Analysis

  • max time kernel
    122s
  • max time network
    133s
  • platform
    windows7_x64
  • resource
    win7-20240729-en
  • resource tags

    arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
  • submitted
    25-01-2025 02:52

General

  • Target

    89260b07ae5d0858db8a14a8b7cd9e2c1bcd064f5596e7e0cea1665c7f0c496b.exe

  • Size

    745KB

  • MD5

    d744962b80b75ddd26a4f39a8e8d4356

  • SHA1

    185520ceb31c021b5d48440b31b09e7dfe6dac22

  • SHA256

    89260b07ae5d0858db8a14a8b7cd9e2c1bcd064f5596e7e0cea1665c7f0c496b

  • SHA512

    1ffe6dbf3837d847a976d509d119f6bda0b648e8bb1433c2b91efd19fa56ceb8dc33fdf7e0decf9146311ca6d4cb77d0cfa792e77d7820672c8d2f07646d47bb

  • SSDEEP

    12288:4hQu7+JZLQ81xkRbunBjtRbnRIA0FL99PvOPivjJj4OD218zVTAzwndztS:d/JZ37yyBpRbn7i9P2Pivjt4KU8VCq5

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    ftp
  • Host:
    ftp://ftp.antoniomayol.com:21
  • Port:
    21
  • Username:
    [email protected]
  • Password:
    cMhKDQUk1{;%

Signatures

  • AgentTesla

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

  • Agenttesla family
  • 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.

  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • 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\89260b07ae5d0858db8a14a8b7cd9e2c1bcd064f5596e7e0cea1665c7f0c496b.exe
    "C:\Users\Admin\AppData\Local\Temp\89260b07ae5d0858db8a14a8b7cd9e2c1bcd064f5596e7e0cea1665c7f0c496b.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2916
    • 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\89260b07ae5d0858db8a14a8b7cd9e2c1bcd064f5596e7e0cea1665c7f0c496b.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2772
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\YUNDEs.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2148
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\YUNDEs" /XML "C:\Users\Admin\AppData\Local\Temp\tmp1017.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2796
    • C:\Users\Admin\AppData\Local\Temp\89260b07ae5d0858db8a14a8b7cd9e2c1bcd064f5596e7e0cea1665c7f0c496b.exe
      "C:\Users\Admin\AppData\Local\Temp\89260b07ae5d0858db8a14a8b7cd9e2c1bcd064f5596e7e0cea1665c7f0c496b.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2672

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp1017.tmp

    Filesize

    1KB

    MD5

    55b19c927f9e73f700e16aa91547de80

    SHA1

    d11e7dcf156ffef8b7fd01f5c491c1200eb683a9

    SHA256

    ba35467b2fc9c3ea151865127b24d7fb7c4dd7c364dd3e1040d752b2b7c29a49

    SHA512

    2b90631fbcb1a1484bb6caf0e1649632406482b0017d1e95075b251d809fd118815213048d3c7152b6cff2b7a02b0156faf642d803a727c43bf73009edfa714a

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\O0QC96VV0M5E2FMA8ES9.temp

    Filesize

    7KB

    MD5

    4d58a4f8361a6e7a5509dc9ff0a39739

    SHA1

    b81cec7be4d2ef5f751e022d57712fe996656e54

    SHA256

    8d317893d0e1c3a1711578ab78b8ad5a6404f61b0305c6754b751783a32132f0

    SHA512

    66ff121ebc9eff6ecb5d5a26d0fb28497c2354c87cb1483ae14b3ebb56cdb4a022e3c886eb5508047da2af1e957394cf051edc0140b6af5051a4dbc569f7d160

  • memory/2672-30-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2672-19-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2672-23-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2672-25-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2672-27-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2672-28-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2672-29-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2672-21-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2916-6-0x00000000002A0000-0x0000000000326000-memory.dmp

    Filesize

    536KB

  • memory/2916-1-0x0000000000090000-0x0000000000150000-memory.dmp

    Filesize

    768KB

  • memory/2916-0-0x0000000074E8E000-0x0000000074E8F000-memory.dmp

    Filesize

    4KB

  • memory/2916-2-0x0000000074E80000-0x000000007556E000-memory.dmp

    Filesize

    6.9MB

  • memory/2916-3-0x0000000000540000-0x000000000055E000-memory.dmp

    Filesize

    120KB

  • memory/2916-5-0x0000000074E80000-0x000000007556E000-memory.dmp

    Filesize

    6.9MB

  • memory/2916-4-0x0000000074E8E000-0x0000000074E8F000-memory.dmp

    Filesize

    4KB

  • memory/2916-31-0x0000000074E80000-0x000000007556E000-memory.dmp

    Filesize

    6.9MB