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Resubmissions

05/09/2024, 06:49

240905-hlqemsvdkm 10

05/09/2024, 06:43

240905-hg74wswbrh 10

Analysis

  • max time kernel
    120s
  • max time network
    123s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05/09/2024, 06:43

General

  • Target

    049ccb277f6c9e2816347b2d51df7ba0N.exe

  • Size

    4.3MB

  • MD5

    049ccb277f6c9e2816347b2d51df7ba0

  • SHA1

    b78da518b845bacca6ecd4595f751a8e6c41c4d6

  • SHA256

    dbd90ffa51b2ec9e716642d651d5740f2a9e376db28b217dbc31ab89b5362409

  • SHA512

    4250cf0ca6815f97265eb7924095c84a8fe41e463bcf172802e72ba5c045f999f23411a994a21d73cab270fe22287e44b33d5314f5b120ab5fad79c53e8a4559

  • SSDEEP

    98304:gC11IMjItWMFAetMtXjxhmZrC11IMjItWMFAetMtXjxhmZY4T:ghSMFjO7mZrhSMFjO7mZY

Malware Config

Signatures

  • Remcos

    Remcos is a closed-source remote control and surveillance software.

  • Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

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

  • Checks computer location settings 2 TTPs 4 IoCs

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

  • Executes dropped EXE 6 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 8 IoCs

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

  • Checks processor information in registry 2 TTPs 3 IoCs

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

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Modifies registry class 2 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 24 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of SetWindowsHookEx 5 IoCs
  • Suspicious use of WriteProcessMemory 46 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\049ccb277f6c9e2816347b2d51df7ba0N.exe
    "C:\Users\Admin\AppData\Local\Temp\049ccb277f6c9e2816347b2d51df7ba0N.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3020
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\049ccb277f6c9e2816347b2d51df7ba0N.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1184
    • C:\Users\Admin\AppData\Local\Temp\049ccb277f6c9e2816347b2d51df7ba0N.exe
      "C:\Users\Admin\AppData\Local\Temp\049ccb277f6c9e2816347b2d51df7ba0N.exe"
      2⤵
        PID:4416
      • C:\Users\Admin\AppData\Local\Temp\049ccb277f6c9e2816347b2d51df7ba0N.exe
        "C:\Users\Admin\AppData\Local\Temp\049ccb277f6c9e2816347b2d51df7ba0N.exe"
        2⤵
        • Checks computer location settings
        • Adds Run key to start application
        • System Location Discovery: System Language Discovery
        • Modifies registry class
        • Suspicious use of WriteProcessMemory
        PID:672
        • C:\Users\Admin\AppData\Local\Temp\._cache_049ccb277f6c9e2816347b2d51df7ba0N.exe
          "C:\Users\Admin\AppData\Local\Temp\._cache_049ccb277f6c9e2816347b2d51df7ba0N.exe"
          3⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious use of SetWindowsHookEx
          PID:1644
        • C:\ProgramData\Synaptics\Synaptics.exe
          "C:\ProgramData\Synaptics\Synaptics.exe" InjUpdate
          3⤵
          • Checks computer location settings
          • Executes dropped EXE
          • Suspicious use of SetThreadContext
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:404
          • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
            "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\ProgramData\Synaptics\Synaptics.exe"
            4⤵
            • Command and Scripting Interpreter: PowerShell
            • System Location Discovery: System Language Discovery
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:3456
          • C:\ProgramData\Synaptics\Synaptics.exe
            "C:\ProgramData\Synaptics\Synaptics.exe"
            4⤵
            • Executes dropped EXE
            PID:1548
          • C:\ProgramData\Synaptics\Synaptics.exe
            "C:\ProgramData\Synaptics\Synaptics.exe"
            4⤵
            • Executes dropped EXE
            PID:3100
          • C:\ProgramData\Synaptics\Synaptics.exe
            "C:\ProgramData\Synaptics\Synaptics.exe"
            4⤵
            • Checks computer location settings
            • Executes dropped EXE
            • System Location Discovery: System Language Discovery
            • Modifies registry class
            • Suspicious use of WriteProcessMemory
            PID:4992
            • C:\Users\Admin\AppData\Local\Temp\._cache_Synaptics.exe
              "C:\Users\Admin\AppData\Local\Temp\._cache_Synaptics.exe"
              5⤵
              • Executes dropped EXE
              • System Location Discovery: System Language Discovery
              PID:1932
    • C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
      "C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" /automation -Embedding
      1⤵
      • Checks processor information in registry
      • Enumerates system info in registry
      • Suspicious behavior: AddClipboardFormatListener
      • Suspicious use of SetWindowsHookEx
      PID:2252

