Analysis

  • max time kernel
    18s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20240729-en
  • resource tags

    arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
  • submitted
    01-08-2024 21:25

General

  • Target

    04673533c7fbdda693710153531ffc40N.exe

  • Size

    881KB

  • MD5

    04673533c7fbdda693710153531ffc40

  • SHA1

    88a460822400b0ae932ec99c7c334f83b6f391d9

  • SHA256

    9c88bb71aa34b21af48ac9cba57f99476b2c31032b09c90b868e357dcdb471fd

  • SHA512

    924bdc15281808abe3697205193c719d306541acc085705c20dd28b6168d97087a946b4ecaea258385bdebba43971edb01182a91c197c3b6fc13d128e1f27825

  • SSDEEP

    24576:ryLOsEpHaAiLjPxj4um3Gkr4WvHYuX0J:ryLOsEp6AMJnsXv4dJ

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.

  • Looks up external IP address via web service 2 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\04673533c7fbdda693710153531ffc40N.exe
    "C:\Users\Admin\AppData\Local\Temp\04673533c7fbdda693710153531ffc40N.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2088
    • 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\04673533c7fbdda693710153531ffc40N.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3060
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\jLaJdSNYRXiLXi.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2316
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\jLaJdSNYRXiLXi" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC0B0.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:1652
    • C:\Users\Admin\AppData\Local\Temp\04673533c7fbdda693710153531ffc40N.exe
      "C:\Users\Admin\AppData\Local\Temp\04673533c7fbdda693710153531ffc40N.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\tmpC0B0.tmp

    Filesize

    1KB

    MD5

    28879910f1523e7dd38cbd6498bc762e

    SHA1

    e922398bbc98f985b226c5bf3501f252208e75cb

    SHA256

    088eeb27955dba2e3af56d564d4ab6dcefa85e09d93a47258edd8f84b72d0406

    SHA512

    e2649bbd4b5fc5b4e858540bb6fed0d0c28216cfae3ad30f00baa49b7157140b3ecfa63d0b3f50ba765a3e96565fe1171628018f89a735093208979cc665524a

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\J2QIGKM5GECCLFWGNQF3.temp

    Filesize

    7KB

    MD5

    8b4bf8822c1ad0bc8cf51038c7a77116

    SHA1

    aeafe223f1d405bd1066ce7e79e961b716f2e3f4

    SHA256

    6cd6375db65a9614f52e792395c6ea3932a6c85cd52d4a137aba9c215b6f16b3

    SHA512

    6544f46f51647e99c25f70c887d9b3911b0bec7cd3a06a80475018c474748dc73e966a1e3dd94e7a45b867255cad06b699241acde65449c887109d6c04dbc5bc

  • memory/2088-4-0x0000000000200000-0x0000000000212000-memory.dmp

    Filesize

    72KB

  • memory/2088-31-0x0000000074C20000-0x000000007530E000-memory.dmp

    Filesize

    6.9MB

  • memory/2088-0-0x0000000074C2E000-0x0000000074C2F000-memory.dmp

    Filesize

    4KB

  • memory/2088-5-0x0000000000430000-0x000000000043E000-memory.dmp

    Filesize

    56KB

  • memory/2088-6-0x0000000004FC0000-0x0000000005042000-memory.dmp

    Filesize

    520KB

  • memory/2088-2-0x0000000074C20000-0x000000007530E000-memory.dmp

    Filesize

    6.9MB

  • memory/2088-1-0x0000000000A10000-0x0000000000AF2000-memory.dmp

    Filesize

    904KB

  • memory/2088-3-0x0000000004B00000-0x0000000004BA0000-memory.dmp

    Filesize

    640KB

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

    Filesize

    256KB

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

    Filesize

    256KB

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

    Filesize

    256KB

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

    Filesize

    4KB

  • 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

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

    Filesize

    256KB