Analysis

  • max time kernel
    129s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-20240508-en
  • resource tags

    arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
  • submitted
    01-07-2024 04:26

General

  • Target

    315e0272c25fcf22ac2b4023f6e9d02f.exe

  • Size

    2.1MB

  • MD5

    315e0272c25fcf22ac2b4023f6e9d02f

  • SHA1

    c5d91607832ff900ac945ae9d030204e4de747f2

  • SHA256

    e564512cd804822bb78cb0a81de39833e283d1a26fc1c3e81402a75c98eb4e0d

  • SHA512

    b3b791cf698a333cf099aa298cd2838a7d6b8564252d48e8ef4a283efcaaa463ea8a5cfbc0f3bad9812050f22b66947e1fcbd1f53e075747532c568ed0078522

  • SSDEEP

    49152:IBJTPdd11t3B0ks2MOavodMFf6obivfxI4R8Q:ydPdbL3B/4OaQiA1vfxI4R8Q

Malware Config

Signatures

  • Modifies WinLogon for persistence 2 TTPs 6 IoCs
  • Process spawned unexpected child process 18 IoCs

    This typically indicates the parent process was compromised via an exploit or macro.

  • Disables Task Manager via registry modification
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 2 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Adds Run key to start application 2 TTPs 12 IoCs
  • Drops file in System32 directory 2 IoCs
  • Drops file in Program Files directory 4 IoCs
  • Drops file in Windows directory 5 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies registry key 1 TTPs 1 IoCs
  • Runs ping.exe 1 TTPs 1 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 18 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 34 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Users\Admin\AppData\Local\Temp\315e0272c25fcf22ac2b4023f6e9d02f.exe
    "C:\Users\Admin\AppData\Local\Temp\315e0272c25fcf22ac2b4023f6e9d02f.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1360
    • C:\Windows\SysWOW64\WScript.exe
      "C:\Windows\System32\WScript.exe" "C:\PortContainerdhcp\AapWJ8OdgRI5ePB4uiL5KTMmYWkrnvGGYGk6ZysW03KsiwYhlXR.vbe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2828
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c ""C:\PortContainerdhcp\B3U7B7.bat" "
        3⤵
        • Loads dropped DLL
        • Suspicious use of WriteProcessMemory
        PID:2560
        • C:\Windows\SysWOW64\reg.exe
          reg add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableTaskMgr /t REG_DWORD /d 1 /f
          4⤵
          • Modifies registry key
          PID:2580
        • C:\PortContainerdhcp\AgentmonitorSvc.exe
          "C:\PortContainerdhcp/AgentmonitorSvc.exe"
          4⤵
          • Modifies WinLogon for persistence
          • Executes dropped EXE
          • Adds Run key to start application
          • Drops file in Program Files directory
          • Drops file in Windows directory
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:2708
          • C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe
            "C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe" /noconfig /fullpaths @"C:\Users\Admin\AppData\Local\Temp\ekprd3ow\ekprd3ow.cmdline"
            5⤵
            • Drops file in System32 directory
            • Suspicious use of WriteProcessMemory
            PID:1424
            • C:\Windows\Microsoft.NET\Framework64\v4.0.30319\cvtres.exe
              C:\Windows\Microsoft.NET\Framework64\v4.0.30319\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:C:\Users\Admin\AppData\Local\Temp\RES3459.tmp" "c:\Windows\System32\CSCC2F8711E2DF944FE8CFEDAE87AC4ED5.TMP"
              6⤵
                PID:2552
            • C:\Windows\System32\cmd.exe
              "C:\Windows\System32\cmd.exe" /C "C:\Users\Admin\AppData\Local\Temp\6NFvLgHS1g.bat"
              5⤵
              • Suspicious use of WriteProcessMemory
              PID:2252
              • C:\Windows\system32\chcp.com
                chcp 65001
                6⤵
                  PID:1044
                • C:\Windows\system32\PING.EXE
                  ping -n 10 localhost
                  6⤵
                  • Runs ping.exe
                  PID:1400
                • C:\PortContainerdhcp\AgentmonitorSvc.exe
                  "C:\PortContainerdhcp\AgentmonitorSvc.exe"
                  6⤵
                  • Executes dropped EXE
                  • Suspicious behavior: EnumeratesProcesses
                  • Suspicious behavior: GetForegroundWindowSpam
                  • Suspicious use of AdjustPrivilegeToken
                  PID:2404
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "conhostc" /sc MINUTE /mo 13 /tr "'C:\Recovery\50341a82-0d88-11ef-8a7e-5aba25856535\conhost.exe'" /f
        1⤵
        • Process spawned unexpected child process
        • Scheduled Task/Job: Scheduled Task
        PID:2988
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "conhost" /sc ONLOGON /tr "'C:\Recovery\50341a82-0d88-11ef-8a7e-5aba25856535\conhost.exe'" /rl HIGHEST /f
        1⤵
        • Process spawned unexpected child process
        • Scheduled Task/Job: Scheduled Task
        PID:2924
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "conhostc" /sc MINUTE /mo 9 /tr "'C:\Recovery\50341a82-0d88-11ef-8a7e-5aba25856535\conhost.exe'" /rl HIGHEST /f
        1⤵
        • Process spawned unexpected child process
        • Scheduled Task/Job: Scheduled Task
        PID:1428
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "smsss" /sc MINUTE /mo 12 /tr "'C:\Program Files\Windows Photo Viewer\de-DE\smss.exe'" /f
        1⤵
        • Process spawned unexpected child process
        • Scheduled Task/Job: Scheduled Task
        PID:2764
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "smss" /sc ONLOGON /tr "'C:\Program Files\Windows Photo Viewer\de-DE\smss.exe'" /rl HIGHEST /f
        1⤵
        • Process spawned unexpected child process
        • Scheduled Task/Job: Scheduled Task
        PID:2376
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "smsss" /sc MINUTE /mo 9 /tr "'C:\Program Files\Windows Photo Viewer\de-DE\smss.exe'" /rl HIGHEST /f
        1⤵
        • Process spawned unexpected child process
        • Scheduled Task/Job: Scheduled Task
        PID:2380
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 7 /tr "'C:\Windows\Microsoft.NET\Framework\1036\csrss.exe'" /f
        1⤵
        • Process spawned unexpected child process
        • Scheduled Task/Job: Scheduled Task
        PID:1584
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "csrss" /sc ONLOGON /tr "'C:\Windows\Microsoft.NET\Framework\1036\csrss.exe'" /rl HIGHEST /f
        1⤵
        • Process spawned unexpected child process
        • Scheduled Task/Job: Scheduled Task
        PID:1544
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 7 /tr "'C:\Windows\Microsoft.NET\Framework\1036\csrss.exe'" /rl HIGHEST /f
        1⤵
        • Process spawned unexpected child process
        • Scheduled Task/Job: Scheduled Task
        PID:848
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 5 /tr "'C:\Program Files (x86)\Windows Portable Devices\csrss.exe'" /f
        1⤵
        • Process spawned unexpected child process
        • Scheduled Task/Job: Scheduled Task
        PID:1836
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "csrss" /sc ONLOGON /tr "'C:\Program Files (x86)\Windows Portable Devices\csrss.exe'" /rl HIGHEST /f
        1⤵
        • Process spawned unexpected child process
        • Scheduled Task/Job: Scheduled Task
        PID:484
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 6 /tr "'C:\Program Files (x86)\Windows Portable Devices\csrss.exe'" /rl HIGHEST /f
        1⤵
        • Process spawned unexpected child process
        • Scheduled Task/Job: Scheduled Task
        PID:628
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "SystemS" /sc MINUTE /mo 14 /tr "'C:\Windows\DigitalLocker\en-US\System.exe'" /f
        1⤵
        • Process spawned unexpected child process
        • Scheduled Task/Job: Scheduled Task
        PID:1268
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "System" /sc ONLOGON /tr "'C:\Windows\DigitalLocker\en-US\System.exe'" /rl HIGHEST /f
        1⤵
        • Process spawned unexpected child process
        • Scheduled Task/Job: Scheduled Task
        PID:2768
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "SystemS" /sc MINUTE /mo 5 /tr "'C:\Windows\DigitalLocker\en-US\System.exe'" /rl HIGHEST /f
        1⤵
        • Process spawned unexpected child process
        • Scheduled Task/Job: Scheduled Task
        PID:2804
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "AgentmonitorSvcA" /sc MINUTE /mo 14 /tr "'C:\PortContainerdhcp\AgentmonitorSvc.exe'" /f
        1⤵
        • Process spawned unexpected child process
        • Scheduled Task/Job: Scheduled Task
        PID:2816
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "AgentmonitorSvc" /sc ONLOGON /tr "'C:\PortContainerdhcp\AgentmonitorSvc.exe'" /rl HIGHEST /f
        1⤵
        • Process spawned unexpected child process
        • Scheduled Task/Job: Scheduled Task
        PID:2784
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "AgentmonitorSvcA" /sc MINUTE /mo 5 /tr "'C:\PortContainerdhcp\AgentmonitorSvc.exe'" /rl HIGHEST /f
        1⤵
        • Process spawned unexpected child process
        • Scheduled Task/Job: Scheduled Task
        PID:2212

      Network

      MITRE ATT&CK Matrix ATT&CK v13

      Execution

      Scheduled Task/Job

      1
      T1053

      Scheduled Task

      1
      T1053.005

      Persistence

      Boot or Logon Autostart Execution

      2
      T1547

      Registry Run Keys / Startup Folder

      1
      T1547.001

      Winlogon Helper DLL

      1
      T1547.004

      Scheduled Task/Job

      1
      T1053

      Scheduled Task

      1
      T1053.005

      Privilege Escalation

      Boot or Logon Autostart Execution

      2
      T1547

      Registry Run Keys / Startup Folder

      1
      T1547.001

      Winlogon Helper DLL

      1
      T1547.004

      Scheduled Task/Job

      1
      T1053

      Scheduled Task

      1
      T1053.005

      Defense Evasion

      Modify Registry

      3
      T1112

      Credential Access

      Unsecured Credentials

      1
      T1552

      Credentials In Files

      1
      T1552.001

      Discovery

      System Information Discovery

      1
      T1082

      Remote System Discovery

      1
      T1018

      Query Registry

      1
      T1012

      Collection

      Data from Local System

      1
      T1005

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\PortContainerdhcp\AapWJ8OdgRI5ePB4uiL5KTMmYWkrnvGGYGk6ZysW03KsiwYhlXR.vbe
        Filesize

        212B

        MD5

        e45367c7c8d8b48cb95c0435542ced32

        SHA1

        b9943a98ac59cc77ba9a8a1506ccec234decc2d0

        SHA256

        b6d021a7f89875f3f34cc565bf7bc46d6a7e0f00837281e7106738a7cea54d68

        SHA512

        67b5c1904e8592a90166ed27e5ae3211add2d1cac3ac13447b28749d6fb5c0aef7ea2b152a102e89845d926d10dc749ae9812717d77da5732295bd6c4692b2af

      • C:\PortContainerdhcp\AgentmonitorSvc.exe
        Filesize

        1.8MB

        MD5

        b3c40f02fd5de8f3d6879868965241ac

        SHA1

        f8f600aa7dfa91b91e327264e8ca6c5cb28fe877

        SHA256

        60c2806a3fbf26b6de8457f8cc4040a25a52ec2f222de938aaee3d402de010c2

        SHA512

        fbfe0fac2dc53215c72a1265e0fc335c983270ef3ecba7893ecdeda283e03713c31bc607f20593e838aba8dec35ce5dc2ced63f8e72526c47864578454a00fa0

      • C:\PortContainerdhcp\B3U7B7.bat
        Filesize

        220B

        MD5

        d3988f3dce0461b3f5618c74ff9805ce

        SHA1

        4884569eb70550373ca220ba37d9c19c90a795fd

        SHA256

        8345b3c447b9512bce7dd8989a10d8dcd35bce4893a08d472d28d39e5052a3b0

        SHA512

        2a1bcb3bd3183230cfb438782089ee12640b644193efe1eb6b5043745b648097a3d8504dbb2776a960a160d5f2d206688d73645cb615ef2fd1d588dee7542fd6

