Analysis

  • max time kernel
    64s
  • max time network
    138s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    03-10-2022 09:14

General

  • Target

    Inquiry_________________________________________________________________________________________.exe

  • Size

    7KB

  • MD5

    d5e6d91cbd4ae175f42b367d9c93d518

  • SHA1

    b4e93a6d5b063db5acdb77548d088b3426a3b1d7

  • SHA256

    2771e93e3caecd5a636083b4992aba9c96c839958f148455754f3de1ba7b517b

  • SHA512

    fd3f3bb993469a55d70d77c8dc662b8667290c886fc6c312cae2a010a05887c5bc2912c35d6366ef67ff3b773f051331986862cbdd30172717cb33030eea0edb

  • SSDEEP

    96:nO1eHUD8npvUJS8yWLHyLXMIzlIRzfsRQ+pw2vKDedqS7zNtR:O1HDspMrLHyLXpzStfV+plCDehdX

Malware Config

Signatures

  • AgentTesla

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

  • 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.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies system certificate store 2 TTPs 6 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Inquiry_________________________________________________________________________________________.exe
    "C:\Users\Admin\AppData\Local\Temp\Inquiry_________________________________________________________________________________________.exe"
    1⤵
    • Accesses Microsoft Outlook profiles
    • Adds Run key to start application
    • Modifies system certificate store
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    • outlook_office_path
    • outlook_win_path
    PID:1652
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -enc UwB0AGEAcgB0AC0AUwBsAGUAZQBwACAALQBTAGUAYwBvAG4AZABzACAAMwAwAA==
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1008

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Modify Registry

2
T1112

Install Root Certificate

1
T1130

Credential Access

Credentials in Files

3
T1081

Discovery

System Information Discovery

1
T1082

Collection

Data from Local System

3
T1005

Email Collection

1
T1114

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1008-58-0x0000000000000000-mapping.dmp
  • memory/1008-60-0x000000006EF20000-0x000000006F4CB000-memory.dmp
    Filesize

    5.7MB

  • memory/1008-61-0x000000006EF20000-0x000000006F4CB000-memory.dmp
    Filesize

    5.7MB

  • memory/1008-62-0x000000006EF20000-0x000000006F4CB000-memory.dmp
    Filesize

    5.7MB

  • memory/1652-54-0x0000000000FA0000-0x0000000000FA8000-memory.dmp
    Filesize

    32KB

  • memory/1652-55-0x00000000757A1000-0x00000000757A3000-memory.dmp
    Filesize

    8KB

  • memory/1652-56-0x0000000005090000-0x0000000005146000-memory.dmp
    Filesize

    728KB

  • memory/1652-57-0x00000000058F0000-0x0000000005982000-memory.dmp
    Filesize

    584KB

  • memory/1652-63-0x0000000004F50000-0x0000000004F8A000-memory.dmp
    Filesize

    232KB