Analysis

  • max time kernel
    178s
  • max time network
    307s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 12:02

General

  • Target

    MV ASPL TBN.exe

  • Size

    166KB

  • MD5

    28fa19adec2fa9a8d1e8d67310d58f0b

  • SHA1

    58e964eec035d120bfdd5c8968f227fc516f8893

  • SHA256

    9c0cab2fc38f52243eff7e3fa43e088d76b0a77d1253230c0d9b28c8f64f611d

  • SHA512

    f61c3ce86850e2ccb50fb2555229b52f0300088294e7f419169a4d309ef0c63807e7cb12bc47fe04d78e7b1b2fb71952c08483c17119d439138d17695435226d

  • SSDEEP

    384:eHHVieHKQN6dmOSACCB0W77EldnvGNDj:eHH5N64OSACCBSdnvGNn

Malware Config

Signatures

  • Snake Keylogger

    Keylogger and Infostealer first seen in November 2020.

  • Snake Keylogger payload 6 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 local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 2 TTPs

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

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\MV ASPL TBN.exe
    "C:\Users\Admin\AppData\Local\Temp\MV ASPL TBN.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:620
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -enc UwB0AGEAcgB0AC0AUwBsAGUAZQBwACAALQBTAGUAYwBvAG4AZABzACAAMwAwAA==
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1916
    • C:\Users\Admin\AppData\Local\Temp\MV ASPL TBN.exe
      "C:\Users\Admin\AppData\Local\Temp\MV ASPL TBN.exe"
      2⤵
        PID:1620
      • C:\Users\Admin\AppData\Local\Temp\MV ASPL TBN.exe
        "C:\Users\Admin\AppData\Local\Temp\MV ASPL TBN.exe"
        2⤵
        • Accesses Microsoft Outlook profiles
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • outlook_office_path
        • outlook_win_path
        PID:1900

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/620-55-0x0000000075491000-0x0000000075493000-memory.dmp

      Filesize

      8KB

    • memory/620-56-0x0000000005B20000-0x0000000005D3C000-memory.dmp

      Filesize

      2.1MB

    • memory/620-54-0x0000000000F80000-0x0000000000FB0000-memory.dmp

      Filesize

      192KB

    • memory/1900-68-0x0000000000400000-0x0000000000426000-memory.dmp

      Filesize

      152KB

    • memory/1900-71-0x0000000000400000-0x0000000000426000-memory.dmp

      Filesize

      152KB

    • memory/1900-73-0x0000000000400000-0x0000000000426000-memory.dmp

      Filesize

      152KB

    • memory/1900-69-0x000000000042075E-mapping.dmp

    • memory/1900-62-0x0000000000400000-0x0000000000426000-memory.dmp

      Filesize

      152KB

    • memory/1900-63-0x0000000000400000-0x0000000000426000-memory.dmp

      Filesize

      152KB

    • memory/1900-67-0x0000000000400000-0x0000000000426000-memory.dmp

      Filesize

      152KB

    • memory/1900-65-0x0000000000400000-0x0000000000426000-memory.dmp

      Filesize

      152KB

    • memory/1916-57-0x0000000000000000-mapping.dmp

    • memory/1916-61-0x000000006E6C0000-0x000000006EC6B000-memory.dmp

      Filesize

      5.7MB

    • memory/1916-60-0x000000006E6C0000-0x000000006EC6B000-memory.dmp

      Filesize

      5.7MB

    • memory/1916-59-0x000000006E6C0000-0x000000006EC6B000-memory.dmp

      Filesize

      5.7MB