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\ProgramData\Synaptics\Synaptics.exe

      Filesize

      4.3MB

      MD5

      049ccb277f6c9e2816347b2d51df7ba0

      SHA1

      b78da518b845bacca6ecd4595f751a8e6c41c4d6

      SHA256

      dbd90ffa51b2ec9e716642d651d5740f2a9e376db28b217dbc31ab89b5362409

      SHA512

      4250cf0ca6815f97265eb7924095c84a8fe41e463bcf172802e72ba5c045f999f23411a994a21d73cab270fe22287e44b33d5314f5b120ab5fad79c53e8a4559

    • C:\ProgramData\remcos\logs.dat

      Filesize

      144B

      MD5

      5e874202887e447e03c5e8cba47107e5

      SHA1

      9bb6276a74dd5f580a9078ec746d93d1539f1acc

      SHA256

      667c06df0a1ea6d57a545b34292e05b6b4e19455266049b4bdbd9500e167a55a

      SHA512

      c87541a0a26603545efbc8e062b962aafe4689a32eb0461a24e7c3fa82406e9725886aeba838c21f2c01f014c9786f270d06d104cf54c841e77f9ac523e74450

    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log

      Filesize

      2KB

      MD5

      968cb9309758126772781b83adb8a28f

      SHA1

      8da30e71accf186b2ba11da1797cf67f8f78b47c

      SHA256

      92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a

      SHA512

      4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3

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

      Filesize

      18KB

      MD5

      6ffdec7a8f2587c83ed1571e4bf4be74

      SHA1

      f67226d7eab0750d8d0b430d9c6bc9d00d526849

      SHA256

      e976bf080b3606fa6a8cb7089e1cb42412194663842442f568408757ab1d5d00

      SHA512

      7e1619d4d81e1231f9583caaffbc170bc577f34fbee3e9a7597ede4c7753f61e09881db5d719666018785bba47627ae7b5ff153fd1d56ad2f6479938656161e9

    • C:\Users\Admin\AppData\Local\Temp\._cache_049ccb277f6c9e2816347b2d51df7ba0N.exe

      Filesize

      483KB

      MD5

      87705ce8d428c8701a1efa3669cb5135

      SHA1

      3d2022f4950b549bf238bf285aa6ac0dc0c075e3

      SHA256

      543001345cedb9f6962494aafd531be8c1427876b07f339365fd7b20c18fcdce

      SHA512

      374bd7e76c0341ad3cba5b1f4d949b246b584f227c8c6461cc4798781fe6b8e8e6b64556d3c6bf94cac2aa4b06ccf10bc0b373a7594bbf117a50b5113f75c9d4

    • C:\Users\Admin\AppData\Local\Temp\EAtuUn4o.xlsm

      Filesize

      17KB

      MD5

      e566fc53051035e1e6fd0ed1823de0f9

      SHA1

      00bc96c48b98676ecd67e81a6f1d7754e4156044

      SHA256

      8e574b4ae6502230c0829e2319a6c146aebd51b7008bf5bbfb731424d7952c15

      SHA512

      a12f56ff30ea35381c2b8f8af2446cf1daa21ee872e98cad4b863db060acd4c33c5760918c277dadb7a490cb4ca2f925d59c70dc5171e16601a11bc4a6542b04

