Analysis

  • max time kernel
    119s
  • max time network
    136s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    02/11/2024, 09:36

General

  • Target

    f8dc556dc94d54b774d9420814893cf45c6eef5b1f7cf6d894987a8d3ffcfc2e.exe

  • Size

    153KB

  • MD5

    e13fb88ca7d0aef839c0ca07eb36d28b

  • SHA1

    c020b62797cd6875ba054c40a9b2e416c56c8139

  • SHA256

    f8dc556dc94d54b774d9420814893cf45c6eef5b1f7cf6d894987a8d3ffcfc2e

  • SHA512

    1ac33d19dab7103f32bbf14c615a3d61288a42fcd410fc9de5208dc8dd64f90fe212195905ceb027bd7642157926e3bc2ecac2b45e7432c580793f6b60450051

  • SSDEEP

    3072:/P7oGe+wBMxz2h4J9bZJTxlo4D3QO7YSymHCP9ncW+8M7WATFzrNgKolW/C9JTTu:/ToGeXBkyyJ9bZ547O

Malware Config

Signatures

  • Deletes itself 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Reads WinSCP keys stored on the system 2 TTPs

    Tries to access WinSCP stored sessions.

  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses Microsoft Outlook profiles 1 TTPs 9 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • Enumerates physical storage devices 1 TTPs

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

  • Event Triggered Execution: Netsh Helper DLL 1 TTPs 6 IoCs

    Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

  • System Network Configuration Discovery: Wi-Fi Discovery 1 TTPs 2 IoCs

    Adversaries may search for information about Wi-Fi networks, such as network names and passwords, on compromised systems.

  • Delays execution with timeout.exe 1 IoCs
  • Modifies system certificate store 2 TTPs 4 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 18 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 42 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f8dc556dc94d54b774d9420814893cf45c6eef5b1f7cf6d894987a8d3ffcfc2e.exe
    "C:\Users\Admin\AppData\Local\Temp\f8dc556dc94d54b774d9420814893cf45c6eef5b1f7cf6d894987a8d3ffcfc2e.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1076
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /C chcp 65001 && timeout /t 3 > NUL && schtasks /create /tn "f8dc556dc94d54b774d9420814893cf45c6eef5b1f7cf6d894987a8d3ffcfc2e" /sc MINUTE /tr "C:\Users\Admin\AppData\Local\Starlabs\f8dc556dc94d54b774d9420814893cf45c6eef5b1f7cf6d894987a8d3ffcfc2e.exe" /rl HIGHEST /f && DEL /F /S /Q /A "C:\Users\Admin\AppData\Local\Temp\f8dc556dc94d54b774d9420814893cf45c6eef5b1f7cf6d894987a8d3ffcfc2e.exe" &&START "" "C:\Users\Admin\AppData\Local\Starlabs\f8dc556dc94d54b774d9420814893cf45c6eef5b1f7cf6d894987a8d3ffcfc2e.exe"
      2⤵
      • Deletes itself
      • Suspicious use of WriteProcessMemory
      PID:1908
      • C:\Windows\system32\chcp.com
        chcp 65001
        3⤵
          PID:2872
        • C:\Windows\system32\timeout.exe
          timeout /t 3
          3⤵
          • Delays execution with timeout.exe
          PID:2888
        • C:\Windows\system32\schtasks.exe
          schtasks /create /tn "f8dc556dc94d54b774d9420814893cf45c6eef5b1f7cf6d894987a8d3ffcfc2e" /sc MINUTE /tr "C:\Users\Admin\AppData\Local\Starlabs\f8dc556dc94d54b774d9420814893cf45c6eef5b1f7cf6d894987a8d3ffcfc2e.exe" /rl HIGHEST /f
          3⤵
          • Scheduled Task/Job: Scheduled Task
          PID:2720
        • C:\Users\Admin\AppData\Local\Starlabs\f8dc556dc94d54b774d9420814893cf45c6eef5b1f7cf6d894987a8d3ffcfc2e.exe
          "C:\Users\Admin\AppData\Local\Starlabs\f8dc556dc94d54b774d9420814893cf45c6eef5b1f7cf6d894987a8d3ffcfc2e.exe"
          3⤵
          • Executes dropped EXE
          • Accesses Microsoft Outlook profiles
          • Modifies system certificate store
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          • outlook_office_path
          • outlook_win_path
          PID:2896
          • C:\Windows\system32\cmd.exe
            "cmd.exe" /c chcp 65001 && netsh wlan show profiles|findstr /R /C:"[ ]:[ ]"
            4⤵
            • System Network Configuration Discovery: Wi-Fi Discovery
            • Suspicious use of WriteProcessMemory
            PID:1904
            • C:\Windows\system32\chcp.com
              chcp 65001
              5⤵
                PID:2140
              • C:\Windows\system32\netsh.exe
                netsh wlan show profiles
                5⤵
                • Event Triggered Execution: Netsh Helper DLL
                • System Network Configuration Discovery: Wi-Fi Discovery
                PID:1964
              • C:\Windows\system32\findstr.exe
                findstr /R /C:"[ ]:[ ]"
                5⤵
                  PID:2568
              • C:\Windows\system32\cmd.exe
                "cmd.exe" /c chcp 65001 && netsh wlan show networks mode=bssid | findstr "SSID BSSID Signal"
                4⤵
                • Suspicious use of WriteProcessMemory
                PID:2060
                • C:\Windows\system32\chcp.com
                  chcp 65001
                  5⤵
                    PID:1496
                  • C:\Windows\system32\netsh.exe
                    netsh wlan show networks mode=bssid
                    5⤵
                    • Event Triggered Execution: Netsh Helper DLL
                    PID:2304
                  • C:\Windows\system32\findstr.exe
                    findstr "SSID BSSID Signal"
                    5⤵
                      PID:3064
            • C:\Windows\system32\taskeng.exe
              taskeng.exe {7EC235A8-FAF7-4EB9-8549-378389A63091} S-1-5-21-2872745919-2748461613-2989606286-1000:CCJBVTGQ\Admin:Interactive:[1]
              1⤵
              • Suspicious use of WriteProcessMemory
              PID:2012
              • C:\Users\Admin\AppData\Local\Starlabs\f8dc556dc94d54b774d9420814893cf45c6eef5b1f7cf6d894987a8d3ffcfc2e.exe
                C:\Users\Admin\AppData\Local\Starlabs\f8dc556dc94d54b774d9420814893cf45c6eef5b1f7cf6d894987a8d3ffcfc2e.exe
                2⤵
                • Executes dropped EXE
                • Suspicious behavior: EnumeratesProcesses
                • Suspicious use of AdjustPrivilegeToken
                • Suspicious use of SetWindowsHookEx
                PID:1364

