Analysis

  • max time kernel
    151s
  • max time network
    19s
  • platform
    windows7_x64
  • resource
    win7v20210410
  • submitted
    21-04-2021 06:36

General

  • Target

    HTC-343467.exe

  • Size

    781KB

  • MD5

    2fbb52eaa4d139882e67b1b4f5bd9744

  • SHA1

    fce4de8aba1ab5325b1d4e57678f4e08dcb68d00

  • SHA256

    f1624469028a2d29ddceec7ca539472c54787b4047bee8c60cfc8ee2b0c4d89c

  • SHA512

    380732049e4c8481265325289e9c233a0e4ef553cf55cdfe62d1a20262e6bba8e531d907e5ddfc8da316170c70e0b3ab3b41426d9fcbc7c4d88eea68284a526b

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.syntrnomh.com
  • Port:
    587
  • Username:
    rainie.wang@syntrnomh.com
  • Password:
    Tdn$AuZro1

Signatures

  • AgentTesla

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

  • AgentTesla Payload 2 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\HTC-343467.exe
    "C:\Users\Admin\AppData\Local\Temp\HTC-343467.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1872
    • C:\Users\Admin\AppData\Local\Temp\HTC-343467.exe
      "{path}"
      2⤵
        PID:1680
      • C:\Users\Admin\AppData\Local\Temp\HTC-343467.exe
        "{path}"
        2⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:532
        • C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe
          dw20.exe -x -s 520
          3⤵
          • Suspicious behavior: GetForegroundWindowSpam
          PID:924

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/532-64-0x000000000043735E-mapping.dmp
    • memory/532-63-0x0000000000400000-0x000000000043C000-memory.dmp
      Filesize

      240KB

    • memory/532-67-0x0000000000140000-0x0000000000141000-memory.dmp
      Filesize

      4KB

    • memory/924-68-0x0000000000000000-mapping.dmp
    • memory/924-70-0x0000000000410000-0x0000000000411000-memory.dmp
      Filesize

      4KB

    • memory/1872-60-0x0000000075631000-0x0000000075633000-memory.dmp
      Filesize

      8KB

    • memory/1872-61-0x0000000000A00000-0x0000000000A01000-memory.dmp
      Filesize

      4KB

    • memory/1872-62-0x000000007EF40000-0x000000007EF41000-memory.dmp
      Filesize

      4KB

    • memory/1872-66-0x0000000000A01000-0x0000000000A02000-memory.dmp
      Filesize

      4KB