Analysis

  • max time kernel
    143s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26-09-2022 20:19

General

  • Target

    Good.ps1

  • Size

    1KB

  • MD5

    f352e9ea5b48e556410878e8204434f5

  • SHA1

    3e6be512bdf272021faf840ce76d149631c322f5

  • SHA256

    e05a116bf80f3d77481a9962caa9d0d8544f287dfd6b6c865054e8ea9c9f6826

  • SHA512

    8d08c60a887dec659abfae2f10fadb426640d3e3a56394b18b382dd0c43759c6dd7504f6fe17a720cd7c412bf6f97ae8f9fb0940ee11b3a64891446218444b21

Malware Config

Extracted

Family

asyncrat

Version

| Edit 3LOSH RAT

Botnet

Default

C2

worldpassed.publicvm.com:199

Mutex

AsyncMutex_6SI8OkBrC

Attributes
  • delay

    3

  • install

    false

  • install_folder

    %AppData%

aes.plain

Signatures

  • AsyncRat

    AsyncRAT is designed to remotely monitor and control other computers.

  • UAC bypass 3 TTPs 1 IoCs
  • Async RAT payload 2 IoCs
  • Blocklisted process makes network request 1 IoCs
  • Checks computer location settings 2 TTPs 7 IoCs

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

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Kills process with taskkill 1 IoCs
  • Modifies registry class 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 15 IoCs
  • Suspicious use of AdjustPrivilegeToken 9 IoCs
  • Suspicious use of WriteProcessMemory 40 IoCs

Processes

  • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\Good.ps1
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3284
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c powershell < C:\Users\Admin\AppData\Roaming/educational.png
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4064
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        powershell
        3⤵
        • Blocklisted process makes network request
        • Modifies registry class
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:3512
        • C:\Windows\system32\cmd.exe
          "C:\Windows\system32\cmd.exe" /c POWeRSHeLL.eXe -NOP -WIND HIDDeN -eXeC BYPASS -NONI [BYTe[]]
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:4460
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            POWeRSHeLL.eXe -NOP -WIND HIDDeN -eXeC BYPASS -NONI [BYTe[]]
            5⤵
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:4416
        • C:\Windows\System32\WScript.exe
          "C:\Windows\System32\WScript.exe" "C:\Users\Admin\Favorites\a.vbs"
          4⤵
          • Checks computer location settings
          • Suspicious use of WriteProcessMemory
          PID:756
          • C:\Windows\system32\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\Favorites\a.bat" "
            5⤵
            • Suspicious use of WriteProcessMemory
            PID:4664
            • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
              PowerShell -NoProfile -ExecutionPolicy Bypass -Command C:\Users\Admin\Favorites\b.ps1
              6⤵
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of AdjustPrivilegeToken
              • Suspicious use of WriteProcessMemory
              PID:4348
              • C:\Windows\system32\cmstp.exe
                "C:\Windows\system32\cmstp.exe" /au C:\Windows\temp\kvgse0yn.inf
                7⤵
                  PID:3728
          • C:\Windows\system32\schtasks.exe
            "C:\Windows\system32\schtasks.exe" /create /tn administartor /sc minute /st 00:10 /tr C:\Users\Admin\Favorites\System.vbs
            4⤵
            • Creates scheduled task(s)
            PID:1468
    • C:\Windows\system32\mshta.exe
      mshta vbscript:Execute("CreateObject(""WScript.Shell"").Run ""cmd.exe /c start """""""" """"%USERPROFILE%\Favorites\Assembly.vbs"""""",0:close")
      1⤵
      • Checks computer location settings
      • Suspicious use of WriteProcessMemory
      PID:552
      • C:\Windows\System32\cmd.exe
        "C:\Windows\System32\cmd.exe" /c start "" "C:\Users\Admin\Favorites\Assembly.vbs"
        2⤵
        • Checks computer location settings
        • Modifies registry class
        • Suspicious use of WriteProcessMemory
        PID:3088
        • C:\Windows\System32\WScript.exe
          "C:\Windows\System32\WScript.exe" "C:\Users\Admin\Favorites\Assembly.vbs"
          3⤵
          • Checks computer location settings
          • Suspicious use of WriteProcessMemory
          PID:1332
          • C:\Windows\system32\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\Favorites\x.bat" "
            4⤵
            • Suspicious use of WriteProcessMemory
            PID:484
            • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
              PowerShell -NoProfile -ExecutionPolicy Bypass -Command C:\Users\Admin\Favorites\x.ps1
              5⤵
              • UAC bypass
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of AdjustPrivilegeToken
              PID:2276
    • C:\Windows\system32\mshta.exe
      mshta vbscript:Execute("CreateObject(""WScript.Shell"").Run ""taskkill /IM cmstp.exe /F"", 0, true:close")
      1⤵
      • Checks computer location settings
      • Suspicious use of WriteProcessMemory
      PID:4092
      • C:\Windows\System32\taskkill.exe
        "C:\Windows\System32\taskkill.exe" /IM cmstp.exe /F
        2⤵
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:3920
    • C:\Windows\System32\WScript.exe
      C:\Windows\System32\WScript.exe "C:\Users\Admin\Favorites\System.vbs"
      1⤵
      • Checks computer location settings
      • Suspicious use of WriteProcessMemory
      PID:4692
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass & C:\Users\Admin\Favorites\micro.ps1
        2⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1764
    • C:\Windows\System32\WScript.exe
      C:\Windows\System32\WScript.exe "C:\Users\Admin\Favorites\System.vbs"
      1⤵
      • Checks computer location settings
      • Suspicious use of WriteProcessMemory
      PID:3464
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass & C:\Users\Admin\Favorites\micro.ps1
        2⤵
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:1648
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
          3⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:3660

