Analysis

  • max time kernel
    201s
  • max time network
    159s
  • platform
    windows7_x64
  • resource
    win7-20230831-en
  • resource tags

    arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
  • submitted
    11-10-2023 11:24

General

  • Target

    26e4c2040af6ee16a1794c86220f5249743ec9c9ceee933645331c1e54ebcca6_JC.exe

  • Size

    1.3MB

  • MD5

    aa9dd2c152d86d81236ad564d3c2a078

  • SHA1

    c03deff1a4d16f3d8ababdbc46ee84434edf45da

  • SHA256

    26e4c2040af6ee16a1794c86220f5249743ec9c9ceee933645331c1e54ebcca6

  • SHA512

    9175e0bbedb2ec048225b90312342663079282c3d63bb9eaea91b39395c0c4ff726c8dfd6d9283b5eb291b63451cc9108228c83773cfaa2be7a7b02eea0c3a82

  • SSDEEP

    24576:oIluyj5gi9DaTSV//eSGUZgCRZ4cuApE9eOKUvau9Z5JiN:oIluyjui9Dmk/BGcDR0ApceOSuv

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 5 IoCs
  • Executes dropped EXE 4 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 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 2 IoCs
  • Suspicious behavior: SetClipboardViewer 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 62 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\26e4c2040af6ee16a1794c86220f5249743ec9c9ceee933645331c1e54ebcca6_JC.exe
    "C:\Users\Admin\AppData\Local\Temp\26e4c2040af6ee16a1794c86220f5249743ec9c9ceee933645331c1e54ebcca6_JC.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2768
    • C:\Users\Admin\AppData\Local\Temp\26e4c2040af6ee16a1794c86220f5249743ec9c9ceee933645331c1e54ebcca6_JC.exe
      "C:\Users\Admin\AppData\Local\Temp\26e4c2040af6ee16a1794c86220f5249743ec9c9ceee933645331c1e54ebcca6_JC.exe"
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:2828
      • C:\Users\Admin\AppData\Roaming\utchmann.exe
        "C:\Users\Admin\AppData\Roaming\utchmann.exe"
        3⤵
        • Executes dropped EXE
        • Accesses Microsoft Outlook profiles
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: SetClipboardViewer
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        • outlook_office_path
        • outlook_win_path
        PID:2516
    • 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:2564
      • C:\Users\Admin\AppData\Local\Temp\svchost.exe
        "C:\Users\Admin\AppData\Local\Temp\svchost.exe"
        3⤵
        • Executes dropped EXE
        PID:2264
      • 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:2116
        • 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:2124
          • 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:1508
        • C:\Windows\SysWOW64\cmd.exe
          "cmd" /c mkdir "C:\Users\Admin\AppData\Roaming\avast"
          3⤵
            PID:2120
        • C:\Windows\SysWOW64\cmd.exe
          "cmd" /c mkdir "C:\Users\Admin\AppData\Roaming\svchost"
          2⤵
            PID:824
          • 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:2860
            • 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:3024
          • C:\Windows\SysWOW64\cmd.exe
            "cmd" /c copy "C:\Users\Admin\AppData\Local\Temp\26e4c2040af6ee16a1794c86220f5249743ec9c9ceee933645331c1e54ebcca6_JC.exe" "C:\Users\Admin\AppData\Roaming\svchost\svchost.exe"
            2⤵
              PID:2904
          • C:\Windows\system32\taskeng.exe
            taskeng.exe {6E93FD39-3685-4A18-82C7-5339CF609300} S-1-5-21-3513876443-2771975297-1923446376-1000:GPFFWLPI\Admin:Interactive:[1]
            1⤵
            • Suspicious use of WriteProcessMemory
            PID:2224
            • C:\Users\Admin\AppData\Roaming\avast\avast.exe
              C:\Users\Admin\AppData\Roaming\avast\avast.exe
              2⤵
              • Executes dropped EXE
              PID:568

          Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          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\avast\avast.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\utchmann.exe

            Filesize

            247KB

            MD5

            9b6f64d454ad8d3e91d6827a0262ca58

            SHA1

            95ad850c587f28410d390e5076ed7cbd89e19cc1

            SHA256

            3f645d2746e16d3444423afc3a11a5ef43c095164ffd117d59e820e0123cccdc

            SHA512

            5e2415bd0ee435056ca98ae62de2b3c8061abf403530d50dd46bc516d1dd120ca69e32cdc90a83e67fc4b0c55c8e6e98694d07dfe2620fa2e728e4c95e731be0

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

            Filesize

            247KB

            MD5

            9b6f64d454ad8d3e91d6827a0262ca58

            SHA1

            95ad850c587f28410d390e5076ed7cbd89e19cc1

            SHA256

            3f645d2746e16d3444423afc3a11a5ef43c095164ffd117d59e820e0123cccdc

            SHA512

            5e2415bd0ee435056ca98ae62de2b3c8061abf403530d50dd46bc516d1dd120ca69e32cdc90a83e67fc4b0c55c8e6e98694d07dfe2620fa2e728e4c95e731be0

          • \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\utchmann.exe

            Filesize

            247KB

            MD5

            9b6f64d454ad8d3e91d6827a0262ca58

            SHA1

            95ad850c587f28410d390e5076ed7cbd89e19cc1

            SHA256

            3f645d2746e16d3444423afc3a11a5ef43c095164ffd117d59e820e0123cccdc

            SHA512

            5e2415bd0ee435056ca98ae62de2b3c8061abf403530d50dd46bc516d1dd120ca69e32cdc90a83e67fc4b0c55c8e6e98694d07dfe2620fa2e728e4c95e731be0

          • memory/568-71-0x0000000001210000-0x00000000012B2000-memory.dmp

            Filesize

            648KB

          • memory/2264-56-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

            Filesize

            4KB

          • memory/2264-67-0x0000000074440000-0x0000000074B2E000-memory.dmp

            Filesize

            6.9MB

          • memory/2264-58-0x0000000000400000-0x0000000000418000-memory.dmp

            Filesize

            96KB

          • memory/2264-51-0x0000000000400000-0x0000000000418000-memory.dmp

            Filesize

            96KB

          • memory/2264-49-0x0000000000400000-0x0000000000418000-memory.dmp

            Filesize

            96KB

          • memory/2264-62-0x0000000000400000-0x0000000000418000-memory.dmp

            Filesize

            96KB

          • memory/2264-55-0x0000000000400000-0x0000000000418000-memory.dmp

            Filesize

            96KB

          • memory/2264-66-0x0000000000400000-0x0000000000418000-memory.dmp

            Filesize

            96KB

          • memory/2264-53-0x0000000000400000-0x0000000000418000-memory.dmp

            Filesize

            96KB

          • memory/2264-68-0x0000000004860000-0x00000000048A0000-memory.dmp

            Filesize

            256KB

          • memory/2516-33-0x0000000074440000-0x0000000074B2E000-memory.dmp

            Filesize

            6.9MB

          • memory/2516-39-0x00000000048A0000-0x00000000048E0000-memory.dmp

            Filesize

            256KB

          • memory/2516-36-0x0000000001080000-0x00000000010C4000-memory.dmp

            Filesize

            272KB

          • memory/2516-46-0x00000000048A0000-0x00000000048E0000-memory.dmp

            Filesize

            256KB

          • memory/2516-43-0x0000000074440000-0x0000000074B2E000-memory.dmp

            Filesize

            6.9MB

          • memory/2564-37-0x0000000004B00000-0x0000000004B40000-memory.dmp

            Filesize

            256KB

          • memory/2564-34-0x0000000074440000-0x0000000074B2E000-memory.dmp

            Filesize

            6.9MB

          • memory/2564-47-0x0000000000310000-0x000000000033C000-memory.dmp

            Filesize

            176KB

          • memory/2564-61-0x0000000074440000-0x0000000074B2E000-memory.dmp

            Filesize

            6.9MB

          • memory/2564-44-0x0000000074440000-0x0000000074B2E000-memory.dmp

            Filesize

            6.9MB

          • memory/2564-45-0x0000000004B00000-0x0000000004B40000-memory.dmp

            Filesize

            256KB

          • memory/2564-35-0x0000000000EB0000-0x0000000000F52000-memory.dmp

            Filesize

            648KB

          • memory/2768-0-0x0000000000DC0000-0x0000000000F10000-memory.dmp

            Filesize

            1.3MB

          • memory/2768-42-0x0000000074440000-0x0000000074B2E000-memory.dmp

            Filesize

            6.9MB

          • memory/2768-1-0x0000000074440000-0x0000000074B2E000-memory.dmp

            Filesize

            6.9MB

          • memory/2768-2-0x0000000000930000-0x0000000000970000-memory.dmp

            Filesize

            256KB

          • memory/2768-3-0x0000000074440000-0x0000000074B2E000-memory.dmp

            Filesize

            6.9MB

          • memory/2768-4-0x0000000000930000-0x0000000000970000-memory.dmp

            Filesize

            256KB

          • memory/2768-5-0x0000000005090000-0x00000000051F0000-memory.dmp

            Filesize

            1.4MB

          • memory/2828-12-0x0000000000400000-0x0000000000466000-memory.dmp

            Filesize

            408KB

          • memory/2828-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

            Filesize

            4KB

          • memory/2828-9-0x0000000000400000-0x0000000000466000-memory.dmp

            Filesize

            408KB

          • memory/2828-8-0x0000000000400000-0x0000000000466000-memory.dmp

            Filesize

            408KB

          • memory/2828-7-0x0000000000400000-0x0000000000466000-memory.dmp

            Filesize

            408KB

          • memory/2828-6-0x0000000000400000-0x0000000000466000-memory.dmp

            Filesize

            408KB

          • memory/2828-38-0x0000000074440000-0x0000000074B2E000-memory.dmp

            Filesize

            6.9MB

          • memory/2828-15-0x0000000000400000-0x0000000000466000-memory.dmp

            Filesize

            408KB

          • memory/2828-17-0x0000000000400000-0x0000000000466000-memory.dmp

            Filesize

            408KB

          • memory/2828-18-0x0000000000240000-0x0000000000248000-memory.dmp

            Filesize

            32KB

          • memory/2828-19-0x0000000074440000-0x0000000074B2E000-memory.dmp

            Filesize

            6.9MB