Analysis

  • max time kernel
    148s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07/10/2024, 13:49

General

  • Target
    down.exe
  • Size 1.3MB
  • Sample241007-q4nmrssbqg
  • SHA256 e84f3f36aa22f8b7f7399ce57c68014ea23140e88755516db02b5e056d18dad6
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • vidar

Version
  • 11

Botnet
  • 744fd163d6d4e0ac37e4032bcbfbb6af

C2
  • https://steamcommunity.com/profiles/76561199780418869

  • https://t.me/ae5ed

Attributes
  • user_agent

    Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:130.0) Gecko/20100101 Firefox/130.0

Signatures

  • Detect Vidar Stealer 15 IoCs
  • Suspicious use of NtCreateUserProcessOtherParentProcess 2 IoCs
  • Vidar

    Vidar is an infostealer based on Arkei stealer.

  • Downloads MZ/PE file
  • Checks computer location settings 2 TTPs 2 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Drops startup file 2 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Unsecured Credentials: Credentials In Files 1 TTPs

    Steal credentials from unsecured files.

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Enumerates processes with tasklist 1 TTPs 2 IoCs
  • Drops file in Windows directory 9 IoCs
  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 16 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Delays execution with timeout.exe 1 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 38 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of FindShellTrayWindow 3 IoCs
  • Suspicious use of SendNotifyMessage 3 IoCs
  • Suspicious use of WriteProcessMemory 45 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:3560
      • C:\Users\Admin\AppData\Local\Temp\down.exe
        "C:\Users\Admin\AppData\Local\Temp\down.exe"
        2⤵
        • Checks computer location settings
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2524
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\System32\cmd.exe" /c move Devil Devil.bat & Devil.bat
          3⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:1172
          • C:\Windows\SysWOW64\tasklist.exe
            tasklist
            4⤵
            • Enumerates processes with tasklist
            • System Location Discovery: System Language Discovery
            • Suspicious use of AdjustPrivilegeToken
            PID:1212
          • C:\Windows\SysWOW64\findstr.exe
            findstr /I "wrsa opssvc"
            4⤵
            • System Location Discovery: System Language Discovery
            PID:2024
          • C:\Windows\SysWOW64\tasklist.exe
            tasklist
            4⤵
            • Enumerates processes with tasklist
            • System Location Discovery: System Language Discovery
            • Suspicious use of AdjustPrivilegeToken
            PID:100
          • C:\Windows\SysWOW64\findstr.exe
            findstr /I "avastui avgui bdservicehost nswscsvc sophoshealth"
            4⤵
            • System Location Discovery: System Language Discovery
            PID:2020
          • C:\Windows\SysWOW64\cmd.exe
            cmd /c md 285204
            4⤵
            • System Location Discovery: System Language Discovery
            PID:4856
          • C:\Windows\SysWOW64\findstr.exe
            findstr /V "AugQualificationDepthWidth" Course
            4⤵
            • System Location Discovery: System Language Discovery
            PID:732
          • C:\Windows\SysWOW64\cmd.exe
            cmd /c copy /b ..\Hb + ..\Rapid + ..\London + ..\Royal + ..\Charter + ..\Deck + ..\Pichunter + ..\Killing N
            4⤵
            • System Location Discovery: System Language Discovery
            PID:1732
          • C:\Users\Admin\AppData\Local\Temp\285204\Kim.pif
            Kim.pif N
            4⤵
            • Suspicious use of NtCreateUserProcessOtherParentProcess
            • Checks computer location settings
            • Executes dropped EXE
            • Loads dropped DLL
            • System Location Discovery: System Language Discovery
            • Checks processor information in registry
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of FindShellTrayWindow
            • Suspicious use of SendNotifyMessage
            • Suspicious use of WriteProcessMemory
            PID:4912
            • C:\Windows\SysWOW64\cmd.exe
              "C:\Windows\system32\cmd.exe" /c timeout /t 10 & rd /s /q "C:\ProgramData\HIDGCFBFBFBK" & exit
              5⤵
              • System Location Discovery: System Language Discovery
              • Suspicious use of WriteProcessMemory
              PID:1144
              • C:\Windows\SysWOW64\timeout.exe
                timeout /t 10
                6⤵
                • System Location Discovery: System Language Discovery
                • Delays execution with timeout.exe
                PID:4044
          • C:\Windows\SysWOW64\choice.exe
            choice /d y /t 5
            4⤵
            • System Location Discovery: System Language Discovery
            PID:2436
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c schtasks.exe /create /tn "Practices" /tr "wscript //B 'C:\Users\Admin\AppData\Local\DataWave Sphere Co\SyncWave.js'" /sc minute /mo 5 /F
        2⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:4760
        • C:\Windows\SysWOW64\schtasks.exe
          schtasks.exe /create /tn "Practices" /tr "wscript //B 'C:\Users\Admin\AppData\Local\DataWave Sphere Co\SyncWave.js'" /sc minute /mo 5 /F
          3⤵
          • System Location Discovery: System Language Discovery
          • Scheduled Task/Job: Scheduled Task
          PID:2928
      • C:\Windows\SysWOW64\cmd.exe
        cmd /k echo [InternetShortcut] > "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\SyncWave.url" & echo URL="C:\Users\Admin\AppData\Local\DataWave Sphere Co\SyncWave.js" >> "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\SyncWave.url" & exit
        2⤵
        • Drops startup file
        • System Location Discovery: System Language Discovery
        PID:2588

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          mozglue.dll

          • Path C:\ProgramData\mozglue.dll
          • Size 593KB
          • SHA256 ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a
          • MD5 SHA1 SHA512 SSDEEP

          nss3.dll

          • Path C:\ProgramData\nss3.dll
          • Size 2.0MB
          • SHA256 ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5
          • MD5 SHA1 SHA512 SSDEEP

