Analysis

  • max time kernel
    144s
  • max time network
    132s
  • 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

    docfra20230925.exe

  • Size

    1.3MB

  • MD5

    5d86018377d9cf83e6e2c08fd9fd60d3

  • SHA1

    3ae1897f221aa5893f8aff0bfd79666f8ba2236f

  • SHA256

    1c1a28fdaac92ef8a7f6032dd94cdc56a690fc78c99910a5b78709435ea992f3

  • SHA512

    d2ea45f5f6aa1561468ff5657d6b9cfc1fe3168621dde2706423cf26c12a8c5a0fa920275bc2a7294d341e39da71493975b0c4632701d4629966b1a058b52fb7

  • SSDEEP

    24576:YkzJBUqX3qbkN6s2P2VElQJyNmXy76p7ZUgSb2H8KZ/L2zZnJf+MCFL3:YkNBH16sVOy0NmXIgSudT2teL

Malware Config

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 8 IoCs
  • Executes dropped EXE 6 IoCs
  • Loads dropped DLL 3 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 3 IoCs
  • Looks up external IP address via web service 2 IoCs

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

  • Suspicious use of SetThreadContext 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Creates scheduled task(s) 1 TTPs 3 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: SetClipboardViewer 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\docfra20230925.exe
    "C:\Users\Admin\AppData\Local\Temp\docfra20230925.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2404
    • C:\Users\Admin\AppData\Local\Temp\docfra20230925.exe
      "C:\Users\Admin\AppData\Local\Temp\docfra20230925.exe"
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:2636
      • C:\Users\Admin\AppData\Roaming\frankdan.exe
        "C:\Users\Admin\AppData\Roaming\frankdan.exe"
        3⤵
        • 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:1372
    • C:\Users\Admin\AppData\Local\Temp\svchost.exe
      "C:\Users\Admin\AppData\Local\Temp\svchost.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of SetThreadContext
      • Suspicious use of WriteProcessMemory
      PID:2560
      • C:\Users\Admin\AppData\Local\Temp\svchost.exe
        "C:\Users\Admin\AppData\Local\Temp\svchost.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: SetClipboardViewer
        PID:884
      • C:\Windows\SysWOW64\cmd.exe
        "cmd" /c schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\avast\avast.exe'" /f
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1640
        • C:\Windows\SysWOW64\schtasks.exe
          schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\avast\avast.exe'" /f
          4⤵
          • Creates scheduled task(s)
          PID:2180
      • C:\Windows\SysWOW64\cmd.exe
        "cmd" /c copy "C:\Users\Admin\AppData\Local\Temp\svchost.exe" "C:\Users\Admin\AppData\Roaming\avast\avast.exe"
        3⤵
          PID:1948
        • C:\Windows\SysWOW64\cmd.exe
          "cmd" /c mkdir "C:\Users\Admin\AppData\Roaming\avast"
          3⤵
            PID:1632
        • C:\Windows\SysWOW64\cmd.exe
          "cmd" /c mkdir "C:\Users\Admin\AppData\Roaming\svchost"
          2⤵
            PID:1388
          • 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:2912
            • 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:2132
          • C:\Windows\SysWOW64\cmd.exe
            "cmd" /c copy "C:\Users\Admin\AppData\Local\Temp\docfra20230925.exe" "C:\Users\Admin\AppData\Roaming\svchost\svchost.exe"
            2⤵
              PID:2892
          • C:\Windows\system32\taskeng.exe
            taskeng.exe {52012DB3-A57F-4BCF-BE93-1EC2DD695A82} S-1-5-21-3750544865-3773649541-1858556521-1000:XOCYHKRS\Admin:Interactive:[1]
            1⤵
            • Suspicious use of WriteProcessMemory
            PID:2788
            • 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:740
              • C:\Users\Admin\AppData\Roaming\svchost\svchost.exe
                "C:\Users\Admin\AppData\Roaming\svchost\svchost.exe"
                3⤵
                • Executes dropped EXE
                PID:2136
              • C:\Windows\SysWOW64\cmd.exe
                "cmd" /c mkdir "C:\Users\Admin\AppData\Roaming\svchost"
                3⤵
                  PID:1896
                • 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:2032
                  • 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⤵
                      PID:1816
                      • 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:2184
                  • C:\Users\Admin\AppData\Roaming\svchost\svchost.exe
                    C:\Users\Admin\AppData\Roaming\svchost\svchost.exe
                    2⤵
                    • Executes dropped EXE
                    PID:1696

