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
    52s
  • max time network
    48s
  • 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, 12:51

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 24 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:2764
    • 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:5220
  • C:\Windows\system32\cmd.exe
    C:\Windows\system32\cmd.exe /c C:\Users\Admin\TROFFE\erythroph.exe
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2392
    • 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:5168
      • 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:4524
  • C:\Windows\system32\cmd.exe
    C:\Windows\system32\cmd.exe /c C:\Users\Admin\TROFFE\erythroph.exe
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2148
    • 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:4876
      • C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
        C:\Users\Admin\TROFFE\erythroph.exe
        3⤵
          PID:4956
        • 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:4964
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c C:\Users\Admin\TROFFE\erythroph.exe
      1⤵
      • Suspicious use of WriteProcessMemory
      PID:2804
      • 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:1756
        • 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:5088
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c C:\Users\Admin\TROFFE\erythroph.exe
      1⤵
      • Suspicious use of WriteProcessMemory
      PID:4412
      • 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:2388
        • 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:1160
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c C:\Users\Admin\TROFFE\erythroph.exe
      1⤵
      • Suspicious use of WriteProcessMemory
      PID:5948
      • 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:2600
        • C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
          C:\Users\Admin\TROFFE\erythroph.exe
          3⤵
            PID:5472
          • 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:4124
      • C:\Windows\system32\cmd.exe
        C:\Windows\system32\cmd.exe /c C:\Users\Admin\TROFFE\erythroph.exe
        1⤵
        • Suspicious use of WriteProcessMemory
        PID:4268
        • 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:2128
          • 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:904
      • C:\Windows\system32\cmd.exe
        C:\Windows\system32\cmd.exe /c C:\Users\Admin\TROFFE\erythroph.exe
        1⤵
        • Suspicious use of WriteProcessMemory
        PID:5640
        • 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:3348
          • 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:4540
      • C:\Windows\system32\cmd.exe
        C:\Windows\system32\cmd.exe /c C:\Users\Admin\TROFFE\erythroph.exe
        1⤵
        • Suspicious use of WriteProcessMemory
        PID:3400
        • 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:1836
          • 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:2432
      • C:\Windows\system32\cmd.exe
        C:\Windows\system32\cmd.exe /c C:\Users\Admin\TROFFE\erythroph.exe
        1⤵
          PID:4980
          • 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:5716
            • 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:2340
        • C:\Windows\system32\cmd.exe
          C:\Windows\system32\cmd.exe /c C:\Users\Admin\TROFFE\erythroph.exe
          1⤵
            PID:6048
            • 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:1408
              • 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:5988
          • C:\Windows\system32\cmd.exe
            C:\Windows\system32\cmd.exe /c C:\Users\Admin\TROFFE\erythroph.exe
            1⤵
              PID:5824
              • 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:5804
                • 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:1988
            • C:\Windows\system32\cmd.exe
              C:\Windows\system32\cmd.exe /c C:\Users\Admin\TROFFE\erythroph.exe
              1⤵
                PID:344
                • 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:5916
                  • 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:400
              • C:\Windows\system32\cmd.exe
                C:\Windows\system32\cmd.exe /c C:\Users\Admin\TROFFE\erythroph.exe
                1⤵
                  PID:4068
                  • 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:5256
                    • C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
                      C:\Users\Admin\TROFFE\erythroph.exe
                      3⤵
                        PID:112
                      • 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:3056
                  • C:\Windows\system32\cmd.exe
                    C:\Windows\system32\cmd.exe /c C:\Users\Admin\TROFFE\erythroph.exe
                    1⤵
                      PID:5300
                      • 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:1920
                        • C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
                          C:\Users\Admin\TROFFE\erythroph.exe
                          3⤵
                            PID:2204
                          • 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:2560
                      • C:\Windows\system32\cmd.exe
                        C:\Windows\system32\cmd.exe /c C:\Users\Admin\TROFFE\erythroph.exe
                        1⤵
                          PID:5412
                          • 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:1568
                            • 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:3740
                        • C:\Windows\system32\cmd.exe
                          C:\Windows\system32\cmd.exe /c C:\Users\Admin\TROFFE\erythroph.exe
                          1⤵
                            PID:1180
                            • 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:1164
                              • C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
                                C:\Users\Admin\TROFFE\erythroph.exe
                                3⤵
                                  PID:3116
                                • C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
                                  C:\Users\Admin\TROFFE\erythroph.exe
                                  3⤵
                                    PID:4312
                                  • C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
                                    C:\Users\Admin\TROFFE\erythroph.exe
                                    3⤵
                                      PID:4792
                                    • 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:4684

                                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/2340-65-0x0000000074F50000-0x00000000751DA000-memory.dmp

                                  Filesize

                                  2.5MB

                                  Download

                                • memory/2432-64-0x0000000074F50000-0x00000000751DA000-memory.dmp

                                  Filesize

                                  2.5MB

                                  Download

                                • memory/2764-3-0x00007FFE43301000-0x00007FFE4342A000-memory.dmp

                                  Filesize

                                  1.2MB

                                  Download

                                • memory/2764-4-0x00007FFE43300000-0x00007FFE43509000-memory.dmp

                                  Filesize

                                  2.0MB

                                  Download

                                • memory/2764-2-0x0000000002300000-0x0000000002308000-memory.dmp

                                  Filesize

                                  32KB

                                  Download

                                • memory/2764-21-0x0000000002300000-0x0000000002308000-memory.dmp

                                  Filesize

                                  32KB

                                  Download

                                • memory/4524-14-0x00007FFE43300000-0x00007FFE43509000-memory.dmp

                                  Filesize

                                  2.0MB

                                  Download

                                • memory/4524-47-0x00007FFE43300000-0x00007FFE43509000-memory.dmp

                                  Filesize

                                  2.0MB

                                  Download

                                • memory/4540-63-0x0000000074F50000-0x00000000751DA000-memory.dmp

                                  Filesize

                                  2.5MB

                                  Download

                                • memory/5168-13-0x00007FFE43300000-0x00007FFE43509000-memory.dmp

                                  Filesize

                                  2.0MB

                                  Download

                                • memory/5220-5-0x00007FFE43300000-0x00007FFE43509000-memory.dmp

                                  Filesize

                                  2.0MB

                                  Download

                                • memory/5220-31-0x00007FFE43300000-0x00007FFE43509000-memory.dmp

                                  Filesize

                                  2.0MB

                                  Download

                                • memory/5220-7-0x00007FFE43300000-0x00007FFE43509000-memory.dmp

                                  Filesize

                                  2.0MB

                                  Download

                                • memory/5988-66-0x0000000074F50000-0x00000000751DA000-memory.dmp

                                  Filesize

                                  2.5MB

                                  Download