Overview

overview

10

Static

static

10

Loader3.0.exe

windows7-x64

9

Loader3.0.exe

windows10-2004-x64

9

Analysis

  • max time kernel
    143s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240709-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29/07/2024, 14:39

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General

  • Target
    Loader3.0.exe
  • Size 147KB
  • Sample240729-r1p7vsshmn
  • SHA256 6dd7522accb6773bade16720b53ca577574defae5b1c7caf4b7fc6826dfed7e7
  • MD5 SHA1 SHA512 SSDEEP
Score
9/10
defense_evasiondiscoveryransomwarespywarestealer

Malware Config

Signatures

  • Renames multiple (617) files with added filename extension

    This suggests ransomware activity of encrypting all the files on the system.

    ransomware
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

    spywarestealer
  • Drops desktop.ini file(s) 2 IoCs
  • Indicator Removal: File Deletion 1 TTPs

    Adversaries may delete files left behind by the actions of their intrusion activity.

    defense_evasion
  • Drops file in System32 directory 4 IoCs
  • Sets desktop wallpaper using registry 2 TTPs 2 IoCs
    ransomware
  • Suspicious use of NtSetInformationThreadHideFromDebugger 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.

    discovery
  • Checks processor information in registry 2 TTPs 3 IoCs

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

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Modifies Control Panel 2 IoCs
    evasion
  • Modifies registry class 5 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: RenamesItself 26 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of SetWindowsHookEx 13 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Loader3.0.exe
    "C:\Users\Admin\AppData\Local\Temp\Loader3.0.exe"
    1⤵
    • Drops desktop.ini file(s)
    • Sets desktop wallpaper using registry
    • System Location Discovery: System Language Discovery
    • Modifies Control Panel
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4816
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
      • Drops file in System32 directory
      PID:4804
    • C:\ProgramData\A13D.tmp
      "C:\ProgramData\A13D.tmp"
      2⤵
      • Checks computer location settings
      • Deletes itself
      • Executes dropped EXE
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: RenamesItself
      • Suspicious use of WriteProcessMemory
      PID:316
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C DEL /F /Q C:\PROGRA~3\A13D.tmp >> NUL
        3⤵
        • System Location Discovery: System Language Discovery
        PID:3988
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k PrintWorkflow -s PrintWorkflowUserSvc
    1⤵
      PID:1812
    • C:\Windows\system32\printfilterpipelinesvc.exe
      C:\Windows\system32\printfilterpipelinesvc.exe -Embedding
      1⤵
      • Drops file in System32 directory
      • Suspicious use of WriteProcessMemory
      PID:2024
      • C:\Program Files\Microsoft Office\root\Office16\ONENOTE.EXE
        /insertdoc "C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\{21531C12-90E3-41F3-902E-24EA20E8DC3C}.xps" 133667376727670000
        2⤵
        • Checks processor information in registry
        • Enumerates system info in registry
        • Suspicious use of SetWindowsHookEx
        PID:208

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

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          Downloads

          desktop.ini
          • Path C:\$Recycle.Bin\S-1-5-21-384068567-2943195810-3631207890-1000\desktop.ini
          • Size 129B
          • SHA256 551f8ec529c89590e37cbadc246ffa59d25ec149b2c4c820dca533a87e573d34
          • MD5 SHA1 SHA512
          Submit Download

          Jw5Jgl9mC.README.txt
          • Path C:\Jw5Jgl9mC.README.txt
          • Size 1KB
          • SHA256 7b3daacf846fe79840647e67d9c5226a7fda47d5b32c24d874654e8ff78ffcc9
          • MD5 SHA1 SHA512
          Submit Download

          A13D.tmp
          • Path C:\ProgramData\A13D.tmp
          • Size 14KB
          • SHA256 917e115cc403e29b4388e0d175cbfac3e7e40ca1742299fbdb353847db2de7c2
          • MD5 SHA1 SHA512 SSDEEP
          Submit Download

          DDDDDDDDDDDDD
          • Path C:\Users\Admin\AppData\Local\Temp\DDDDDDDDDDDDD
          • Size 147KB
          • SHA256 0d891a838eca559966c2330200a3b9e77fd5a6c17696402175d642478f2df39c
          • MD5 SHA1 SHA512 SSDEEP
          Submit Download

          {5D0983CE-6666-4206-A2A1-07DA41075BFE}
          • Path C:\Users\Admin\AppData\Local\Temp\{5D0983CE-6666-4206-A2A1-07DA41075BFE}
          • Size 4KB
          • SHA256 866f8a5da5561cc2321af3d85d2dc8478b8bed0c99a62dab843c6c3ccb596c02
          • MD5 SHA1 SHA512 SSDEEP
          Submit Download

          Open Notebook.onetoc2
          • Path C:\Users\Admin\Documents\OneNote Notebooks\My Notebook\Open Notebook.onetoc2
          • Size 4KB
          • SHA256 db5541d018b2043035e7113d3fdefaee2c83f1de356becc26e9ef16cc0736875
          • MD5 SHA1 SHA512 SSDEEP
          Submit Download

          DDDDDDDDDDD
          • Path F:\$RECYCLE.BIN\S-1-5-21-384068567-2943195810-3631207890-1000\DDDDDDDDDDD
          • Size 129B
          • SHA256 3049ebe1565722b8d7491f98200a949d358be578a1bfa40f17f7af1ca3486e69
          • MD5 SHA1 SHA512
          Submit Download

          memory/208-2958-0x00007FF8CB530000-0x00007FF8CB540000-memory.dmp
          Download

          memory/208-2960-0x00007FF8CB530000-0x00007FF8CB540000-memory.dmp
          Download

          memory/208-2962-0x00007FF8CB530000-0x00007FF8CB540000-memory.dmp
          Download

          memory/208-2961-0x00007FF8CB530000-0x00007FF8CB540000-memory.dmp
          Download

          memory/208-2959-0x00007FF8CB530000-0x00007FF8CB540000-memory.dmp
          Download

          memory/208-2968-0x00007FF8C8BD0000-0x00007FF8C8BE0000-memory.dmp
          Download

          memory/208-2996-0x00007FF8C8BD0000-0x00007FF8C8BE0000-memory.dmp
          Download

          memory/4816-2945-0x00000000026C0000-0x00000000026D0000-memory.dmp
          Download

          memory/4816-2946-0x00000000026C0000-0x00000000026D0000-memory.dmp
          Download

          memory/4816-0-0x00000000026C0000-0x00000000026D0000-memory.dmp
          Download

          memory/4816-1-0x00000000026C0000-0x00000000026D0000-memory.dmp
          Download