Analysis

  • max time kernel
    117s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20240419-en
  • resource tags

    arch:x64arch:x86image:win7-20240419-enlocale:en-usos:windows7-x64system
  • submitted
    28-04-2024 01:40

General

  • Target

    Invoice.exe

  • Size

    822KB

  • MD5

    df0a67f2a0c162c5a5dee0a8fcd8ab22

  • SHA1

    07981693f5b38fa99a88aca0e13ba5b6022b1465

  • SHA256

    e62255f98543e0bb1abf017af13fd483e1382158021b7edde65fa55c1ad290cf

  • SHA512

    b62ea9a4710dfc855cfd47f2c0cb8787c9ea6b1159387431d1cc70b5989dd59086aaadd62e42fea9b21d28834b6ece20dc1715245762d026e48e315544529f75

  • SSDEEP

    12288:zPqnHvjNIrpf9rN/mc/CQw5PXdFPemY3kI26WE+34DO2IOxzV2SYm9nEix9H82rF:zyPjKr5BNDuXvfY0RfmIkzLNP5rJ

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.starmech.net
  • Port:
    587
  • Username:
    electronics@starmech.net
  • Password:
    nics123
  • Email To:
    godwingodwin397@gmail.com

Signatures

  • AgentTesla

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

  • 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.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • 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).

  • Creates scheduled task(s) 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 SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 25 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Invoice.exe
    "C:\Users\Admin\AppData\Local\Temp\Invoice.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2172
    • 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\Invoice.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2760
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\kaJNzBnxbXm.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2328
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\kaJNzBnxbXm" /XML "C:\Users\Admin\AppData\Local\Temp\tmp585D.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2604
    • C:\Users\Admin\AppData\Local\Temp\Invoice.exe
      "C:\Users\Admin\AppData\Local\Temp\Invoice.exe"
      2⤵
        PID:2624
      • C:\Users\Admin\AppData\Local\Temp\Invoice.exe
        "C:\Users\Admin\AppData\Local\Temp\Invoice.exe"
        2⤵
        • Adds Run key to start application
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:2500

    Network

    MITRE ATT&CK Matrix ATT&CK v13

    Execution

    Scheduled Task/Job

    1
    T1053

    Persistence

    Boot or Logon Autostart Execution

    1
    T1547

    Registry Run Keys / Startup Folder

    1
    T1547.001

    Scheduled Task/Job

    1
    T1053

    Privilege Escalation

    Boot or Logon Autostart Execution

    1
    T1547

    Registry Run Keys / Startup Folder

    1
    T1547.001

    Scheduled Task/Job

    1
    T1053

    Defense Evasion

    Modify Registry

    1
    T1112

    Credential Access

    Unsecured Credentials

    4
    T1552

    Credentials In Files

    3
    T1552.001

    Credentials in Registry

    1
    T1552.002

    Discovery

    System Information Discovery

    1
    T1082

    Collection

    Data from Local System

    4
    T1005

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\tmp585D.tmp
      Filesize

      1KB

      MD5

      9ab70bd58da3ef61208b2fb5e037e95c

      SHA1

      bce34e420712fdf4968f006d930154aa85064c83

      SHA256

      33dc015d14740658fb40ac0bde0c139019c804128110dbd4916d6bda11e08415

      SHA512

      f1cea74139ddaeba9de71670ac78ebb8b334f757f9e2023a4fd3aba5782507a7e9ad23a791666959946e2e1e0a40abf040d0592008247bf04c4789d4a7626d49

    • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\XM1FEPYI3EQLMKMRNC62.temp
      Filesize

      7KB

      MD5

      264eccbf073bb233f4c99a68fc04731e

      SHA1

      125879496a552c54f429ef1d9e53c1ddcc2204cc

      SHA256

      0ddcc2d084f9ba187383dfd3b4c6ac74bb5e59866d05cec83343a026516f1882

      SHA512

      dda97f9f1de6c8a4317960fc3fab97f22f73806676319ebed4426cdae1fb8213d99c4e2e0a86e4e4202a45041803c33bd41559fe524adda607c0da0ac1c9043d

    • memory/2172-30-0x0000000073FD0000-0x00000000746BE000-memory.dmp
      Filesize

      6.9MB

    • memory/2172-1-0x0000000073FD0000-0x00000000746BE000-memory.dmp
      Filesize

      6.9MB

    • memory/2172-2-0x0000000004E20000-0x0000000004E60000-memory.dmp
      Filesize

      256KB

    • memory/2172-3-0x00000000005D0000-0x00000000005F0000-memory.dmp
      Filesize

      128KB

    • memory/2172-4-0x0000000000950000-0x0000000000964000-memory.dmp
      Filesize

      80KB

    • memory/2172-5-0x0000000005A20000-0x0000000005AA2000-memory.dmp
      Filesize

      520KB

    • memory/2172-0-0x00000000012E0000-0x00000000013B4000-memory.dmp
      Filesize

      848KB

    • memory/2500-29-0x0000000000400000-0x0000000000442000-memory.dmp
      Filesize

      264KB

    • memory/2500-27-0x0000000000400000-0x0000000000442000-memory.dmp
      Filesize

      264KB

    • memory/2500-26-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
      Filesize

      4KB

    • memory/2500-24-0x0000000000400000-0x0000000000442000-memory.dmp
      Filesize

      264KB

    • memory/2500-22-0x0000000000400000-0x0000000000442000-memory.dmp
      Filesize

      264KB

    • memory/2500-20-0x0000000000400000-0x0000000000442000-memory.dmp
      Filesize

      264KB

    • memory/2500-18-0x0000000000400000-0x0000000000442000-memory.dmp
      Filesize

      264KB

    • memory/2500-28-0x0000000000400000-0x0000000000442000-memory.dmp
      Filesize

      264KB