Analysis

  • max time kernel
    91s
  • max time network
    124s
  • platform
    windows10_x64
  • resource
    win10v20210410
  • submitted
    27-07-2021 13:06

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 2 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 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 11 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:3016
    • C:\Users\Admin\AppData\Local\Temp\TT COPY.exe
      "C:\Users\Admin\AppData\Local\Temp\TT COPY.exe"
      2⤵
        PID:2868
      • 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:3052

    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/3016-123-0x0000000004E90000-0x0000000004E9F000-memory.dmp
      Filesize

      60KB

    • memory/3016-116-0x00000000051D0000-0x00000000051D1000-memory.dmp
      Filesize

      4KB

    • memory/3016-118-0x0000000004E10000-0x0000000004E11000-memory.dmp
      Filesize

      4KB

    • memory/3016-119-0x0000000004F30000-0x0000000004F31000-memory.dmp
      Filesize

      4KB

    • memory/3016-120-0x0000000004D20000-0x0000000004D21000-memory.dmp
      Filesize

      4KB

    • memory/3016-121-0x0000000004FF0000-0x0000000005058000-memory.dmp
      Filesize

      416KB

    • memory/3016-117-0x0000000004D70000-0x0000000004D71000-memory.dmp
      Filesize

      4KB

    • memory/3016-114-0x0000000000420000-0x0000000000421000-memory.dmp
      Filesize

      4KB

    • memory/3016-122-0x0000000004CD0000-0x00000000051CE000-memory.dmp
      Filesize

      5.0MB

    • memory/3052-125-0x000000000043760E-mapping.dmp
    • memory/3052-124-0x0000000000400000-0x000000000043C000-memory.dmp
      Filesize

      240KB

    • memory/3052-131-0x0000000004FB0000-0x0000000004FB1000-memory.dmp
      Filesize

      4KB

    • memory/3052-132-0x0000000005080000-0x0000000005081000-memory.dmp
      Filesize

      4KB

    • memory/3052-133-0x0000000005BF0000-0x0000000005BF1000-memory.dmp
      Filesize

      4KB

    • memory/3052-135-0x00000000054B0000-0x00000000054B1000-memory.dmp
      Filesize

      4KB