Analysis

  • max time kernel
    45s
  • max time network
    43s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    20-05-2022 07:26

General

  • Target

    d32c5920ed9458d43b110e3ed34a54d617e173c76f5841003570a8c9ac95f75d.exe

  • Size

    1.3MB

  • MD5

    f8d29431dde6dd65e034b99c29ce9c64

  • SHA1

    0c23620a0070f37794b895c35d7afe1de83bc36f

  • SHA256

    d32c5920ed9458d43b110e3ed34a54d617e173c76f5841003570a8c9ac95f75d

  • SHA512

    844d18e3694ba0ef27c80bfc7a5638cf221559a4fa7e32383e84e9e0b095bdb342cc751ef8e2f39f6b95d438707bbb083434f753d00dbb2fafb5bd666ab6caae

Malware Config

Signatures

  • AgentTesla

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

  • AgentTesla Payload 4 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 3 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 9 IoCs
  • Suspicious use of WriteProcessMemory 22 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d32c5920ed9458d43b110e3ed34a54d617e173c76f5841003570a8c9ac95f75d.exe
    "C:\Users\Admin\AppData\Local\Temp\d32c5920ed9458d43b110e3ed34a54d617e173c76f5841003570a8c9ac95f75d.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:304
    • C:\Users\Admin\AppData\Roaming\Syqcaa.exe
      "C:\Users\Admin\AppData\Roaming\Syqcaa.exe"
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:1324
      • C:\Windows\SysWOW64\TapiUnattend.exe
        "C:\Windows\System32\TapiUnattend.exe"
        3⤵
          PID:1176
        • C:\Windows\SysWOW64\sxstrace.exe
          "C:\Windows\System32\sxstrace.exe"
          3⤵
            PID:1716
          • C:\Users\Admin\AppData\Roaming\Syqcaa.exe
            "C:\Users\Admin\AppData\Roaming\Syqcaa.exe"
            3⤵
            • Executes dropped EXE
            PID:1300

      Network

      MITRE ATT&CK Matrix ATT&CK v6

      Persistence

      Registry Run Keys / Startup Folder

      1
      T1060

      Defense Evasion

      Modify Registry

      1
      T1112

      Discovery

      System Information Discovery

      1
      T1082

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Roaming\Syq.bmp
        Filesize

        1.1MB

        MD5

        5d801ad9e4e0968882610093c2da99e4

        SHA1

        d571efc92376e42b2d52990b46ac56301efe53eb

        SHA256

        01b6cc5ce5fefee474567d6976a6f1e16bfb7b04b284e1ad016628470a6ea64d

        SHA512

        dedf3341c2102a8fe89d52d428a4462133e33f1a9342a308af3262c89292bcf9ac49ac7136a9bcf9c01728f4c6a7d62c3aa8ef1be630c4f5f4ae55a72de37465

      • C:\Users\Admin\AppData\Roaming\Syqcaa.exe
        Filesize

        489KB

        MD5

        86788fb5973f81acb9f960562056b4e0

        SHA1

        649fe2ceeddb5176c9ecf42e9988974b4d6dfa9d

        SHA256

        ad1c0fcad688cb96556b2794627851defb6ca697e4445d908d69472053aa28e4

        SHA512

        f492aff12e080eb7f5d36004b10e28c5a4b184f538ad0d68597d85883dc73c59625653aa79034aec83ccd3c4c2ba8112024ade760606f6c1c64b385f8f3e065b

      • C:\Users\Admin\AppData\Roaming\Syqcaa.exe
        Filesize

        489KB

        MD5

        86788fb5973f81acb9f960562056b4e0

        SHA1

        649fe2ceeddb5176c9ecf42e9988974b4d6dfa9d

        SHA256

        ad1c0fcad688cb96556b2794627851defb6ca697e4445d908d69472053aa28e4

        SHA512

        f492aff12e080eb7f5d36004b10e28c5a4b184f538ad0d68597d85883dc73c59625653aa79034aec83ccd3c4c2ba8112024ade760606f6c1c64b385f8f3e065b

      • C:\Users\Admin\AppData\Roaming\Syqcaa.exe
        Filesize

        489KB

        MD5

        86788fb5973f81acb9f960562056b4e0

        SHA1

        649fe2ceeddb5176c9ecf42e9988974b4d6dfa9d

        SHA256

        ad1c0fcad688cb96556b2794627851defb6ca697e4445d908d69472053aa28e4

        SHA512

        f492aff12e080eb7f5d36004b10e28c5a4b184f538ad0d68597d85883dc73c59625653aa79034aec83ccd3c4c2ba8112024ade760606f6c1c64b385f8f3e065b

      • \Users\Admin\AppData\Roaming\Syqcaa.exe
        Filesize

        489KB

        MD5

        86788fb5973f81acb9f960562056b4e0

        SHA1

        649fe2ceeddb5176c9ecf42e9988974b4d6dfa9d

        SHA256

        ad1c0fcad688cb96556b2794627851defb6ca697e4445d908d69472053aa28e4

        SHA512

        f492aff12e080eb7f5d36004b10e28c5a4b184f538ad0d68597d85883dc73c59625653aa79034aec83ccd3c4c2ba8112024ade760606f6c1c64b385f8f3e065b

      • \Users\Admin\AppData\Roaming\Syqcaa.exe
        Filesize

        489KB

        MD5

        86788fb5973f81acb9f960562056b4e0

        SHA1

        649fe2ceeddb5176c9ecf42e9988974b4d6dfa9d

        SHA256

        ad1c0fcad688cb96556b2794627851defb6ca697e4445d908d69472053aa28e4

        SHA512

        f492aff12e080eb7f5d36004b10e28c5a4b184f538ad0d68597d85883dc73c59625653aa79034aec83ccd3c4c2ba8112024ade760606f6c1c64b385f8f3e065b

      • \Users\Admin\AppData\Roaming\Syqcaa.exe
        Filesize

        489KB

        MD5

        86788fb5973f81acb9f960562056b4e0

        SHA1

        649fe2ceeddb5176c9ecf42e9988974b4d6dfa9d

        SHA256

        ad1c0fcad688cb96556b2794627851defb6ca697e4445d908d69472053aa28e4

        SHA512

        f492aff12e080eb7f5d36004b10e28c5a4b184f538ad0d68597d85883dc73c59625653aa79034aec83ccd3c4c2ba8112024ade760606f6c1c64b385f8f3e065b

      • memory/304-54-0x0000000075311000-0x0000000075313000-memory.dmp
        Filesize

        8KB

      • memory/1176-62-0x0000000000400000-0x0000000000455000-memory.dmp
        Filesize

        340KB

      • memory/1176-64-0x0000000000400000-0x0000000000455000-memory.dmp
        Filesize

        340KB

      • memory/1176-65-0x0000000000454200-mapping.dmp
      • memory/1300-73-0x0000000000454200-mapping.dmp
      • memory/1324-58-0x0000000000000000-mapping.dmp
      • memory/1716-69-0x0000000000454200-mapping.dmp