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Analysis

  • max time kernel
    148s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    18/05/2023, 02:01

General

  • Target

    recibo de pago OC456337.jpg.exe

  • Size

    592KB

  • MD5

    3461fd2c8482af651b818f61dd049e42

  • SHA1

    b4dc69de92f2cf210c615e6ec506d3a1d21aa777

  • SHA256

    3a33384b0027c321a9643ba9428d7227aa6b4401e3882f91cc93539590500411

  • SHA512

    d18de0295cacc0286b65eb90202b8f0d4cedf233e552c4c13e48b092014ddb2a955203a0d6f8fa080388cd384703c75ad8a029cf1e5378559a5e5ec827655bcc

  • SSDEEP

    12288:Cf2iNeUDMY+SnwYmTzsht19PL3MyE+q8IZroJWURe/hN2dVzXYt:Cf1AUDX+RFshbJ8yE+iFoJWEeZN2dxY

Malware Config

Extracted

Family

agenttesla

Credentials

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
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\recibo de pago OC456337.jpg.exe
    "C:\Users\Admin\AppData\Local\Temp\recibo de pago OC456337.jpg.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1008
    • C:\Users\Admin\AppData\Local\Temp\recibo de pago OC456337.jpg.exe
      "C:\Users\Admin\AppData\Local\Temp\recibo de pago OC456337.jpg.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:3836

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\recibo de pago OC456337.jpg.exe.log

    Filesize

    1KB

    MD5

    8ec831f3e3a3f77e4a7b9cd32b48384c

    SHA1

    d83f09fd87c5bd86e045873c231c14836e76a05c

    SHA256

    7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

    SHA512

    26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

  • memory/1008-139-0x0000000006980000-0x0000000006A1C000-memory.dmp

    Filesize

    624KB

  • memory/1008-135-0x0000000004D10000-0x0000000004DA2000-memory.dmp

    Filesize

    584KB

  • memory/1008-136-0x0000000004EA0000-0x0000000004EB0000-memory.dmp

    Filesize

    64KB

  • memory/1008-137-0x0000000004CE0000-0x0000000004CEA000-memory.dmp

    Filesize

    40KB

  • memory/1008-138-0x0000000004EA0000-0x0000000004EB0000-memory.dmp

    Filesize

    64KB

  • memory/1008-133-0x00000000002A0000-0x000000000033A000-memory.dmp

    Filesize

    616KB

  • memory/1008-134-0x00000000052C0000-0x0000000005864000-memory.dmp

    Filesize

    5.6MB

  • memory/3836-140-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/3836-143-0x0000000005870000-0x00000000058D6000-memory.dmp

    Filesize

    408KB

  • memory/3836-144-0x00000000057C0000-0x00000000057D0000-memory.dmp

    Filesize

    64KB

  • memory/3836-145-0x0000000006A60000-0x0000000006AB0000-memory.dmp

    Filesize

    320KB

  • memory/3836-146-0x0000000006DC0000-0x0000000006F82000-memory.dmp

    Filesize

    1.8MB

  • memory/3836-147-0x00000000057C0000-0x00000000057D0000-memory.dmp

    Filesize

    64KB