Analysis

  • max time kernel
    119s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    16-12-2024 02:17

General

  • Target

    55057c4ee590fc8337d23e68a57fa8307511c182eeec107e9fd795778b91f422.exe

  • Size

    1.8MB

  • MD5

    cc0ed26087a0b2c7fa2c5090bf1b486c

  • SHA1

    754b088c7de26fc2bfbc790b890d258f4e04e6cc

  • SHA256

    55057c4ee590fc8337d23e68a57fa8307511c182eeec107e9fd795778b91f422

  • SHA512

    d48400779c894af61c9950d0b7acacb1a4a5c15a0994e3ff1d2c6879fac25ed94237fe7d9acede5d8534f556d0f204ff1228414e943a5d0abec7e6b41630d1f3

  • SSDEEP

    49152:YYyJmJB6uY/HurfHt2Bkk17fG5SKBOAV4Cl2C:ST/mPtgkqG5SKB6C

Malware Config

Extracted

Family

lumma

C2

https://sordid-snaked.cyou/api

https://awake-weaves.cyou/api

https://wrathful-jammy.cyou/api

https://debonairnukk.xyz/api

https://diffuculttan.xyz/api

https://effecterectz.xyz/api

https://deafeninggeh.biz/api

https://immureprech.biz/api

https://tacitglibbr.biz/api

Extracted

Family

stealc

Botnet

stok

C2

http://185.215.113.206

Attributes
  • url_path

    /c4becf79229cb002.php

Extracted

Family

lumma

C2

https://tacitglibbr.biz/api

Signatures

  • Lumma Stealer, LummaC

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

  • Lumma family
  • Modifies Windows Defender Real-time Protection settings 3 TTPs 6 IoCs
  • Stealc

    Stealc is an infostealer written in C++.

  • Stealc family
  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 3 IoCs
  • Downloads MZ/PE file
  • Checks BIOS information in registry 2 TTPs 6 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Executes dropped EXE 2 IoCs
  • Identifies Wine through registry keys 2 TTPs 3 IoCs

    Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

  • Loads dropped DLL 3 IoCs
  • 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.

  • Windows security modification 2 TTPs 2 IoCs
  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Suspicious use of NtSetInformationThreadHideFromDebugger 3 IoCs
  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 9 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\55057c4ee590fc8337d23e68a57fa8307511c182eeec107e9fd795778b91f422.exe
    "C:\Users\Admin\AppData\Local\Temp\55057c4ee590fc8337d23e68a57fa8307511c182eeec107e9fd795778b91f422.exe"
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Checks BIOS information in registry
    • Identifies Wine through registry keys
    • Loads dropped DLL
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2972
    • C:\Users\Admin\AppData\Local\Temp\2KHJSCDOSJSV9D7NFQ.exe
      "C:\Users\Admin\AppData\Local\Temp\2KHJSCDOSJSV9D7NFQ.exe"
      2⤵
      • Modifies Windows Defender Real-time Protection settings
      • Identifies VirtualBox via ACPI registry values (likely anti-VM)
      • Checks BIOS information in registry
      • Executes dropped EXE
      • Identifies Wine through registry keys
      • Windows security modification
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2620
    • C:\Users\Admin\AppData\Local\Temp\TAP5T91MPPHO1FRR2PQYOXG09.exe
      "C:\Users\Admin\AppData\Local\Temp\TAP5T91MPPHO1FRR2PQYOXG09.exe"
      2⤵
      • Identifies VirtualBox via ACPI registry values (likely anti-VM)
      • Checks BIOS information in registry
      • Executes dropped EXE
      • Identifies Wine through registry keys
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      PID:1784

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • \Users\Admin\AppData\Local\Temp\2KHJSCDOSJSV9D7NFQ.exe

    Filesize

    2.6MB

    MD5

    e5cfad81f5397d7eeed2e7251b7e6e7a

    SHA1

    84184161e1b542773e5c74909ce37bb1f8f2238e

    SHA256

    46cb31f14f15b4f13d203fe4138401adccf3163cf405fe907e7ee86bbd1c2387

    SHA512

    fad966d925810d75be01d20b2b2bbf45755a30d385754878764fec0f1d45100490ba8c4ea279429f91c627cfa8f6b0e2abc70abdb8b645dddf1abd4cf021656a

  • \Users\Admin\AppData\Local\Temp\TAP5T91MPPHO1FRR2PQYOXG09.exe

    Filesize

    1.7MB

    MD5

    f660a7ff99befe7ae52d2636a0e8db46

    SHA1

    41b7e90dbf2ce54bd4e3048d0dc1b7e9d59d81ee

    SHA256

    526d8ce745c14bac28de547ee616d66bec13517e558da772982b41cb9d6dda62

    SHA512

    4f13dc0b5c8003b3dc7a5f3faa02c4e103da106722d53494a74e419756d1ce8c35b308641e7690bb932002b0d16411caedb60e63138d33cbfe78520ca8bd0240

  • memory/1784-31-0x0000000000300000-0x0000000000995000-memory.dmp

    Filesize

    6.6MB

  • memory/1784-30-0x0000000000300000-0x0000000000995000-memory.dmp

    Filesize

    6.6MB

  • memory/2620-16-0x0000000001390000-0x0000000001638000-memory.dmp

    Filesize

    2.7MB

  • memory/2620-35-0x0000000001390000-0x0000000001638000-memory.dmp

    Filesize

    2.7MB

  • memory/2620-32-0x0000000001390000-0x0000000001638000-memory.dmp

    Filesize

    2.7MB

  • memory/2620-20-0x0000000001390000-0x0000000001638000-memory.dmp

    Filesize

    2.7MB

  • memory/2620-19-0x0000000001390000-0x0000000001638000-memory.dmp

    Filesize

    2.7MB

  • memory/2972-15-0x0000000006150000-0x00000000063F8000-memory.dmp

    Filesize

    2.7MB

  • memory/2972-0-0x0000000000950000-0x0000000000DFF000-memory.dmp

    Filesize

    4.7MB

  • memory/2972-18-0x0000000006150000-0x00000000063F8000-memory.dmp

    Filesize

    2.7MB

  • memory/2972-17-0x0000000000950000-0x0000000000DFF000-memory.dmp

    Filesize

    4.7MB

  • memory/2972-6-0x0000000000950000-0x0000000000DFF000-memory.dmp

    Filesize

    4.7MB

  • memory/2972-5-0x0000000000950000-0x0000000000DFF000-memory.dmp

    Filesize

    4.7MB

  • memory/2972-29-0x0000000006150000-0x00000000067E5000-memory.dmp

    Filesize

    6.6MB

  • memory/2972-4-0x0000000000950000-0x0000000000DFF000-memory.dmp

    Filesize

    4.7MB

  • memory/2972-28-0x0000000000950000-0x0000000000DFF000-memory.dmp

    Filesize

    4.7MB

  • memory/2972-3-0x0000000000950000-0x0000000000DFF000-memory.dmp

    Filesize

    4.7MB

  • memory/2972-2-0x0000000000951000-0x0000000000976000-memory.dmp

    Filesize

    148KB

  • memory/2972-1-0x0000000077680000-0x0000000077682000-memory.dmp

    Filesize

    8KB