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_kmzl3n2v.ekg.ps1

      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

    • memory/672-13-0x0000000000400000-0x000000000053B000-memory.dmp

      Filesize

      1.2MB

    • memory/672-140-0x0000000000400000-0x000000000053B000-memory.dmp

      Filesize

      1.2MB

    • memory/672-23-0x0000000000400000-0x000000000053B000-memory.dmp

      Filesize

      1.2MB

    • memory/672-25-0x0000000003680000-0x0000000003681000-memory.dmp

      Filesize

      4KB

    • memory/672-14-0x0000000000400000-0x000000000053B000-memory.dmp

      Filesize

      1.2MB

    • memory/672-15-0x0000000000400000-0x000000000053B000-memory.dmp

      Filesize

      1.2MB

    • memory/1184-143-0x0000000070370000-0x00000000703BC000-memory.dmp

      Filesize

      304KB

    • memory/1184-159-0x0000000007AA0000-0x0000000007AB1000-memory.dmp

      Filesize

      68KB

    • memory/1184-166-0x0000000074760000-0x0000000074F10000-memory.dmp

      Filesize

      7.7MB

    • memory/1184-16-0x0000000002C50000-0x0000000002C86000-memory.dmp

      Filesize

      216KB

    • memory/1184-163-0x0000000007BC0000-0x0000000007BC8000-memory.dmp

      Filesize

      32KB

    • memory/1184-18-0x0000000074760000-0x0000000074F10000-memory.dmp

      Filesize

      7.7MB

    • memory/1184-26-0x0000000002D10000-0x0000000002D20000-memory.dmp

      Filesize

      64KB

    • memory/1184-162-0x0000000007BE0000-0x0000000007BFA000-memory.dmp

      Filesize

      104KB

    • memory/1184-24-0x0000000002D10000-0x0000000002D20000-memory.dmp

      Filesize

      64KB

    • memory/1184-161-0x0000000007AE0000-0x0000000007AF4000-memory.dmp

      Filesize

      80KB

    • memory/1184-27-0x0000000005D00000-0x0000000005D22000-memory.dmp

      Filesize

      136KB

    • memory/1184-22-0x00000000056D0000-0x0000000005CF8000-memory.dmp

      Filesize

      6.2MB

    • memory/1184-29-0x0000000005F40000-0x0000000005FA6000-memory.dmp

      Filesize

      408KB

    • memory/1184-160-0x0000000007AD0000-0x0000000007ADE000-memory.dmp

      Filesize

      56KB

    • memory/1184-28-0x0000000005E60000-0x0000000005EC6000-memory.dmp

      Filesize

      408KB

    • memory/1184-39-0x0000000005FB0000-0x0000000006304000-memory.dmp

      Filesize

      3.3MB

    • memory/1184-40-0x0000000006570000-0x000000000658E000-memory.dmp

      Filesize

      120KB

    • memory/1184-41-0x0000000006620000-0x000000000666C000-memory.dmp

      Filesize

      304KB

    • memory/1184-158-0x0000000007B20000-0x0000000007BB6000-memory.dmp

      Filesize

      600KB

    • memory/1184-157-0x0000000007910000-0x000000000791A000-memory.dmp

      Filesize

      40KB

    • memory/1184-156-0x00000000078A0000-0x00000000078BA000-memory.dmp

      Filesize

      104KB

    • memory/1184-155-0x0000000007EE0000-0x000000000855A000-memory.dmp

      Filesize

      6.5MB

    • memory/1184-142-0x0000000007500000-0x0000000007532000-memory.dmp

      Filesize

      200KB

    • memory/1184-153-0x0000000007740000-0x000000000775E000-memory.dmp

      Filesize

      120KB

    • memory/1184-154-0x0000000007760000-0x0000000007803000-memory.dmp

