Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12/01/2025, 14:06

General

  • Target
    installer_1.05_37.4.exe
  • Size 1.1MB
  • Sample250112-ref23axqbm
  • SHA256 34c3a5d70230d93968cc2db047398cef644fb500740bbc20d09feb8e754ae197
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10

Malware Config

Extracted

Family
  • lumma

C2
  • https://goldyhanders.cyou/api

Signatures

  • Lumma Stealer, LummaC

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

  • Lumma family
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • Enumerates processes with tasklist 1 TTPs 2 IoCs
  • Drops file in Windows directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 13 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of FindShellTrayWindow 3 IoCs
  • Suspicious use of SendNotifyMessage 3 IoCs
  • Suspicious use of WriteProcessMemory 36 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\installer_1.05_37.4.exe
    "C:\Users\Admin\AppData\Local\Temp\installer_1.05_37.4.exe"
    1⤵
    • Checks computer location settings
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4700
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c move Unexpected Unexpected.cmd & Unexpected.cmd
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2708
      • C:\Windows\SysWOW64\tasklist.exe
        tasklist
        3⤵
        • Enumerates processes with tasklist
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        PID:2256
      • C:\Windows\SysWOW64\findstr.exe
        findstr /I "opssvc wrsa"
        3⤵
        • System Location Discovery: System Language Discovery
        PID:3472
      • C:\Windows\SysWOW64\tasklist.exe
        tasklist
        3⤵
        • Enumerates processes with tasklist
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        PID:3820
      • C:\Windows\SysWOW64\findstr.exe
        findstr "AvastUI AVGUI bdservicehost nsWscSvc ekrn SophosHealth"
        3⤵
        • System Location Discovery: System Language Discovery
        PID:4220
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c md 224553
        3⤵
        • System Location Discovery: System Language Discovery
        PID:1048
      • C:\Windows\SysWOW64\extrac32.exe
        extrac32 /Y /E Choosing
        3⤵
        • System Location Discovery: System Language Discovery
        PID:4732
      • C:\Windows\SysWOW64\findstr.exe
        findstr /V "Readily" Departure
        3⤵
        • System Location Discovery: System Language Discovery
        PID:3632
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c copy /b 224553\Luther.com + Remote + Priorities + Cho + Reliability + Rating + Dot + Holocaust + Page + Webshots 224553\Luther.com
        3⤵
        • System Location Discovery: System Language Discovery
        PID:1572
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c copy /b ..\Crowd + ..\Leone + ..\Tutorial + ..\Architect + ..\Mutual + ..\Margin + ..\Many z
        3⤵
        • System Location Discovery: System Language Discovery
        PID:3308
      • C:\Users\Admin\AppData\Local\Temp\224553\Luther.com
        Luther.com z
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:4000
      • C:\Windows\SysWOW64\choice.exe
        choice /d y /t 5
        3⤵
        • System Location Discovery: System Language Discovery
        PID:3872

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        Luther.com

        • Path C:\Users\Admin\AppData\Local\Temp\224553\Luther.com
        • Size 80KB
        • SHA256 14b16c15f9c0dcd10615805faa5f34ce98bc2e488d666af6e2fd6171050891a6
        • MD5 SHA1 SHA512 SSDEEP

        Luther.com

        • Path C:\Users\Admin\AppData\Local\Temp\224553\Luther.com
        • Size 925KB
        • SHA256 1300262a9d6bb6fcbefc0d299cce194435790e70b9c7b4a651e202e90a32fd49
        • MD5 SHA1 SHA512 SSDEEP

        z

        • Path C:\Users\Admin\AppData\Local\Temp\224553\z
        • Size 474KB
        • SHA256 1021afdcac174ac0bfeb373b28c4658b5dc7671fcd2f7301edb10746eaf4f333
        • MD5 SHA1 SHA512 SSDEEP

        Architect

        • Path C:\Users\Admin\AppData\Local\Temp\Architect
        • Size 52KB
        • SHA256 97ae833cc88a6444656556032ad9d2ec0351233b41c5ec74a2d49341eeffa1b6
        • MD5 SHA1 SHA512 SSDEEP

        Cho

        • Path C:\Users\Admin\AppData\Local\Temp\Cho
        • Size 88KB
        • SHA256 43f6fa8cd5131cdb725ae40bc9643a0126c9ff356333d757e6ab105e1274cfb2
        • MD5 SHA1 SHA512 SSDEEP

        Choosing

        • Path C:\Users\Admin\AppData\Local\Temp\Choosing
        • Size 477KB
        • SHA256 87aa8213c3409de46457a2fdbb278ff529caac10391f36687617fa149406b5ea
        • MD5 SHA1 SHA512 SSDEEP

