Analysis

  • max time kernel
    95s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    14-01-2025 02:41

General

  • Target

    tesr.exe

  • Size

    12.1MB

  • MD5

    4f96b4d0061d45b08d73e3526d82630f

  • SHA1

    15d6d2445d55db393adf30f0bf7f4b649c098257

  • SHA256

    30bc5b4729f0ae6ea5e1eb44654e739040f29941b5e6d2436b10ae93a98e5e6b

  • SHA512

    6b50eb6e642adb840497b95e0dd5248054752027c15627c2a6262a4e7497c78d1a7eb7b1936c7d8c6f94557b99fcb465e5514f707e04f5f7cc1efee69216a372

  • SSDEEP

    393216:R34OXjrnjnEEQWbPbqeQ2K3G/JXa42gqf:R4I/njtQOr50Sqf

Score
10/10

Malware Config

Extracted

Family

lumma

C2

https://impend-differ.biz/api

https://print-vexer.biz/api

https://dare-curbys.biz/api

https://covery-mover.biz/api

https://formy-spill.biz/api

https://dwell-exclaim.biz/api

https://zinc-sneark.biz/api

https://se-blurry.biz/api

Signatures

  • Lumma Stealer, LummaC

    Lumma or LummaC is an infostealer written in C++ first seen in August 2022.

  • Lumma 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 use of WriteProcessMemory 13 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\tesr.exe
    "C:\Users\Admin\AppData\Local\Temp\tesr.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3540
    • C:\Windows\SysWOW64\dxdiag.exe
      "C:\Windows\SysWOW64\dxdiag.exe"
      2⤵
        PID:3724
      • C:\Windows\SysWOW64\dxdiag.exe
        "C:\Windows\SysWOW64\dxdiag.exe"
        2⤵
        • System Location Discovery: System Language Discovery
        PID:916

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/916-0-0x0000000000400000-0x0000000000457000-memory.dmp

      Filesize

      348KB

    • memory/916-2-0x0000000000400000-0x0000000000457000-memory.dmp

      Filesize

      348KB

    • memory/916-3-0x0000000000400000-0x0000000000457000-memory.dmp

      Filesize

      348KB

    • memory/916-4-0x0000000000400000-0x0000000000457000-memory.dmp

      Filesize

      348KB