Analysis

  • max time kernel
    95s
  • max time network
    70s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    27-07-2021 14:05

General

  • Target

    TT COPY.exe

  • Size

    988KB

  • MD5

    197e571bfcf3f22816e245fef4f86b4f

  • SHA1

    60df9b31aeb301c4c480da58f75be14d775cb604

  • SHA256

    fc22aaa35e5504461dd5ace02d041f7715bc25acf329d2070e02e854b54d4de0

  • SHA512

    f7bc869cae343ee6dc5230d54eb6e775490733df911e36e3427dda88b75d240131ff8c1bd0e23d6f93c28e4691566cc90a2c092111f9d38b241365d3f483558a

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    us2.smtp.mailhostbox.com
  • Port:
    587
  • Username:
    paola.micheli@copangroup.xyz
  • Password:
    gibson.1990

Signatures

  • AgentTesla

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

  • AgentTesla Payload 3 IoCs
  • Drops file in Drivers directory 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.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\TT COPY.exe
    "C:\Users\Admin\AppData\Local\Temp\TT COPY.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:652
    • C:\Users\Admin\AppData\Local\Temp\TT COPY.exe
      "C:\Users\Admin\AppData\Local\Temp\TT COPY.exe"
      2⤵
        PID:3500
      • C:\Users\Admin\AppData\Local\Temp\TT COPY.exe
        "C:\Users\Admin\AppData\Local\Temp\TT COPY.exe"
        2⤵
          PID:3784
        • C:\Users\Admin\AppData\Local\Temp\TT COPY.exe
          "C:\Users\Admin\AppData\Local\Temp\TT COPY.exe"
          2⤵
          • Drops file in Drivers directory
          • Adds Run key to start application
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:4028

      Network

      MITRE ATT&CK Matrix ATT&CK v6

      Persistence

      Registry Run Keys / Startup Folder

      1
      T1060

      Defense Evasion

      Modify Registry

      1
      T1112

      Credential Access

      Credentials in Files

      3
      T1081

      Collection

      Data from Local System

      3
      T1005

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\TT COPY.exe.log
        MD5

        a31dce488913906093df2ebc9493f627

        SHA1

        70873fcb856c1614fd605128e926229b04c838d7

        SHA256

        7795df31e5563550e636a862760067408a3bd84f7c258376895f58d55cd6aebd

        SHA512

        5a0913b1d03510b58a9596d718c975cfdf3e9d570460caed07acebf5a4b19cf1cf729f2d4a1a33c832a761028030cf05da8dee5c34a4120b22f55a5f6d26c495

      • memory/652-123-0x00000000056C0000-0x00000000056CF000-memory.dmp
        Filesize

        60KB

      • memory/652-116-0x0000000005BF0000-0x0000000005BF1000-memory.dmp
        Filesize

        4KB

      • memory/652-118-0x0000000005790000-0x0000000005791000-memory.dmp
        Filesize

        4KB

      • memory/652-119-0x0000000005810000-0x0000000005811000-memory.dmp
        Filesize

        4KB

      • memory/652-120-0x0000000005620000-0x00000000056BC000-memory.dmp
        Filesize

        624KB

      • memory/652-121-0x0000000005660000-0x0000000005661000-memory.dmp
        Filesize

        4KB

      • memory/652-117-0x00000000056F0000-0x00000000056F1000-memory.dmp
        Filesize

        4KB

      • memory/652-114-0x0000000000D70000-0x0000000000D71000-memory.dmp
        Filesize

        4KB

      • memory/652-122-0x0000000005950000-0x00000000059B8000-memory.dmp
        Filesize

        416KB

      • memory/4028-125-0x000000000043760E-mapping.dmp
      • memory/4028-124-0x0000000000400000-0x000000000043C000-memory.dmp
        Filesize

        240KB

      • memory/4028-131-0x00000000050D0000-0x00000000055CE000-memory.dmp
        Filesize

        4MB

      • memory/4028-132-0x00000000055A0000-0x00000000055A1000-memory.dmp
        Filesize

        4KB

      • memory/4028-133-0x0000000005E30000-0x0000000005E31000-memory.dmp
        Filesize

        4KB

      • memory/4028-135-0x0000000000F30000-0x0000000000F31000-memory.dmp
        Filesize

        4KB