Analysis

  • max time kernel
    120s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    26-09-2024 10:52

General

  • Target

    BOSSARD_ORDER_4923521.exe

  • Size

    853KB

  • MD5

    a9ea323ea2de4868acfb99b7959b54b6

  • SHA1

    b66217db6ffda157a9252611f6b1d528f76f0420

  • SHA256

    e17765cd72f6b95c8167f428ed734688d3b545c45c23e07407361e8979b49167

  • SHA512

    eff66d932ba7d246b20fe71da264ecbabb430d27bec97bbe258f0b4ca6a43843426f5251579b444ae5fd02fbcf8d9ee8cb9030c7e7c20727bb36e813e1b3117f

  • SSDEEP

    12288:27auaN1gTyQcG+yDXEdKemm6EIJtZcIuE4VGnYZzHmPKuDVFSrdtTJHlgrdm4Vzu:27sQclMXk6OVGn2zGS6VAd

Malware Config

Extracted

Family

agenttesla

Credentials

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.

  • 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 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • 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 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\BOSSARD_ORDER_4923521.exe
    "C:\Users\Admin\AppData\Local\Temp\BOSSARD_ORDER_4923521.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2380
    • 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\BOSSARD_ORDER_4923521.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2964
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\CkVzvA.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2756
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\CkVzvA" /XML "C:\Users\Admin\AppData\Local\Temp\tmpF70C.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2624
    • C:\Users\Admin\AppData\Local\Temp\BOSSARD_ORDER_4923521.exe
      "C:\Users\Admin\AppData\Local\Temp\BOSSARD_ORDER_4923521.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2640

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpF70C.tmp

    Filesize

    1KB

    MD5

    aa706c4a4da1befc9685c175597c4cc9

    SHA1

    7373f8eb9729eddb88215ce55ace4b8cfce47b0e

    SHA256

    f1827a7d399d28638c6a3524faa7ec16cbd067fd21391e8863b7f18548717fbd

    SHA512

    ef34cacf20ded56779da2b11acaa3cdca67f8489e1965e212f1404d2212dc5eb63d70ad5d61677793407b13254ffbc29a209e21906739f456391ecee80f9d01c

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms

    Filesize

    7KB

    MD5

    7e60cbe7dee806e5853ce059b0c55f2a

    SHA1

    df796bb46541e1a96b87bf6589e8a752154f72cc

    SHA256

    f28bf824a146dbba8d8b7ef5dd222cc980c7f9910ca8a193ad2d03e9f46fb39e

    SHA512

    22209cc55b4f8825015de150c0b0d6b8f18ae470df59bfbc09af7cd68a4b6fc701fedb3664cc6687da0d18d9f4d443799e54c18a4044fae423247fffee348d26

  • memory/2380-4-0x00000000749DE000-0x00000000749DF000-memory.dmp

    Filesize

    4KB

  • memory/2380-31-0x00000000749D0000-0x00000000750BE000-memory.dmp

    Filesize

    6.9MB

  • memory/2380-0-0x00000000749DE000-0x00000000749DF000-memory.dmp

    Filesize

    4KB

  • memory/2380-5-0x00000000749D0000-0x00000000750BE000-memory.dmp

    Filesize

    6.9MB

  • memory/2380-6-0x00000000056E0000-0x0000000005762000-memory.dmp

    Filesize

    520KB

  • memory/2380-2-0x00000000749D0000-0x00000000750BE000-memory.dmp

    Filesize

    6.9MB

  • memory/2380-1-0x0000000000DE0000-0x0000000000EBC000-memory.dmp

    Filesize

    880KB

  • memory/2380-3-0x0000000000470000-0x0000000000480000-memory.dmp

    Filesize

    64KB

  • memory/2640-19-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/2640-27-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2640-30-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/2640-29-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/2640-28-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/2640-25-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/2640-23-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/2640-21-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB