Analysis

  • max time kernel
    126s
  • max time network
    85s
  • platform
    windows7_x64
  • resource
    win7-20240729-en
  • resource tags

    arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
  • submitted
    10/09/2024, 02:09

General

  • Target
    b4346702b4b5029cbd627b5df724550f8b783ba22876e5070dadc0ed5c214df2.msi
  • Size 23.0MB
  • Sample240910-clb95atcra
  • SHA256 b4346702b4b5029cbd627b5df724550f8b783ba22876e5070dadc0ed5c214df2
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Rhadamanthys

    Rhadamanthys is an info stealer written in C++ first seen in August 2022.

  • Suspicious use of NtCreateUserProcessOtherParentProcess 1 IoCs
  • Blocklisted process makes network request 4 IoCs
  • Enumerates connected drives 3 TTPs 64 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops file in Windows directory 11 IoCs
  • Loads dropped DLL 1 IoCs
  • Event Triggered Execution: Installer Packages 2 TTPs 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

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

  • Modifies data under HKEY_USERS 46 IoCs
  • Modifies registry class 22 IoCs
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 3 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs
  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:1244
      • C:\Windows\system32\msiexec.exe
        msiexec.exe /I C:\Users\Admin\AppData\Local\Temp\b4346702b4b5029cbd627b5df724550f8b783ba22876e5070dadc0ed5c214df2.msi
        2⤵
        • Blocklisted process makes network request
        • Enumerates connected drives
        • Event Triggered Execution: Installer Packages
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of FindShellTrayWindow
        PID:2636
      • C:\Windows\SysWOW64\dialer.exe
        "C:\Windows\system32\dialer.exe"
        2⤵
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        PID:1536
    • C:\Windows\system32\msiexec.exe
      C:\Windows\system32\msiexec.exe /V
      1⤵
      • Blocklisted process makes network request
      • Enumerates connected drives
      • Drops file in Windows directory
      • Modifies data under HKEY_USERS
      • Modifies registry class
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1496
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding AD2774D903FC71D44327A4B1F5E13CA4
        2⤵
        • Suspicious use of NtCreateUserProcessOtherParentProcess
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:2128
        • C:\Windows\SysWOW64\msiexec.exe
          "C:\Windows\System32\msiexec.exe" /i "C:\Users\Admin\AppData\Local\Temp\dXNlcg==.msi"
          3⤵
          • Enumerates connected drives
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: GetForegroundWindowSpam
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of FindShellTrayWindow
          PID:916
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:1948
    • C:\Windows\system32\DrvInst.exe
      DrvInst.exe "1" "200" "STORAGE\VolumeSnapshot\HarddiskVolumeSnapshot19" "" "" "61530dda3" "0000000000000000" "00000000000003E0" "00000000000003D4"
      1⤵
      • Drops file in Windows directory
      • Modifies data under HKEY_USERS
      • Suspicious use of AdjustPrivilegeToken
      PID:2736

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          f77b55d.rbs

          • Path C:\Config.Msi\f77b55d.rbs
          • Size 6KB
          • SHA256 b15de284b5e2a7aca2034f0ef6ebce413c6c4a8664044ca24d613f3df47728ff
          • MD5 SHA1 SHA512 SSDEEP

          07298EE8EBA9732300AE62BDCA6B6898

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\07298EE8EBA9732300AE62BDCA6B6898
          • Size 1KB
          • SHA256 2e7bf16cc22485a7bbe2aa8696750761b0ae39be3b2fe9d0cc6d4ef73491425c
          • MD5 SHA1 SHA512

          07298EE8EBA9732300AE62BDCA6B6898

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\07298EE8EBA9732300AE62BDCA6B6898
          • Size 312B
          • SHA256 7853aff454af2d1e7094b4b2010f315d28de38c2c72431e7bf99c95e19269b92
          • MD5 SHA1 SHA512

          94308059B57B3142E455B38A6EB92015

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
          • Size 342B
          • SHA256 96fc478a58e09e9a9534667735fc3786866262754b9e64a512fef01502db0b69
          • MD5 SHA1 SHA512

          Cab5959.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\Cab5959.tmp
          • Size 70KB
          • SHA256 b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f
          • MD5 SHA1 SHA512 SSDEEP

          Tar941A.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\Tar941A.tmp
          • Size 181KB
          • SHA256 8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8
          • MD5 SHA1 SHA512 SSDEEP

          dXNlcg==.msi

          • Path C:\Users\Admin\AppData\Local\Temp\dXNlcg==.msi
          • Size 22.3MB
          • SHA256 96811ea4f9266ba8ee5c758c146fbc84f3cfe5ec4c5c966b5885e11b5f696f74
          • MD5 SHA1 SHA512 SSDEEP

          MSIB72B.tmp

          • Path C:\Windows\Installer\MSIB72B.tmp
          • Size 193KB
          • SHA256 dbe502732e67c80c03fba12a885f3c68023eeff31fcde8170f4733d8261b540e
          • MD5 SHA1 SHA512 SSDEEP

          memory/1536-135-0x0000000076C90000-0x0000000076CD7000-memory.dmp

          memory/1536-130-0x0000000000090000-0x0000000000099000-memory.dmp

          memory/1536-132-0x0000000001AF0000-0x0000000001EF0000-memory.dmp

          memory/1536-133-0x0000000077010000-0x00000000771B9000-memory.dmp

          memory/2128-127-0x0000000077010000-0x00000000771B9000-memory.dmp

          memory/2128-126-0x0000000005A40000-0x0000000005E40000-memory.dmp

          memory/2128-129-0x0000000076C90000-0x0000000076CD7000-memory.dmp

          memory/2128-125-0x0000000005A40000-0x0000000005E40000-memory.dmp