Analysis

  • max time kernel
    149s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    20/05/2026, 17:55

General

  • Target
    JUSTIFICANTE_PAGO_FACTURA_PROFORMA-978778774545223154.exe
  • Size 806KB
  • Sample260520-why49sft2q
  • SHA256 88287f70307150fc1f469bf08e49dee581cdce1900dcf477a08d010e90fef57d
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Family: Guloader,Cloudeye

    A shellcode based downloader first seen in 2020.

  • Badlisted process makes network request 7 IoCs

    Network request originating from process or tool commonly abused by malware.

  • Contacts third-party web service commonly abused for C2 1 TTPs 3 IoCs

    Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.

  • Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Using powershell.exe command.

  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 9 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 22 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\JUSTIFICANTE_PAGO_FACTURA_PROFORMA-978778774545223154.exe
    "C:\Users\Admin\AppData\Local\Temp\JUSTIFICANTE_PAGO_FACTURA_PROFORMA-978778774545223154.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4324
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell.exe -windowstyle 1 "$Wolframet=GC -raw 'C:\Users\Admin\AppData\Local\Witnessers153\raabte\amuletters\Undvrligst130.Gul';$Canangium=$Wolframet.SubString(29282,3);.$Canangium($Wolframet)"
      2⤵
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1144
      • C:\Windows\SysWOW64\msiexec.exe
        "C:\Windows\SysWOW64\msiexec.exe"
        3⤵
        • Badlisted process makes network request
        • Suspicious use of NtSetInformationThreadHideFromDebugger
        • System Location Discovery: System Language Discovery
        PID:3044

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        __PSScriptPolicyTest_g4yn1wkd.sjj.ps1

        • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_g4yn1wkd.sjj.ps1
        • Size 60B
        • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
        • MD5 SHA1 SHA512 TLSH

        transudes.jpg

        • Path C:\Users\Admin\AppData\Local\Witnessers153\raabte\amuletters\Gennemarbejdningerne\Synkrocyklotroner\transudes.jpg
        • Size 74B
        • SHA256 994252c8960cf2a4008c57bb64c39a18937638230293db1ca2cbc7bc63fc8ba5
        • MD5 SHA1 SHA512 TLSH

        Undvrligst130.Gul

        • Path C:\Users\Admin\AppData\Local\Witnessers153\raabte\amuletters\Undvrligst130.Gul
        • Size 54KB
        • SHA256 1c739a595448826a25d50af246010dbb70fd6a78c5af3316509ff2073e5cad2c
        • MD5 SHA1 SHA512 SSDEEP TLSH

        prisniveaus.Kas

        • Path C:\Users\Admin\AppData\Local\Witnessers153\raabte\amuletters\prisniveaus.Kas
        • Size 443KB
        • SHA256 c2ea74b43398f0001131401a191cbfc37b26c295b532b36b321550ee52e3235c
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/1144-53-0x0000000007150000-0x000000000715A000-memory.dmp

        memory/1144-21-0x0000000004C30000-0x0000000004C52000-memory.dmp

        memory/1144-22-0x0000000004DD0000-0x0000000004E36000-memory.dmp

        memory/1144-23-0x00000000055C0000-0x0000000005626000-memory.dmp

        memory/1144-20-0x0000000004E60000-0x0000000005488000-memory.dmp

        memory/1144-29-0x0000000005630000-0x0000000005984000-memory.dmp

        memory/1144-32-0x0000000005BF0000-0x0000000005C0E000-memory.dmp

        memory/1144-33-0x0000000005C80000-0x0000000005CCC000-memory.dmp

        memory/1144-34-0x0000000006BC0000-0x0000000006C56000-memory.dmp

        memory/1144-35-0x00000000060E0000-0x00000000060FA000-memory.dmp

        memory/1144-36-0x0000000006150000-0x0000000006172000-memory.dmp

        memory/1144-37-0x0000000007440000-0x00000000079E4000-memory.dmp

        memory/1144-19-0x0000000004820000-0x0000000004830000-memory.dmp

        memory/1144-39-0x0000000008070000-0x00000000086EA000-memory.dmp

        memory/1144-40-0x000000007F040000-0x000000007F050000-memory.dmp

        memory/1144-41-0x0000000006FE0000-0x0000000007012000-memory.dmp

        memory/1144-42-0x0000000070740000-0x000000007078C000-memory.dmp

        memory/1144-50-0x0000000004820000-0x0000000004830000-memory.dmp

        memory/1144-51-0x0000000006FC0000-0x0000000006FDE000-memory.dmp

        memory/1144-52-0x0000000007030000-0x00000000070D3000-memory.dmp

        memory/1144-55-0x0000000007300000-0x000000000730E000-memory.dmp

        memory/1144-18-0x00000000022E0000-0x0000000002316000-memory.dmp

        memory/1144-54-0x00000000072B0000-0x00000000072C1000-memory.dmp

        memory/1144-56-0x0000000007310000-0x0000000007324000-memory.dmp

        memory/1144-57-0x0000000007350000-0x000000000736A000-memory.dmp

        memory/1144-58-0x0000000007340000-0x0000000007348000-memory.dmp

        memory/1144-59-0x00000000073A0000-0x00000000073CA000-memory.dmp

        memory/1144-60-0x00000000073D0000-0x00000000073F4000-memory.dmp

        memory/1144-61-0x0000000004820000-0x0000000004830000-memory.dmp

        memory/1144-63-0x0000000004820000-0x0000000004830000-memory.dmp

        memory/1144-17-0x0000000004820000-0x0000000004830000-memory.dmp

        memory/1144-65-0x0000000006FB0000-0x0000000006FB2000-memory.dmp

        memory/1144-66-0x00000000086F0000-0x000000000915F000-memory.dmp

        memory/1144-68-0x00000000086F0000-0x000000000915F000-memory.dmp

        memory/1144-67-0x0000000004820000-0x0000000004830000-memory.dmp

        memory/1144-69-0x0000000004820000-0x0000000004830000-memory.dmp

        memory/1144-70-0x000000007F040000-0x000000007F050000-memory.dmp

        memory/1144-71-0x0000000004820000-0x0000000004830000-memory.dmp

        memory/1144-72-0x0000000004820000-0x0000000004830000-memory.dmp

        memory/1144-73-0x0000000004820000-0x0000000004830000-memory.dmp

        memory/1144-74-0x00000000086F0000-0x000000000915F000-memory.dmp

        memory/3044-75-0x0000000001EF0000-0x000000000295F000-memory.dmp

        memory/3044-77-0x0000000001EF0000-0x000000000295F000-memory.dmp

        memory/3044-76-0x0000000000C90000-0x0000000001EE4000-memory.dmp