Analysis

  • max time kernel
    154s
  • max time network
    227s
  • platform
    windows10_x64
  • resource
    win10-en-20210920
  • submitted
    19-10-2021 09:49

General

  • Target

    eLJyojaW0RFPJhK.exe

  • Size

    278KB

  • MD5

    6c218e353026cac8c9aa59fc494a14b9

  • SHA1

    eaed3e0789b749dc2e188fd26a9f9cbc50314d5f

  • SHA256

    b2acbb9c56fba0cbe5cabd76b5df537059df5644958924ec3ee7d8578666c9ba

  • SHA512

    3cbc6e0244e9178762afb5b13b3553204c30f6ada1f2ee1b2deb9764a2156ab6d0ab2741087915c7351811aefaeb1c364d9d256ae571fc7a8948b5d75fae4ff1

Malware Config

Extracted

Family

snakekeylogger

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.vivaldi.net
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    #munachimso#

Signatures

  • Snake Keylogger

    Keylogger and Infostealer first seen in November 2020.

  • 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 3 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 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\eLJyojaW0RFPJhK.exe
    "C:\Users\Admin\AppData\Local\Temp\eLJyojaW0RFPJhK.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2072
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\qZpGffyegdDdR" /XML "C:\Users\Admin\AppData\Local\Temp\tmp72CB.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2616
    • C:\Users\Admin\AppData\Local\Temp\eLJyojaW0RFPJhK.exe
      "C:\Users\Admin\AppData\Local\Temp\eLJyojaW0RFPJhK.exe"
      2⤵
        PID:744
      • C:\Users\Admin\AppData\Local\Temp\eLJyojaW0RFPJhK.exe
        "C:\Users\Admin\AppData\Local\Temp\eLJyojaW0RFPJhK.exe"
        2⤵
        • Accesses Microsoft Outlook profiles
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • outlook_office_path
        • outlook_win_path
        PID:1244

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Execution

    Scheduled Task

    1
    T1053

    Persistence

    Scheduled Task

    1
    T1053

    Privilege Escalation

    Scheduled Task

    1
    T1053

    Credential Access

    Credentials in Files

    3
    T1081

    Discovery

    System Information Discovery

    1
    T1082

    Collection

    Data from Local System

    3
    T1005

    Email Collection

    1
    T1114

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\eLJyojaW0RFPJhK.exe.log
      MD5

      0c2899d7c6746f42d5bbe088c777f94c

      SHA1

      622f66c5f7a3c91b28a9f43ce7c6cabadbf514f1

      SHA256

      5b0b99740cadaeff7b9891136644b396941547e20cc7eea646560d0dad5a5458

      SHA512

      ab7a3409ed4b6ca00358330a3aa4ef6de7d81eb21a5e24bb629ef6a7c7c4e2a70ca3accfbc989ed6e495fdb8eb6203a26d6f2a37b2a5809af4276af375b49078

    • memory/1244-127-0x0000000000400000-0x0000000000424000-memory.dmp
      Filesize

      144KB

    • memory/1244-135-0x0000000006490000-0x0000000006491000-memory.dmp
      Filesize

      4KB

    • memory/1244-134-0x00000000050E0000-0x00000000050E1000-memory.dmp
      Filesize

      4KB

    • memory/1244-128-0x000000000041F83E-mapping.dmp
    • memory/2072-120-0x0000000005990000-0x0000000005E8E000-memory.dmp
      Filesize

      5.0MB

    • memory/2072-122-0x0000000005990000-0x0000000005E8E000-memory.dmp
      Filesize

      5.0MB

    • memory/2072-123-0x0000000009B40000-0x0000000009B48000-memory.dmp
      Filesize

      32KB

    • memory/2072-124-0x0000000007430000-0x0000000007431000-memory.dmp
      Filesize

      4KB

    • memory/2072-125-0x00000000073F0000-0x0000000007430000-memory.dmp
      Filesize

      256KB

    • memory/2072-121-0x0000000005990000-0x0000000005E8E000-memory.dmp
      Filesize

      5.0MB

    • memory/2072-115-0x0000000000FC0000-0x0000000000FC1000-memory.dmp
      Filesize

      4KB

    • memory/2072-119-0x0000000005840000-0x0000000005841000-memory.dmp
      Filesize

      4KB

    • memory/2072-118-0x0000000005850000-0x0000000005851000-memory.dmp
      Filesize

      4KB

    • memory/2072-117-0x0000000005E90000-0x0000000005E91000-memory.dmp
      Filesize

      4KB

    • memory/2616-126-0x0000000000000000-mapping.dmp