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Analysis

  • max time kernel
    140s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    24/11/2024, 01:20

General

  • Target

    f0815e3a862e22963efd7e5f0f8bdda72cbb13a874dfeca3011d819342a83f35.exe

  • Size

    338KB

  • MD5

    781968940e3788a419f1db320472796b

  • SHA1

    8949d32f1858d7f4a79181e6be535909ba67e1de

  • SHA256

    f0815e3a862e22963efd7e5f0f8bdda72cbb13a874dfeca3011d819342a83f35

  • SHA512

    bfbf5df9cc2c0b83eb791049584372d157843f3c2b758d5e4f143bb562bd0cfbcc43b364650d6652abe19688709751db408d64d266de239e16db40da8fcd0eeb

  • SSDEEP

    6144:GBlL/4n4Q8MVKa1l3gTt0elaeTRz6WIPvryDI9cmd4baqo4MyWCy:EKr9yx0ITt6JmDRy4ba6WCy

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot1948592798:AAEPqwEad_OoXqml68rtg1qHOajQ46ljm48/sendDocument

Signatures

  • AgentTesla

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

  • Agenttesla family
  • AgentTesla payload 4 IoCs
  • Loads dropped DLL 1 IoCs
  • 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.

  • Unsecured Credentials: Credentials In Files 1 TTPs

    Steal credentials from unsecured files.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • 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 1 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f0815e3a862e22963efd7e5f0f8bdda72cbb13a874dfeca3011d819342a83f35.exe
    "C:\Users\Admin\AppData\Local\Temp\f0815e3a862e22963efd7e5f0f8bdda72cbb13a874dfeca3011d819342a83f35.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2700
    • C:\Users\Admin\AppData\Local\Temp\f0815e3a862e22963efd7e5f0f8bdda72cbb13a874dfeca3011d819342a83f35.exe
      "C:\Users\Admin\AppData\Local\Temp\f0815e3a862e22963efd7e5f0f8bdda72cbb13a874dfeca3011d819342a83f35.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:2820

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\nst4700.tmp\upspw.dll

    Filesize

    20KB

    MD5

    0f91acfbdd02bae9c793e8e8a4b70c95

    SHA1

    78e61c3a75786e9667f299d99509b0d10e1860fc

    SHA256

    cae5f924fa04faa67dd7033706ee6af0e045c91b2e2d10c03cd45182a9b3da31

    SHA512

    f9ae967537378efb79b9d43e9b987903137d5f0643bb39379284e68d51028ac8c4cf6652bf8019f6de77834095c127b6281a84a4f98e574d889197fec582b479

  • memory/2700-8-0x0000000010005000-0x0000000010007000-memory.dmp

    Filesize

    8KB

  • memory/2820-9-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB

  • memory/2820-11-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB

  • memory/2820-12-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB

  • memory/2820-13-0x0000000001E50000-0x0000000001E8C000-memory.dmp

    Filesize

    240KB