Analysis

  • max time kernel
    122s
  • max time network
    117s
  • platform
    windows10_x64
  • resource
    win10
  • submitted
    13-07-2020 06:22

General

  • Target

    090000900000000000.exe

  • Size

    333KB

  • MD5

    9ea4dbfd0ceab41b5956d1dbda6a0319

  • SHA1

    b6a2c2baf9623987e7ac49fa203a1fb2e4d555e1

  • SHA256

    34f5833d282f7d896be6f560a66acfe0386ae8aea8a4724debe0b57ec7b74520

  • SHA512

    2640d9353c76060694b809845f195637fe70d9f35b1d10fec18c54422a4d9b129b08d84ff125b9e7e96759c426e4c42d938c676665b997331488581f3fbd59f5

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mail.petekyazilim.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    petek19721972

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.petekyazilim.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    petek19721972

Signatures

  • AgentTesla

    Agent Tesla is a remote access tool (RAT) written in visual basic.

  • AgentTesla Payload 2 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.

  • 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 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\090000900000000000.exe
    "C:\Users\Admin\AppData\Local\Temp\090000900000000000.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3236
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\fcsymhsOTqq" /XML "C:\Users\Admin\AppData\Local\Temp\tmp818F.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:3492
    • C:\Users\Admin\AppData\Local\Temp\090000900000000000.exe
      "{path}"
      2⤵
        PID:3240
      • C:\Users\Admin\AppData\Local\Temp\090000900000000000.exe
        "{path}"
        2⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2572
    • C:\Windows\Microsoft.Net\Framework64\v3.0\WPF\PresentationFontCache.exe
      C:\Windows\Microsoft.Net\Framework64\v3.0\WPF\PresentationFontCache.exe
      1⤵
        PID:3360

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\090000900000000000.exe.log

        MD5

        c33b4293a0023b388d1a816aba4901f1

        SHA1

        a793fe7d4694457873aa26a454a5d4b0207d7d54

        SHA256

        5b4a63ea1ce7cc18eb1be775ffb52b342bb678f265c88d4518d8e1fe44a55234

        SHA512

        d04308b55218a71bd09562de76a8030e6327fb0143695e01cb25fb5ad6a9b3715425e4782dc5d27b0aaaf0d71048f0886099df6ce87e29e796abe3727fd1ba53

      • C:\Users\Admin\AppData\Local\Temp\tmp818F.tmp

        MD5

        686ba400ed15a11333ad9b05d9b4b638

        SHA1

        5faad217c1990025191ec5db40afa1145eeca0c6

        SHA256

        679951d541cb86476198abdb6ecd8631334fdfc36038b3b7b5cbcf4232d35ce1

        SHA512

        0dad4df01c84c27ca6cb4e07c2ee62cfc8132d94dde567859296cd00dc31478838c017139c4d6a7b1d67c02a8ffb78ea691efa5ed327f1a67797927958f58e73

      • memory/2572-2-0x0000000000400000-0x000000000044C000-memory.dmp

        Filesize

        304KB

      • memory/2572-3-0x00000000004470AE-mapping.dmp

      • memory/3492-0-0x0000000000000000-mapping.dmp