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Execution

    Scheduled Task

    1
    T1053

    Persistence

    Scheduled Task

    1
    T1053

    Privilege Escalation

    Bypass User Account Control

    1
    T1088

    Scheduled Task

    1
    T1053

    Defense Evasion

    Bypass User Account Control

    1
    T1088

    Disabling Security Tools

    1
    T1089

    Modify Registry

    1
    T1112

    Discovery

    Query Registry

    1
    T1012

    System Information Discovery

    2
    T1082

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log
      Filesize

      3KB

      MD5

      556084f2c6d459c116a69d6fedcc4105

      SHA1

      633e89b9a1e77942d822d14de6708430a3944dbc

      SHA256

      88cc4f40f0eb08ff5c487d6db341b046cc63b22534980aca66a9f8480692f3a8

      SHA512

      0f6557027b098e45556af93e0be1db9a49c6416dc4afcff2cc2135a8a1ad4f1cf7185541ddbe6c768aefaf2c1a8e52d5282a538d15822d19932f22316edd283e

    • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
      Filesize

      1KB

      MD5

      d336b18e0e02e045650ac4f24c7ecaa7

      SHA1

      87ce962bb3aa89fc06d5eb54f1a225ae76225b1c

      SHA256

      87e250ac493525f87051f19207d735b28aa827d025f2865ffc40ba775db9fc27

      SHA512

      e538e4ecf771db02745061f804a0db31f59359f32195b4f8c276054779509eaea63665adf6fedbb1953fa14eb471181eb085880341c7368330d8c3a26605bb18

    • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
      Filesize

      64B

      MD5

      d8b9a260789a22d72263ef3bb119108c

      SHA1

      376a9bd48726f422679f2cd65003442c0b6f6dd5

      SHA256

      d69d47e428298f194850d14c3ce375e7926128a0bfb62c1e75940ab206f8fddc

      SHA512

      550314fab1e363851a7543c989996a440d95f7c9db9695cce5abaad64523f377f48790aa091d66368f50f941179440b1fa94448289ee514d5b5a2f4fe6225e9b

    • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
      Filesize

      64B

      MD5

      446dd1cf97eaba21cf14d03aebc79f27

      SHA1

      36e4cc7367e0c7b40f4a8ace272941ea46373799

      SHA256

      a7de5177c68a64bd48b36d49e2853799f4ebcfa8e4761f7cc472f333dc5f65cf

      SHA512

      a6d754709f30b122112ae30e5ab22486393c5021d33da4d1304c061863d2e1e79e8aeb029cae61261bb77d0e7becd53a7b0106d6ea4368b4c302464e3d941cf7

    • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
      Filesize

      1KB

      MD5

      57866c0b343808442b8657c28107e5cd

      SHA1

      b131d901e867ca5a3de95ca3fc12b5a483137e31

      SHA256

      232e6e16bb2f27daa78c8f60a34e6b2da4314cc004487c0b5b8ed0563d82fb73

      SHA512

      45b9cb4901b36bb32ac1807a43f91b6e023a88ac3f92091051a0162bc275d21b850d6861f15caae188a8ac5c8d3fd9ef8cd8925afb230f4588208b1e449b59cc

    • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
      Filesize

      1KB

      MD5

      f388a8baa0d9cbd6aeb70596278c6c97

      SHA1

      ca0b4c284f5e6968fa1c75829432de2734eafa1d

      SHA256

      1a5deb9b8464f3e296529502c8dbe0c68ef605ad12487805eca52708eb038592

      SHA512

      b75c02c49d87b5f4383223c5c8aa2942b67b09b02b3926f229f863b09b590883d9046962f0c7750b76d6fe9521c92ebafe10e6c341c195fbcd36be54dd600145

    • C:\Users\Admin\AppData\Roaming\educational.png
      Filesize

      251B

      MD5

      292374cd21675135acb516497a730fd9

      SHA1

      f6e019093fc9a0952b7ae2c536b0b9f37071d0bf

      SHA256

      86cf5e4e86c0aae75158c04e13051275c341af7bf54b7a7cd49eced95d21b1b0

      SHA512

      491623e21d1740e234925bf0d1df1ac6402404bbcbad1d3e926ebdca0eeb55e1ab2322d38c7501f28b0a8deda853e087bfc22f34ca9b63995428ba8a3c03da32

    • C:\Users\Admin\Favorites\Assembly.vbs
      Filesize

      331B

      MD5

      66d268811c166c82aaef2f52450b0c73

      SHA1

      f7810c1003732c440b986718a8217dd733e88f74

      SHA256

      581df8170200c95d38ce78eba4e9942d47cad443bbc0148954e48df04eec3b34

      SHA512

      36de3a5f59ee7a531832ae7e43997a3019ad8a15b0d1b321e589a85d77af27dab80b90a0ef5c978c4fffcc4d32fe8d870f60e9cf3e5bff302e4292bfc6196830

    • C:\Users\Admin\Favorites\System.vbs
      Filesize

      121B

      MD5

      dada8407cf4051919362d16a6d735cde

      SHA1

      8a2788926f97dbd59c99ad51b3383c59992c6c2e

      SHA256

      ee512a4266049b505b2b5c6c4c7bd66baadd37eda61bfe7f31f6cfcc1c955a77

      SHA512

      42c6b1fac8502e3b21cbd6cda11601afc55ca539db03667eec7c839bc33c70ed1a6aeba5a3c9684951143658b17183c2782bec8a0108b345c0ac2aebdaa8fc9f

    • C:\Users\Admin\Favorites\UAC-B.dll
      Filesize

      11KB

      MD5

      cc6ba6fc273dbfbb5c9698c0cf4719b9

      SHA1

      a2b3433b728b0874ec69d8a629d5f0dd05c0946d

      SHA256

      320316cdda2aa0e8709472a2b8eb8debcd0f8bb6f9af4d4d4b3bc67068ceebe7

      SHA512

      fe2fe2f150fbf619dd7616c86c93a42446b7c915b92fb865971dcf7dd595c6483da7386ce40b99802dc0942068bd1703821e0e3b15a6ebe557619cf6fa413c61

    • C:\Users\Admin\Favorites\a.bat
      Filesize

      86B

      MD5

      4625a049cd6ea721b706699ab3c36dff

      SHA1

      dbb82c9e8cb7bdcf617e7c4e158d031275b5ec24

      SHA256

      c751a3cb67ab1c75f1de6e24b7193123cc815524c538973110d1f6027da24dc0

      SHA512

      35674c3c1d6c449b3716ddf2ca8733e255a8f642723186a847694fb936b50a91e6bd7ab7f6edf1489592a583109739a4f0c12769823e2fc163860eeb7004b6c0

    • C:\Users\Admin\Favorites\a.vbs
      Filesize

      485B

      MD5

      5ce49e20c572f2b6d4b43fc61a6906ec

      SHA1

      170185b8ab9fc4749f28e5796999c23b50be89dc

      SHA256

      d6a43aad0aa8e510f01409921c8b0b5c8d93d51d1f7f39340db775c164686412

      SHA512

      c49e14c094e4d5e108aa50889a9fb06428a3d7a1f74d868c9b7d37f35658a64ea205b00681ad83aef428113fdf6fead8ef98dd1e6b38d84b8306765025c2e8e3

    • C:\Users\Admin\Favorites\b.ps1
      Filesize

      173B

      MD5

      e1d9cbc41ffacef02695df17824a82e0

      SHA1

      970ae087b8a3d11fb3e2a9b8de1592a166436fa7

      SHA256

      61571d1fd0000c02eef19b7dd6e452e2f9eba2e947f4c96d781e79d35802043f

      SHA512

      3b4034b2072a309adeb1af8b540023791262915f4b1347f4aa27f8aedcbbb6e1126c1a4d5f1db1ce2ad5638d24d7ba3025a8451c291241db2f2a99b0832f620a

    • C:\Users\Admin\Favorites\micro.ps1
      Filesize

      888KB

      MD5

      2c012c85dad2ed3845d3606fb4204d9d

      SHA1

      aae41574a6a9fe13b8552a3aba61bc5a550d4161

      SHA256

      ad4059af90d7d3a2690eef17d4fe45cc1d6b5b8c0ae806bc0d598e5a4838cd84

      SHA512

      7d9da6e1f243a2bd55b7ce91d2657077268612cc176bc279e79fabedcd7cde740534d46289371759532e31676f62f76af602780f4f728437bc8344e62799873d

    • C:\Users\Admin\Favorites\micro.ps1
      Filesize

      444KB

      MD5

      6c7473033862bc8f2d1ca5d2f64593a8

      SHA1

      420a0f9508cf7a6e17ecb7670a9df7cbbb8c24d7

      SHA256

      72842be7f7e16ffbb22c2646b18aa647537742782c2df530ad5076890743ea0e

      SHA512

      2a9eda8fec9f0684bb2a8016868150a660181dabdfb29eec7a942ee4f843c63a854c42aaab2395e418dbb35be11134ec4ff5014e2daa4210bd891238d759f2f2

    • C:\Users\Admin\Favorites\x.bat
      Filesize

      86B

      MD5

      03fc58bceab448c9f183fbe86fed1f11

      SHA1

      07f3d54b0b40755e8f58f5fdab95049def6578e3

      SHA256

      6062f0e764ccd855b61ba49720065dfd6f6c6864c4eb1e9dce95ba8a293fd756

      SHA512

      c0e9aec7a6c5aaae3b018d44f1fbdc1939026ce16fad20211a0521e3db9e470d842508b7d2167672e1585bafeb4b2f1fe694ca96ddb9137ff9e5d3b4ca53ea4f

    • C:\Users\Admin\Favorites\x.ps1
      Filesize

      567B

      MD5

      e9859d3134c68db3134a6ca7df484344

      SHA1

      f4eec5ee9aa11a82d19bdb78a174c574669fd1d8

      SHA256

      a4aaf6c64969788732b20c79c1299719b84a52eddda13778a672195bbfba4a6c

      SHA512

      47982ddf074418c350790f5f7d53edddbbb47e7768939ebf88f4812b01f241c8bff509dbd9a8e6232eb6ec7f8b0344a1a59474ea45da0c80af9f04ba21498cdb

    • C:\Windows\temp\kvgse0yn.inf
      Filesize

      834B

      MD5

      09c0056318d62ee84963c66ae83d6c1b

      SHA1

      625936963d4a0059daff7222a1628198be9b7a4f

      SHA256

      25b2a55bade39fe6d90e0fb06068062a95af522f62d743454ffa4ddd478781d8

      SHA512

      b03301fcafbc905ac7724b5ee878208c4c7dc039b02edcfc00e51742c868ab4cf3f830dbbe52b314ee24f8d87f39b6c9eb3e6c188ddc75a9b52f7dfab85cb2d0

