Overview

overview

10

Static

static

3

VirusShare...7b.exe

windows10-2004-x64

10

VirusShare...7b.exe

windows11-21h2-x64

10

Analysis

  • max time kernel
    114s
  • max time network
    112s
  • 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, 14:25

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Report Analysis Logs

General

  • Target

    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 25 IoCs
  • Suspicious use of SetWindowsHookEx 17 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\VirusShare_4aa5734fe9c86184f931f4ddaf2d4d7b.exe
    "C:\Users\Admin\AppData\Local\Temp\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:1212
    • C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
      "C:\Users\Admin\AppData\Local\Temp\VirusShare_4aa5734fe9c86184f931f4ddaf2d4d7b.exe"
      2⤵
        PID:3312
      • C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
        "C:\Users\Admin\AppData\Local\Temp\VirusShare_4aa5734fe9c86184f931f4ddaf2d4d7b.exe"
        2⤵
          PID:1204
        • C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
          "C:\Users\Admin\AppData\Local\Temp\VirusShare_4aa5734fe9c86184f931f4ddaf2d4d7b.exe"
          2⤵
          • Adds Run key to start application
          • Suspicious use of NtSetInformationThreadHideFromDebugger
          • System Location Discovery: System Language Discovery
          PID:4972
      • C:\Windows\system32\cmd.exe
        C:\Windows\system32\cmd.exe /c C:\Users\Admin\TROFFE\erythroph.exe
        1⤵
        • Suspicious use of WriteProcessMemory
        PID:5924
        • 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:6124
          • 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:5580
      • C:\Windows\system32\cmd.exe
        C:\Windows\system32\cmd.exe /c C:\Users\Admin\TROFFE\erythroph.exe
        1⤵
        • Suspicious use of WriteProcessMemory
        PID:5456
        • 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:5732
          • 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:2624
      • C:\Windows\system32\cmd.exe
        C:\Windows\system32\cmd.exe /c C:\Users\Admin\TROFFE\erythroph.exe
        1⤵
        • Suspicious use of WriteProcessMemory
        PID:4900
        • 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:5032
          • 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:5024
      • C:\Windows\system32\cmd.exe
        C:\Windows\system32\cmd.exe /c C:\Users\Admin\TROFFE\erythroph.exe
        1⤵
        • Suspicious use of WriteProcessMemory
        PID:5064
        • 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:5856
          • 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:4272
      • C:\Windows\system32\cmd.exe
        C:\Windows\system32\cmd.exe /c C:\Users\Admin\TROFFE\erythroph.exe
        1⤵
        • Suspicious use of WriteProcessMemory
        PID:4364
        • 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:6068
          • 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:2368
      • C:\Windows\system32\cmd.exe
        C:\Windows\system32\cmd.exe /c C:\Users\Admin\TROFFE\erythroph.exe
        1⤵
        • Suspicious use of WriteProcessMemory
        PID:2824
        • 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:4312
          • 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:4436
      • C:\Windows\system32\cmd.exe
        C:\Windows\system32\cmd.exe /c C:\Users\Admin\TROFFE\erythroph.exe
        1⤵
        • Suspicious use of WriteProcessMemory
        PID:5180
        • 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:5080
          • C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
            C:\Users\Admin\TROFFE\erythroph.exe
            3⤵
              PID:3380
            • 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:2588
          • 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:1940
            • C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
              C:\Users\Admin\TROFFE\erythroph.exe
              3⤵
                PID:1876
              • C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
                C:\Users\Admin\TROFFE\erythroph.exe
                3⤵
                  PID:996
                • 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:1100
            • C:\Windows\system32\cmd.exe
              C:\Windows\system32\cmd.exe /c C:\Users\Admin\TROFFE\erythroph.exe
              1⤵
                PID:1228
                • 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:5068
                  • 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:4520
              • C:\Windows\system32\cmd.exe
                C:\Windows\system32\cmd.exe /c C:\Users\Admin\TROFFE\erythroph.exe
                1⤵
                  PID:5668
                  • 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:276
                    • 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:4708
                • C:\Windows\system32\cmd.exe
                  C:\Windows\system32\cmd.exe /c C:\Users\Admin\TROFFE\erythroph.exe
                  1⤵
                    PID:4544
                    • 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:1752
                      • C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
                        C:\Users\Admin\TROFFE\erythroph.exe
                        3⤵
                          PID:3468
                        • 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:6044
                    • C:\Windows\system32\cmd.exe
                      C:\Windows\system32\cmd.exe /c C:\Users\Admin\TROFFE\erythroph.exe
                      1⤵
                        PID:5392
                        • 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:1640
                          • 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:2640
                      • C:\Windows\system32\cmd.exe
                        C:\Windows\system32\cmd.exe /c C:\Users\Admin\TROFFE\erythroph.exe
                        1⤵
                          PID:4768
                          • 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:5448
                            • 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:2092
                        • C:\Windows\system32\cmd.exe
                          C:\Windows\system32\cmd.exe /c C:\Users\Admin\TROFFE\erythroph.exe
                          1⤵
                            PID:1704
                            • 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:1484
                              • C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
                                C:\Users\Admin\TROFFE\erythroph.exe
                                3⤵
                                  PID:5528
                                • 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:5208
                            • C:\Windows\system32\cmd.exe
                              C:\Windows\system32\cmd.exe /c C:\Users\Admin\TROFFE\erythroph.exe
                              1⤵
                                PID:1664
                                • 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:2820
                                  • C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
                                    C:\Users\Admin\TROFFE\erythroph.exe
                                    3⤵
                                      PID:2592
                                    • 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:4920
                                • C:\Windows\system32\cmd.exe
                                  C:\Windows\system32\cmd.exe /c C:\Users\Admin\TROFFE\erythroph.exe
                                  1⤵
                                    PID:1424
                                    • 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:4676
                                      • 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:2756

                                  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/1212-2-0x0000000002260000-0x0000000002268000-memory.dmp

                                    Filesize

                                    32KB

                                    Download

                                  • memory/1212-3-0x00007FFE7D241000-0x00007FFE7D36A000-memory.dmp

                                    Filesize

                                    1.2MB

                                    Download

                                  • memory/1212-4-0x00007FFE7D240000-0x00007FFE7D449000-memory.dmp

                                    Filesize

                                    2.0MB

                                    Download

                                  • memory/1212-24-0x0000000002260000-0x0000000002268000-memory.dmp

                                    Filesize

                                    32KB

                                    Download

                                  • memory/1212-63-0x0000000002260000-0x0000000002268000-memory.dmp

                                    Filesize

                                    32KB

                                    Download

                                  • memory/4972-5-0x00007FFE7D240000-0x00007FFE7D449000-memory.dmp

                                    Filesize

                                    2.0MB

                                    Download

                                  • memory/4972-7-0x00007FFE7D240000-0x00007FFE7D449000-memory.dmp

                                    Filesize

                                    2.0MB

                                    Download

                                  • memory/4972-34-0x00007FFE7D240000-0x00007FFE7D449000-memory.dmp

                                    Filesize

                                    2.0MB

                                    Download

                                  • memory/5580-14-0x00007FFE7D240000-0x00007FFE7D449000-memory.dmp

                                    Filesize

                                    2.0MB

                                    Download

                                  • memory/5580-50-0x00007FFE7D240000-0x00007FFE7D449000-memory.dmp

                                    Filesize

                                    2.0MB

                                    Download

                                  • memory/6124-13-0x00007FFE7D240000-0x00007FFE7D449000-memory.dmp

                                    Filesize

                                    2.0MB

                                    Download