            Network

                  MITRE ATT&CK Enterprise v15

                  Replay Monitor

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                  Downloads

                  • C:\Users\Admin\AppData\Local\Starlabs\f8dc556dc94d54b774d9420814893cf45c6eef5b1f7cf6d894987a8d3ffcfc2e.exe

                    Filesize

                    153KB

                    MD5

                    e13fb88ca7d0aef839c0ca07eb36d28b

                    SHA1

                    c020b62797cd6875ba054c40a9b2e416c56c8139

                    SHA256

                    f8dc556dc94d54b774d9420814893cf45c6eef5b1f7cf6d894987a8d3ffcfc2e

                    SHA512

                    1ac33d19dab7103f32bbf14c615a3d61288a42fcd410fc9de5208dc8dd64f90fe212195905ceb027bd7642157926e3bc2ecac2b45e7432c580793f6b60450051

                  • C:\Users\Admin\AppData\Local\Temp\CabECE1.tmp

                    Filesize

                    70KB

                    MD5

                    49aebf8cbd62d92ac215b2923fb1b9f5

                    SHA1

                    1723be06719828dda65ad804298d0431f6aff976

                    SHA256

                    b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

                    SHA512

                    bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

                  • C:\Users\Admin\AppData\Local\Temp\TarEE0D.tmp

                    Filesize

                    181KB

                    MD5

                    4ea6026cf93ec6338144661bf1202cd1

                    SHA1

                    a1dec9044f750ad887935a01430bf49322fbdcb7

                    SHA256

                    8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

                    SHA512

                    6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

                  • C:\Users\Admin\AppData\Local\zfzs6gcqx8\p.dat

                    Filesize

                    4B

                    MD5

                    9cd3598a91516950427c605ae29cff68

                    SHA1

                    339012083576ab4752ec23637f1f049fabf1d3f7

                    SHA256

                    2cafe232be9a37514d28d81a51f83e1da635e017dc744663bdd28cc7f9803a44

                    SHA512

                    df07de1a8404459a789a856d7f3f7842c31c091ef23373b73279efb3722f5e19d7495c1c8d03129b10ce33c2a7a8fd34228e0b3d74deff23f2a80e70babb18b7

                  • memory/1076-0-0x000007FEF5DA3000-0x000007FEF5DA4000-memory.dmp

                    Filesize

                    4KB

                  • memory/1076-1-0x0000000000F00000-0x0000000000F2C000-memory.dmp

                    Filesize

                    176KB

                  • memory/1076-2-0x000007FEF5DA0000-0x000007FEF678C000-memory.dmp

                    Filesize

                    9.9MB

                  • memory/1076-5-0x000007FEF5DA0000-0x000007FEF678C000-memory.dmp

                    Filesize

                    9.9MB

                  • memory/2896-9-0x00000000013C0000-0x00000000013EC000-memory.dmp

                    Filesize

                    176KB