Analysis

  • max time kernel
    120s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    16-01-2025 01:06

General

  • Target

    heif.dll

  • Size

    1.3MB

  • MD5

    53ef71e5b537ee5b4c1dac26142781e0

  • SHA1

    5c615a3558e1ae87d1af51a205893b10d50fc0d0

  • SHA256

    0338d145cd8031fe359cc4d5feb62060aecee9fab76f58c76f31e4f2167e11d4

  • SHA512

    7e92cc792ec93433d4ae1220d7e3d3c6c763d220e5123a1f1ca0e6ad282c4015de9a05ed7011274b16b56bdcfb91a3966b4ef18b69ec5c084c569cc3a50fc27b

  • SSDEEP

    24576:PpMjSJGKw1B5R8Wc7G0gfdUFg3CbypD2lMJd05FXDDnvjWQx/KhxWuuWW7UNbryB:PpsSJGKwzX8MfdUFg3CbypD2lMJd05F1

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot7220431026:AAHszs0XzPcajloTXlLJDVKab99uNUvPaok/

Signatures

  • AgentTesla

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

  • Agenttesla family
  • Suspicious use of SetThreadContext 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 1 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 SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\heif.dll,#1
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2068
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:2448
    • C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -u -p 2068 -s 236
      2⤵
        PID:2876

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/2448-0-0x0000000000400000-0x0000000000444000-memory.dmp

      Filesize

      272KB

    • memory/2448-4-0x0000000000400000-0x0000000000444000-memory.dmp

      Filesize

      272KB

    • memory/2448-2-0x0000000000400000-0x0000000000444000-memory.dmp

      Filesize

      272KB

    • memory/2448-5-0x000000007457E000-0x000000007457F000-memory.dmp

      Filesize

      4KB

    • memory/2448-6-0x0000000074570000-0x0000000074C5E000-memory.dmp

      Filesize

      6.9MB

    • memory/2448-7-0x000000007457E000-0x000000007457F000-memory.dmp

      Filesize

      4KB

    • memory/2448-8-0x0000000074570000-0x0000000074C5E000-memory.dmp

      Filesize

      6.9MB