                Network

                MITRE ATT&CK Enterprise v15

                Replay Monitor

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                Downloads

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

                  Filesize

                  621KB

                  MD5

                  ed9d91fe584d5109d4067734ac452753

                  SHA1

                  c277e57866833509d94787fc6f4d634a2714825d

                  SHA256

                  3629ed9b94ae5d0f2659d02dcb7ce258cb5c2497d5bf18f3c4fed78878fba030

                  SHA512

                  a6603acb550b897ec91b5c57b3034b8fd44ad9d675662aade0a078771b533b28e320c12c063c4ae48bfb23e8dfc85f304679458ea111db2e737043af0261bb1a

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

                  Filesize

                  621KB

                  MD5

                  ed9d91fe584d5109d4067734ac452753

                  SHA1

                  c277e57866833509d94787fc6f4d634a2714825d

                  SHA256

                  3629ed9b94ae5d0f2659d02dcb7ce258cb5c2497d5bf18f3c4fed78878fba030

                  SHA512

                  a6603acb550b897ec91b5c57b3034b8fd44ad9d675662aade0a078771b533b28e320c12c063c4ae48bfb23e8dfc85f304679458ea111db2e737043af0261bb1a

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

                  Filesize

                  621KB

                  MD5

                  ed9d91fe584d5109d4067734ac452753

                  SHA1

                  c277e57866833509d94787fc6f4d634a2714825d

                  SHA256

                  3629ed9b94ae5d0f2659d02dcb7ce258cb5c2497d5bf18f3c4fed78878fba030

                  SHA512

                  a6603acb550b897ec91b5c57b3034b8fd44ad9d675662aade0a078771b533b28e320c12c063c4ae48bfb23e8dfc85f304679458ea111db2e737043af0261bb1a

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

                  Filesize

                  621KB

                  MD5

                  ed9d91fe584d5109d4067734ac452753

                  SHA1

                  c277e57866833509d94787fc6f4d634a2714825d

                  SHA256

                  3629ed9b94ae5d0f2659d02dcb7ce258cb5c2497d5bf18f3c4fed78878fba030

                  SHA512

                  a6603acb550b897ec91b5c57b3034b8fd44ad9d675662aade0a078771b533b28e320c12c063c4ae48bfb23e8dfc85f304679458ea111db2e737043af0261bb1a

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

                  Filesize

                  247KB

                  MD5

                  e254aed552568e13df13e204adcb8011

                  SHA1

                  18deaf67ac2a3ae2be3d3e620f650cb6edcba92a

                  SHA256

                  23b22ca7ca4272afba9114cc3da4316c38c2407574cb1649aa549c9a7e792ae5

                  SHA512

                  f89aa1487f6c1c2e9a3b76de8137b56da65c1d2df6f40439c0da4726478a11fbea83f7c3ad0530e12a1fb0cd808062d8f2a915879c0d5e210f3340138ace8c3f

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

                  Filesize

                  247KB

                  MD5

                  e254aed552568e13df13e204adcb8011

                  SHA1

                  18deaf67ac2a3ae2be3d3e620f650cb6edcba92a

                  SHA256

                  23b22ca7ca4272afba9114cc3da4316c38c2407574cb1649aa549c9a7e792ae5

                  SHA512

                  f89aa1487f6c1c2e9a3b76de8137b56da65c1d2df6f40439c0da4726478a11fbea83f7c3ad0530e12a1fb0cd808062d8f2a915879c0d5e210f3340138ace8c3f

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

                  Filesize

                  1.3MB

                  MD5

                  5d86018377d9cf83e6e2c08fd9fd60d3

                  SHA1

                  3ae1897f221aa5893f8aff0bfd79666f8ba2236f

                  SHA256

                  1c1a28fdaac92ef8a7f6032dd94cdc56a690fc78c99910a5b78709435ea992f3

                  SHA512

                  d2ea45f5f6aa1561468ff5657d6b9cfc1fe3168621dde2706423cf26c12a8c5a0fa920275bc2a7294d341e39da71493975b0c4632701d4629966b1a058b52fb7

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

                  Filesize

                  1.3MB

                  MD5

                  5d86018377d9cf83e6e2c08fd9fd60d3

                  SHA1

                  3ae1897f221aa5893f8aff0bfd79666f8ba2236f

                  SHA256

                  1c1a28fdaac92ef8a7f6032dd94cdc56a690fc78c99910a5b78709435ea992f3

                  SHA512

                  d2ea45f5f6aa1561468ff5657d6b9cfc1fe3168621dde2706423cf26c12a8c5a0fa920275bc2a7294d341e39da71493975b0c4632701d4629966b1a058b52fb7

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

                  Filesize

                  1.3MB

                  MD5

                  5d86018377d9cf83e6e2c08fd9fd60d3

                  SHA1

                  3ae1897f221aa5893f8aff0bfd79666f8ba2236f

                  SHA256

                  1c1a28fdaac92ef8a7f6032dd94cdc56a690fc78c99910a5b78709435ea992f3

                  SHA512

                  d2ea45f5f6aa1561468ff5657d6b9cfc1fe3168621dde2706423cf26c12a8c5a0fa920275bc2a7294d341e39da71493975b0c4632701d4629966b1a058b52fb7

