Resubmissions

01-10-2024 14:05

241001-rd5n2axcrc 7

01-10-2024 14:03

241001-rct6xashpl 10

01-10-2024 13:36

241001-qwjzlssblq 7

Analysis

  • max time kernel
    194s
  • max time network
    198s
  • platform
    windows10-1703_x64
  • resource
    win10-20240404-en
  • resource tags

    arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system
  • submitted
    01-10-2024 14:05

General

  • Target

    Set-up.exe

  • Size

    9.5MB

  • MD5

    bb85c40120dac356bfc311f4774d3439

  • SHA1

    bdcc094a88aa8971753da0c86e05c68578e5ce84

  • SHA256

    cff579e5facdd493e0b023979049f4504ffc611c352a7d97928943e61c66dd0d

  • SHA512

    d15e22befdcc9de94b68552e87d3175694e5d70cc4577d9916a523e34bbaee65991730fe71cc4075561c7247ff8d8e7126ce1b4a7f795d2fa3c7276604a32e05

  • SSDEEP

    49152:G+ACxZPpFDaaekodusejnK99nJeO+3nXn0Ext9V6qrzDTAQg0JZ+Wm+vfYM8sF1K:G+zxZxhUkIeG

Malware Config

Signatures

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 3 IoCs
  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Drops file in Windows directory 2 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.

  • Checks SCSI registry key(s) 3 TTPs 3 IoCs

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

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • 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 25 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of FindShellTrayWindow 51 IoCs
  • Suspicious use of SendNotifyMessage 51 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Set-up.exe
    "C:\Users\Admin\AppData\Local\Temp\Set-up.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Checks processor information in registry
    • Suspicious use of WriteProcessMemory
    PID:1164
    • C:\Users\Admin\AppData\Local\Temp\service123.exe
      "C:\Users\Admin\AppData\Local\Temp\service123.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      PID:4100
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /create /tn "ServiceData4" /tr "C:\Users\Admin\AppData\Local\Temp\/service123.exe" /st 00:01 /du 9800:59 /sc once /ri 1 /f
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:4712
  • C:\Windows\System32\rundll32.exe
    C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
    1⤵
      PID:2900
    • C:\Users\Admin\AppData\Local\Temp\service123.exe
      C:\Users\Admin\AppData\Local\Temp\/service123.exe
      1⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:2672
    • C:\Windows\system32\taskmgr.exe
      "C:\Windows\system32\taskmgr.exe" /7
      1⤵
      • Drops file in Windows directory
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:1812
    • C:\Users\Admin\AppData\Local\Temp\service123.exe
      C:\Users\Admin\AppData\Local\Temp\/service123.exe
      1⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:860

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/860-42-0x00000000000B0000-0x00000000000C2000-memory.dmp

      Filesize

      72KB

    • memory/1164-0-0x0000000000250000-0x0000000000BE3000-memory.dmp

      Filesize

      9.6MB

    • memory/1164-1-0x0000000000250000-0x0000000000BE3000-memory.dmp

      Filesize

      9.6MB

    • memory/1164-10-0x0000000000250000-0x0000000000BE3000-memory.dmp

      Filesize

      9.6MB

    • memory/2672-22-0x00000000000B0000-0x00000000000C2000-memory.dmp

      Filesize

      72KB

    • memory/4100-12-0x00000000000B0000-0x00000000000C2000-memory.dmp

      Filesize

      72KB

    • memory/4100-13-0x00000000746A0000-0x00000000747D4000-memory.dmp

      Filesize

      1.2MB