Analysis

  • max time kernel
    139s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    31/08/2024, 16:30

General

  • Target

    8bc8b49458d5fb7d228bb2541189e2de7122f6819087c7eb00fcf215bdcaf7c7.exe

  • Size

    455KB

  • MD5

    3cb174f4e9e4b44c8360597692bc259c

  • SHA1

    723d56d0072e09eafe242c050a9f0cc422b92ee0

  • SHA256

    8bc8b49458d5fb7d228bb2541189e2de7122f6819087c7eb00fcf215bdcaf7c7

  • SHA512

    00a382f11ff2ceaf7de3555597a95a1faa8a2cb78f7c8fe461db1dee9f1c93ad4a2e47bc071ae5d819006246e62405d2f1f153457bab84bf5f1cb748e5d7075c

  • SSDEEP

    6144:bdcZ430nBPewKZ50Qg/gypH8sh1CHreDbUL4Vp/RX6F/937MwY0uUYY0SA:bdKswKZCQgoKHvCreDbULORqZtMwYb7

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.privateemail.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    ValSta@34zzz

Signatures

  • AgentTesla

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

  • AgentTesla payload 1 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.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • 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 3 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 26 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8bc8b49458d5fb7d228bb2541189e2de7122f6819087c7eb00fcf215bdcaf7c7.exe
    "C:\Users\Admin\AppData\Local\Temp\8bc8b49458d5fb7d228bb2541189e2de7122f6819087c7eb00fcf215bdcaf7c7.exe"
    1⤵
    • Looks for VirtualBox Guest Additions in registry
    • Looks for VMWare Tools registry key
    • Checks BIOS information in registry
    • Checks computer location settings
    • 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:3728
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\iCEiPbgmtrby" /XML "C:\Users\Admin\AppData\Local\Temp\tmpFBD0.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:1252
    • C:\Users\Admin\AppData\Local\Temp\8bc8b49458d5fb7d228bb2541189e2de7122f6819087c7eb00fcf215bdcaf7c7.exe
      "C:\Users\Admin\AppData\Local\Temp\8bc8b49458d5fb7d228bb2541189e2de7122f6819087c7eb00fcf215bdcaf7c7.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1560

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1560-17-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/1560-24-0x00000000748E0000-0x0000000075090000-memory.dmp

    Filesize

    7.7MB

  • memory/1560-23-0x00000000748E0000-0x0000000075090000-memory.dmp

    Filesize

    7.7MB

  • memory/1560-22-0x0000000005930000-0x0000000005948000-memory.dmp

    Filesize

    96KB

  • memory/1560-20-0x00000000748E0000-0x0000000075090000-memory.dmp

    Filesize

    7.7MB

  • memory/1560-19-0x00000000748E0000-0x0000000075090000-memory.dmp

    Filesize

    7.7MB

  • memory/3728-4-0x0000000005150000-0x000000000515A000-memory.dmp

    Filesize

    40KB

  • memory/3728-7-0x00000000056C0000-0x00000000056CE000-memory.dmp

    Filesize

    56KB

  • memory/3728-8-0x00000000748EE000-0x00000000748EF000-memory.dmp

    Filesize

    4KB

  • memory/3728-9-0x00000000748E0000-0x0000000075090000-memory.dmp

    Filesize

    7.7MB

  • memory/3728-10-0x0000000006850000-0x00000000068B0000-memory.dmp

    Filesize

    384KB

  • memory/3728-11-0x0000000000E00000-0x0000000000E66000-memory.dmp

    Filesize

    408KB

  • memory/3728-6-0x00000000068F0000-0x000000000698C000-memory.dmp

    Filesize

    624KB

  • memory/3728-5-0x00000000748E0000-0x0000000075090000-memory.dmp

    Filesize

    7.7MB

  • memory/3728-0-0x00000000748EE000-0x00000000748EF000-memory.dmp

    Filesize

    4KB

  • memory/3728-21-0x00000000748E0000-0x0000000075090000-memory.dmp

    Filesize

    7.7MB

  • memory/3728-3-0x0000000005180000-0x0000000005212000-memory.dmp

    Filesize

    584KB

  • memory/3728-2-0x0000000005730000-0x0000000005CD4000-memory.dmp

    Filesize

    5.6MB

  • memory/3728-1-0x00000000006D0000-0x0000000000748000-memory.dmp

    Filesize

    480KB