Resubmissions

22-09-2022 18:09

220922-wrr3bacbc5 10

21-09-2022 18:54

220921-xj9g3aghe3 10

Analysis

  • max time kernel
    97s
  • max time network
    84s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • submitted
    21-09-2022 18:54

General

  • Target

    Curr¡culum Vitae Rita.exe

  • Size

    1.0MB

  • MD5

    ec74c708001090117278d032f8342453

  • SHA1

    f34edd03b9072dff0cbc4bfbeff2c18b98a6933e

  • SHA256

    720d90ad498171d943399e010d4aa16cc65f69bbff6f042d6b364813cfd168bb

  • SHA512

    1c7a867bd4b29ac7f83b9a406e979bc3715561dfd4d65c4378a6d7c17c96745a915f1e7e4aee8de2a2b35dca0a2c7a2c1c7ed0d6e278d30377a21cde717fcbd4

  • SSDEEP

    12288:DBluwyS7oLFMrfbIT7TNIOEbRbNmu3ROUKCeKowyaqfpPWla:tlFEFMrEHpIdbcqRnKDKo1pP+a

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot5700681005:AAF2K-iQMsKRkqCcUgSZLmmugrKJcbb8Xg8/

Signatures

  • AgentTesla

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

  • 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
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Curr¡culum Vitae Rita.exe
    "C:\Users\Admin\AppData\Local\Temp\Curr¡culum Vitae Rita.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:900
    • C:\Users\Admin\AppData\Local\Temp\Curr¡culum Vitae Rita.exe
      "C:\Users\Admin\AppData\Local\Temp\Curr¡culum Vitae Rita.exe"
      2⤵
        PID:2000
      • C:\Users\Admin\AppData\Local\Temp\Curr¡culum Vitae Rita.exe
        "C:\Users\Admin\AppData\Local\Temp\Curr¡culum Vitae Rita.exe"
        2⤵
        • Accesses Microsoft Outlook profiles
        • Adds Run key to start application
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • outlook_office_path
        • outlook_win_path
        PID:1900

    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

    Email Collection

    1
    T1114

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/900-54-0x00000000012C0000-0x00000000013D0000-memory.dmp
      Filesize

      1.1MB

    • memory/900-55-0x0000000076121000-0x0000000076123000-memory.dmp
      Filesize

      8KB

    • memory/900-56-0x0000000000460000-0x0000000000474000-memory.dmp
      Filesize

      80KB

    • memory/900-57-0x0000000000470000-0x000000000047C000-memory.dmp
      Filesize

      48KB

    • memory/900-58-0x0000000006000000-0x0000000006094000-memory.dmp
      Filesize

      592KB

    • memory/900-59-0x0000000006090000-0x00000000060CA000-memory.dmp
      Filesize

      232KB

    • memory/1900-60-0x0000000000400000-0x000000000043A000-memory.dmp
      Filesize

      232KB

    • memory/1900-61-0x0000000000400000-0x000000000043A000-memory.dmp
      Filesize

      232KB

    • memory/1900-63-0x0000000000400000-0x000000000043A000-memory.dmp
      Filesize

      232KB

    • memory/1900-64-0x0000000000400000-0x000000000043A000-memory.dmp
      Filesize

      232KB

    • memory/1900-65-0x0000000000400000-0x000000000043A000-memory.dmp
      Filesize

      232KB

    • memory/1900-66-0x0000000000435AEE-mapping.dmp
    • memory/1900-70-0x0000000000400000-0x000000000043A000-memory.dmp
      Filesize

      232KB

    • memory/1900-68-0x0000000000400000-0x000000000043A000-memory.dmp
      Filesize

      232KB