Analysis

  • max time kernel
    66s
  • max time network
    130s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    28/10/2022, 09:25

General

  • Target
    Ir2ZYvvQglAg4Rf.exe
  • Size 533KB
  • Sample221028-ldlm9sffbm
  • SHA256 d65163defaea092a6be7661cdde670e18e54ae79790ffa5f64385daa5ceccabe
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • snakekeylogger

C2
  • https://api.telegram.org/bot5542941782:AAFlsn_FCfYT7D_ZthXK_Udd4a15AE58_Wg/sendMessage?chat_id=2054148913

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
  • 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.

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Ir2ZYvvQglAg4Rf.exe
    "C:\Users\Admin\AppData\Local\Temp\Ir2ZYvvQglAg4Rf.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1268
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\cVFbvb.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1788
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\cVFbvb" /XML "C:\Users\Admin\AppData\Local\Temp\tmp3E1A.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:960
    • C:\Users\Admin\AppData\Local\Temp\Ir2ZYvvQglAg4Rf.exe
      "C:\Users\Admin\AppData\Local\Temp\Ir2ZYvvQglAg4Rf.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:1532

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        tmp3E1A.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\tmp3E1A.tmp
        • Size 1KB
        • SHA256 4cdbe78676bfa5ae85001d89e8b2e1791e9fffb84dba68b5cb8bc2a6aba01541
        • MD5 SHA1 SHA512

        memory/1268-63-0x0000000000F00000-0x0000000000F26000-memory.dmp

        memory/1268-54-0x00000000010B0000-0x000000000113C000-memory.dmp

        memory/1268-58-0x0000000004B80000-0x0000000004BE0000-memory.dmp

        memory/1268-57-0x0000000000590000-0x000000000059C000-memory.dmp

        memory/1268-56-0x00000000005B0000-0x00000000005C8000-memory.dmp

        memory/1268-55-0x0000000074F41000-0x0000000074F43000-memory.dmp

        memory/1532-67-0x0000000000400000-0x0000000000426000-memory.dmp

        memory/1532-64-0x0000000000400000-0x0000000000426000-memory.dmp

        memory/1532-65-0x0000000000400000-0x0000000000426000-memory.dmp

        memory/1532-69-0x0000000000400000-0x0000000000426000-memory.dmp

        memory/1532-70-0x0000000000400000-0x0000000000426000-memory.dmp

        memory/1532-73-0x0000000000400000-0x0000000000426000-memory.dmp

        memory/1532-75-0x0000000000400000-0x0000000000426000-memory.dmp

        memory/1788-77-0x0000000073B30000-0x00000000740DB000-memory.dmp

        memory/1788-78-0x0000000073B30000-0x00000000740DB000-memory.dmp