Analysis

  • max time kernel
    145s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20230831-en
  • resource tags

    arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
  • submitted
    27-09-2023 16:04

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 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 2 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\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:1728
    • 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:2764
      • 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 use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        • outlook_office_path
        • outlook_win_path
        PID:2252
    • 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:2672
      • C:\Users\Admin\AppData\Local\Temp\svchost.exe
        "C:\Users\Admin\AppData\Local\Temp\svchost.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: SetClipboardViewer
        PID:2172
      • C:\Windows\SysWOW64\cmd.exe
        "cmd" /c mkdir "C:\Users\Admin\AppData\Roaming\avast"
        3⤵
          PID:2552
        • 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:1036
          • 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:1256
        • 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:2580
        • C:\Windows\SysWOW64\cmd.exe
          "cmd" /c mkdir "C:\Users\Admin\AppData\Roaming\svchost"
          2⤵
            PID:1052
          • 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:2416
            • 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:680
          • 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:2996
          • C:\Windows\system32\taskeng.exe
            taskeng.exe {BB0328EA-9A7D-4F90-923A-970E87D4A804} S-1-5-21-86725733-3001458681-3405935542-1000:ZWKQHIWB\Admin:Interactive:[1]
            1⤵
            • Suspicious use of WriteProcessMemory
            PID:2084
            • C:\Users\Admin\AppData\Roaming\avast\avast.exe
              C:\Users\Admin\AppData\Roaming\avast\avast.exe
              2⤵
              • Executes dropped EXE
              • Suspicious use of SetThreadContext
              • Suspicious use of WriteProcessMemory
              PID:2928
              • C:\Users\Admin\AppData\Roaming\avast\avast.exe
                "C:\Users\Admin\AppData\Roaming\avast\avast.exe"
                3⤵
                • Executes dropped EXE
                • Suspicious behavior: SetClipboardViewer
                PID:2324
              • C:\Windows\SysWOW64\cmd.exe
                "cmd" /c mkdir "C:\Users\Admin\AppData\Roaming\avast"
                3⤵
                  PID:844
                • 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⤵
                    PID:1796
                    • 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:1788
                  • C:\Windows\SysWOW64\cmd.exe
                    "cmd" /c copy "C:\Users\Admin\AppData\Roaming\avast\avast.exe" "C:\Users\Admin\AppData\Roaming\avast\avast.exe"
                    3⤵
                      PID:792
                  • C:\Users\Admin\AppData\Roaming\avast\avast.exe
                    C:\Users\Admin\AppData\Roaming\avast\avast.exe
                    2⤵
                    • Executes dropped EXE
                    PID:2016

                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\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\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/1728-2-0x00000000048D0000-0x0000000004910000-memory.dmp

                  Filesize

                  256KB

                • memory/1728-1-0x00000000746D0000-0x0000000074DBE000-memory.dmp

                  Filesize

                  6.9MB

                • memory/1728-5-0x0000000005150000-0x00000000052B0000-memory.dmp

                  Filesize

                  1.4MB

                • memory/1728-0-0x0000000000D00000-0x0000000000E50000-memory.dmp

                  Filesize

                  1.3MB

                • memory/1728-4-0x00000000048D0000-0x0000000004910000-memory.dmp

                  Filesize

                  256KB

                • memory/1728-3-0x00000000746D0000-0x0000000074DBE000-memory.dmp

                  Filesize

                  6.9MB

                • memory/1728-42-0x00000000746D0000-0x0000000074DBE000-memory.dmp

                  Filesize

                  6.9MB

                • memory/2016-109-0x00000000004C0000-0x0000000000500000-memory.dmp

                  Filesize

                  256KB

                • memory/2016-108-0x00000000746D0000-0x0000000074DBE000-memory.dmp

                  Filesize

                  6.9MB

                • memory/2172-56-0x0000000000400000-0x0000000000418000-memory.dmp

                  Filesize

                  96KB

                • memory/2172-73-0x0000000004B80000-0x0000000004BC0000-memory.dmp

                  Filesize

                  256KB

                • memory/2172-67-0x0000000000400000-0x0000000000418000-memory.dmp

                  Filesize

                  96KB

                • memory/2172-71-0x0000000004B80000-0x0000000004BC0000-memory.dmp

                  Filesize

                  256KB

                • memory/2172-72-0x00000000746D0000-0x0000000074DBE000-memory.dmp

                  Filesize

                  6.9MB

                • memory/2172-64-0x0000000000400000-0x0000000000418000-memory.dmp

                  Filesize

                  96KB

                • memory/2172-61-0x0000000000400000-0x0000000000418000-memory.dmp

                  Filesize

                  96KB

                • memory/2172-59-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

                  Filesize

                  4KB

                • memory/2172-58-0x0000000000400000-0x0000000000418000-memory.dmp

                  Filesize

                  96KB

                • memory/2172-70-0x00000000746D0000-0x0000000074DBE000-memory.dmp

                  Filesize

                  6.9MB

                • memory/2172-54-0x0000000000400000-0x0000000000418000-memory.dmp

                  Filesize

                  96KB

                • memory/2172-52-0x0000000000400000-0x0000000000418000-memory.dmp

                  Filesize

                  96KB

                • memory/2252-45-0x00000000049E0000-0x0000000004A20000-memory.dmp

                  Filesize

                  256KB

                • memory/2252-49-0x00000000049E0000-0x0000000004A20000-memory.dmp

                  Filesize

                  256KB

                • memory/2252-47-0x00000000746D0000-0x0000000074DBE000-memory.dmp

                  Filesize

                  6.9MB

                • memory/2252-39-0x0000000000840000-0x0000000000884000-memory.dmp

                  Filesize

                  272KB

                • memory/2252-38-0x00000000746D0000-0x0000000074DBE000-memory.dmp

                  Filesize

                  6.9MB

                • memory/2324-105-0x00000000746D0000-0x0000000074DBE000-memory.dmp

                  Filesize

                  6.9MB

                • memory/2324-104-0x0000000004860000-0x00000000048A0000-memory.dmp

                  Filesize

                  256KB

                • memory/2324-102-0x00000000746D0000-0x0000000074DBE000-memory.dmp

                  Filesize

                  6.9MB

                • memory/2324-98-0x0000000000080000-0x0000000000098000-memory.dmp

                  Filesize

                  96KB

                • memory/2324-101-0x0000000000080000-0x0000000000098000-memory.dmp

                  Filesize

                  96KB

                • memory/2324-89-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

                  Filesize

                  4KB

                • memory/2324-94-0x0000000000080000-0x0000000000098000-memory.dmp

                  Filesize

                  96KB

                • memory/2324-106-0x0000000004860000-0x00000000048A0000-memory.dmp

                  Filesize

                  256KB

                • memory/2672-40-0x0000000000930000-0x0000000000970000-memory.dmp

                  Filesize

                  256KB

                • memory/2672-34-0x00000000746D0000-0x0000000074DBE000-memory.dmp

                  Filesize

                  6.9MB

                • memory/2672-65-0x00000000746D0000-0x0000000074DBE000-memory.dmp

                  Filesize

                  6.9MB

                • memory/2672-50-0x0000000000420000-0x000000000044C000-memory.dmp

                  Filesize

                  176KB

                • memory/2672-48-0x0000000000930000-0x0000000000970000-memory.dmp

                  Filesize

                  256KB

                • memory/2672-46-0x00000000746D0000-0x0000000074DBE000-memory.dmp

                  Filesize

                  6.9MB

                • memory/2672-30-0x0000000001260000-0x0000000001302000-memory.dmp

                  Filesize

                  648KB

                • memory/2764-41-0x00000000746D0000-0x0000000074DBE000-memory.dmp

                  Filesize

                  6.9MB

                • memory/2764-22-0x00000000003F0000-0x00000000003F8000-memory.dmp

                  Filesize

                  32KB

                • memory/2764-18-0x0000000000400000-0x0000000000466000-memory.dmp

                  Filesize

                  408KB

                • memory/2764-20-0x0000000000400000-0x0000000000466000-memory.dmp

                  Filesize

                  408KB

                • memory/2764-6-0x0000000000400000-0x0000000000466000-memory.dmp

                  Filesize

                  408KB

                • memory/2764-15-0x0000000000400000-0x0000000000466000-memory.dmp

                  Filesize

                  408KB

                • memory/2764-8-0x0000000000400000-0x0000000000466000-memory.dmp

                  Filesize

                  408KB

                • memory/2764-10-0x0000000000400000-0x0000000000466000-memory.dmp

                  Filesize

                  408KB

                • memory/2764-12-0x0000000000400000-0x0000000000466000-memory.dmp

                  Filesize

                  408KB

                • memory/2764-21-0x00000000746D0000-0x0000000074DBE000-memory.dmp

                  Filesize

                  6.9MB

                • memory/2764-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

                  Filesize

                  4KB

                • memory/2928-76-0x00000000746D0000-0x0000000074DBE000-memory.dmp

                  Filesize

                  6.9MB

                • memory/2928-103-0x00000000746D0000-0x0000000074DBE000-memory.dmp

                  Filesize

                  6.9MB

                • memory/2928-78-0x0000000000280000-0x00000000002C0000-memory.dmp

                  Filesize

                  256KB

                • memory/2928-77-0x0000000000BC0000-0x0000000000C62000-memory.dmp

                  Filesize

                  648KB

                • memory/2928-80-0x0000000000280000-0x00000000002C0000-memory.dmp

                  Filesize

                  256KB

                • memory/2928-79-0x00000000746D0000-0x0000000074DBE000-memory.dmp

                  Filesize

                  6.9MB