Analysis

  • max time kernel
    120s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    02-10-2024 01:28

General

  • Target

    9bcc5591013f066f47701388e95202aa53483c1b73321eecedafd30de2eb381e.exe

  • Size

    723KB

  • MD5

    df30947662e982996810396f8998687c

  • SHA1

    ab1cca67c1d71f95e516a21995d2965761bc6829

  • SHA256

    9bcc5591013f066f47701388e95202aa53483c1b73321eecedafd30de2eb381e

  • SHA512

    41e148f5bd8fe19754f6c676323a1b022c0e79d3be5c5de8b3fc030e2dedb46877e5ff792da2965fc8cfc701724ea914a61a80d43590e77421820d22bb484b9a

  • SSDEEP

    12288:ZFw5wFD3n6UwXUTCBvvFfg6DUT0/PSnyUt9H+nruF39h9sAFJEyvQXDkR:ZF4K9wXKIvFfZRGyI9enr6H93bnQXW

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.

  • Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Uses the VBS compiler for execution 1 TTPs
  • 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
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 25 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\9bcc5591013f066f47701388e95202aa53483c1b73321eecedafd30de2eb381e.exe
    "C:\Users\Admin\AppData\Local\Temp\9bcc5591013f066f47701388e95202aa53483c1b73321eecedafd30de2eb381e.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3068
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\9bcc5591013f066f47701388e95202aa53483c1b73321eecedafd30de2eb381e.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1488
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\OsYPcQX.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2596
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\OsYPcQX" /XML "C:\Users\Admin\AppData\Local\Temp\tmpB319.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2968
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
      2⤵
        PID:1292
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
        2⤵
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1936

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\tmpB319.tmp

      Filesize

      1KB

      MD5

      ba7f867dca704f8d22e8c05563facade

      SHA1

      2ff73738ecdcf5320868607938ed83c904a43a03

      SHA256

      889a19ad89cf446d334a0d27e0210864be408df71e5c718110830ca17059e4fe

      SHA512

      06eb49bbe010330ac94e4162d6edb3ca6ad0ea82760b8b9afa70ae842cace86a5c467f96d96544b38cb07c9b67d2904d8f7354549743332627b11a278f155d42

    • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\S32CYIZDZW5R2J6NSFSN.temp

      Filesize

      7KB

      MD5

      f1d6f9d1ebeadc393d5fac57d0875d71

      SHA1

      de1eeb0a93525c30c5152f3179bdb05ce676026a

      SHA256

      5a24ee5b547a386b797a8835421ce6809244fea30a26f27dea9241a2024e1028

      SHA512

      9ca0c6afb944b35aa1682562ae55b2524c5e7e81425e672f844968351a50d1f3ffe1467d6dbe61314d0eb6812a106743aa61fbc78ddc0b2bf9751378b840c104

    • memory/1936-27-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

      Filesize

      4KB

    • memory/1936-29-0x0000000000400000-0x0000000000442000-memory.dmp

      Filesize

      264KB

    • memory/1936-19-0x0000000000400000-0x0000000000442000-memory.dmp

      Filesize

      264KB

    • memory/1936-21-0x0000000000400000-0x0000000000442000-memory.dmp

      Filesize

      264KB

    • memory/1936-23-0x0000000000400000-0x0000000000442000-memory.dmp

      Filesize

      264KB

    • memory/1936-25-0x0000000000400000-0x0000000000442000-memory.dmp

      Filesize

      264KB

    • memory/1936-28-0x0000000000400000-0x0000000000442000-memory.dmp

      Filesize

      264KB

    • memory/1936-30-0x0000000000400000-0x0000000000442000-memory.dmp

      Filesize

      264KB

    • memory/3068-6-0x0000000000AB0000-0x0000000000B34000-memory.dmp

      Filesize

      528KB

    • memory/3068-1-0x0000000000ED0000-0x0000000000F88000-memory.dmp

      Filesize

      736KB

    • memory/3068-0-0x0000000073D1E000-0x0000000073D1F000-memory.dmp

      Filesize

      4KB

    • memory/3068-2-0x0000000073D10000-0x00000000743FE000-memory.dmp

      Filesize

      6.9MB

    • memory/3068-3-0x00000000009D0000-0x00000000009EE000-memory.dmp

      Filesize

      120KB

    • memory/3068-5-0x0000000073D10000-0x00000000743FE000-memory.dmp

      Filesize

      6.9MB

    • memory/3068-4-0x0000000073D1E000-0x0000000073D1F000-memory.dmp

      Filesize

      4KB

    • memory/3068-31-0x0000000073D10000-0x00000000743FE000-memory.dmp

      Filesize

      6.9MB