Analysis
-
max time kernel
137s -
max time network
147s -
platform
windows10_x64 -
resource
win10v200722 -
submitted
31-07-2020 16:12
Static task
static1
Behavioral task
behavioral1
Sample
983909e9e67f6f54976187f51d865ddd.exe
Resource
win7
windows7_x64
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
983909e9e67f6f54976187f51d865ddd.exe
Resource
win10v200722
windows10_x64
0 signatures
0 seconds
General
-
Target
983909e9e67f6f54976187f51d865ddd.exe
-
Size
830KB
-
MD5
983909e9e67f6f54976187f51d865ddd
-
SHA1
b97e49007f7d75ae33bf67de303a737a1bb1e080
-
SHA256
8bb7089cb231edd0bd09d9611b41f6f23e12e5110dee1c97a1346ef57198c41f
-
SHA512
456912d32483c0ac9bc0560eccfab23ed6fa9fbffb15b97a889b5806b2831e73f49b6190deb9d70543c49a1fd0186d1c7df5b2cf77574c4dac4a65fb0d1e2282
Score
8/10
Malware Config
Signatures
-
Loads dropped DLL 3 IoCs
Processes:
rundll32.exerundll32.exepid process 548 rundll32.exe 496 rundll32.exe 496 rundll32.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
rundll32.exepid process 548 rundll32.exe 548 rundll32.exe 548 rundll32.exe 548 rundll32.exe -
Blacklisted process makes network request 2 IoCs
Processes:
rundll32.exerundll32.exeflow pid process 4 548 rundll32.exe 8 496 rundll32.exe -
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
-
NTFS ADS 1 IoCs
Processes:
983909e9e67f6f54976187f51d865ddd.exedescription ioc process File created \??\c:\programdata\1321ba6d1f\bdif.exe:Zone.Identifier 983909e9e67f6f54976187f51d865ddd.exe -
Adds Run key to start application 2 TTPs 4 IoCs
Processes:
REG.exeREG.exedescription ioc process Key created \REGISTRY\USER\S-1-5-21-1400429095-533421673-2598934218-1000\Software\Microsoft\Windows\CurrentVersion\Run REG.exe Set value (str) \REGISTRY\USER\S-1-5-21-1400429095-533421673-2598934218-1000\Software\Microsoft\Windows\CurrentVersion\Run\cred = "rundll32 C:\\Users\\Admin\\AppData\\Local\\Temp\\cred.dll, Main" REG.exe Key created \REGISTRY\USER\S-1-5-21-1400429095-533421673-2598934218-1000\Software\Microsoft\Windows\CurrentVersion\Run REG.exe Set value (str) \REGISTRY\USER\S-1-5-21-1400429095-533421673-2598934218-1000\Software\Microsoft\Windows\CurrentVersion\Run\scr = "rundll32 C:\\Users\\Admin\\AppData\\Local\\Temp\\scr.dll, Main" REG.exe -
Suspicious use of WriteProcessMemory 24 IoCs
Processes:
983909e9e67f6f54976187f51d865ddd.exebdif.execmd.exedescription pid process target process PID 3980 wrote to memory of 3628 3980 983909e9e67f6f54976187f51d865ddd.exe bdif.exe PID 3980 wrote to memory of 3628 3980 983909e9e67f6f54976187f51d865ddd.exe bdif.exe PID 3980 wrote to memory of 3628 3980 983909e9e67f6f54976187f51d865ddd.exe bdif.exe PID 3628 wrote to memory of 420 3628 bdif.exe REG.exe PID 3628 wrote to memory of 420 3628 bdif.exe REG.exe PID 3628 wrote to memory of 420 3628 bdif.exe REG.exe PID 3628 wrote to memory of 548 3628 bdif.exe rundll32.exe PID 3628 wrote to memory of 548 3628 bdif.exe rundll32.exe PID 3628 wrote to memory of 548 3628 bdif.exe rundll32.exe PID 3628 wrote to memory of 1012 3628 bdif.exe REG.exe PID 3628 wrote to memory of 1012 3628 bdif.exe REG.exe PID 3628 wrote to memory of 1012 3628 bdif.exe REG.exe PID 3628 wrote to memory of 496 3628 bdif.exe rundll32.exe PID 3628 wrote to memory of 496 3628 bdif.exe rundll32.exe PID 3628 wrote to memory of 496 3628 bdif.exe rundll32.exe PID 3628 wrote to memory of 3056 3628 bdif.exe cmd.exe PID 3628 wrote to memory of 3056 3628 bdif.exe cmd.exe PID 3628 wrote to memory of 3056 3628 bdif.exe cmd.exe PID 3628 wrote to memory of 3032 3628 bdif.exe REG.exe PID 3628 wrote to memory of 3032 3628 bdif.exe REG.exe PID 3628 wrote to memory of 3032 3628 bdif.exe REG.exe PID 3056 wrote to memory of 3728 3056 cmd.exe schtasks.exe PID 3056 wrote to memory of 3728 3056 cmd.exe schtasks.exe PID 3056 wrote to memory of 3728 3056 cmd.exe schtasks.exe -
Executes dropped EXE 1 IoCs
Processes:
bdif.exepid process 3628 bdif.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\983909e9e67f6f54976187f51d865ddd.exe"C:\Users\Admin\AppData\Local\Temp\983909e9e67f6f54976187f51d865ddd.exe"1⤵
- NTFS ADS
- Suspicious use of WriteProcessMemory
-
\??\c:\programdata\1321ba6d1f\bdif.exec:\programdata\1321ba6d1f\bdif.exe2⤵
- Suspicious use of WriteProcessMemory
- Executes dropped EXE
-
C:\Windows\SysWOW64\REG.exeREG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /f /v cred /t REG_SZ /d "rundll32 C:\Users\Admin\AppData\Local\Temp\cred.dll, Main"3⤵
- Adds Run key to start application
-
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\cred.dll, Main3⤵
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Blacklisted process makes network request
-
C:\Windows\SysWOW64\REG.exeREG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /f /v scr /t REG_SZ /d "rundll32 C:\Users\Admin\AppData\Local\Temp\scr.dll, Main"3⤵
- Adds Run key to start application
-
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\scr.dll, Main3⤵
- Loads dropped DLL
- Blacklisted process makes network request
-
C:\Windows\SysWOW64\cmd.execmd.exe /C SCHTASKS /Create /SC HOURLY /MO 1 /TN a174c1ef10e2077451f5b6dda83242a1 /TR c:\programdata\1321ba6d1f\bdif.exe3⤵
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\schtasks.exeSCHTASKS /Create /SC HOURLY /MO 1 /TN a174c1ef10e2077451f5b6dda83242a1 /TR c:\programdata\1321ba6d1f\bdif.exe4⤵
- Creates scheduled task(s)
-
C:\Windows\SysWOW64\REG.exeREG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\User Shell Folders" /f /v Startup /t REG_SZ /d c:\programdata\1321ba6d1f3⤵
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
-
C:\ProgramData\1321ba6d1f\bdif.exe
-
C:\ProgramData\a174c1ef10e2077451f5b6dda83242a1
-
C:\Users\Admin\AppData\Local\Temp\cred.dll
-
C:\Users\Admin\AppData\Local\Temp\scr.dll
-
\??\c:\programdata\1321ba6d1f\bdif.exe
-
\Users\Admin\AppData\Local\Temp\cred.dll
-
\Users\Admin\AppData\Local\Temp\scr.dll
-
\Users\Admin\AppData\Local\Temp\scr.dll
-
memory/420-4-0x0000000000000000-mapping.dmp
-
memory/496-9-0x0000000000000000-mapping.dmp
-
memory/548-5-0x0000000000000000-mapping.dmp
-
memory/1012-8-0x0000000000000000-mapping.dmp
-
memory/3032-14-0x0000000000000000-mapping.dmp
-
memory/3056-13-0x0000000000000000-mapping.dmp
-
memory/3628-0-0x0000000000000000-mapping.dmp
-
memory/3728-15-0x0000000000000000-mapping.dmp