Overview

overview

10

Static

static

10

virusshare...7b.exe

windows10-2004-x64

10

virusshare...7b.exe

windows11-21h2-x64

10

Resubmissions

16/04/2025, 16:46

250416-vaaahaxnt9 10

16/04/2025, 13:10

250416-qerccswjt5 10

16/04/2025, 12:57

250416-p6x4jsvrx2 10

16/04/2025, 12:51

250416-p3kn2svrv5 10

Analysis

  • max time kernel
    118s
  • max time network
    118s
  • platform
    windows11-21h2_x64
  • resource
    win11-20250410-en
  • resource tags

    arch:x64arch:x86image:win11-20250410-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    16/04/2025, 16:46

Sharing

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Report Analysis Logs

General

  • Target

    virusshare/3/VirusShare_4aa5734fe9c86184f931f4ddaf2d4d7b.exe

  • Size

    64KB

  • MD5

    4aa5734fe9c86184f931f4ddaf2d4d7b

  • SHA1

    a066ccad76f3c63d053cd68ac8692d4f4acf82ac

  • SHA256

    2e18ad3e470b97415beb2cdb8e3ef7510bad21f0a5add020a7f9343dd959eeaa

  • SHA512

    7355ffd3fc59af49af1d57f5327c7442a12c8e5ddc6ec9e176cc27fd4986cd6182f5f6ce91f892c07029efcac37f90d4dd077b6bb226b54c40621b94987a044c

  • SSDEEP

    384:rdP9JIA7uJ1wK2xBpHbVbl+NGYD90pSCfZziEKffhaekBfdReVwoGHdRsArr2rOR:R9JIqNl/SSrrpBfiIdRsorZucnjtsq

Score
10/10
guloaderdiscoverydownloaderpersistence

Malware Config

Extracted

Family

guloader

C2

https://eficadgdl.com/well/Omitted-Credentials_encrypted_6A17930.bin

xor.base64

Signatures

  • Guloader family
    guloader
  • Guloader,Cloudeye

    A shellcode based downloader first seen in 2020.

    downloaderguloader
  • Executes dropped EXE 16 IoCs
  • Adds Run key to start application 2 TTPs 17 IoCs
    persistence
  • Suspicious use of NtSetInformationThreadHideFromDebugger 34 IoCs
  • Suspicious use of SetThreadContext 17 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 34 IoCs

