Resubmissions

10-10-2024 13:12

241010-qf1messepr 10

10-10-2024 13:01

241010-p9cxsasbnq 10

Analysis

  • max time kernel
    402s
  • max time network
    405s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10-10-2024 13:12

General

  • Target

    malw.exe

  • Size

    140KB

  • MD5

    96e3199894c0e1587a143026ba490e54

  • SHA1

    d364baa5afffe030989688434d3dce88b755177a

  • SHA256

    a69e65e847d66ab098c9b26431b59905f4e7d24e1b551c281e3b55af2256ac40

  • SHA512

    78f41edb28e6db89076a97ff6b246ef766add775dbb76ced2ca188be378f58148b5c64ca386127f76826daddfb2109c2cc8f5283b47af14305b94513d0628e5a

  • SSDEEP

    1536:sN5e0HBt6RbrB9B6xwpPhuWWN252M3CEF/7GmqbMY7usiY9hk6:sN5e0XwbrHUxwtDc2t7GmCMY7pdk6

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\malw.exe
    "C:\Users\Admin\AppData\Local\Temp\malw.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2252
    • 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:4320

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/2252-5-0x00000000752A0000-0x0000000075A50000-memory.dmp

    Filesize

    7.7MB

  • memory/2252-1-0x0000000000820000-0x000000000083E000-memory.dmp

    Filesize

    120KB

  • memory/2252-2-0x00000000752A0000-0x0000000075A50000-memory.dmp

    Filesize

    7.7MB

  • memory/2252-0-0x00000000752AE000-0x00000000752AF000-memory.dmp

    Filesize

    4KB

  • memory/4320-7-0x00000000055D0000-0x0000000005B74000-memory.dmp

    Filesize

    5.6MB

  • memory/4320-6-0x00000000752A0000-0x0000000075A50000-memory.dmp

    Filesize

    7.7MB

  • memory/4320-3-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/4320-9-0x00000000752A0000-0x0000000075A50000-memory.dmp

    Filesize

    7.7MB

  • memory/4320-8-0x0000000005130000-0x0000000005196000-memory.dmp

    Filesize

    408KB

  • memory/4320-10-0x0000000006060000-0x00000000060B0000-memory.dmp

    Filesize

    320KB

  • memory/4320-11-0x0000000006150000-0x00000000061E2000-memory.dmp

    Filesize

    584KB

  • memory/4320-12-0x00000000060E0000-0x00000000060EA000-memory.dmp

    Filesize

    40KB

  • memory/4320-13-0x00000000752A0000-0x0000000075A50000-memory.dmp

    Filesize

    7.7MB