Analysis

  • max time kernel
    117s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    12-09-2024 15:30

General

  • Target

    tmplxthw7q1.exe

  • Size

    806KB

  • MD5

    9a32e03e7274d1b2eaf10e14daaafb91

  • SHA1

    159074cadc6851dfc72ad44bbd0a187198b38896

  • SHA256

    8ef13cc6f1b7142f119d90c5bf9a8e8a4ef30e0151191a9f0e0b96610d8fe183

  • SHA512

    9bd7319500eed20b6d9736ac9f982ed88d0ce1b0d48f936f9d95e69abe1c9e11e86ad2a495c2b645e65a2d5abc6589116543d8210511698248e53332c9a4f11d

  • SSDEEP

    12288:1tWvtO3X2CZ8dDN5H8emRLS9VkKjEbSkNzFduuZEkgArJjtXHX:wO3GCG5N5HSuke4zF9EkzrL

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\tmplxthw7q1.exe
    "C:\Users\Admin\AppData\Local\Temp\tmplxthw7q1.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1984
    • 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\tmplxthw7q1.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2928
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\OmiCXfeyquVh.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2724
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\OmiCXfeyquVh" /XML "C:\Users\Admin\AppData\Local\Temp\tmpB838.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2804
    • C:\Users\Admin\AppData\Local\Temp\tmplxthw7q1.exe
      "C:\Users\Admin\AppData\Local\Temp\tmplxthw7q1.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2624

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpB838.tmp

    Filesize

    1KB

    MD5

    39f88ee85534ee21788f7de4fb6abf52

    SHA1

    f15c0576247ffbd2fcaa9fc1b5020f496ecc0285

    SHA256

    3f64ad2480cd35da3324e6267f1f48c355534cd05a7a5f72e02c59b30a8bca03

    SHA512

    1fe88fc1fdfa14db4f60d8c806bb1a6599ca471dfced8233c2df35f216910d261438285b8205053ca7b388bdaaec2a37dea48511b4c22956c793888eee1937f0

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

    Filesize

    7KB

    MD5

    70da99b15373f693767b0be1816b3c6e

    SHA1

    a128bc72741c73a318be982ca1a432c4c73435be

    SHA256

    24c6be817495c79b1a3cd61494a1afb237582b959befc62b7b3db43c5d8f610f

    SHA512

    d1e7f647f0441066e604fd3aba155be752b122f6a2ca04c7e18f4e054bd05dd8ef0c19b95ac2fb08847a54afd406a642735e3f84edbe84e68644a127a6fb0a97

  • memory/1984-4-0x0000000074DDE000-0x0000000074DDF000-memory.dmp

    Filesize

    4KB

  • memory/1984-31-0x0000000074DD0000-0x00000000754BE000-memory.dmp

    Filesize

    6.9MB

  • memory/1984-0-0x0000000074DDE000-0x0000000074DDF000-memory.dmp

    Filesize

    4KB

  • memory/1984-5-0x0000000074DD0000-0x00000000754BE000-memory.dmp

    Filesize

    6.9MB

  • memory/1984-6-0x0000000005330000-0x00000000053B2000-memory.dmp

    Filesize

    520KB

  • memory/1984-2-0x0000000074DD0000-0x00000000754BE000-memory.dmp

    Filesize

    6.9MB

  • memory/1984-1-0x0000000000050000-0x0000000000120000-memory.dmp

    Filesize

    832KB

  • memory/1984-3-0x00000000007E0000-0x00000000007F0000-memory.dmp

    Filesize

    64KB

  • memory/2624-30-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/2624-28-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/2624-27-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2624-25-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/2624-23-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/2624-21-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/2624-19-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/2624-29-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB