Analysis

  • max time kernel
    154s
  • max time network
    162s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13-04-2023 15:17

General

  • Target

    Undertale/Undertale Setup.exe

  • Size

    117.7MB

  • MD5

    78d20884005dd7b4f01487270ca8414a

  • SHA1

    c61ccab304edb844257abf20bf4af01129402a32

  • SHA256

    be571d8d78f5a13bd804ea289be2a0224a29dd37893312668c62c5f347606e67

  • SHA512

    870308d9c893dbd5e18e0abee87b65b4b73f268e7108bf7914c54504d8220864b75485ad550487a8c13fb649b20b467d3c7f01b50f420c92cb8ddbc74ae2b2e3

  • SSDEEP

    3145728:/dbuLhfkuy+v6k8c5hP6oA2+tnS+FTi/5ZnWwY4Gf6YB5qZeHEJf:/ELhfkNm6eUC+QYiBZnWb4GfJBKeq

Malware Config

Signatures

  • SnakeBOT

    SnakeBOT is a heavily obfuscated .NET downloader.

  • Contains SnakeBOT related strings 1 IoCs
  • ACProtect 1.3x - 1.4x DLL software 2 IoCs

    Detects file using ACProtect software.

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

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

  • 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). Likely ransomware behaviour.

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 12 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Undertale\Undertale Setup.exe
    "C:\Users\Admin\AppData\Local\Temp\Undertale\Undertale Setup.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:368
    • C:\Users\Admin\AppData\Local\Temp\is-1BNMA.tmp\Undertale Setup.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-1BNMA.tmp\Undertale Setup.tmp" /SL5="$70150,122986545,156672,C:\Users\Admin\AppData\Local\Temp\Undertale\Undertale Setup.exe"
      2⤵
      • Executes dropped EXE
      • Drops file in Program Files directory
      • Suspicious use of WriteProcessMemory
      PID:2132
      • C:\Program Files (x86)\Undertale\UNDERTALE.exe
        "C:\Program Files (x86)\Undertale\UNDERTALE.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of SetWindowsHookEx
        PID:2588
  • C:\Windows\system32\AUDIODG.EXE
    C:\Windows\system32\AUDIODG.EXE 0x508 0x510
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:4380
  • C:\Windows\System32\GameBarPresenceWriter.exe
    "C:\Windows\System32\GameBarPresenceWriter.exe" -ServerName:Windows.Gaming.GameBar.Internal.PresenceWriterServer
    1⤵
      PID:1972
    • C:\Windows\system32\OpenWith.exe
      C:\Windows\system32\OpenWith.exe -Embedding
      1⤵
      • Suspicious use of SetWindowsHookEx
      PID:5024
    • 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:4944

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Discovery

    Query Registry

    2
    T1012

    System Information Discovery

    2
    T1082

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Program Files (x86)\Undertale\D3DX9_43.dll
      Filesize

      1.9MB

      MD5

      86e39e9161c3d930d93822f1563c280d

      SHA1

      f5944df4142983714a6d9955e6e393d9876c1e11

      SHA256

      0b28546be22c71834501f7d7185ede5d79742457331c7ee09efc14490dd64f5f

      SHA512

      0a3e311c4fd5c2194a8807469e47156af35502e10aeb8a3f64a01ff802cd8669c7e668cc87b593b182fd830a126d002b5d5d7b6c77991158bffdb0b5b997f6b3

    • C:\Program Files (x86)\Undertale\UNDERTALE.exe
      Filesize

      3.6MB

      MD5

      93d87952773a2bb59a8667d0bc06c2c0

      SHA1

      480c87f42e8ecbcde1104f4a61de5dee6a9cb3c5

      SHA256

      9ec41f5094544c938fc075f5506c089d0c1e11fb93afba79a196981bef81d19b

      SHA512

      d9fce47e5c037e4954437c95abea6959e39c91d0bcd596f1c3267e5c09e5a0defade4c63617609b5386879bcae06e3c60e909fcf2476e250bc960eea0c2d1c6d

    • C:\Program Files (x86)\Undertale\UNDERTALE.exe
      Filesize

      3.6MB

      MD5

      93d87952773a2bb59a8667d0bc06c2c0

      SHA1

      480c87f42e8ecbcde1104f4a61de5dee6a9cb3c5

      SHA256

      9ec41f5094544c938fc075f5506c089d0c1e11fb93afba79a196981bef81d19b

      SHA512

      d9fce47e5c037e4954437c95abea6959e39c91d0bcd596f1c3267e5c09e5a0defade4c63617609b5386879bcae06e3c60e909fcf2476e250bc960eea0c2d1c6d

    • C:\Program Files (x86)\Undertale\UNDERTALE.exe
      Filesize

      3.6MB

      MD5

      93d87952773a2bb59a8667d0bc06c2c0

      SHA1

      480c87f42e8ecbcde1104f4a61de5dee6a9cb3c5

      SHA256

      9ec41f5094544c938fc075f5506c089d0c1e11fb93afba79a196981bef81d19b

      SHA512

      d9fce47e5c037e4954437c95abea6959e39c91d0bcd596f1c3267e5c09e5a0defade4c63617609b5386879bcae06e3c60e909fcf2476e250bc960eea0c2d1c6d

    • C:\Program Files (x86)\Undertale\d3dx9_43.dll
      Filesize

      1.9MB

      MD5

      86e39e9161c3d930d93822f1563c280d

      SHA1

      f5944df4142983714a6d9955e6e393d9876c1e11

      SHA256

      0b28546be22c71834501f7d7185ede5d79742457331c7ee09efc14490dd64f5f

      SHA512

      0a3e311c4fd5c2194a8807469e47156af35502e10aeb8a3f64a01ff802cd8669c7e668cc87b593b182fd830a126d002b5d5d7b6c77991158bffdb0b5b997f6b3

    • C:\Program Files (x86)\Undertale\data.win
      Filesize

      55.2MB

      MD5

      a7728805e9789cb1288e6d807aa46833

      SHA1

      9c07858aa3ea04319644cc246d04ffa2dd77323c

      SHA256

      36e4544d49fbba8f484cd1c629085d240139b54e07dab6a466f0dd36f1753e98

      SHA512

      f8f54db54d921eff62327733d8a4811dc1c0e5c0fd3b9c898a84cdfeba513ec8e9dde2a333ef411b0190106c80e0a2a1776dc927d3ad9e62d0b515999690237d

    • C:\Program Files (x86)\Undertale\mus_intronoise.ogg
      Filesize

      38KB

      MD5

      f851df4bc59e60e9be07e2ba413b44a0

      SHA1

      1004c711725031a7ed4b48fe9647cd03670d8385

      SHA256

      85dbde2ff5894d1942618b763e3d70af7d5c46c09da77ea772bbe93a858b70fd

      SHA512

      47f4a4e11eefd3f0fbae3a85125d82321a8a9b69d06cd5e3acc124f6a4909b4cfe36830a10a3020f04c58410913913de1ed4606b16c76d44198d6bb493bf73bc

    • C:\Program Files (x86)\Undertale\mus_menu0.ogg
      Filesize

      199KB

      MD5

      6a29fbe5262d5b28bdd3e401348870a6

      SHA1

      9c2097c504a7223157aa1207a71e5254ab6f3f98

      SHA256

      69c40b001e1391f2d28170523e02e2bf27b582e28c8c8ffd4c70ebb5d9b31344

      SHA512

      cc825987f964434996a2354e93cc41752b7bf1615b085c59ba2472861b606cc76c8d449db05662abc13eea015ec976cf0e0e0ace22f39474d6b8ba833532c339

    • C:\Program Files (x86)\Undertale\mus_story.ogg
      Filesize

      648KB

      MD5

      d616e0ef2ae212ae0717c1b3838d2cd6

      SHA1

      eec3f046a8ad007b8fca4cc843ad62db267a59bf

      SHA256

      65688e20f6a2fc02ad2736db1a7106289f5a6cde5114daa326f85b930fc73209

      SHA512

      777f61c394141e2f883897367ff5c984875b5bbb49f70c2153cc5d51566c8ce2f02aae3d963846644479486b96f8f0c07bcd9581b5b8fc43a50a5efbea9d5f62

    • C:\Program Files (x86)\Undertale\options.ini
      Filesize

      97B

      MD5

      396f73a1185a5642f5f1e2538b64396a

      SHA1

      d72d687a5a1258986f218bfccacc6118c39ec4f9

      SHA256

      e267293f58d257d2dd1e00ad25425bdb798fcbf75256a7d45b7d7086159dbc58

      SHA512

      e17cfca14ce79c71eea01973385fa4151989d40bfc5a04b97fd3534ff5b4f04b385d11867d80a60325aa0bd13403910fee73ab9379f0e05c669d24d5d95957da

    • C:\Program Files (x86)\Undertale\splash.png
      Filesize

      893B

      MD5

      188cf6da0fd3f7ec3e1be7d6a2c38663

      SHA1

      17f12013c22612b58382ab7ef01da4a96036fb9a

      SHA256

      358239b9859b8b15135b8092ce1cf45473db83e0cbe50c632bcd2a510d41cd05

      SHA512

      4d60a961cd3f30d180f07fd894d74db0f730e93323338b112918c44719f2d2cc4b4b18803288fc0d047710840cbc78106fb3eb13a6249747b6d21fb7382fda45

