Analysis

  • max time kernel
    173s
  • max time network
    33s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    30-11-2022 19:21

General

  • Target

    b3bcfa95470b746baa5c5460e70ddda1c1392c40aacce02214f2b2b7f9028435.exe

  • Size

    788KB

  • MD5

    ad3817edcf73c14ba5ade80473528672

  • SHA1

    216dd18463fe1ca1a1fa017ca695699e43ca5776

  • SHA256

    b3bcfa95470b746baa5c5460e70ddda1c1392c40aacce02214f2b2b7f9028435

  • SHA512

    2ea208e080829e0b93fb33f163440b508c2610d0ca8d20a2d2f39d72b81337b897b5da50fef64cee1a905aed74cf82b806a979abff0c0c68e5fded4cf0a55897

  • SSDEEP

    12288:890DCE+DWjKEQo2QrhOm6nJ34QrqRZK6Tq3Ec8HpLwF4Ge9G0MkcWBSVWde/icqJ:89uoDcVr1SJ3TD6TYEiF4Gz8jS

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    server122.web-hosting.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    OJZg,yx3yFHQ

Signatures

  • AgentTesla

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

  • AgentTesla payload 6 IoCs
  • 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 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 23 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b3bcfa95470b746baa5c5460e70ddda1c1392c40aacce02214f2b2b7f9028435.exe
    "C:\Users\Admin\AppData\Local\Temp\b3bcfa95470b746baa5c5460e70ddda1c1392c40aacce02214f2b2b7f9028435.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:564
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\rtjcBPOueBlox" /XML "C:\Users\Admin\AppData\Local\Temp\tmp224.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:284
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
      2⤵
        PID:2036
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
        2⤵
          PID:1576

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Temp\tmp224.tmp

        Filesize

        1KB

        MD5

        1ddd1639919ead18a67a07052d2f0ae3

        SHA1

        b165a45ea77621c4b2cc6917234bdef47e0b56a9

        SHA256

        6549c2464c8ff39490682f2a4e5e49483fa9cfc00a1f7f38409a9edc8022f6d0

        SHA512

        3c27fc22d358caaaafbf5ede3259b034f64ec53d52078246f49c085bf2b60ae5a4875d8216bf57728cc7e8c96f49e505d7577f70e06d0c49798200931d471975

      • memory/284-58-0x0000000000000000-mapping.dmp

      • memory/564-54-0x0000000000C20000-0x0000000000CEA000-memory.dmp

        Filesize

        808KB

      • memory/564-55-0x0000000075D01000-0x0000000075D03000-memory.dmp

        Filesize

        8KB

      • memory/564-56-0x0000000000400000-0x000000000040A000-memory.dmp

        Filesize

        40KB

      • memory/564-57-0x0000000005180000-0x0000000005208000-memory.dmp

        Filesize

        544KB

      • memory/1576-60-0x0000000000400000-0x000000000045A000-memory.dmp

        Filesize

        360KB

      • memory/1576-61-0x0000000000400000-0x000000000045A000-memory.dmp

        Filesize

        360KB

      • memory/1576-63-0x0000000000400000-0x000000000045A000-memory.dmp

        Filesize

        360KB

      • memory/1576-65-0x0000000000400000-0x000000000045A000-memory.dmp

        Filesize

        360KB

      • memory/1576-64-0x0000000000400000-0x000000000045A000-memory.dmp

        Filesize

        360KB

      • memory/1576-66-0x00000000004548EE-mapping.dmp

      • memory/1576-68-0x0000000000400000-0x000000000045A000-memory.dmp

        Filesize

        360KB

      • memory/1576-70-0x0000000000400000-0x000000000045A000-memory.dmp

        Filesize

        360KB