Analysis

  • max time kernel
    137s
  • max time network
    116s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07-09-2024 21:50

General

  • Target

    Openstaande factuur.exe

  • Size

    536KB

  • MD5

    1de145a52d4d62164c4ff3dd5a9705ad

  • SHA1

    1facc670ae58832181eae43331253d30f36122ae

  • SHA256

    93d22d39577ab983c75badd9019b57420a4e2bfc300d6a37d90885d823396058

  • SHA512

    8f3930501aa2a7c147830a77f3683c7e348a3ec5f0d925b9ab4c15df0988cbc0e6b1f22920fd0f8188d1bda992fe0cfcb9fc4260ab8222b8b8dd425e7c488b94

  • SSDEEP

    12288:8Eav2zv1gaG1SDq7+NUwUeMB2y4nyGlNrzVWfZb:R92aGqScqsZHr5Wx

Malware Config

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • AgentTesla payload 1 IoCs
  • Credentials from Password Stores: Credentials from Web Browsers 1 TTPs

    Malicious Access or copy of Web Browser Credential store.

  • 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.

  • Unsecured Credentials: Credentials In Files 1 TTPs

    Steal credentials from unsecured files.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Openstaande factuur.exe
    "C:\Users\Admin\AppData\Local\Temp\Openstaande factuur.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1164
    • C:\Users\Admin\AppData\Local\Temp\Openstaande factuur.exe
      "C:\Users\Admin\AppData\Local\Temp\Openstaande factuur.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:972

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\Openstaande factuur.exe.log

    Filesize

    1KB

    MD5

    84e77a587d94307c0ac1357eb4d3d46f

    SHA1

    83cc900f9401f43d181207d64c5adba7a85edc1e

    SHA256

    e16024b092a026a9dc00df69d4b9bbcab7b2dc178dc5291fc308a1abc9304a99

    SHA512

    aefb5c62200b3ed97718d20a89990954d4d8acdc0a6a73c5a420f1bba619cb79e70c2cd0a579b9f52dc6b09e1de2cea6cd6cac4376cfee92d94e2c01d310f691

  • memory/972-25-0x0000000074D30000-0x00000000754E0000-memory.dmp

    Filesize

    7.7MB

  • memory/972-24-0x0000000074D30000-0x00000000754E0000-memory.dmp

    Filesize

    7.7MB

  • memory/972-23-0x0000000006750000-0x00000000067A0000-memory.dmp

    Filesize

    320KB

  • memory/972-22-0x0000000074D30000-0x00000000754E0000-memory.dmp

    Filesize

    7.7MB

  • memory/972-21-0x0000000074D30000-0x00000000754E0000-memory.dmp

    Filesize

    7.7MB

  • memory/972-20-0x0000000006320000-0x0000000006386000-memory.dmp

    Filesize

    408KB

  • memory/972-19-0x0000000005690000-0x00000000056A8000-memory.dmp

    Filesize

    96KB

  • memory/972-18-0x0000000074D30000-0x00000000754E0000-memory.dmp

    Filesize

    7.7MB

  • memory/972-16-0x0000000074D30000-0x00000000754E0000-memory.dmp

    Filesize

    7.7MB

  • memory/972-13-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/1164-6-0x0000000074D30000-0x00000000754E0000-memory.dmp

    Filesize

    7.7MB

  • memory/1164-7-0x0000000004D00000-0x0000000004D18000-memory.dmp

    Filesize

    96KB

  • memory/1164-12-0x00000000059F0000-0x0000000005A30000-memory.dmp

    Filesize

    256KB

  • memory/1164-10-0x00000000059A0000-0x00000000059F8000-memory.dmp

    Filesize

    352KB

  • memory/1164-9-0x0000000074D30000-0x00000000754E0000-memory.dmp

    Filesize

    7.7MB

  • memory/1164-17-0x0000000074D30000-0x00000000754E0000-memory.dmp

    Filesize

    7.7MB

  • memory/1164-8-0x0000000074D3E000-0x0000000074D3F000-memory.dmp

    Filesize

    4KB

  • memory/1164-11-0x0000000005880000-0x0000000005886000-memory.dmp

    Filesize

    24KB

  • memory/1164-0-0x0000000074D3E000-0x0000000074D3F000-memory.dmp

    Filesize

    4KB

  • memory/1164-5-0x0000000004AB0000-0x0000000004ABA000-memory.dmp

    Filesize

    40KB

  • memory/1164-4-0x0000000004B70000-0x0000000004C0C000-memory.dmp

    Filesize

    624KB

  • memory/1164-3-0x0000000004AD0000-0x0000000004B62000-memory.dmp

    Filesize

    584KB

  • memory/1164-2-0x0000000004FA0000-0x0000000005544000-memory.dmp

    Filesize

    5.6MB

  • memory/1164-1-0x00000000001C0000-0x000000000024C000-memory.dmp

    Filesize

    560KB