      • C:\Users\Admin\AppData\Local\Temp\6NFvLgHS1g.bat
        Filesize

        168B

        MD5

        81a3940da2942bf661cbced9cebda8c7

        SHA1

        dd34927ee20bfdf7f823b75f70fa634d031edece

        SHA256

        199bb33363b11ed2b711b742af50780cc81006dc1028885eedef042a467e9f07

        SHA512

        88766172171f98334d2589da3cea86801bfeec2d1c79f05e4c3b29d9fc4a2b33af4bfcbdb98632e32362c9d35f274e1e47bd4175692f69b3d1e1725fd73fbabc

      • C:\Users\Admin\AppData\Local\Temp\RES3459.tmp
        Filesize

        1KB

        MD5

        6a2e3e1e3865d846d0cbf3c18b76f6d5

        SHA1

        2d0ed5eacc4910264ea0bfdec3abfd8d9f50e35d

        SHA256

        9bd4e17a6b7e544833587d9382e828b4eb98d12fc937edd164329557d2cc4184

        SHA512

        ae3ddc09f7fb9926495205aa9075c6b56634a0c1ab3371c8d2d95e5706506d6b12df73eae3718f7f2e91a8e58912d69e8fa62d7ed7e73a53f426ac783e91d0da

      • \??\c:\Users\Admin\AppData\Local\Temp\ekprd3ow\ekprd3ow.0.cs
        Filesize

        392B

        MD5

        59ff65db070a30fe35b7884599de136c

        SHA1

        b6c1dc87a3245822e57e24df674ceab053947bc3

        SHA256

        1d9091fd8659cebafc3675eed8c9502107a594bb3d8b9776e2cbc8fab449d5ec

        SHA512

        7258b4d83aa60f7c4cd6c1870a26a77eaa2385dd724c4d1f5b1f791eafe41cd8706c18514644bae51b29e4bed7312d4a8622693e5f6808bdcc12ec01312d4703

      • \??\c:\Users\Admin\AppData\Local\Temp\ekprd3ow\ekprd3ow.cmdline
        Filesize

        235B

        MD5

        5d28f5793d0108c2497a645a9f9dc174

        SHA1

        b092850c4b65e6a1a6a9ea1319ebe18b11d26fc6

        SHA256

        9ba12c26d5bd9f2642056616731f16d84dd2d95940ad882f78b4978f9e9d1223

        SHA512

        ec2bc9bae8d8b354951a60d86820508859f75e6ab821fb0540baf60a439fd53013953093ef5e79d1e946a0f3c458a2dc0c09db7a0adf4b0d9af7b29148160915

      • \??\c:\Windows\System32\CSCC2F8711E2DF944FE8CFEDAE87AC4ED5.TMP
        Filesize

        1KB

        MD5

        bfb5195b3f3a87a55924d32b25f58821

        SHA1

        20a15b7e5c1f8626a991b0018ecff1e0f9bbdd55

        SHA256

        27fc2b6d7eb6b901e442740584ea89682cf613798415d7f431174412a2c78241

        SHA512

        137ad28b8cc1d5a270c6f98fe129697c1a1d6828f8fbeb72a2f290e0242f547c9aeb97d28c818efe717aa6b7833cece46dd6ddd5d033d9d1f5ce442757d2ab3b

      • memory/2708-13-0x0000000001370000-0x000000000154A000-memory.dmp
        Filesize

        1.9MB

      • memory/2708-21-0x00000000005B0000-0x00000000005BC000-memory.dmp
        Filesize

        48KB

      • memory/2708-19-0x00000000005F0000-0x0000000000608000-memory.dmp
        Filesize

        96KB

      • memory/2708-17-0x00000000005D0000-0x00000000005EC000-memory.dmp
        Filesize

        112KB

      • memory/2708-15-0x0000000000310000-0x000000000031E000-memory.dmp
        Filesize

        56KB