Analysis

  • max time kernel
    141s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-12-2024 12:40

General

  • Target

    87597.exe

  • Size

    704KB

  • MD5

    7e19235ca4a6192bdace52baa0a40d26

  • SHA1

    1ac8aa96052b0da4f7d1072ca8fee01ade2e9f71

  • SHA256

    ed762437d06ffae4d27baec39379997d8acf7ae6e6e758611793f3fb2fafcee1

  • SHA512

    a67be81bf2487babe021184427d47004791fca072b93ea61efa40d81680132ffcbd96cd78a00a8f316be50d5308ce1d5f2b29dc19be32e91a74a65a63c7705a0

  • SSDEEP

    12288:l3MyvUIZbVWX7Q6cgNMuAx206pm2MGydGcHazvuHw3ItoaI43JYLh2ADli:5TvDBW3cEaeMGpcHazv0tV/OLh2ADl

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    ftp
  • Host:
    ftp://ftp.badonfashoin.com/
  • Port:
    21
  • Username:
    [email protected]
  • Password:
    kKsIA9XNV2zG

Signatures

  • AgentTesla

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

  • Agenttesla family
  • AgentTesla payload 1 IoCs
  • 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 3 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
  • Adds Run key to start application 2 TTPs 1 IoCs
  • 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 3 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 2 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\87597.exe
    "C:\Users\Admin\AppData\Local\Temp\87597.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:816
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\emoGDf" /XML "C:\Users\Admin\AppData\Local\Temp\tmp6491.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2552
    • C:\Users\Admin\AppData\Local\Temp\87597.exe
      "C:\Users\Admin\AppData\Local\Temp\87597.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: RenamesItself
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:2632

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\87597.exe.log

    Filesize

    1KB

    MD5

    17573558c4e714f606f997e5157afaac

    SHA1

    13e16e9415ceef429aaf124139671ebeca09ed23

    SHA256

    c18db6aecad2436da4a63ff26af4e3a337cca48f01c21b8db494fe5ccc60e553

    SHA512

    f4edf13f05a0d142e4dd42802098c8c44988ee8869621a62c2b565a77c9a95857f636583ff8d6d9baa366603d98b9bfbf1fc75bc6f9f8f83c80cb1215b2941cc

  • C:\Users\Admin\AppData\Local\Temp\tmp6491.tmp

    Filesize

    1KB

    MD5

    db885920820fae8187035c824062a05c

    SHA1

    a27e9bfdf09e3a0107480495a2d76a5a7bfdf398

    SHA256

    550bd721e69a23f39f6746a7c3586dc4df9b2480d5164851f640e29d74399d33

    SHA512

    ced66f9fd1c40d55222930ea62a46afb00816cecea278b0093c821a3de3c9f1c7c7fcbd13181bb7dc940bcb3ef1d390a09cb18e026755252a3e368000805486f

  • memory/816-12-0x0000000006790000-0x00000000067D0000-memory.dmp

    Filesize

    256KB

  • memory/816-9-0x000000007533E000-0x000000007533F000-memory.dmp

    Filesize

    4KB

  • memory/816-4-0x0000000004C30000-0x0000000004CC2000-memory.dmp

    Filesize

    584KB

  • memory/816-5-0x0000000004BB0000-0x0000000004BBA000-memory.dmp

    Filesize

    40KB

  • memory/816-6-0x0000000004E40000-0x0000000004E96000-memory.dmp

    Filesize

    344KB

  • memory/816-7-0x0000000075330000-0x0000000075AE0000-memory.dmp

    Filesize

    7.7MB

  • memory/816-8-0x0000000004E00000-0x0000000004E22000-memory.dmp

    Filesize

    136KB

  • memory/816-2-0x0000000004AE0000-0x0000000004B7C000-memory.dmp

    Filesize

    624KB

  • memory/816-10-0x0000000075330000-0x0000000075AE0000-memory.dmp

    Filesize

    7.7MB

  • memory/816-11-0x0000000006710000-0x0000000006798000-memory.dmp

    Filesize

    544KB

  • memory/816-0-0x000000007533E000-0x000000007533F000-memory.dmp

    Filesize

    4KB

  • memory/816-3-0x00000000051E0000-0x0000000005784000-memory.dmp

    Filesize

    5.6MB

  • memory/816-22-0x0000000075330000-0x0000000075AE0000-memory.dmp

    Filesize

    7.7MB

  • memory/816-1-0x0000000000070000-0x0000000000126000-memory.dmp

    Filesize

    728KB

  • memory/2632-29-0x0000000006800000-0x0000000006850000-memory.dmp

    Filesize

    320KB

  • memory/2632-21-0x0000000075330000-0x0000000075AE0000-memory.dmp

    Filesize

    7.7MB

  • memory/2632-23-0x0000000075330000-0x0000000075AE0000-memory.dmp

    Filesize

    7.7MB

  • memory/2632-24-0x0000000005310000-0x0000000005328000-memory.dmp

    Filesize

    96KB

  • memory/2632-25-0x0000000006130000-0x0000000006196000-memory.dmp

    Filesize

    408KB

  • memory/2632-26-0x0000000075330000-0x0000000075AE0000-memory.dmp

    Filesize

    7.7MB

  • memory/2632-27-0x0000000075330000-0x0000000075AE0000-memory.dmp

    Filesize

    7.7MB

  • memory/2632-18-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/2632-30-0x0000000075330000-0x0000000075AE0000-memory.dmp

    Filesize

    7.7MB

  • memory/2632-31-0x0000000075330000-0x0000000075AE0000-memory.dmp

    Filesize

    7.7MB