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

                  Filesize

                  1.3MB

                  MD5

                  5d86018377d9cf83e6e2c08fd9fd60d3

                  SHA1

                  3ae1897f221aa5893f8aff0bfd79666f8ba2236f

                  SHA256

                  1c1a28fdaac92ef8a7f6032dd94cdc56a690fc78c99910a5b78709435ea992f3

                  SHA512

                  d2ea45f5f6aa1561468ff5657d6b9cfc1fe3168621dde2706423cf26c12a8c5a0fa920275bc2a7294d341e39da71493975b0c4632701d4629966b1a058b52fb7

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

                  Filesize

                  621KB

                  MD5

                  ed9d91fe584d5109d4067734ac452753

                  SHA1

                  c277e57866833509d94787fc6f4d634a2714825d

                  SHA256

                  3629ed9b94ae5d0f2659d02dcb7ce258cb5c2497d5bf18f3c4fed78878fba030

                  SHA512

                  a6603acb550b897ec91b5c57b3034b8fd44ad9d675662aade0a078771b533b28e320c12c063c4ae48bfb23e8dfc85f304679458ea111db2e737043af0261bb1a

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

                  Filesize

                  621KB

                  MD5

                  ed9d91fe584d5109d4067734ac452753

                  SHA1

                  c277e57866833509d94787fc6f4d634a2714825d

                  SHA256

                  3629ed9b94ae5d0f2659d02dcb7ce258cb5c2497d5bf18f3c4fed78878fba030

                  SHA512

                  a6603acb550b897ec91b5c57b3034b8fd44ad9d675662aade0a078771b533b28e320c12c063c4ae48bfb23e8dfc85f304679458ea111db2e737043af0261bb1a

                • \Users\Admin\AppData\Roaming\frankdan.exe

                  Filesize

                  247KB

                  MD5

                  e254aed552568e13df13e204adcb8011

                  SHA1

                  18deaf67ac2a3ae2be3d3e620f650cb6edcba92a

                  SHA256

                  23b22ca7ca4272afba9114cc3da4316c38c2407574cb1649aa549c9a7e792ae5

                  SHA512

                  f89aa1487f6c1c2e9a3b76de8137b56da65c1d2df6f40439c0da4726478a11fbea83f7c3ad0530e12a1fb0cd808062d8f2a915879c0d5e210f3340138ace8c3f

