Analysis

  • max time kernel
    145s
  • max time network
    123s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29-03-2024 18:49

General

  • Target

    gwOALTMShW0g0JN.exe

  • Size

    713KB

  • MD5

    707621bacd32d4ab21b17157216d3032

  • SHA1

    2318a47d090ab212c924814da86488130f7d8b2c

  • SHA256

    29286d65248d0005ca9c13110d5563b892150291ff16086b29938050a746251f

  • SHA512

    5dabd58015ea9534e35a43114eb145c4b73e0c2f778ac8b5f0d150e2b58961b49f104b8cca4e07d1ad434ee7903fd987a9b80d72b6b738640629d11d19dcc5d6

  • SSDEEP

    12288:YFhvyUi0gu1EMwvhsyhpK8t4BU+fyuZuwkp8sL3cr13q:YLqUigEMEey604hzkp8UcrA

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.polastarline.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    donblack12345

Signatures

  • AgentTesla

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

  • AgentTesla payload 1 IoCs
  • Looks for VirtualBox Guest Additions in registry 2 TTPs 1 IoCs
  • Looks for VMWare Tools registry key 2 TTPs 1 IoCs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Reads WinSCP keys stored on the system 2 TTPs

    Tries to access WinSCP stored sessions.

  • 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
  • Maps connected drives based on registry 3 TTPs 2 IoCs

    Disk information is often read in order to detect sandboxing environments.

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\gwOALTMShW0g0JN.exe
    "C:\Users\Admin\AppData\Local\Temp\gwOALTMShW0g0JN.exe"
    1⤵
    • Looks for VirtualBox Guest Additions in registry
    • Looks for VMWare Tools registry key
    • Checks BIOS information in registry
    • Checks computer location settings
    • Maps connected drives based on registry
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:640
    • 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\gwOALTMShW0g0JN.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3300
    • C:\Users\Admin\AppData\Local\Temp\gwOALTMShW0g0JN.exe
      "C:\Users\Admin\AppData\Local\Temp\gwOALTMShW0g0JN.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:2392

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_1tyx4ls1.r3r.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • memory/640-23-0x0000000074530000-0x0000000074CE0000-memory.dmp

    Filesize

    7.7MB

  • memory/640-12-0x0000000006B00000-0x0000000006B66000-memory.dmp

    Filesize

    408KB

  • memory/640-3-0x0000000004BD0000-0x0000000004C62000-memory.dmp

    Filesize

    584KB

  • memory/640-4-0x0000000004D30000-0x0000000004D40000-memory.dmp

    Filesize

    64KB

  • memory/640-5-0x0000000004BC0000-0x0000000004BCA000-memory.dmp

    Filesize

    40KB

  • memory/640-6-0x00000000064A0000-0x00000000064B8000-memory.dmp

    Filesize

    96KB

  • memory/640-7-0x0000000074530000-0x0000000074CE0000-memory.dmp

    Filesize

    7.7MB

  • memory/640-8-0x0000000004D30000-0x0000000004D40000-memory.dmp

    Filesize

    64KB

  • memory/640-9-0x0000000006870000-0x000000000690C000-memory.dmp

    Filesize

    624KB

  • memory/640-10-0x0000000006A20000-0x0000000006A92000-memory.dmp

    Filesize

    456KB

  • memory/640-11-0x0000000004D30000-0x0000000004D40000-memory.dmp

    Filesize

    64KB

  • memory/640-1-0x0000000074530000-0x0000000074CE0000-memory.dmp

    Filesize

    7.7MB

  • memory/640-2-0x00000000050E0000-0x0000000005684000-memory.dmp

    Filesize

    5.6MB

  • memory/640-0-0x0000000000100000-0x00000000001B8000-memory.dmp

    Filesize

    736KB

  • memory/2392-24-0x00000000053F0000-0x0000000005400000-memory.dmp

    Filesize

    64KB

  • memory/2392-67-0x00000000053F0000-0x0000000005400000-memory.dmp

    Filesize

    64KB

  • memory/2392-66-0x0000000006970000-0x00000000069C0000-memory.dmp

    Filesize

    320KB

  • memory/2392-18-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/2392-65-0x00000000053F0000-0x0000000005400000-memory.dmp

    Filesize

    64KB

  • memory/2392-21-0x0000000074530000-0x0000000074CE0000-memory.dmp

    Filesize

    7.7MB

  • memory/2392-64-0x0000000074530000-0x0000000074CE0000-memory.dmp

    Filesize

    7.7MB

  • memory/2392-68-0x00000000053F0000-0x0000000005400000-memory.dmp

    Filesize

    64KB

  • memory/2392-63-0x0000000005720000-0x0000000005738000-memory.dmp

    Filesize

    96KB

  • memory/3300-13-0x00000000026F0000-0x0000000002726000-memory.dmp

    Filesize

    216KB

  • memory/3300-55-0x0000000007510000-0x0000000007521000-memory.dmp

    Filesize

    68KB

  • memory/3300-35-0x0000000005FE0000-0x0000000005FFE000-memory.dmp

    Filesize

    120KB

  • memory/3300-36-0x0000000006020000-0x000000000606C000-memory.dmp

    Filesize

    304KB

  • memory/3300-37-0x000000007FA60000-0x000000007FA70000-memory.dmp

    Filesize

    64KB

  • memory/3300-38-0x00000000065C0000-0x00000000065F2000-memory.dmp

    Filesize

    200KB

  • memory/3300-39-0x00000000709D0000-0x0000000070A1C000-memory.dmp

    Filesize

    304KB

  • memory/3300-49-0x00000000065A0000-0x00000000065BE000-memory.dmp

    Filesize

    120KB

  • memory/3300-50-0x00000000071C0000-0x0000000007263000-memory.dmp

    Filesize

    652KB

  • memory/3300-16-0x0000000002A60000-0x0000000002A70000-memory.dmp

    Filesize

    64KB

  • memory/3300-52-0x0000000007310000-0x000000000732A000-memory.dmp

    Filesize

    104KB

  • memory/3300-53-0x0000000007380000-0x000000000738A000-memory.dmp

    Filesize

    40KB

  • memory/3300-54-0x0000000007590000-0x0000000007626000-memory.dmp

    Filesize

    600KB

  • memory/3300-51-0x0000000007960000-0x0000000007FDA000-memory.dmp

    Filesize

    6.5MB

  • memory/3300-56-0x0000000007540000-0x000000000754E000-memory.dmp

    Filesize

    56KB

  • memory/3300-57-0x0000000007550000-0x0000000007564000-memory.dmp

    Filesize

    80KB

  • memory/3300-58-0x0000000007650000-0x000000000766A000-memory.dmp

    Filesize

    104KB

  • memory/3300-59-0x0000000007630000-0x0000000007638000-memory.dmp

    Filesize

    32KB

  • memory/3300-62-0x0000000074530000-0x0000000074CE0000-memory.dmp

    Filesize

    7.7MB

  • memory/3300-25-0x0000000005AA0000-0x0000000005DF4000-memory.dmp

    Filesize

    3.3MB

  • memory/3300-22-0x00000000052F0000-0x0000000005356000-memory.dmp

    Filesize

    408KB

  • memory/3300-19-0x0000000004F50000-0x0000000004F72000-memory.dmp

    Filesize

    136KB

  • memory/3300-17-0x0000000005400000-0x0000000005A28000-memory.dmp

    Filesize

    6.2MB

  • memory/3300-15-0x0000000002A60000-0x0000000002A70000-memory.dmp

    Filesize

    64KB

  • memory/3300-14-0x0000000074530000-0x0000000074CE0000-memory.dmp

    Filesize

    7.7MB