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

    discovery
  • Suspicious behavior: MapViewOfSection 22 IoCs
  • Suspicious use of SetWindowsHookEx 17 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\virusshare\3\VirusShare_4aa5734fe9c86184f931f4ddaf2d4d7b.exe
    "C:\Users\Admin\AppData\Local\Temp\virusshare\3\VirusShare_4aa5734fe9c86184f931f4ddaf2d4d7b.exe"
    1⤵
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3184
    • C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
      "C:\Users\Admin\AppData\Local\Temp\virusshare\3\VirusShare_4aa5734fe9c86184f931f4ddaf2d4d7b.exe"
      2⤵
        PID:3424
      • C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
        "C:\Users\Admin\AppData\Local\Temp\virusshare\3\VirusShare_4aa5734fe9c86184f931f4ddaf2d4d7b.exe"
        2⤵
        • Adds Run key to start application
        • Suspicious use of NtSetInformationThreadHideFromDebugger
        • System Location Discovery: System Language Discovery
        PID:3136
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c C:\Users\Admin\TROFFE\erythroph.exe
      1⤵
      • Suspicious use of WriteProcessMemory
      PID:4892
      • C:\Users\Admin\TROFFE\erythroph.exe
        C:\Users\Admin\TROFFE\erythroph.exe
        2⤵
        • Executes dropped EXE
        • Suspicious use of NtSetInformationThreadHideFromDebugger
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:2008
        • C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
          C:\Users\Admin\TROFFE\erythroph.exe
          3⤵
          • Adds Run key to start application
          • Suspicious use of NtSetInformationThreadHideFromDebugger
          • System Location Discovery: System Language Discovery
          PID:5176
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c C:\Users\Admin\TROFFE\erythroph.exe
      1⤵
      • Suspicious use of WriteProcessMemory
      PID:3004
      • C:\Users\Admin\TROFFE\erythroph.exe
        C:\Users\Admin\TROFFE\erythroph.exe
        2⤵
        • Executes dropped EXE
        • Suspicious use of NtSetInformationThreadHideFromDebugger
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:4996
        • C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
          C:\Users\Admin\TROFFE\erythroph.exe
          3⤵
          • Adds Run key to start application
          • Suspicious use of NtSetInformationThreadHideFromDebugger
          • System Location Discovery: System Language Discovery
          PID:5032
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c C:\Users\Admin\TROFFE\erythroph.exe
      1⤵
      • Suspicious use of WriteProcessMemory
      PID:4376
      • C:\Users\Admin\TROFFE\erythroph.exe
        C:\Users\Admin\TROFFE\erythroph.exe
        2⤵
        • Executes dropped EXE
        • Suspicious use of NtSetInformationThreadHideFromDebugger
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:3344
        • C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
          C:\Users\Admin\TROFFE\erythroph.exe
          3⤵
          • Adds Run key to start application
          • Suspicious use of NtSetInformationThreadHideFromDebugger
          • System Location Discovery: System Language Discovery
          PID:6052
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c C:\Users\Admin\TROFFE\erythroph.exe
      1⤵
      • Suspicious use of WriteProcessMemory
      PID:5644
      • C:\Users\Admin\TROFFE\erythroph.exe
        C:\Users\Admin\TROFFE\erythroph.exe
        2⤵
        • Executes dropped EXE
        • Suspicious use of NtSetInformationThreadHideFromDebugger
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:5124
        • C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
          C:\Users\Admin\TROFFE\erythroph.exe
          3⤵
          • Adds Run key to start application
          • Suspicious use of NtSetInformationThreadHideFromDebugger
          • System Location Discovery: System Language Discovery
          PID:2080
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c C:\Users\Admin\TROFFE\erythroph.exe
      1⤵
      • Suspicious use of WriteProcessMemory
      PID:4732
      • C:\Users\Admin\TROFFE\erythroph.exe
        C:\Users\Admin\TROFFE\erythroph.exe
        2⤵
        • Executes dropped EXE
        • Suspicious use of NtSetInformationThreadHideFromDebugger
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:4564
        • C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
          C:\Users\Admin\TROFFE\erythroph.exe
          3⤵
          • Adds Run key to start application
          • Suspicious use of NtSetInformationThreadHideFromDebugger
          • System Location Discovery: System Language Discovery
          PID:912
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c C:\Users\Admin\TROFFE\erythroph.exe
      1⤵
      • Suspicious use of WriteProcessMemory
      PID:5556
      • C:\Users\Admin\TROFFE\erythroph.exe
        C:\Users\Admin\TROFFE\erythroph.exe
        2⤵
        • Executes dropped EXE
        • Suspicious use of NtSetInformationThreadHideFromDebugger
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:5184
        • C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
          C:\Users\Admin\TROFFE\erythroph.exe
          3⤵
          • Adds Run key to start application
          • Suspicious use of NtSetInformationThreadHideFromDebugger
          • System Location Discovery: System Language Discovery
          PID:2512
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c C:\Users\Admin\TROFFE\erythroph.exe
      1⤵
      • Suspicious use of WriteProcessMemory
      PID:4000
      • C:\Users\Admin\TROFFE\erythroph.exe
        C:\Users\Admin\TROFFE\erythroph.exe
        2⤵
        • Executes dropped EXE
        • Suspicious use of NtSetInformationThreadHideFromDebugger
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:5848
        • C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
          C:\Users\Admin\TROFFE\erythroph.exe
          3⤵
          • Adds Run key to start application
          • Suspicious use of NtSetInformationThreadHideFromDebugger
          • System Location Discovery: System Language Discovery
          PID:3144
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c C:\Users\Admin\TROFFE\erythroph.exe
      1⤵
      • Suspicious use of WriteProcessMemory
      PID:3844
      • C:\Users\Admin\TROFFE\erythroph.exe
        C:\Users\Admin\TROFFE\erythroph.exe
        2⤵
        • Executes dropped EXE
        • Suspicious use of NtSetInformationThreadHideFromDebugger
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:4844
        • C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
          C:\Users\Admin\TROFFE\erythroph.exe
          3⤵
            PID:1880
          • C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
            C:\Users\Admin\TROFFE\erythroph.exe
            3⤵
            • Adds Run key to start application
            • Suspicious use of NtSetInformationThreadHideFromDebugger
            • System Location Discovery: System Language Discovery
            PID:2032
      • C:\Windows\system32\cmd.exe
        C:\Windows\system32\cmd.exe /c C:\Users\Admin\TROFFE\erythroph.exe
        1⤵
          PID:5104
          • C:\Users\Admin\TROFFE\erythroph.exe
            C:\Users\Admin\TROFFE\erythroph.exe
            2⤵
            • Executes dropped EXE
            • Suspicious use of NtSetInformationThreadHideFromDebugger
            • Suspicious use of SetThreadContext
            • System Location Discovery: System Language Discovery
            • Suspicious behavior: MapViewOfSection
            • Suspicious use of SetWindowsHookEx
            PID:5580
            • C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
              C:\Users\Admin\TROFFE\erythroph.exe
              3⤵
              • Adds Run key to start application
              • Suspicious use of NtSetInformationThreadHideFromDebugger
              • System Location Discovery: System Language Discovery
              PID:5776
        • C:\Windows\system32\cmd.exe
          C:\Windows\system32\cmd.exe /c C:\Users\Admin\TROFFE\erythroph.exe
          1⤵
            PID:5772
            • C:\Users\Admin\TROFFE\erythroph.exe
              C:\Users\Admin\TROFFE\erythroph.exe
              2⤵
              • Executes dropped EXE
              • Suspicious use of NtSetInformationThreadHideFromDebugger
              • Suspicious use of SetThreadContext
