Analysis

  • max time kernel
    62s
  • max time network
    137s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    20-09-2022 07:18

General

  • Target

    Inquiry-doc074389246783.exe

  • Size

    21KB

  • MD5

    35cc4765d727bf4b90d8995fa2fc76a1

  • SHA1

    a11d84bf91ec714ff173a3696efe6313d444e0fc

  • SHA256

    ea8df8dbe183507d1a924a7af3ed3e394f61830745074659744cbf6e60724891

  • SHA512

    c422afdb3f3651cddef4d34c5895ff272b5e75041ad5b102790accd25703a41a1f77958ccf53d9baaa2d9e623435e934d4bff095696a41b3e50847cadc628a0f

  • SSDEEP

    384:lLaqknFcv/8hQdCreXXR9hkNkCcw9Uh+ET:5nkFnE9AkbE+

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    ftp
  • Host:
    %2B
  • Port:
    21
  • Username:
    application/x-www-form-urlencoded
  • Password:
    image/jpg
C2

p=

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 6 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-doc074389246783.exe
    "C:\Users\Admin\AppData\Local\Temp\Inquiry-doc074389246783.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:2032
    • 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:524

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/524-60-0x000000006F950000-0x000000006FEFB000-memory.dmp

    Filesize

    5.7MB

  • memory/524-61-0x000000006F950000-0x000000006FEFB000-memory.dmp

    Filesize

    5.7MB

  • memory/524-62-0x000000006F950000-0x000000006FEFB000-memory.dmp

    Filesize

    5.7MB

  • memory/2032-54-0x0000000001010000-0x000000000101C000-memory.dmp

    Filesize

    48KB

  • memory/2032-55-0x0000000075A71000-0x0000000075A73000-memory.dmp

    Filesize

    8KB

  • memory/2032-56-0x0000000000620000-0x00000000006E0000-memory.dmp

    Filesize

    768KB

  • memory/2032-57-0x0000000005160000-0x00000000051F2000-memory.dmp

    Filesize

    584KB

  • memory/2032-63-0x0000000000DF0000-0x0000000000E2A000-memory.dmp

    Filesize

    232KB