                • memory/740-51-0x0000000074190000-0x000000007487E000-memory.dmp

                  Filesize

                  6.9MB

                • memory/740-52-0x0000000000080000-0x00000000001D0000-memory.dmp

                  Filesize

                  1.3MB

                • memory/740-104-0x0000000074190000-0x000000007487E000-memory.dmp

                  Filesize

                  6.9MB

                • memory/740-81-0x00000000022A0000-0x00000000022E0000-memory.dmp

                  Filesize

                  256KB

                • memory/740-80-0x0000000074190000-0x000000007487E000-memory.dmp

                  Filesize

                  6.9MB

                • memory/740-53-0x00000000022A0000-0x00000000022E0000-memory.dmp

                  Filesize

                  256KB

                • memory/884-58-0x0000000000130000-0x0000000000148000-memory.dmp

                  Filesize

                  96KB

                • memory/884-79-0x00000000007E0000-0x0000000000820000-memory.dmp

                  Filesize

                  256KB

                • memory/884-62-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

                  Filesize

                  4KB

                • memory/884-56-0x0000000000130000-0x0000000000148000-memory.dmp

                  Filesize

                  96KB

                • memory/884-60-0x0000000000130000-0x0000000000148000-memory.dmp

                  Filesize

                  96KB

                • memory/884-67-0x0000000000130000-0x0000000000148000-memory.dmp

                  Filesize

                  96KB

                • memory/884-72-0x0000000000130000-0x0000000000148000-memory.dmp

                  Filesize

                  96KB

                • memory/884-66-0x0000000000130000-0x0000000000148000-memory.dmp

                  Filesize

                  96KB

                • memory/884-77-0x0000000000130000-0x0000000000148000-memory.dmp

                  Filesize

                  96KB

                • memory/884-83-0x00000000007E0000-0x0000000000820000-memory.dmp

                  Filesize

                  256KB

                • memory/884-78-0x0000000074190000-0x000000007487E000-memory.dmp

                  Filesize

                  6.9MB

                • memory/884-59-0x0000000000130000-0x0000000000148000-memory.dmp

                  Filesize

                  96KB

                • memory/884-82-0x0000000074190000-0x000000007487E000-memory.dmp

                  Filesize

                  6.9MB

                • memory/1372-45-0x0000000074190000-0x000000007487E000-memory.dmp

                  Filesize

                  6.9MB

                • memory/1372-48-0x0000000004AE0000-0x0000000004B20000-memory.dmp

                  Filesize

                  256KB

                • memory/1372-44-0x0000000004AE0000-0x0000000004B20000-memory.dmp

                  Filesize

                  256KB

                • memory/1372-30-0x0000000074190000-0x000000007487E000-memory.dmp

                  Filesize

                  6.9MB

                • memory/1372-29-0x0000000001320000-0x0000000001364000-memory.dmp

                  Filesize

                  272KB

                • memory/1696-108-0x0000000000850000-0x00000000009A0000-memory.dmp

                  Filesize

                  1.3MB

                • memory/1696-109-0x0000000004550000-0x0000000004590000-memory.dmp

                  Filesize

                  256KB

                • memory/1696-107-0x0000000074190000-0x000000007487E000-memory.dmp

                  Filesize

                  6.9MB

                • memory/1696-110-0x0000000074190000-0x000000007487E000-memory.dmp

                  Filesize

                  6.9MB

                • memory/1696-111-0x0000000004550000-0x0000000004590000-memory.dmp

                  Filesize

                  256KB

                • memory/2136-90-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

                  Filesize

                  4KB

                • memory/2136-95-0x0000000000220000-0x0000000000286000-memory.dmp

                  Filesize

                  408KB

                • memory/2136-105-0x0000000074190000-0x000000007487E000-memory.dmp

                  Filesize

                  6.9MB

                • memory/2136-103-0x0000000074190000-0x000000007487E000-memory.dmp

                  Filesize

                  6.9MB

                • memory/2136-99-0x0000000000220000-0x0000000000286000-memory.dmp

                  Filesize

                  408KB

                • memory/2136-102-0x0000000000220000-0x0000000000286000-memory.dmp

                  Filesize

                  408KB

                • memory/2404-0-0x00000000009B0000-0x0000000000B00000-memory.dmp

                  Filesize

                  1.3MB

                • memory/2404-5-0x0000000004930000-0x0000000004A90000-memory.dmp

                  Filesize

                  1.4MB

                • memory/2404-4-0x0000000004B00000-0x0000000004B40000-memory.dmp

                  Filesize

                  256KB

                • memory/2404-3-0x0000000074190000-0x000000007487E000-memory.dmp

                  Filesize

                  6.9MB

                • memory/2404-2-0x0000000004B00000-0x0000000004B40000-memory.dmp

                  Filesize

                  256KB

                • memory/2404-1-0x0000000074190000-0x000000007487E000-memory.dmp

                  Filesize

                  6.9MB

                • memory/2404-43-0x0000000074190000-0x000000007487E000-memory.dmp

                  Filesize

                  6.9MB

                • memory/2560-39-0x0000000074190000-0x000000007487E000-memory.dmp

                  Filesize

                  6.9MB

                • memory/2560-68-0x0000000074190000-0x000000007487E000-memory.dmp

                  Filesize

                  6.9MB

                • memory/2560-46-0x0000000074190000-0x000000007487E000-memory.dmp

                  Filesize

                  6.9MB

                • memory/2560-47-0x0000000004310000-0x0000000004350000-memory.dmp

                  Filesize

                  256KB

                • memory/2560-40-0x0000000004310000-0x0000000004350000-memory.dmp

                  Filesize

                  256KB

                • memory/2560-54-0x0000000000540000-0x000000000056C000-memory.dmp

                  Filesize

                  176KB

                • memory/2560-38-0x0000000000060000-0x0000000000102000-memory.dmp

                  Filesize

                  648KB

                • memory/2636-17-0x0000000000400000-0x0000000000466000-memory.dmp

                  Filesize

                  408KB

                • memory/2636-11-0x0000000000400000-0x0000000000466000-memory.dmp

                  Filesize

                  408KB

                • memory/2636-32-0x0000000074190000-0x000000007487E000-memory.dmp

                  Filesize

                  6.9MB

                • memory/2636-21-0x0000000074190000-0x000000007487E000-memory.dmp

                  Filesize

                  6.9MB

                • memory/2636-19-0x0000000000400000-0x0000000000466000-memory.dmp

                  Filesize

                  408KB

                • memory/2636-8-0x0000000000400000-0x0000000000466000-memory.dmp

                  Filesize

                  408KB

                • memory/2636-6-0x0000000000400000-0x0000000000466000-memory.dmp

                  Filesize

                  408KB

                • memory/2636-20-0x0000000000330000-0x0000000000338000-memory.dmp

                  Filesize

                  32KB

                • memory/2636-10-0x0000000000400000-0x0000000000466000-memory.dmp

                  Filesize

                  408KB

                • memory/2636-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

                  Filesize

                  4KB

                • memory/2636-14-0x0000000000400000-0x0000000000466000-memory.dmp

                  Filesize

                  408KB