
arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system - submitted
27/01/2024, 16:27
Behavioral task
behavioral1
Sample
recode.exe
Resource
win7-20231215-en
9 signatures
150 seconds
Behavioral task
behavioral2
Sample
recode.exe
Resource
win10v2004-20231222-en
8 signatures
150 seconds
General
- Target recode.exe
- Size 5.6MB
- Sample240127-tyb9bshedj
- SHA256 b382fa9767ccb693a1a072b34d65832f0a35a66664e6f8013c6e2a98478d884b
- MD5 5157e695d6a6910633aa6bfdf1188c70
- SHA1 8c701a5e59f7873eceb5041367337b3e13fef56b
- SHA512 3ea215fd5174a81490fef085decd204d16c48ed6cd2f33601f79b934858d9252049b33adb6e6defcbbc33db3fe31f60b2ef5ce59f69b459b731f1d97e0ac6162
- SSDEEP 98304:cnRQqTLnZaJPSH3KCKnjZoJIZfezj5nRhTxEOiMmdBeBCvZh:uFa1wKhtoJIZfuVTxETM
- MD5 SHA1 SHA512 SSDEEP
Score
8/10
Malware Config
Signatures
- Downloads MZ/PE file
- Drops file in Drivers directory 2 IoCs
description ioc Process File created C:\Windows\System32\Drivers\ntdist.sys recode.exe File created C:\Windows\System32\Drivers\fortnite-driver.sys recode.exe - Sets service image path in registry 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\fortnite-driver\ImagePath = "\\??\\C:\\Windows\\System32\\Drivers\\fortnite-driver.sys" recode.exe Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\ntdist\ImagePath = "\\??\\C:\\Windows\\System32\\Drivers\\ntdist.sys" recode.exe -
resource yara_rule behavioral2/memory/4032-3-0x00007FF7A86C0000-0x00007FF7A9088000-memory.dmp vmprotect behavioral2/memory/4032-15-0x00007FF7A86C0000-0x00007FF7A9088000-memory.dmp vmprotect - Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 4032 recode.exe 4032 recode.exe - Suspicious behavior: LoadsDriver 1 IoCs
pid Process 4032 recode.exe - Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeLoadDriverPrivilege 4032 recode.exe - Suspicious use of WriteProcessMemory 2 IoCs
description pid Process procid_target PID 4032 wrote to memory of 4644 4032 recode.exe 94 PID 4032 wrote to memory of 4644 4032 recode.exe 94
Processes
-
C:\Users\Admin\AppData\Local\Temp\recode.exe"C:\Users\Admin\AppData\Local\Temp\recode.exe"1⤵
- Drops file in Drivers directory
- Sets service image path in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: LoadsDriver
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4032 -
C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c cls2⤵PID:4644
-