Analysis

  • max time kernel
    152s
  • max time network
    152s
  • platform
    windows7_x64
  • resource
    win7-20230831-en
  • resource tags

    arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
  • submitted
    26-09-2023 13:55

General

  • Target

    docdav20230926.exe

  • Size

    1.1MB

  • MD5

    909d39242d301cc07ffc6196bb487939

  • SHA1

    1025f0ad973b6423d58022fc50059fbfd1eac425

  • SHA256

    573df9fa921ac9c03d681fd60ca7488df873ff8d1d5f6f8a11807e3189af4761

  • SHA512

    b6cfbba8ac398292e4d048c5c648cb85ae20bbf804829e36f92d7a1206720eff20c5f2fbf771c1d79cca9c8de9c143b7cc0f84588dde072632f364c452de8016

  • SSDEEP

    12288:Ow7KEJ0aIgurDVQjqREzY3O8tA3QHNu6m15r1/jc/2eUsD:NKE8VQj+EU3Q3QtHm/5/A/XUsD

Malware Config

Extracted

Family

agenttesla

Credentials

Extracted

Family

snakekeylogger

Credentials

  • Protocol:
    ftp
  • Host:
    ftp://ftp.product-secured.com/
  • Port:
    21
  • Username:
    [email protected]
  • Password:
    575K5(MaZro2575K5(MaZro2

Signatures

  • AgentTesla

    Agent Tesla is a remote access tool (RAT) written in visual basic.

  • Snake Keylogger

    Keylogger and Infostealer first seen in November 2020.

  • Snake Keylogger payload 4 IoCs
  • Executes dropped EXE 4 IoCs
  • Loads dropped DLL 1 IoCs
  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 2 TTPs

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

  • Accesses Microsoft Outlook profiles 1 TTPs 6 IoCs
  • Looks up external IP address via web service 3 IoCs

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

  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Creates scheduled task(s) 1 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 62 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\docdav20230926.exe
    "C:\Users\Admin\AppData\Local\Temp\docdav20230926.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2168
    • C:\Users\Admin\AppData\Local\Temp\docdav20230926.exe
      "C:\Users\Admin\AppData\Local\Temp\docdav20230926.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:2644
    • C:\Users\Admin\AppData\Local\Temp\davidnew.exe
      "C:\Users\Admin\AppData\Local\Temp\davidnew.exe"
      2⤵
      • Executes dropped EXE
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • outlook_office_path
      • outlook_win_path
      PID:2820
    • C:\Windows\SysWOW64\cmd.exe
      "cmd" /c schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\svchost\svchost.exe'" /f
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2480
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\svchost\svchost.exe'" /f
        3⤵
        • Creates scheduled task(s)
        PID:2944
    • C:\Windows\SysWOW64\cmd.exe
      "cmd" /c mkdir "C:\Users\Admin\AppData\Roaming\svchost"
      2⤵
        PID:2484
      • C:\Windows\SysWOW64\cmd.exe
        "cmd" /c copy "C:\Users\Admin\AppData\Local\Temp\docdav20230926.exe" "C:\Users\Admin\AppData\Roaming\svchost\svchost.exe"
        2⤵
          PID:2516
      • C:\Windows\system32\taskeng.exe
        taskeng.exe {B5DECB25-40F3-4768-B151-4AA68AFB7F7C} S-1-5-21-3185155662-718608226-894467740-1000:YETUIZPU\Admin:Interactive:[1]
        1⤵
        • Suspicious use of WriteProcessMemory
        PID:2912
        • C:\Users\Admin\AppData\Roaming\svchost\svchost.exe
          C:\Users\Admin\AppData\Roaming\svchost\svchost.exe
          2⤵
          • Executes dropped EXE
          • Suspicious use of SetThreadContext
          • Suspicious use of WriteProcessMemory
          PID:1468
          • C:\Users\Admin\AppData\Roaming\svchost\svchost.exe
            "C:\Users\Admin\AppData\Roaming\svchost\svchost.exe"
            3⤵
            • Executes dropped EXE
            PID:2240
          • C:\Windows\SysWOW64\cmd.exe
            "cmd" /c mkdir "C:\Users\Admin\AppData\Roaming\svchost"
            3⤵
              PID:1400
            • C:\Windows\SysWOW64\cmd.exe
              "cmd" /c copy "C:\Users\Admin\AppData\Roaming\svchost\svchost.exe" "C:\Users\Admin\AppData\Roaming\svchost\svchost.exe"
              3⤵
                PID:1800
              • C:\Windows\SysWOW64\cmd.exe
                "cmd" /c schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\svchost\svchost.exe'" /f
                3⤵
                • Suspicious use of WriteProcessMemory
                PID:2388
                • C:\Windows\SysWOW64\schtasks.exe
                  schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\svchost\svchost.exe'" /f
                  4⤵
                  • Creates scheduled task(s)
                  PID:1332
            • C:\Users\Admin\AppData\Roaming\svchost\svchost.exe
              C:\Users\Admin\AppData\Roaming\svchost\svchost.exe
              2⤵
              • Executes dropped EXE
              PID:932

          Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

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          Downloads

          • C:\Users\Admin\AppData\Local\Temp\davidnew.exe

            Filesize

            126KB

            MD5

            7fe292bc5ea2ef1ec95fbe7c4283b69b

            SHA1

            1b4ac2a792855b53db41b4280c4f41f60895a41d

            SHA256

            fe5c1d889311a86b8c0c29a8585acaf79bef3a03c3db746e582dc21ddda60a07

            SHA512

            e0d753ed326fb33af00e301f05bc943fe072162b37964be965f19d5181de0775e11bca5c637b62a1c6db0b94366dc07967faee2d536afca5640994f21f12544c

          • C:\Users\Admin\AppData\Local\Temp\davidnew.exe

            Filesize

            126KB

            MD5

            7fe292bc5ea2ef1ec95fbe7c4283b69b

            SHA1

            1b4ac2a792855b53db41b4280c4f41f60895a41d

            SHA256

            fe5c1d889311a86b8c0c29a8585acaf79bef3a03c3db746e582dc21ddda60a07

            SHA512

            e0d753ed326fb33af00e301f05bc943fe072162b37964be965f19d5181de0775e11bca5c637b62a1c6db0b94366dc07967faee2d536afca5640994f21f12544c

          • C:\Users\Admin\AppData\Roaming\svchost\svchost.exe

            Filesize

            1.1MB

            MD5

            909d39242d301cc07ffc6196bb487939

            SHA1

            1025f0ad973b6423d58022fc50059fbfd1eac425

            SHA256

            573df9fa921ac9c03d681fd60ca7488df873ff8d1d5f6f8a11807e3189af4761

            SHA512

            b6cfbba8ac398292e4d048c5c648cb85ae20bbf804829e36f92d7a1206720eff20c5f2fbf771c1d79cca9c8de9c143b7cc0f84588dde072632f364c452de8016

          • C:\Users\Admin\AppData\Roaming\svchost\svchost.exe

            Filesize

            1.1MB

            MD5

            909d39242d301cc07ffc6196bb487939

            SHA1

            1025f0ad973b6423d58022fc50059fbfd1eac425

            SHA256

            573df9fa921ac9c03d681fd60ca7488df873ff8d1d5f6f8a11807e3189af4761

            SHA512

            b6cfbba8ac398292e4d048c5c648cb85ae20bbf804829e36f92d7a1206720eff20c5f2fbf771c1d79cca9c8de9c143b7cc0f84588dde072632f364c452de8016

          • C:\Users\Admin\AppData\Roaming\svchost\svchost.exe

            Filesize

            1.1MB

            MD5

            909d39242d301cc07ffc6196bb487939

            SHA1

            1025f0ad973b6423d58022fc50059fbfd1eac425

            SHA256

            573df9fa921ac9c03d681fd60ca7488df873ff8d1d5f6f8a11807e3189af4761

            SHA512

            b6cfbba8ac398292e4d048c5c648cb85ae20bbf804829e36f92d7a1206720eff20c5f2fbf771c1d79cca9c8de9c143b7cc0f84588dde072632f364c452de8016

          • C:\Users\Admin\AppData\Roaming\svchost\svchost.exe

            Filesize

            1.1MB

            MD5

            909d39242d301cc07ffc6196bb487939

            SHA1

            1025f0ad973b6423d58022fc50059fbfd1eac425

            SHA256

            573df9fa921ac9c03d681fd60ca7488df873ff8d1d5f6f8a11807e3189af4761

            SHA512

            b6cfbba8ac398292e4d048c5c648cb85ae20bbf804829e36f92d7a1206720eff20c5f2fbf771c1d79cca9c8de9c143b7cc0f84588dde072632f364c452de8016

          • \Users\Admin\AppData\Local\Temp\davidnew.exe

            Filesize

            126KB

            MD5

            7fe292bc5ea2ef1ec95fbe7c4283b69b

            SHA1

            1b4ac2a792855b53db41b4280c4f41f60895a41d

            SHA256

            fe5c1d889311a86b8c0c29a8585acaf79bef3a03c3db746e582dc21ddda60a07

            SHA512

            e0d753ed326fb33af00e301f05bc943fe072162b37964be965f19d5181de0775e11bca5c637b62a1c6db0b94366dc07967faee2d536afca5640994f21f12544c