          Kim.pif

          • Path C:\Users\Admin\AppData\Local\Temp\285204\Kim.pif
          • Size 872KB
          • SHA256 d8b7c7178fbadbf169294e4f29dce582f89a5cf372e9da9215aa082330dc12fd
          • MD5 SHA1 SHA512 SSDEEP

          N

          • Path C:\Users\Admin\AppData\Local\Temp\285204\N
          • Size 570KB
          • SHA256 62834a6dad4f88b12d055896e14ed6638acdc2399a35b96a5df66c6f7ed72fef
          • MD5 SHA1 SHA512 SSDEEP

          Charter

          • Path C:\Users\Admin\AppData\Local\Temp\Charter
          • Size 89KB
          • SHA256 4781b721205bcc4a912534f0f006acc8f49f220909b45c82e5d70ca718e80b84
          • MD5 SHA1 SHA512 SSDEEP

          Course

          • Path C:\Users\Admin\AppData\Local\Temp\Course
          • Size 6KB
          • SHA256 71ac8f4534eb924876822260553e2c5fdfee7fc9a50790ffd3842339d8a33e35
          • MD5 SHA1 SHA512 SSDEEP

          Deck

          • Path C:\Users\Admin\AppData\Local\Temp\Deck
          • Size 95KB
          • SHA256 75f00c8c8a5841c48d383384ed01d0d9fea056fc8bb6b7e275e3a29edf37fa7b
          • MD5 SHA1 SHA512 SSDEEP

          Devil

          • Path C:\Users\Admin\AppData\Local\Temp\Devil
          • Size 24KB
          • SHA256 d97e4faaa2b3f23b147a2a626634794e9e853a3e661472502d6d786edb1c6c7a
          • MD5 SHA1 SHA512 SSDEEP

          Hb

          • Path C:\Users\Admin\AppData\Local\Temp\Hb
          • Size 69KB
          • SHA256 3c4f40140a71ecfde55326f84ca878e5c1a101d457107da13017f5670c6a5bb4
          • MD5 SHA1 SHA512 SSDEEP

          Herself

          • Path C:\Users\Admin\AppData\Local\Temp\Herself
          • Size 866KB
          • SHA256 f9d2fe0dff05d8485cc1104e64940673055bd2ee3ff90297dad183fb6356eae3
          • MD5 SHA1 SHA512 SSDEEP

          Killing

          • Path C:\Users\Admin\AppData\Local\Temp\Killing
          • Size 13KB
          • SHA256 f63d2eb292cab30f8e1ab7d9e2ed7b3b19b2be588da4fed455265ea9a6264a11
          • MD5 SHA1 SHA512 SSDEEP

          London

          • Path C:\Users\Admin\AppData\Local\Temp\London
          • Size 75KB
          • SHA256 af8444e8ee47f86fb80bcca4b65c0e2db813240a6479a44ed7c0d4ad310d43e2
          • MD5 SHA1 SHA512 SSDEEP

          Pichunter

          • Path C:\Users\Admin\AppData\Local\Temp\Pichunter
          • Size 91KB
          • SHA256 02f813b83cd0126e876f387ac82b51289a9888e7b142fe41a543aaf57e91d225
          • MD5 SHA1 SHA512 SSDEEP

          Rapid

          • Path C:\Users\Admin\AppData\Local\Temp\Rapid
          • Size 68KB
          • SHA256 3739a2c7bf513612f2d616bb10b0221512fa4cce0222441d7ba96ffdfb553387
          • MD5 SHA1 SHA512 SSDEEP

          Royal

          • Path C:\Users\Admin\AppData\Local\Temp\Royal
          • Size 70KB
          • SHA256 207eb1026caac4ee644f3b7e1be0d455ac93298b07e329371e1bbd81cc6dc50e
          • MD5 SHA1 SHA512 SSDEEP

          delays.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\delays.tmp
          • Size 1023KB
          • SHA256 8b215bed267f27b72618d7b16aa37c074818b3bdc0050236df6bc8a0fd4f3a42
          • MD5 SHA1 SHA512 SSDEEP

          memory/4912-38-0x00000000075C0000-0x0000000007836000-memory.dmp

          memory/4912-69-0x00000000075C0000-0x0000000007836000-memory.dmp

          memory/4912-40-0x00000000075C0000-0x0000000007836000-memory.dmp

          memory/4912-37-0x00000000075C0000-0x0000000007836000-memory.dmp

          memory/4912-51-0x00000000075C0000-0x0000000007836000-memory.dmp

          memory/4912-52-0x00000000075C0000-0x0000000007836000-memory.dmp

          memory/4912-53-0x0000000004BC0000-0x0000000004E1F000-memory.dmp

          memory/4912-60-0x00000000075C0000-0x0000000007836000-memory.dmp

          memory/4912-61-0x00000000075C0000-0x0000000007836000-memory.dmp

          memory/4912-39-0x00000000075C0000-0x0000000007836000-memory.dmp

          memory/4912-70-0x00000000075C0000-0x0000000007836000-memory.dmp

          memory/4912-86-0x00000000075C0000-0x0000000007836000-memory.dmp

          memory/4912-87-0x00000000075C0000-0x0000000007836000-memory.dmp

          memory/4912-36-0x00000000075C0000-0x0000000007836000-memory.dmp

          memory/4912-35-0x00000000075C0000-0x0000000007836000-memory.dmp

          memory/4912-109-0x00000000075C0000-0x0000000007836000-memory.dmp

          memory/4912-110-0x00000000075C0000-0x0000000007836000-memory.dmp

          memory/4912-120-0x00000000075C0000-0x0000000007836000-memory.dmp

          memory/4912-121-0x00000000075C0000-0x0000000007836000-memory.dmp