              • System Location Discovery: System Language Discovery
              • Suspicious behavior: MapViewOfSection
              • Suspicious use of SetWindowsHookEx
              PID:5172
              • C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
                C:\Users\Admin\TROFFE\erythroph.exe
                3⤵
                • Adds Run key to start application
                • Suspicious use of NtSetInformationThreadHideFromDebugger
                • System Location Discovery: System Language Discovery
                PID:1892
          • C:\Windows\system32\cmd.exe
            C:\Windows\system32\cmd.exe /c C:\Users\Admin\TROFFE\erythroph.exe
            1⤵
              PID:1392
              • C:\Users\Admin\TROFFE\erythroph.exe
                C:\Users\Admin\TROFFE\erythroph.exe
                2⤵
                • Executes dropped EXE
                • Suspicious use of NtSetInformationThreadHideFromDebugger
                • Suspicious use of SetThreadContext
                • System Location Discovery: System Language Discovery
                • Suspicious behavior: MapViewOfSection
                • Suspicious use of SetWindowsHookEx
                PID:4972
                • C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
                  C:\Users\Admin\TROFFE\erythroph.exe
                  3⤵
                  • Adds Run key to start application
                  • Suspicious use of NtSetInformationThreadHideFromDebugger
                  • System Location Discovery: System Language Discovery
                  PID:1080
            • C:\Windows\system32\cmd.exe
              C:\Windows\system32\cmd.exe /c C:\Users\Admin\TROFFE\erythroph.exe
              1⤵
                PID:5024
                • C:\Users\Admin\TROFFE\erythroph.exe
                  C:\Users\Admin\TROFFE\erythroph.exe
                  2⤵
                  • Executes dropped EXE
                  • Suspicious use of NtSetInformationThreadHideFromDebugger
                  • Suspicious use of SetThreadContext
                  • System Location Discovery: System Language Discovery
                  • Suspicious behavior: MapViewOfSection
                  • Suspicious use of SetWindowsHookEx
                  PID:4256
                  • C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
                    C:\Users\Admin\TROFFE\erythroph.exe
                    3⤵
                      PID:424
                    • C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
                      C:\Users\Admin\TROFFE\erythroph.exe
                      3⤵
                        PID:1664
                      • C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
                        C:\Users\Admin\TROFFE\erythroph.exe
                        3⤵
                        • Adds Run key to start application
                        • Suspicious use of NtSetInformationThreadHideFromDebugger
                        • System Location Discovery: System Language Discovery
                        PID:2736
                  • C:\Windows\system32\cmd.exe
                    C:\Windows\system32\cmd.exe /c C:\Users\Admin\TROFFE\erythroph.exe
                    1⤵
                      PID:4296
                      • C:\Users\Admin\TROFFE\erythroph.exe
                        C:\Users\Admin\TROFFE\erythroph.exe
                        2⤵
                        • Executes dropped EXE
                        • Suspicious use of NtSetInformationThreadHideFromDebugger
                        • Suspicious use of SetThreadContext
                        • System Location Discovery: System Language Discovery
                        • Suspicious behavior: MapViewOfSection
                        • Suspicious use of SetWindowsHookEx
                        PID:3376
                        • C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
                          C:\Users\Admin\TROFFE\erythroph.exe
                          3⤵
                          • Adds Run key to start application
                          • Suspicious use of NtSetInformationThreadHideFromDebugger
                          • System Location Discovery: System Language Discovery
                          PID:4896
                    • C:\Windows\system32\cmd.exe
                      C:\Windows\system32\cmd.exe /c C:\Users\Admin\TROFFE\erythroph.exe
                      1⤵
                        PID:1172
                        • C:\Users\Admin\TROFFE\erythroph.exe
                          C:\Users\Admin\TROFFE\erythroph.exe
                          2⤵
                          • Executes dropped EXE
                          • Suspicious use of NtSetInformationThreadHideFromDebugger
                          • Suspicious use of SetThreadContext
                          • System Location Discovery: System Language Discovery
                          • Suspicious behavior: MapViewOfSection
                          • Suspicious use of SetWindowsHookEx
                          PID:5688
                          • C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
                            C:\Users\Admin\TROFFE\erythroph.exe
                            3⤵
                            • Adds Run key to start application
                            • Suspicious use of NtSetInformationThreadHideFromDebugger
                            • System Location Discovery: System Language Discovery
                            PID:5044
                      • C:\Windows\system32\cmd.exe
                        C:\Windows\system32\cmd.exe /c C:\Users\Admin\TROFFE\erythroph.exe
                        1⤵
                          PID:4072
                          • C:\Users\Admin\TROFFE\erythroph.exe
                            C:\Users\Admin\TROFFE\erythroph.exe
                            2⤵
                            • Executes dropped EXE
                            • Suspicious use of NtSetInformationThreadHideFromDebugger
                            • Suspicious use of SetThreadContext
                            • System Location Discovery: System Language Discovery
                            • Suspicious behavior: MapViewOfSection
                            • Suspicious use of SetWindowsHookEx
                            PID:3512
                            • C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
                              C:\Users\Admin\TROFFE\erythroph.exe
                              3⤵
                                PID:768
                              • C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
                                C:\Users\Admin\TROFFE\erythroph.exe
                                3⤵
                                • Adds Run key to start application
                                • Suspicious use of NtSetInformationThreadHideFromDebugger
                                • System Location Discovery: System Language Discovery
                                PID:3580
                          • C:\Windows\system32\cmd.exe
                            C:\Windows\system32\cmd.exe /c C:\Users\Admin\TROFFE\erythroph.exe
                            1⤵
                              PID:1488
                              • C:\Users\Admin\TROFFE\erythroph.exe
                                C:\Users\Admin\TROFFE\erythroph.exe
                                2⤵
                                • Executes dropped EXE
                                • Suspicious use of NtSetInformationThreadHideFromDebugger
                                • Suspicious use of SetThreadContext
                                • System Location Discovery: System Language Discovery
                                • Suspicious behavior: MapViewOfSection
                                • Suspicious use of SetWindowsHookEx
                                PID:2692
                                • C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
                                  C:\Users\Admin\TROFFE\erythroph.exe
                                  3⤵
                                  • Adds Run key to start application
                                  • Suspicious use of NtSetInformationThreadHideFromDebugger
                                  • System Location Discovery: System Language Discovery
                                  PID:6016

