Analysis

  • max time kernel
    120s
  • max time network
    124s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    05-09-2024 13:21

General

  • Target

    Payment Slip -21501120100258.bat.exe

  • Size

    689KB

  • MD5

    4204cc89996eedd07e48b855fdfdc773

  • SHA1

    30780fa47a2f022102755d4b33cf429d25a893bb

  • SHA256

    4c06d00bd2ccb64a93bb8019bbea91c83e4f6931d7c7fdc2469545a0a93a9c86

  • SHA512

    74eb0c8298d4c03a7958b00335ea9ec597499fa7682f61f659f0c5a0f68f1eb0270a4aa2133ecdcf431be28e42a02e6660053153141c798c942b1751209b9be3

  • SSDEEP

    12288:tRo1nSVygJA6psrecYWyiKRPTCHDP/8dlgTsL0czZgFwQLr0hKH:tRo1SVVAWs4riAPTCHTYggZgCq+K

Malware Config

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • Credentials from Password Stores: Credentials from Web Browsers 1 TTPs

    Malicious Access or copy of Web Browser Credential store.

  • 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 2 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 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Payment Slip -21501120100258.bat.exe
    "C:\Users\Admin\AppData\Local\Temp\Payment Slip -21501120100258.bat.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2684
    • 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\Payment Slip -21501120100258.bat.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:988
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\VzxWktexVIFRzv.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2704
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\VzxWktexVIFRzv" /XML "C:\Users\Admin\AppData\Local\Temp\tmpEE74.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2828
    • C:\Users\Admin\AppData\Local\Temp\Payment Slip -21501120100258.bat.exe
      "C:\Users\Admin\AppData\Local\Temp\Payment Slip -21501120100258.bat.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3068

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpEE74.tmp

    Filesize

    1KB

    MD5

    a8c0025284be4f2d0ab7c7c1460726ad

    SHA1

    ac6d815c8e6811675b227b539441c0bda803f6a6

    SHA256

    b3a437308564cd50451fd075e5796ce9077dab686d7695af6e04acf7b117ccc7

    SHA512

    4ac01c2294a99690f698f495d9680cde9a65a97396d637856f57a69ee39beebe6ba0cac37050b8bbe8e080778d16c3571016dbd4424494b996bfbcafbb1f9816

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\RBNNUT2CUEBJT7I6JWHM.temp

    Filesize

    7KB

    MD5

    c9f22b29f822a2f789f7db26ba56daf1

    SHA1

    64b5bd18eea4ac83d4970b47947842af5b28e01e

    SHA256

    f0724501345f54574339fafcb984cbb0c7e50aed36ca50dc48ebbf520679202d

    SHA512

    249e5a008fef1c3fda07cf40d6b1a65ef7d706f0b412c8445d354adfbe31f31e32beed5ad20a351274d74decae78601657ad8ca098eca452b77d0a4d8bb8bbcc

  • memory/2684-4-0x000000007466E000-0x000000007466F000-memory.dmp

    Filesize

    4KB

  • memory/2684-32-0x0000000074660000-0x0000000074D4E000-memory.dmp

    Filesize

    6.9MB

  • memory/2684-0-0x000000007466E000-0x000000007466F000-memory.dmp

    Filesize

    4KB

  • memory/2684-5-0x0000000074660000-0x0000000074D4E000-memory.dmp

    Filesize

    6.9MB

  • memory/2684-6-0x0000000000CE0000-0x0000000000D62000-memory.dmp

    Filesize

    520KB

  • memory/2684-2-0x0000000074660000-0x0000000074D4E000-memory.dmp

    Filesize

    6.9MB

  • memory/2684-1-0x0000000001240000-0x00000000012F2000-memory.dmp

    Filesize

    712KB

  • memory/2684-3-0x0000000000990000-0x00000000009A8000-memory.dmp

    Filesize

    96KB

  • memory/3068-20-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/3068-31-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/3068-29-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/3068-28-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/3068-27-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/3068-21-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/3068-26-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/3068-23-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB