Analysis

  • max time kernel
    1796s
  • max time network
    1802s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240319-en
  • resource tags

    arch:x64arch:x86image:win11-20240319-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    09-04-2024 18:47

General

  • Target

    Tiktok Share Bot byDenmark.exe

  • Size

    774KB

  • MD5

    4e27884494531416bd41504c7e0ba4ac

  • SHA1

    f806c283c32bb43380c2636e2382a70484ea4b89

  • SHA256

    40278019afe364e36be0e88470cb626a5aba0f78c23b171b4eb30e80db159763

  • SHA512

    e2e5c8be79d1e0ddb70d667e6fd79023e9e34306f9a987d661aa1e9d46c5c2fe574ec6d52f871483455f5be1f722d76b396a9121450d9e7c824d4648bbc445ce

  • SSDEEP

    24576:ML2wAwspzLMrL8vuJB98x1i09m6qfsTtUzF/B:1wAwspzLMrxB98x1i09vJUzJB

Malware Config

Extracted

Family

redline

Botnet

AwsR

C2

siyatermi.duckdns.org:17044

Extracted

Family

quasar

Version

2.1.0.0

Botnet

V/R/B

C2

siyatermi.duckdns.org:1518

Mutex

VNM_MUTEX_mJ6pCWZMe3OMOha5bj

Attributes
  • encryption_key

    g1Bi32PXFGwyBI9DJGTD

  • install_name

    Start Process.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Browser Module

  • subdirectory

    Sys Resources

Signatures

  • Contains code to disable Windows Defender 3 IoCs

    A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.

  • Modifies Windows Defender Real-time Protection settings 3 TTPs 4 IoCs
  • Quasar RAT

    Quasar is an open source Remote Access Tool.

  • Quasar payload 2 IoCs
  • RedLine

    RedLine Stealer is a malware family written in C#, first appearing in early 2020.

  • RedLine payload 2 IoCs
  • SectopRAT

    SectopRAT is a remote access trojan first seen in November 2019.

  • SectopRAT payload 2 IoCs
  • VenomRAT

    VenomRAT is a modified version of QuasarRAT with some added features, such as rootkit and stealer capabilites.

  • Checks BIOS information in registry 2 TTPs 2 IoCs

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

  • Executes dropped EXE 6 IoCs
  • Windows security modification 2 TTPs 2 IoCs
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 IoCs
  • Creates scheduled task(s) 1 TTPs 2 IoCs

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

  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 35 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Tiktok Share Bot byDenmark.exe
    "C:\Users\Admin\AppData\Local\Temp\Tiktok Share Bot byDenmark.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3988
    • C:\ProgramData\vshost\vshost.exe
      C:\ProgramData\\vshost\\vshost.exe ,.
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: AddClipboardFormatListener
      PID:1008
    • C:\Users\Admin\AppData\Local\Temp\libGLESV2.lib
      libGLESV2.lib
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4040
      • C:\Users\Admin\AppData\Roaming\Software Check.exe
        "C:\Users\Admin\AppData\Roaming\Software Check.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        PID:1920
      • C:\Users\Admin\AppData\Roaming\Start Process.exe
        "C:\Users\Admin\AppData\Roaming\Start Process.exe"
        3⤵
        • Modifies Windows Defender Real-time Protection settings
        • Executes dropped EXE
        • Windows security modification
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:1128
        • C:\Windows\SysWOW64\schtasks.exe
          "schtasks" /create /tn "Browser Module" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\Start Process.exe" /rl HIGHEST /f
          4⤵
          • Creates scheduled task(s)
          PID:2624
        • C:\Users\Admin\AppData\Roaming\Sys Resources\Start Process.exe
          "C:\Users\Admin\AppData\Roaming\Sys Resources\Start Process.exe"
          4⤵
          • Executes dropped EXE
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:3184
          • C:\Windows\SysWOW64\schtasks.exe
            "schtasks" /create /tn "Browser Module" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\Sys Resources\Start Process.exe" /rl HIGHEST /f
            5⤵
            • Creates scheduled task(s)
            PID:3320
        • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
          "powershell" Get-MpPreference -verbose
          4⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:5072
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\System32\cmd.exe" /k start /b del /q/f/s %TEMP%\* & exit
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:1148
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /K del /q/f/s C:\Users\Admin\AppData\Local\Temp\*
            5⤵
              PID:3768
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -u -p 1128 -s 2516
            4⤵
            • Program crash
            PID:3756
        • C:\Users\Admin\AppData\Roaming\Tiktok Share Bot byDenmark.exe
          "C:\Users\Admin\AppData\Roaming\Tiktok Share Bot byDenmark.exe"
          3⤵
          • Checks BIOS information in registry
          • Executes dropped EXE
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:4516
      • C:\ProgramData\winst\winst.exe
        C:\ProgramData\\winst\\winst.exe RC0oGof9aiyQiHsCSl8CAEx1yqpy4RwCdmtX3NYSkrgGqLZrf27fRVc6DdJSenwi
        2⤵
        • Executes dropped EXE
        PID:3668
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 476 -p 1128 -ip 1128
      1⤵
        PID:4216
      • C:\Windows\System32\rundll32.exe
        C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
        1⤵
          PID:3512

        Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\ProgramData\vshost\vshost.exe

          Filesize

          238KB

          MD5

          4e6a7ee0e286ab61d36c26bd38996821

          SHA1

          820674b4c75290f8f667764bfb474ca8c1242732

          SHA256

          f67daf4bf2ad0e774bbd53f243e66806397036e5fde694f3856b27bc0463c0a3

          SHA512

          f9d99d960afce980421e654d1d541c1fdb81252615c48eed5c4a5c962cb20123d06dbdf383a37a476aa41e4ffabca30e95a8735739c35f66efbaa1dee8a9ba8a

        • C:\ProgramData\winst\winst.exe

          Filesize

          211KB

          MD5

          59238144771807b1cbc407b250d6b2c3

          SHA1

          6c9f87cca7e857e888cb19ea45cf82d2e2d29695

          SHA256

          8baa5811836c0b4a64810f6a7d6e1d31d7f80350c69643dc9594f58fd0233a7b

          SHA512

          cf2f8b84526ae8a1445a2d8a2b9099b164f80a7b7290f68058583b0b235395d749ad0b726c4e36d5e901c18d6946fd9b0dd76c20016b65dc7a3977f68ee4a220

        • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_1lgp2yyz.js2.ps1

          Filesize

          60B

          MD5

          d17fe0a3f47be24a6453e9ef58c94641

          SHA1

          6ab83620379fc69f80c0242105ddffd7d98d5d9d

          SHA256

          96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

          SHA512

          5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

        • C:\Users\Admin\AppData\Local\Temp\vXHMzK5QCAer.bat

          Filesize

          207B

          MD5

          fd0b806fb3c804c8d1fc78602c5e934c

          SHA1

          76d10dc89b6136a47cb92fcccf46c4f38e1959b9

          SHA256

          7eedd601a1eb0caf558eb1f5807895d05cf03e0e60d698c55a89fbc2b23b8c57

          SHA512

          beab6c8322f8c1aa11449337b6aef9584133bc0b3597381eee5797ba4cb8460fc80a82f3c9932503c93ece981951da1c10117287ccf201a683f310dd15b91edd

        • C:\Users\Admin\AppData\Roaming\Software Check.exe

          Filesize

          95KB

          MD5

          27c2436f6a1c111bef78597d37751138

          SHA1

          f1dabacffc82bbfc7d8db578f0a5653d7fe84bca

          SHA256

          bcac81c69094ea47c3a00cae028ac4c64dd6cbd4fe85e11363e3e35b48c04842

          SHA512

          97e717b9ad5b063e4ff1209684b27d033c5a4a8d9679e3d42d7308fbac1c885a1d3c85d3fed70b7a9adc82203d0e943777d7819456599276c61549186e319636

        • C:\Users\Admin\AppData\Roaming\Start Process.exe

          Filesize

          535KB

          MD5

          4d97786ab8047ad6c08532ed7a017573

          SHA1

          a64d07233d813f9a085722295dca62ca726e291a

          SHA256

          5a72c2a12e0e42313c5d01277d3b26f52810a9753e31883f5f3e7a73a0021870

          SHA512

          9224f6c0af0bb3aa6804e09b36617d2ecf762caf81ec0f2627553788f7045d09878b41ddb63a1d0779973cba52d2f1d59f69bc6c826ad8bb0d807444abab87d2

        • C:\Users\Admin\AppData\Roaming\Tiktok Share Bot byDenmark.exe

          Filesize

          9.8MB

          MD5

          6720bbc01a878d9003076c2b22bfe0cf

          SHA1

          6f2e7acde97d9847400013880d2796428504e580

          SHA256

          90529087bb4c13893ee9e5f3808ace6cdc1bffa2f85aa2f5005b19c2865d143e

          SHA512

          fa41ec8c1baa2e371987402c57dbef31e377897c6154ee290455fbc1e42d90e82c504036165bdc467c25696e4c455fac8bb89e6f7631f961f2282d5d3667bcf9

        • memory/1128-61-0x00000000057F0000-0x0000000005800000-memory.dmp

          Filesize

          64KB

        • memory/1128-53-0x0000000005F00000-0x00000000064A6000-memory.dmp

          Filesize

          5.6MB

        • memory/1128-123-0x0000000071390000-0x0000000071B41000-memory.dmp

          Filesize

          7.7MB

        • memory/1128-48-0x0000000000E30000-0x0000000000EBC000-memory.dmp

          Filesize

          560KB

        • memory/1128-64-0x0000000005A50000-0x0000000005AB6000-memory.dmp

          Filesize

          408KB

        • memory/1128-56-0x00000000058A0000-0x0000000005932000-memory.dmp

          Filesize

          584KB

        • memory/1128-55-0x0000000071390000-0x0000000071B41000-memory.dmp

          Filesize

          7.7MB

        • memory/1920-44-0x0000000000B00000-0x0000000000B1E000-memory.dmp

          Filesize

          120KB

        • memory/1920-51-0x0000000005A60000-0x0000000006078000-memory.dmp

          Filesize

          6.1MB

        • memory/1920-52-0x0000000005460000-0x0000000005472000-memory.dmp

          Filesize

          72KB

        • memory/1920-58-0x0000000005500000-0x000000000554C000-memory.dmp

          Filesize

          304KB

        • memory/1920-54-0x00000000054C0000-0x00000000054FC000-memory.dmp

          Filesize

          240KB

        • memory/1920-124-0x0000000071390000-0x0000000071B41000-memory.dmp

          Filesize

          7.7MB

        • memory/1920-125-0x0000000005430000-0x0000000005440000-memory.dmp

          Filesize

          64KB

        • memory/1920-49-0x0000000071390000-0x0000000071B41000-memory.dmp

          Filesize

          7.7MB

        • memory/1920-62-0x0000000005430000-0x0000000005440000-memory.dmp

          Filesize

          64KB

        • memory/1920-63-0x0000000005750000-0x000000000585A000-memory.dmp

          Filesize

          1.0MB

        • memory/3184-93-0x0000000007270000-0x000000000727A000-memory.dmp

          Filesize

          40KB

        • memory/3184-74-0x00000000058D0000-0x00000000058E0000-memory.dmp

          Filesize

          64KB

        • memory/3184-126-0x0000000071390000-0x0000000071B41000-memory.dmp

          Filesize

          7.7MB

        • memory/3184-127-0x00000000058D0000-0x00000000058E0000-memory.dmp

          Filesize

          64KB

        • memory/3184-73-0x0000000071390000-0x0000000071B41000-memory.dmp

          Filesize

          7.7MB

        • memory/4040-17-0x0000000002290000-0x00000000022A0000-memory.dmp

          Filesize

          64KB

        • memory/4040-50-0x00000000746C0000-0x0000000074C71000-memory.dmp

          Filesize

          5.7MB

        • memory/4040-16-0x00000000746C0000-0x0000000074C71000-memory.dmp

          Filesize

          5.7MB

        • memory/4040-14-0x00000000746C0000-0x0000000074C71000-memory.dmp

          Filesize

          5.7MB

        • memory/4516-68-0x000002DA3C7C0000-0x000002DA3C7D0000-memory.dmp

          Filesize

          64KB

        • memory/4516-66-0x000002DA3C7A0000-0x000002DA3C7B0000-memory.dmp

          Filesize

          64KB

        • memory/4516-65-0x000002DA3C790000-0x000002DA3C7A0000-memory.dmp

          Filesize

          64KB

        • memory/4516-60-0x00007FFADD3C0000-0x00007FFADD5C9000-memory.dmp

          Filesize

          2.0MB

        • memory/4516-59-0x00007FF6DE390000-0x00007FF6DFD31000-memory.dmp

          Filesize

          25.6MB

        • memory/4516-122-0x00007FFADD3C0000-0x00007FFADD5C9000-memory.dmp

          Filesize

          2.0MB

        • memory/4516-121-0x00007FF6DE390000-0x00007FF6DFD31000-memory.dmp

          Filesize

          25.6MB

        • memory/4516-91-0x00007FF6DE390000-0x00007FF6DFD31000-memory.dmp

          Filesize

          25.6MB

        • memory/5072-78-0x00000000057C0000-0x0000000005DEA000-memory.dmp

          Filesize

          6.2MB

        • memory/5072-95-0x0000000006AD0000-0x0000000006B04000-memory.dmp

          Filesize

          208KB

        • memory/5072-96-0x00000000746C0000-0x000000007470C000-memory.dmp

          Filesize

          304KB

        • memory/5072-105-0x00000000074C0000-0x00000000074DE000-memory.dmp

          Filesize

          120KB

        • memory/5072-106-0x00000000074F0000-0x0000000007594000-memory.dmp

          Filesize

          656KB

        • memory/5072-107-0x0000000007E60000-0x00000000084DA000-memory.dmp

          Filesize

          6.5MB

        • memory/5072-108-0x0000000007820000-0x000000000783A000-memory.dmp

          Filesize

          104KB

        • memory/5072-109-0x00000000078A0000-0x00000000078AA000-memory.dmp

          Filesize

          40KB

        • memory/5072-110-0x0000000007AB0000-0x0000000007B46000-memory.dmp

          Filesize

          600KB

        • memory/5072-111-0x0000000007A30000-0x0000000007A41000-memory.dmp

          Filesize

          68KB

        • memory/5072-112-0x0000000007A60000-0x0000000007A6E000-memory.dmp

          Filesize

          56KB

        • memory/5072-113-0x0000000007A70000-0x0000000007A85000-memory.dmp

          Filesize

          84KB

        • memory/5072-114-0x0000000007B70000-0x0000000007B8A000-memory.dmp

          Filesize

          104KB

        • memory/5072-115-0x0000000007B60000-0x0000000007B68000-memory.dmp

          Filesize

          32KB

        • memory/5072-118-0x0000000071390000-0x0000000071B41000-memory.dmp

          Filesize

          7.7MB

        • memory/5072-94-0x0000000002CE0000-0x0000000002CF0000-memory.dmp

          Filesize

          64KB

        • memory/5072-90-0x00000000064F0000-0x000000000650E000-memory.dmp

          Filesize

          120KB

        • memory/5072-89-0x00000000060A0000-0x00000000063F7000-memory.dmp

          Filesize

          3.3MB

        • memory/5072-88-0x0000000005F60000-0x0000000005FC6000-memory.dmp

          Filesize

          408KB

        • memory/5072-79-0x0000000005730000-0x0000000005752000-memory.dmp

          Filesize

          136KB

        • memory/5072-77-0x0000000002CE0000-0x0000000002CF0000-memory.dmp

          Filesize

          64KB

        • memory/5072-76-0x0000000071390000-0x0000000071B41000-memory.dmp

          Filesize

          7.7MB

        • memory/5072-75-0x0000000002CF0000-0x0000000002D26000-memory.dmp

          Filesize

          216KB