                            Network

                            MITRE ATT&CK Enterprise v16

                            Replay Monitor

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                            Downloads

                            • C:\Users\Admin\TROFFE\erythroph.exe
                              Filesize

                              64KB

                              MD5

                              4aa5734fe9c86184f931f4ddaf2d4d7b

                              SHA1

                              a066ccad76f3c63d053cd68ac8692d4f4acf82ac

                              SHA256

                              2e18ad3e470b97415beb2cdb8e3ef7510bad21f0a5add020a7f9343dd959eeaa

                              SHA512

                              7355ffd3fc59af49af1d57f5327c7442a12c8e5ddc6ec9e176cc27fd4986cd6182f5f6ce91f892c07029efcac37f90d4dd077b6bb226b54c40621b94987a044c

                              Download Submit

                            • memory/2008-13-0x00007FF8B05E0000-0x00007FF8B07E9000-memory.dmp

                              Filesize

                              2.0MB

                              Download

                            • memory/2032-63-0x0000000074EA0000-0x000000007512A000-memory.dmp

                              Filesize

                              2.5MB

                              Download

                            • memory/3136-5-0x00007FF8B05E0000-0x00007FF8B07E9000-memory.dmp

                              Filesize

                              2.0MB

                              Download

                            • memory/3136-7-0x00007FF8B05E0000-0x00007FF8B07E9000-memory.dmp

                              Filesize

                              2.0MB

                              Download

                            • memory/3136-34-0x00007FF8B05E0000-0x00007FF8B07E9000-memory.dmp

                              Filesize

                              2.0MB

                              Download

                            • memory/3184-2-0x0000000002300000-0x0000000002308000-memory.dmp

                              Filesize

                              32KB

                              Download

                            • memory/3184-4-0x00007FF8B05E0000-0x00007FF8B07E9000-memory.dmp

                              Filesize

                              2.0MB

                              Download

                            • memory/3184-24-0x0000000002300000-0x0000000002308000-memory.dmp

                              Filesize

                              32KB

                              Download

                            • memory/3184-3-0x00007FF8B05E1000-0x00007FF8B070A000-memory.dmp

                              Filesize

                              1.2MB

                              Download

                            • memory/3184-65-0x0000000002300000-0x0000000002308000-memory.dmp

                              Filesize

                              32KB

                              Download

                            • memory/5176-14-0x00007FF8B05E0000-0x00007FF8B07E9000-memory.dmp

                              Filesize

                              2.0MB

                              Download

                            • memory/5176-53-0x00007FF8B05E0000-0x00007FF8B07E9000-memory.dmp

                              Filesize

                              2.0MB

                              Download

                            • memory/5776-64-0x0000000074EA0000-0x000000007512A000-memory.dmp

                              Filesize

                              2.5MB

                              Download