Analysis

  • max time kernel
    126s
  • max time network
    18s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    28-09-2024 21:52

General

  • Target

    Outstanding Invoices.exe

  • Size

    755KB

  • MD5

    8535be06fe3da04495faaffaf0212462

  • SHA1

    b7df2c69caaffc15c9750c37dd81b7d4912684ab

  • SHA256

    defbf133c9e7d72102fde035e692158815cf0312c4f96535777e7bbeecd3a796

  • SHA512

    9fcaf27b08e89f90a21f3d38bf96f570c11892c23c68fc6a2cfce68f92216f1b024b70d5cd3333d789fcc32583f21e21ca301e389c97ffaae4aa5728829d92b4

  • SSDEEP

    12288:tmgb/7vGkeafY+56Yot8zpoEHQmNqzXJZNhjN16U22d97rHcRiK1CDN3/YMYo9WO:tlvQafY+MdAppHQ1jjN1TS0

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.shirdilog.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    SL094521

Signatures

  • AgentTesla

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

  • Modifies Windows Defender Real-time Protection settings 3 TTPs 4 IoCs
  • AgentTesla payload 5 IoCs
  • Looks for VirtualBox Guest Additions in registry 2 TTPs 1 IoCs
  • Looks for VMWare Tools registry key 2 TTPs 1 IoCs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • 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.

  • Windows security modification 2 TTPs 2 IoCs
  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Maps connected drives based on registry 3 TTPs 2 IoCs

    Disk information is often read in order to detect sandboxing environments.

  • 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.

  • Modifies registry key 1 TTPs 1 IoCs
  • 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 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Outstanding Invoices.exe
    "C:\Users\Admin\AppData\Local\Temp\Outstanding Invoices.exe"
    1⤵
    • Modifies Windows Defender Real-time Protection settings
    • Looks for VirtualBox Guest Additions in registry
    • Looks for VMWare Tools registry key
    • Checks BIOS information in registry
    • Windows security modification
    • Maps connected drives based on registry
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2532
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "powershell" Get-MpPreference -verbose
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2688
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\vhSYPjucLyLrlP" /XML "C:\Users\Admin\AppData\Local\Temp\tmpD6EE.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:548
    • C:\Users\Admin\AppData\Local\Temp\Outstanding Invoices.exe
      "C:\Users\Admin\AppData\Local\Temp\Outstanding Invoices.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      • outlook_office_path
      • outlook_win_path
      PID:2676
      • C:\Windows\SysWOW64\REG.exe
        REG add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer / v NoRun / t REG_DWORD / d 1 / f
        3⤵
        • System Location Discovery: System Language Discovery
        • Modifies registry key
        PID:2172

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpD6EE.tmp

    Filesize

    1KB

    MD5

    9e633df5f1d4b41413f7f74993afab3d

    SHA1

    759ef8d424efa1f838a0cfb4e4fec54ca0820782

    SHA256

    748eb1ee2b3f037e2f2bbe76d4e343546d4c30316310877fbd198379b7e6f9ff

    SHA512

    45fbb20041eb065ae72676568dbecaefd7c9e48f73bc212733bdedc591f3b05cb716433316a28700bd9f9be241f4bb00d1e305ac0221562937a32a60477b5d3f

  • memory/2532-1-0x00000000009A0000-0x0000000000A64000-memory.dmp

    Filesize

    784KB

  • memory/2532-2-0x0000000004200000-0x000000000429E000-memory.dmp

    Filesize

    632KB

  • memory/2532-3-0x0000000074300000-0x00000000749EE000-memory.dmp

    Filesize

    6.9MB

  • memory/2532-4-0x0000000000550000-0x0000000000568000-memory.dmp

    Filesize

    96KB

  • memory/2532-5-0x000000007430E000-0x000000007430F000-memory.dmp

    Filesize

    4KB

  • memory/2532-6-0x0000000074300000-0x00000000749EE000-memory.dmp

    Filesize

    6.9MB

  • memory/2532-7-0x000000000A790000-0x000000000A818000-memory.dmp

    Filesize

    544KB

  • memory/2532-8-0x0000000000680000-0x0000000000686000-memory.dmp

    Filesize

    24KB

  • memory/2532-9-0x0000000004C20000-0x0000000004C8A000-memory.dmp

    Filesize

    424KB

  • memory/2532-35-0x0000000074300000-0x00000000749EE000-memory.dmp

    Filesize

    6.9MB

  • memory/2532-0-0x000000007430E000-0x000000007430F000-memory.dmp

    Filesize

    4KB

  • memory/2676-34-0x0000000000400000-0x0000000000466000-memory.dmp

    Filesize

    408KB

  • memory/2676-29-0x0000000000400000-0x0000000000466000-memory.dmp

    Filesize

    408KB

  • memory/2676-25-0x0000000000400000-0x0000000000466000-memory.dmp

    Filesize

    408KB

  • memory/2676-27-0x0000000000400000-0x0000000000466000-memory.dmp

    Filesize

    408KB

  • memory/2676-31-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2676-23-0x0000000000400000-0x0000000000466000-memory.dmp

    Filesize

    408KB

  • memory/2676-32-0x0000000000400000-0x0000000000466000-memory.dmp

    Filesize

    408KB

  • memory/2676-33-0x0000000000400000-0x0000000000466000-memory.dmp

    Filesize

    408KB

  • memory/2688-13-0x000000006F1B0000-0x000000006F75B000-memory.dmp

    Filesize

    5.7MB

  • memory/2688-14-0x000000006F1B0000-0x000000006F75B000-memory.dmp

    Filesize

    5.7MB

  • memory/2688-15-0x000000006F1B0000-0x000000006F75B000-memory.dmp

    Filesize

    5.7MB

  • memory/2688-17-0x000000006F1B0000-0x000000006F75B000-memory.dmp

    Filesize

    5.7MB

  • memory/2688-16-0x000000006F1B0000-0x000000006F75B000-memory.dmp

    Filesize

    5.7MB

  • memory/2688-12-0x000000006F1B1000-0x000000006F1B2000-memory.dmp

    Filesize

    4KB