Analysis

  • max time kernel
    149s
  • max time network
    145s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    01-10-2024 08:09

General

  • Target

    d71bfab9cca5df6a28e12ba51fe5eaf0f9151514b3fd363264513347a8c5cf3a.msi

  • Size

    1.8MB

  • MD5

    3645512add0c8cb24a88d2ffe3fe7620

  • SHA1

    66dbfe6ffc1918f51b28af1abf55df0d1beaefe6

  • SHA256

    d71bfab9cca5df6a28e12ba51fe5eaf0f9151514b3fd363264513347a8c5cf3a

  • SHA512

    85151258ccb3b590716aed87c4a6a24ba74931aab0b378e279d9ab510fce94dfd26632d8ba44975e8136b1a9cc6c190e64c8b223f5f5e4f5b9cb3c6fb4a9429c

  • SSDEEP

    49152:/YM3YuW8zBQSc0ZnSKYZKumZr7AH6odeQCC:bY90ZniK/AHHdvCC

Malware Config

Signatures

  • Blocklisted process makes network request 5 IoCs
  • Enumerates connected drives 3 TTPs 46 IoCs

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

  • Drops file in Windows directory 10 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 10 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 43 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs
  • Uses Volume Shadow Copy service COM API

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

Processes

  • C:\Windows\system32\msiexec.exe
    msiexec.exe /I C:\Users\Admin\AppData\Local\Temp\d71bfab9cca5df6a28e12ba51fe5eaf0f9151514b3fd363264513347a8c5cf3a.msi
    1⤵
    • Enumerates connected drives
    • Event Triggered Execution: Installer Packages
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    PID:2232
  • C:\Windows\system32\msiexec.exe
    C:\Windows\system32\msiexec.exe /V
    1⤵
    • Enumerates connected drives
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2800
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding C124DBDFA70385A727ADFCA6BB27BA54 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      PID:2728
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding DBB971180E351B6E0F52D7F3348C3396
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      PID:2296
    • C:\Windows\Installer\MSI9408.tmp
      "C:\Windows\Installer\MSI9408.tmp" C:/Windows/System32/rundll32.exe C:\Users\Admin\AppData\Roaming\capisp.dll, remi
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      PID:2880
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
      PID:2584
    • C:\Windows\system32\DrvInst.exe
      DrvInst.exe "1" "200" "STORAGE\VolumeSnapshot\HarddiskVolumeSnapshot19" "" "" "61530dda3" "0000000000000000" "00000000000005D8" "00000000000004E4"
      1⤵
      • Drops file in Windows directory
      • Modifies data under HKEY_USERS
      PID:2080
    • C:\Windows\System32\rundll32.exe
      "C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\capisp.dll, remi
      1⤵
      • Blocklisted process makes network request
      • Loads dropped DLL
      • Suspicious behavior: EnumeratesProcesses
      PID:380

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\CabA363.tmp

      Filesize

      70KB

      MD5

      49aebf8cbd62d92ac215b2923fb1b9f5

      SHA1

      1723be06719828dda65ad804298d0431f6aff976

      SHA256

      b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

      SHA512

      bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

    • C:\Users\Admin\AppData\Local\Temp\MSI760A.tmp

      Filesize

      436KB

      MD5

      475d20c0ea477a35660e3f67ecf0a1df

      SHA1

      67340739f51e1134ae8f0ffc5ae9dd710e8e3a08

      SHA256

      426e6cf199a8268e8a7763ec3a4dd7add982b28c51d89ebea90ca792cbae14dd

      SHA512

      99525aaab2ab608134b5d66b5313e7fc3c2e2877395c5c171897d7a6c66efb26b606de1a4cb01118c2738ea4b6542e4eb4983e631231b3f340bf85e509a9589e

    • C:\Users\Admin\AppData\Local\Temp\Tar321.tmp

      Filesize

      181KB

      MD5

      4ea6026cf93ec6338144661bf1202cd1

      SHA1

      a1dec9044f750ad887935a01430bf49322fbdcb7

      SHA256

      8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

      SHA512

      6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

    • C:\Users\Admin\AppData\Roaming\capisp.dll

      Filesize

      1.2MB

      MD5

      70b599f67e97cb878ca7be88e069a82d

      SHA1

      768f8a179fee1f13505c7b772e543b19b29b14c8

      SHA256

      9b7bdb4cb71e84c5cff0923928bf7777a41cb5e0691810ae948304c151c0c1c5

      SHA512

      163c8e0b2676a27f1781e9fdec3c9994ba828c0085b9fdff9df4dd0112da122a5d7f6ca597af396f99c2afadbe438e1ab967dfba34451ee4ba3c59cd244b4985

    • C:\Windows\Installer\MSI9408.tmp

      Filesize

      389KB

      MD5

      b9545ed17695a32face8c3408a6a3553

      SHA1

      f6c31c9cd832ae2aebcd88e7b2fa6803ae93fc83

      SHA256

      1e0e63b446eecf6c9781c7d1cae1f46a3bb31654a70612f71f31538fb4f4729a

      SHA512

      f6d6dc40dcba5ff091452d7cc257427dcb7ce2a21816b4fec2ee249e63246b64667f5c4095220623533243103876433ef8c12c9b612c0e95fdfffe41d1504e04

    • memory/380-43-0x000000033A710000-0x000000033A75A000-memory.dmp

      Filesize

      296KB

    • memory/380-46-0x000000033A710000-0x000000033A75A000-memory.dmp

      Filesize

      296KB

    • memory/380-44-0x0000000001F40000-0x0000000001F7E000-memory.dmp

      Filesize

      248KB

    • memory/380-47-0x0000000001F80000-0x0000000001FCC000-memory.dmp

      Filesize

      304KB

    • memory/380-56-0x000000033A710000-0x000000033A75A000-memory.dmp

      Filesize

      296KB

    • memory/380-73-0x0000000001F80000-0x0000000001FCC000-memory.dmp

      Filesize

      304KB

    • memory/380-74-0x0000000180000000-0x000000018013A000-memory.dmp

      Filesize

      1.2MB

    • memory/2880-37-0x0000000000120000-0x0000000000122000-memory.dmp

      Filesize

      8KB