Resubmissions

23-05-2024 18:22

240523-wzxmrsbf95 10

Analysis

  • max time kernel
    135s
  • max time network
    126s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-05-2024 18:22

General

  • Target

    HSBCR22022121218457670.exe

  • Size

    1.0MB

  • MD5

    e4731bccb029c314b3300f344c0c9999

  • SHA1

    9516f870e52282d86708ba4530a9c38d9440d46c

  • SHA256

    9a2ebcdc6008be237ef88cb4042305090c4c4e9202a6805d76f9aaaa6a84def9

  • SHA512

    6d7c34b814d80b14f3240dd43728ec97a90b208e612349e5fb955007f111a8ac3a60ad6f9e75dd52899f1c454af5f9bbee9ed9d5d0768ef31ae313310ea3a2bf

  • SSDEEP

    24576:HAHnh+eWsN3skA4RV1Hom2KXMmHafgVPuwRXHsYA5:6h+ZkldoPK8Yaf426X+

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    ftp
  • Host:
    ftp://ftp.fosna.net
  • Port:
    21
  • Username:
    [email protected]
  • Password:
    (=8fPSH$KO_!

Signatures

  • AgentTesla

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

  • 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
  • Program crash 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SendNotifyMessage 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\HSBCR22022121218457670.exe
    "C:\Users\Admin\AppData\Local\Temp\HSBCR22022121218457670.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:4312
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
      "C:\Users\Admin\AppData\Local\Temp\HSBCR22022121218457670.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4596
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4312 -s 692
      2⤵
      • Program crash
      PID:2036
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 4312 -ip 4312
    1⤵
      PID:3004

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/4312-10-0x0000000003CF0000-0x0000000003CF4000-memory.dmp

      Filesize

      16KB

    • memory/4596-11-0x0000000000400000-0x0000000000442000-memory.dmp

      Filesize

      264KB

    • memory/4596-12-0x00000000745FE000-0x00000000745FF000-memory.dmp

      Filesize

      4KB

    • memory/4596-13-0x0000000005AA0000-0x0000000006044000-memory.dmp

      Filesize

      5.6MB

    • memory/4596-14-0x00000000055F0000-0x0000000005656000-memory.dmp

      Filesize

      408KB

    • memory/4596-15-0x00000000745F0000-0x0000000074DA0000-memory.dmp

      Filesize

      7.7MB

    • memory/4596-16-0x00000000068A0000-0x00000000068F0000-memory.dmp

      Filesize

      320KB

    • memory/4596-17-0x0000000006990000-0x0000000006A22000-memory.dmp

      Filesize

      584KB

    • memory/4596-18-0x0000000006930000-0x000000000693A000-memory.dmp

      Filesize

      40KB

    • memory/4596-19-0x00000000745FE000-0x00000000745FF000-memory.dmp

      Filesize

      4KB

    • memory/4596-20-0x00000000745F0000-0x0000000074DA0000-memory.dmp

      Filesize

      7.7MB