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Analysis

  • max time kernel
    143s
  • max time network
    95s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04/09/2024, 18:03

General

  • Target

    PXfBQ0n8WFG2Vcw.exe

  • Size

    394KB

  • MD5

    bc9378c3c9b2e4d83b5769ee3e46ead6

  • SHA1

    4d39365b9d6c4b300026b353969325d520949424

  • SHA256

    f2eddde027c81d80d87e113655a5965d2ce36d39e9e6fd2b6c2a054308720690

  • SHA512

    0361c57f942c18ee17d0f412984b43e7e35c437bba1d62a317c16234c818863ea5381c47573d75cec57d983b272edbcef67839393365a54bee9ee138b6daca5a

  • SSDEEP

    6144:OxYAnYxtrZyubC7kRhGhD3wtfCMi7fF60TBjs86QLaGfSZOm+HT3ePGfp6/kJt8Y:OeAYxLbCPA1CModaoaGqZGH7yUDJVh3

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot1990818097:AAEwom4DVSnyX5nLZhtvlrvCnmzUsVj23cE/sendDocument

Signatures

  • AgentTesla

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

  • AgentTesla payload 1 IoCs
  • Credentials from Password Stores: Credentials from Web Browsers 1 TTPs

    Malicious Access or copy of Web Browser Credential store.

  • 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 2 TTPs

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

  • Unsecured Credentials: Credentials In Files 1 TTPs

    Steal credentials from unsecured files.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • 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 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\PXfBQ0n8WFG2Vcw.exe
    "C:\Users\Admin\AppData\Local\Temp\PXfBQ0n8WFG2Vcw.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4116
    • C:\Users\Admin\AppData\Local\Temp\PXfBQ0n8WFG2Vcw.exe
      "C:\Users\Admin\AppData\Local\Temp\PXfBQ0n8WFG2Vcw.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • outlook_office_path
      • outlook_win_path
      PID:4676

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\PXfBQ0n8WFG2Vcw.exe.log

    Filesize

    1KB

    MD5

    8ec831f3e3a3f77e4a7b9cd32b48384c

    SHA1

    d83f09fd87c5bd86e045873c231c14836e76a05c

    SHA256

    7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

    SHA512

    26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

  • memory/4116-12-0x0000000006E40000-0x0000000006EA0000-memory.dmp

    Filesize

    384KB

  • memory/4116-7-0x00000000744F0000-0x0000000074CA0000-memory.dmp

    Filesize

    7.7MB

  • memory/4116-3-0x0000000005A70000-0x0000000005B02000-memory.dmp

    Filesize

    584KB

  • memory/4116-4-0x0000000005A20000-0x0000000005A2A000-memory.dmp

    Filesize

    40KB

  • memory/4116-5-0x00000000744F0000-0x0000000074CA0000-memory.dmp

    Filesize

    7.7MB

  • memory/4116-6-0x00000000744F0000-0x0000000074CA0000-memory.dmp

    Filesize

    7.7MB

  • memory/4116-0-0x00000000744FE000-0x00000000744FF000-memory.dmp

    Filesize

    4KB

  • memory/4116-8-0x0000000009460000-0x000000000946E000-memory.dmp

    Filesize

    56KB

  • memory/4116-9-0x00000000744FE000-0x00000000744FF000-memory.dmp

    Filesize

    4KB

  • memory/4116-10-0x00000000744F0000-0x0000000074CA0000-memory.dmp

    Filesize

    7.7MB

  • memory/4116-2-0x0000000005F80000-0x0000000006524000-memory.dmp

    Filesize

    5.6MB

  • memory/4116-11-0x0000000006CF0000-0x0000000006D8C000-memory.dmp

    Filesize

    624KB

  • memory/4116-17-0x00000000744F0000-0x0000000074CA0000-memory.dmp

    Filesize

    7.7MB

  • memory/4116-1-0x0000000000F90000-0x0000000000FF8000-memory.dmp

    Filesize

    416KB

  • memory/4676-16-0x00000000744F0000-0x0000000074CA0000-memory.dmp

    Filesize

    7.7MB

  • memory/4676-18-0x00000000744F0000-0x0000000074CA0000-memory.dmp

    Filesize

    7.7MB

  • memory/4676-13-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/4676-19-0x0000000006110000-0x0000000006128000-memory.dmp

    Filesize

    96KB

  • memory/4676-20-0x00000000061C0000-0x0000000006226000-memory.dmp

    Filesize

    408KB

  • memory/4676-21-0x00000000744F0000-0x0000000074CA0000-memory.dmp

    Filesize

    7.7MB

  • memory/4676-22-0x00000000744F0000-0x0000000074CA0000-memory.dmp

    Filesize

    7.7MB

  • memory/4676-25-0x0000000006400000-0x0000000006450000-memory.dmp

    Filesize

    320KB

  • memory/4676-26-0x00000000744F0000-0x0000000074CA0000-memory.dmp

    Filesize

    7.7MB

  • memory/4676-27-0x00000000744F0000-0x0000000074CA0000-memory.dmp

    Filesize

    7.7MB