    • memory/484-168-0x0000000000000000-mapping.dmp
    • memory/756-147-0x0000000000000000-mapping.dmp
    • memory/1332-165-0x0000000000000000-mapping.dmp
    • memory/1468-148-0x0000000000000000-mapping.dmp
    • memory/1648-184-0x00007FF984A40000-0x00007FF985501000-memory.dmp
      Filesize

      10.8MB

    • memory/1648-180-0x0000000000000000-mapping.dmp
    • memory/1648-187-0x00007FF984A40000-0x00007FF985501000-memory.dmp
      Filesize

      10.8MB

    • memory/1648-183-0x00007FF984A40000-0x00007FF985501000-memory.dmp
      Filesize

      10.8MB

    • memory/1764-179-0x00007FF984A40000-0x00007FF985501000-memory.dmp
      Filesize

      10.8MB

    • memory/1764-175-0x0000000000000000-mapping.dmp
    • memory/1764-176-0x00007FF984A40000-0x00007FF985501000-memory.dmp
      Filesize

      10.8MB

    • memory/2276-172-0x00007FF982DB0000-0x00007FF983871000-memory.dmp
      Filesize

      10.8MB

    • memory/2276-173-0x00007FF982DB0000-0x00007FF983871000-memory.dmp
      Filesize

      10.8MB

    • memory/2276-169-0x0000000000000000-mapping.dmp
    • memory/3088-162-0x0000000000000000-mapping.dmp
    • memory/3284-132-0x00000235F51B0000-0x00000235F51D2000-memory.dmp
      Filesize

      136KB

    • memory/3284-133-0x00007FF984970000-0x00007FF985431000-memory.dmp
      Filesize

      10.8MB

    • memory/3284-135-0x00007FF984970000-0x00007FF985431000-memory.dmp
      Filesize

      10.8MB

    • memory/3512-140-0x0000029BBEA70000-0x0000029BBEAB4000-memory.dmp
      Filesize

      272KB

    • memory/3512-141-0x0000029BBEEB0000-0x0000029BBEF26000-memory.dmp
      Filesize

      472KB

    • memory/3512-139-0x00007FF984720000-0x00007FF9851E1000-memory.dmp
      Filesize

      10.8MB

    • memory/3512-152-0x00007FF984720000-0x00007FF9851E1000-memory.dmp
      Filesize

      10.8MB

    • memory/3512-137-0x0000000000000000-mapping.dmp
    • memory/3660-185-0x0000000000400000-0x0000000000412000-memory.dmp
      Filesize

      72KB

    • memory/3660-190-0x00000000055D0000-0x0000000005636000-memory.dmp
      Filesize

      408KB

    • memory/3660-188-0x00000000054C0000-0x000000000555C000-memory.dmp
      Filesize

      624KB

    • memory/3660-189-0x0000000005B10000-0x00000000060B4000-memory.dmp
      Filesize

      5.6MB

    • memory/3660-186-0x000000000040DF0E-mapping.dmp
    • memory/3728-157-0x0000000000000000-mapping.dmp
    • memory/3920-166-0x0000000000000000-mapping.dmp
    • memory/4064-134-0x0000000000000000-mapping.dmp
    • memory/4348-159-0x00007FF984720000-0x00007FF9851E1000-memory.dmp
      Filesize

      10.8MB

    • memory/4348-160-0x00007FF984720000-0x00007FF9851E1000-memory.dmp
      Filesize

      10.8MB

    • memory/4348-153-0x0000000000000000-mapping.dmp
    • memory/4416-146-0x00007FF984720000-0x00007FF9851E1000-memory.dmp
      Filesize

      10.8MB

    • memory/4416-145-0x00007FF984720000-0x00007FF9851E1000-memory.dmp
      Filesize

      10.8MB

    • memory/4416-143-0x0000000000000000-mapping.dmp
    • memory/4460-142-0x0000000000000000-mapping.dmp
    • memory/4664-151-0x0000000000000000-mapping.dmp