    • C:\Program Files (x86)\Undertale\steam_api.dll
      Filesize

      251KB

      MD5

      23767288e6a003aaaa54355cbe108da8

      SHA1

      c7f21dc71491fe661c698f5c561405c0e3f423c1

      SHA256

      209135c082a8ef8323479384e97d769d9b2d98f727bbb34a7806ce150b750c89

      SHA512

      a870b2f99da48ad07f9b36d6730d74af5f285af12e21a24d61e6e3023d5917920bd343fe295b7374a2065bf9c09b6f1cbb03fbcf05206f4bd0544b5f0eb0e147

    • C:\Program Files (x86)\Undertale\steam_api.dll
      Filesize

      251KB

      MD5

      23767288e6a003aaaa54355cbe108da8

      SHA1

      c7f21dc71491fe661c698f5c561405c0e3f423c1

      SHA256

      209135c082a8ef8323479384e97d769d9b2d98f727bbb34a7806ce150b750c89

      SHA512

      a870b2f99da48ad07f9b36d6730d74af5f285af12e21a24d61e6e3023d5917920bd343fe295b7374a2065bf9c09b6f1cbb03fbcf05206f4bd0544b5f0eb0e147

    • C:\Program Files (x86)\Undertale\steam_emu.ini
      Filesize

      2KB

      MD5

      f98efa05e4c224bec6df0f38c1f41801

      SHA1

      b73f247e46657c5e78c410d7d5bef50dac8c172e

      SHA256

      303cfb51ad5a389296c7c86e4aea6d450276078d40d848df4a334e70d5b77885

      SHA512

      13bad72f40efb3ca91bc28490974af4a7a40c6da5b11ae2f277cc24def56c32b2f9381b09c11a028e5bd27966f88085eb98aebb6f81e7893efdd76bc3981cf4a

    • C:\Users\Admin\AppData\Local\Temp\is-1BNMA.tmp\Undertale Setup.tmp
      Filesize

      770KB

      MD5

      c16e0a69c8488637d4d61957a7a99fe2

      SHA1

      66de164a6b8365aba6220f96df28153c542ca5cc

      SHA256

      a120ee95eb39faba843f3f7afd8c9507c93a665ba12c1c9853c6e8c5aac4c5b1

      SHA512

      5fc87953210e62beabbf5f98398a408254192bd1ed87bbf288351ddccead248077a1c0d213b721878abf090d0c50a6e49e5cafd79226f676c5b9da588e287e2d

    • C:\Users\Admin\AppData\Local\Temp\is-1BNMA.tmp\Undertale Setup.tmp
      Filesize

      770KB

      MD5

      c16e0a69c8488637d4d61957a7a99fe2

      SHA1

      66de164a6b8365aba6220f96df28153c542ca5cc

      SHA256

      a120ee95eb39faba843f3f7afd8c9507c93a665ba12c1c9853c6e8c5aac4c5b1

      SHA512

      5fc87953210e62beabbf5f98398a408254192bd1ed87bbf288351ddccead248077a1c0d213b721878abf090d0c50a6e49e5cafd79226f676c5b9da588e287e2d

    • C:\Users\Admin\Videos\Captures\desktop.ini
      Filesize

      190B

      MD5

      b0d27eaec71f1cd73b015f5ceeb15f9d

      SHA1

      62264f8b5c2f5034a1e4143df6e8c787165fbc2f

      SHA256

      86d9f822aeb989755fac82929e8db369b3f5f04117ef96fd76e3d5f920a501d2

      SHA512

      7b5c9783a0a14b600b156825639d24cbbc000f5066c48ce9fecc195255603fc55129aaaca336d7ce6ad4e941d5492b756562f2c7a1d151fcfc2dabac76f3946c

    • memory/368-644-0x0000000000400000-0x000000000042D000-memory.dmp
      Filesize

      180KB

    • memory/368-145-0x0000000000400000-0x000000000042D000-memory.dmp
      Filesize

      180KB

    • memory/368-133-0x0000000000400000-0x000000000042D000-memory.dmp
      Filesize

      180KB

    • memory/2132-496-0x0000000000400000-0x00000000004CF000-memory.dmp
      Filesize

      828KB

    • memory/2132-643-0x0000000000400000-0x00000000004CF000-memory.dmp
      Filesize

      828KB

    • memory/2132-172-0x0000000000400000-0x00000000004CF000-memory.dmp
      Filesize

      828KB

    • memory/2132-146-0x0000000000400000-0x00000000004CF000-memory.dmp
      Filesize

      828KB

    • memory/2132-144-0x0000000000590000-0x0000000000591000-memory.dmp
      Filesize

      4KB

    • memory/2588-653-0x00000000028F0000-0x00000000028F1000-memory.dmp
      Filesize

      4KB

    • memory/2588-652-0x0000000074790000-0x0000000074841000-memory.dmp
      Filesize

      708KB

    • memory/2588-660-0x0000000074790000-0x0000000074841000-memory.dmp
      Filesize

      708KB

    • memory/2588-678-0x0000000074790000-0x0000000074841000-memory.dmp
      Filesize

      708KB