      Filesize

      652KB

    • memory/2252-241-0x00007FFA8C940000-0x00007FFA8C950000-memory.dmp

      Filesize

      64KB

    • memory/2252-224-0x00007FFA8F030000-0x00007FFA8F040000-memory.dmp

      Filesize

      64KB

    • memory/2252-239-0x00007FFA8C940000-0x00007FFA8C950000-memory.dmp

      Filesize

      64KB

    • memory/2252-223-0x00007FFA8F030000-0x00007FFA8F040000-memory.dmp

      Filesize

      64KB

    • memory/2252-237-0x00007FFA8F030000-0x00007FFA8F040000-memory.dmp

      Filesize

      64KB

    • memory/2252-236-0x00007FFA8F030000-0x00007FFA8F040000-memory.dmp

      Filesize

      64KB

    • memory/2252-225-0x00007FFA8F030000-0x00007FFA8F040000-memory.dmp

      Filesize

      64KB

    • memory/3020-3-0x0000000005140000-0x00000000051D2000-memory.dmp

      Filesize

      584KB

    • memory/3020-7-0x000000007476E000-0x000000007476F000-memory.dmp

      Filesize

      4KB

    • memory/3020-11-0x0000000008DE0000-0x0000000008F5E000-memory.dmp

      Filesize

      1.5MB

    • memory/3020-1-0x0000000000270000-0x00000000006C6000-memory.dmp

      Filesize

      4.3MB

    • memory/3020-5-0x0000000074760000-0x0000000074F10000-memory.dmp

      Filesize

      7.7MB

    • memory/3020-12-0x000000000C000000-0x000000000C09C000-memory.dmp

      Filesize

      624KB

    • memory/3020-2-0x0000000005650000-0x0000000005BF4000-memory.dmp

      Filesize

      5.6MB

    • memory/3020-6-0x0000000006970000-0x0000000006988000-memory.dmp

      Filesize

      96KB

    • memory/3020-9-0x0000000005420000-0x000000000542E000-memory.dmp

      Filesize

      56KB

    • memory/3020-21-0x0000000074760000-0x0000000074F10000-memory.dmp

      Filesize

      7.7MB

    • memory/3020-8-0x0000000074760000-0x0000000074F10000-memory.dmp

      Filesize

      7.7MB

    • memory/3020-10-0x0000000006300000-0x0000000006316000-memory.dmp

      Filesize

      88KB

    • memory/3020-4-0x00000000050C0000-0x00000000050CA000-memory.dmp

      Filesize

      40KB

    • memory/3020-0-0x000000007476E000-0x000000007476F000-memory.dmp

      Filesize

      4KB

    • memory/3456-242-0x0000000007B00000-0x0000000007B14000-memory.dmp

      Filesize

      80KB

    • memory/3456-238-0x00000000077F0000-0x0000000007893000-memory.dmp

      Filesize

      652KB

    • memory/3456-240-0x0000000007AC0000-0x0000000007AD1000-memory.dmp

      Filesize

      68KB

    • memory/3456-226-0x0000000070490000-0x00000000704DC000-memory.dmp

      Filesize

      304KB

    • memory/3456-215-0x0000000006600000-0x000000000664C000-memory.dmp

      Filesize

      304KB

    • memory/3456-213-0x0000000005F30000-0x0000000006284000-memory.dmp

      Filesize

      3.3MB

    • memory/4992-252-0x0000000000400000-0x000000000053B000-memory.dmp

      Filesize

      1.2MB

    • memory/4992-251-0x0000000000400000-0x000000000053B000-memory.dmp

      Filesize

      1.2MB

    • memory/4992-175-0x0000000000400000-0x000000000053B000-memory.dmp

      Filesize

      1.2MB

    • memory/4992-265-0x0000000000400000-0x000000000053B000-memory.dmp

      Filesize

      1.2MB

    • memory/4992-296-0x0000000000400000-0x000000000053B000-memory.dmp

      Filesize

      1.2MB