Overview

overview

7

Static

static

3

Undertale_....8.zip

windows7-x64

1

Undertale_....8.zip

windows10-2004-x64

1

Und 1.8.exe

windows7-x64

7

Und 1.8.exe

windows10-2004-x64

7

Analysis

  • max time kernel
    99s
  • max time network
    55s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13/06/2024, 04:31

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General

  • Target
    Und 1.8.exe
  • Size 118.4MB
  • Sample240613-e5qmzathpb
  • SHA256 be6d7f93a6fa2365c8ce5711a176a53b5e4f9837a6b01a6be8c9b47a1aaa2bbe
  • MD5 SHA1 SHA512 SSDEEP
Score
7/10
discovery

Malware Config

Signatures

  • Deletes itself 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 1 IoCs
  • Checks installed software on the system 1 TTPs

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

    discovery
  • Drops desktop.ini file(s) 1 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Checks processor information in registry 2 TTPs 4 IoCs

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

  • Modifies registry class 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Und 1.8.exe
    "C:\Users\Admin\AppData\Local\Temp\Und 1.8.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2820
    • C:\Users\Admin\AppData\Local\Temp\is-RBIQ7.tmp\Und 1.8.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-RBIQ7.tmp\Und 1.8.tmp" /SL5="$A0208,123733726,121344,C:\Users\Admin\AppData\Local\Temp\Und 1.8.exe"
      2⤵
      • Executes dropped EXE
      • Drops file in Program Files directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:4008
      • C:\Program Files (x86)\Undertale\Undertale.exe
        "C:\Program Files (x86)\Undertale\Undertale.exe"
        3⤵
        • Deletes itself
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious use of SetWindowsHookEx
        PID:3704
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=4572,i,1697479186275492802,18058102846092193784,262144 --variations-seed-version --mojo-platform-channel-handle=4144 /prefetch:8
    1⤵
      PID:4968
    • C:\Windows\System32\GameBarPresenceWriter.exe
      "C:\Windows\System32\GameBarPresenceWriter.exe" -ServerName:Windows.Gaming.GameBar.Internal.PresenceWriterServer
      1⤵
        PID:3180
      • C:\Windows\system32\OpenWith.exe
        C:\Windows\system32\OpenWith.exe -Embedding
        1⤵
        • Suspicious behavior: GetForegroundWindowSpam
        • Suspicious use of SetWindowsHookEx
        PID:1756
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k BcastDVRUserService -s BcastDVRUserService
        1⤵
        • Drops desktop.ini file(s)
        • Checks processor information in registry
        • Modifies registry class
        PID:2700
      • C:\Windows\system32\AUDIODG.EXE
        C:\Windows\system32\AUDIODG.EXE 0x504 0x510
        1⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:4760
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k BcastDVRUserService -s BcastDVRUserService
        1⤵
        • Checks processor information in registry
        • Modifies registry class
        PID:2312

      Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

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            Downloads

            D3DX9_43.dll
            • Path C:\Program Files (x86)\Undertale\D3DX9_43.dll
            • Size 1.9MB
            • SHA256 0b28546be22c71834501f7d7185ede5d79742457331c7ee09efc14490dd64f5f
            • MD5 SHA1 SHA512 SSDEEP
            Submit Download

            UNDERTALE.exe
            • Path C:\Program Files (x86)\Undertale\UNDERTALE.exe
            • Size 3.9MB
            • SHA256 c8c4191026bf5587a6fad120855b8b82ffb4fa0c3eaf10515be472ad84248e58
            • MD5 SHA1 SHA512 SSDEEP
            Submit Download

            mus_story.ogg
            • Path C:\Program Files (x86)\Undertale\mus_story.ogg
            • Size 648KB
            • SHA256 eb5e5463710acba3a2da93ace616cf4a4a42a93ccbc93d8815b08c038fc66463
            • MD5 SHA1 SHA512 SSDEEP
            Submit Download

            options.ini
            • Path C:\Program Files (x86)\Undertale\options.ini
            • Size 97B
            • SHA256 52a59e5417778aac32756ac0617d5b00fd47a9015e54b3865fdc17a867b58cf9
            • MD5 SHA1 SHA512
            Submit Download

            splash.png
            • Path C:\Program Files (x86)\Undertale\splash.png
            • Size 1KB
            • SHA256 4d61c1a05b596720523f442bed39d04067d19f7c306073e2306f282e1198c554
            • MD5 SHA1 SHA512
            Submit Download

            Und 1.8.tmp
            • Path C:\Users\Admin\AppData\Local\Temp\is-RBIQ7.tmp\Und 1.8.tmp
            • Size 1.1MB
            • SHA256 821bd11693bf4b4b2b9f3c196036e1f4902abd95fb26873ea6c43e123b8c9431
            • MD5 SHA1 SHA512 SSDEEP
            Submit Download

            desktop.ini
            • Path C:\Users\Admin\Videos\Captures\desktop.ini
            • Size 190B
            • SHA256 86d9f822aeb989755fac82929e8db369b3f5f04117ef96fd76e3d5f920a501d2
            • MD5 SHA1 SHA512
            Submit Download

            memory/2820-8-0x0000000000400000-0x0000000000428000-memory.dmp
            Download

            memory/2820-0-0x0000000000400000-0x0000000000428000-memory.dmp
            Download

            memory/2820-488-0x0000000000400000-0x0000000000428000-memory.dmp
            Download

            memory/2820-2-0x0000000000401000-0x0000000000412000-memory.dmp
            Download

            memory/4008-218-0x0000000000400000-0x000000000052D000-memory.dmp
            Download

            memory/4008-15-0x0000000000400000-0x000000000052D000-memory.dmp
            Download

            memory/4008-9-0x0000000000400000-0x000000000052D000-memory.dmp
            Download

            memory/4008-487-0x0000000000400000-0x000000000052D000-memory.dmp
            Download

            memory/4008-6-0x0000000000400000-0x000000000052D000-memory.dmp
            Download