Analysis

  • max time kernel
    28s
  • max time network
    19s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    03-11-2024 12:53

General

  • Target

    a9fa025fe912c8ad5e6566c675e045732c4d89f4187bfd94c4e916dd9fe25417.msi

  • Size

    1.3MB

  • MD5

    f83ed040b4e52088817df73ef51fe0d3

  • SHA1

    3d011c54ae9a66ef2a865afd694712b338feed5d

  • SHA256

    a9fa025fe912c8ad5e6566c675e045732c4d89f4187bfd94c4e916dd9fe25417

  • SHA512

    c4fe6171f4590a3f588bba5818d05ed525619fc3333f911ea785bebea11788f144b71974254f6dbf270a2b89f9c21698d882d378274cf63005223fe5618d15f0

  • SSDEEP

    24576:ezTxLN3YlMvZCFlp8zBQSc0ZoCvqKox0ECIgYmfLVYeBZr7AL7EveuFPY:ezz3YuW8zBQSc0ZnSKmZKumZr7AfEvLY

Malware Config

Signatures

  • 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 11 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 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 2 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\a9fa025fe912c8ad5e6566c675e045732c4d89f4187bfd94c4e916dd9fe25417.msi
    1⤵
    • Enumerates connected drives
    • Event Triggered Execution: Installer Packages
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    PID:1492
  • 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:2320
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding AD42C92085F34696D0D94911277B0ED0 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      PID:2636
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding DB69388981A74EF14EE9DCC48E5F3303
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      PID:2556
    • C:\Windows\Installer\MSI5525.tmp
      "C:\Windows\Installer\MSI5525.tmp" C:/Windows/System32/rundll32.exe C:\Users\Admin\AppData\Local\glosar\beta.dll, homq
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      PID:1832
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
      PID:2960
    • C:\Windows\system32\DrvInst.exe
      DrvInst.exe "1" "200" "STORAGE\VolumeSnapshot\HarddiskVolumeSnapshot19" "" "" "61530dda3" "0000000000000000" "00000000000003EC" "00000000000005D4"
      1⤵
      • Drops file in Windows directory
      • Modifies data under HKEY_USERS
      PID:1232
    • C:\Windows\System32\rundll32.exe
      "C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Local\glosar\beta.dll, homq
      1⤵
      • Loads dropped DLL
      • Suspicious behavior: EnumeratesProcesses
      PID:1812

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Config.Msi\f784ab8.rbs

      Filesize

      1KB

      MD5

      c4f0beac34558475087bd747af7951e5

      SHA1

      01bb4ca7672152de4d6f1a967ccb3b76c28366e2

      SHA256

      738ae1be95c246495682ba351238119f04a88119d131441165d16e1cf84c1e1a

      SHA512

      b5a0f4d32228fa8619ed126b5ceb72323e9c42366973fe6b8d5767a37e65ab4a511500e54a492d59492d567b845ab82c1414c320de35620bbe12a3dd1c57f479

    • C:\Users\Admin\AppData\Local\Temp\MSIEF10.tmp

      Filesize

      436KB

      MD5

      475d20c0ea477a35660e3f67ecf0a1df

      SHA1

      67340739f51e1134ae8f0ffc5ae9dd710e8e3a08

      SHA256

      426e6cf199a8268e8a7763ec3a4dd7add982b28c51d89ebea90ca792cbae14dd

      SHA512

      99525aaab2ab608134b5d66b5313e7fc3c2e2877395c5c171897d7a6c66efb26b606de1a4cb01118c2738ea4b6542e4eb4983e631231b3f340bf85e509a9589e

    • C:\Users\Admin\AppData\Local\glosar\beta.dll

      Filesize

      364KB

      MD5

      a1c84c14a82f2cbb7e9a5f253d721159

      SHA1

      3aa5e70111c290c45daac06984281dfb5439115b

      SHA256

      53e65d071870f127bc6bf6c8e8ddfd131558153513976744ee7460eeb766d081

      SHA512

      f76691853fa45d93246dfd8569af5ec7e66fdd7536241b92ee10bb9202b0502e66dfd030fe539956fb28fe20e71b33cae524038c356facf555d4a130c64665ed

    • C:\Windows\Installer\MSI5525.tmp

      Filesize

      389KB

      MD5

      b9545ed17695a32face8c3408a6a3553

      SHA1

      f6c31c9cd832ae2aebcd88e7b2fa6803ae93fc83

      SHA256

      1e0e63b446eecf6c9781c7d1cae1f46a3bb31654a70612f71f31538fb4f4729a

      SHA512

      f6d6dc40dcba5ff091452d7cc257427dcb7ce2a21816b4fec2ee249e63246b64667f5c4095220623533243103876433ef8c12c9b612c0e95fdfffe41d1504e04

    • memory/1832-37-0x0000000000190000-0x0000000000192000-memory.dmp

      Filesize

      8KB