Analysis

  • max time kernel
    148s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240910-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240910-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25-09-2024 16:35

General

  • Target

    Confirmación de pago_shrunk.exe

  • Size

    204KB

  • MD5

    5f249a857aa4ec0d7811cbe49b1eac0e

  • SHA1

    9bc2fed4cf1f677c009ba9c0c224e15a07ee8dd4

  • SHA256

    e97a53902ccc623ff61147e3b7cb7e9abf77e8a61a401a317891ffaf73a7338a

  • SHA512

    021890218f651a97b7f2d3a490def666e3a70a55e40355a91ce912eaff80c60728a582128220d8ccc07653d6a131f6bef42892907153b6f25b52ecce22fbfc5c

  • SSDEEP

    1536:SD8LRJrCwGizMmnLU/lmOfsxdPTWQ7ZnbXnD630VD1:SQdJrCwG7Wo/lmOfsxdrWQFXWEVD1

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot6828335029:AAHOq6iD_8Eg5u6FhmWF0NHPcKj1jLGtRk4/

Signatures

  • AgentTesla

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

  • Reads WinSCP keys stored on the system 2 TTPs

    Tries to access WinSCP stored sessions.

  • 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 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Suspicious use of SetThreadContext 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Confirmación de pago_shrunk.exe
    "C:\Users\Admin\AppData\Local\Temp\Confirmación de pago_shrunk.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4680
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3836

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/3836-7-0x0000000005790000-0x0000000005D34000-memory.dmp

    Filesize

    5.6MB

  • memory/3836-3-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/3836-6-0x0000000075040000-0x00000000757F0000-memory.dmp

    Filesize

    7.7MB

  • memory/3836-8-0x0000000075040000-0x00000000757F0000-memory.dmp

    Filesize

    7.7MB

  • memory/3836-9-0x00000000053B0000-0x0000000005416000-memory.dmp

    Filesize

    408KB

  • memory/3836-10-0x0000000006250000-0x00000000062A0000-memory.dmp

    Filesize

    320KB

  • memory/3836-11-0x0000000006340000-0x00000000063D2000-memory.dmp

    Filesize

    584KB

  • memory/3836-12-0x00000000062D0000-0x00000000062DA000-memory.dmp

    Filesize

    40KB

  • memory/3836-13-0x0000000075040000-0x00000000757F0000-memory.dmp

    Filesize

    7.7MB

  • memory/4680-1-0x0000000000760000-0x0000000000782000-memory.dmp

    Filesize

    136KB

  • memory/4680-2-0x0000000075040000-0x00000000757F0000-memory.dmp

    Filesize

    7.7MB

  • memory/4680-5-0x0000000075040000-0x00000000757F0000-memory.dmp

    Filesize

    7.7MB

  • memory/4680-0-0x000000007504E000-0x000000007504F000-memory.dmp

    Filesize

    4KB