          • memory/932-67-0x0000000074070000-0x000000007475E000-memory.dmp

            Filesize

            6.9MB

          • memory/932-66-0x0000000074070000-0x000000007475E000-memory.dmp

            Filesize

            6.9MB

          • memory/1468-64-0x0000000074070000-0x000000007475E000-memory.dmp

            Filesize

            6.9MB

          • memory/1468-42-0x00000000048F0000-0x0000000004930000-memory.dmp

            Filesize

            256KB

          • memory/1468-38-0x0000000000B50000-0x0000000000C70000-memory.dmp

            Filesize

            1.1MB

          • memory/1468-40-0x00000000048F0000-0x0000000004930000-memory.dmp

            Filesize

            256KB

          • memory/1468-39-0x0000000074070000-0x000000007475E000-memory.dmp

            Filesize

            6.9MB

          • memory/1468-41-0x0000000074070000-0x000000007475E000-memory.dmp

            Filesize

            6.9MB

          • memory/2168-4-0x00000000003D0000-0x0000000000410000-memory.dmp

            Filesize

            256KB

          • memory/2168-3-0x00000000003D0000-0x0000000000410000-memory.dmp

            Filesize

            256KB

          • memory/2168-2-0x0000000074070000-0x000000007475E000-memory.dmp

            Filesize

            6.9MB

          • memory/2168-5-0x0000000000B70000-0x0000000000C10000-memory.dmp

            Filesize

            640KB

          • memory/2168-28-0x0000000074070000-0x000000007475E000-memory.dmp

            Filesize

            6.9MB

          • memory/2168-0-0x0000000074070000-0x000000007475E000-memory.dmp

            Filesize

            6.9MB

          • memory/2168-1-0x0000000001070000-0x0000000001190000-memory.dmp

            Filesize

            1.1MB

          • memory/2240-62-0x0000000000080000-0x00000000000C4000-memory.dmp

            Filesize

            272KB

          • memory/2240-53-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

            Filesize

            4KB

          • memory/2240-58-0x0000000000080000-0x00000000000C4000-memory.dmp

            Filesize

            272KB

          • memory/2644-12-0x0000000000400000-0x0000000000444000-memory.dmp

            Filesize

            272KB

          • memory/2644-17-0x0000000000400000-0x0000000000444000-memory.dmp

            Filesize

            272KB

          • memory/2644-6-0x0000000000400000-0x0000000000444000-memory.dmp

            Filesize

            272KB

          • memory/2644-33-0x0000000004C60000-0x0000000004CA0000-memory.dmp

            Filesize

            256KB

          • memory/2644-32-0x0000000074070000-0x000000007475E000-memory.dmp

            Filesize

            6.9MB

          • memory/2644-7-0x0000000000400000-0x0000000000444000-memory.dmp

            Filesize

            272KB

          • memory/2644-8-0x0000000000400000-0x0000000000444000-memory.dmp

            Filesize

            272KB

          • memory/2644-9-0x0000000000400000-0x0000000000444000-memory.dmp

            Filesize

            272KB

          • memory/2644-19-0x0000000004C60000-0x0000000004CA0000-memory.dmp

            Filesize

            256KB

          • memory/2644-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

            Filesize

            4KB

          • memory/2644-15-0x0000000000400000-0x0000000000444000-memory.dmp

            Filesize

            272KB

          • memory/2644-18-0x0000000074070000-0x000000007475E000-memory.dmp

            Filesize

            6.9MB

          • memory/2820-31-0x0000000004B60000-0x0000000004BA0000-memory.dmp

            Filesize

            256KB

          • memory/2820-44-0x0000000004B60000-0x0000000004BA0000-memory.dmp

            Filesize

            256KB

          • memory/2820-43-0x0000000004B60000-0x0000000004BA0000-memory.dmp

            Filesize

            256KB

          • memory/2820-26-0x0000000000850000-0x0000000000876000-memory.dmp

            Filesize

            152KB

          • memory/2820-27-0x0000000074070000-0x000000007475E000-memory.dmp

            Filesize

            6.9MB

          • memory/2820-35-0x0000000004B60000-0x0000000004BA0000-memory.dmp

            Filesize

            256KB

          • memory/2820-34-0x0000000074070000-0x000000007475E000-memory.dmp

            Filesize

            6.9MB