        Crowd

        • Path C:\Users\Admin\AppData\Local\Temp\Crowd
        • Size 94KB
        • SHA256 65e9e6bfccd8ab7acac8e56e74410059512477c47dff1acbcaba22f3611ebd06
        • MD5 SHA1 SHA512 SSDEEP

        Departure

        • Path C:\Users\Admin\AppData\Local\Temp\Departure
        • Size 1008B
        • SHA256 1abe59bf2eccf033889f006f7e47709ec38d5e36e795dc959e68ad60a1c1425a
        • MD5 SHA1 SHA512

        Dot

        • Path C:\Users\Admin\AppData\Local\Temp\Dot
        • Size 83KB
        • SHA256 f232b85dbcfa04e0bf3881a1693f6d5a79031cde17c56cb819c94b844d61e8b9
        • MD5 SHA1 SHA512 SSDEEP

        Holocaust

        • Path C:\Users\Admin\AppData\Local\Temp\Holocaust
        • Size 132KB
        • SHA256 82653165cc91bc33c0120101dc443294cbcdcdf02d19111ef906e5f00efad565
        • MD5 SHA1 SHA512 SSDEEP

        Leone

        • Path C:\Users\Admin\AppData\Local\Temp\Leone
        • Size 54KB
        • SHA256 cb198967c45747c5e6a2fd5c92ff5b13e4c10d4f7dc443b394601c8db65b8b71
        • MD5 SHA1 SHA512 SSDEEP

        Many

        • Path C:\Users\Admin\AppData\Local\Temp\Many
        • Size 40KB
        • SHA256 d6b86d8d46d73f3df05a804615985008646dd078ecc4bb753b34c0026cab4473
        • MD5 SHA1 SHA512 SSDEEP

        Margin

        • Path C:\Users\Admin\AppData\Local\Temp\Margin
        • Size 80KB
        • SHA256 2e5ffe7355a711ded6e0a037f2fd1eec67dd52d48a83117e7c35827c2c7af2c0
        • MD5 SHA1 SHA512 SSDEEP

        Mutual

        • Path C:\Users\Admin\AppData\Local\Temp\Mutual
        • Size 90KB
        • SHA256 ceeaa6ad552ba0189f32c51153c882a9772e6fc3d7d1d9a632106348840fabde
        • MD5 SHA1 SHA512 SSDEEP

        Page

        • Path C:\Users\Admin\AppData\Local\Temp\Page
        • Size 142KB
        • SHA256 9f080e2cb1c50c9646279cb6943bbf35016e61c89f5437ebfe32466109aaa291
        • MD5 SHA1 SHA512 SSDEEP

        Priorities

        • Path C:\Users\Admin\AppData\Local\Temp\Priorities
        • Size 67KB
        • SHA256 0f88efbb006b3b8924cb853643f944c7d1bc0e16162a8c9bb82483e8d65a4306
        • MD5 SHA1 SHA512 SSDEEP

        Rating

        • Path C:\Users\Admin\AppData\Local\Temp\Rating
        • Size 134KB
        • SHA256 2601fbcbc756e49dd60f311b322bf80a6f1c7f4137c263097c5bf67162433ae2
        • MD5 SHA1 SHA512 SSDEEP

        Reliability

        • Path C:\Users\Admin\AppData\Local\Temp\Reliability
        • Size 126KB
        • SHA256 ae0bdb2202869d1b4a823af93eeb97e1a6a2a0c2d44dfaf91f690bacc1b33ddd
        • MD5 SHA1 SHA512 SSDEEP

        Remote

        • Path C:\Users\Admin\AppData\Local\Temp\Remote
        • Size 80KB
        • SHA256 ca490cca0a853ed6f00f791a65e61aa478154968259b06e8d6ceeda76d006d67
        • MD5 SHA1 SHA512 SSDEEP

        Tutorial

        • Path C:\Users\Admin\AppData\Local\Temp\Tutorial
        • Size 64KB
        • SHA256 eaf7f69ed7cc6190d37788a127613ec90d3f9ad822b1f913e90cbf1b32613a6e
        • MD5 SHA1 SHA512 SSDEEP

        Unexpected

        • Path C:\Users\Admin\AppData\Local\Temp\Unexpected
        • Size 15KB
        • SHA256 56331384e114b80d7f259411ef2b64c412206b5ad0680321f15387e37472cc7c
        • MD5 SHA1 SHA512 SSDEEP

        Webshots

        • Path C:\Users\Admin\AppData\Local\Temp\Webshots
        • Size 72KB
        • SHA256 0ebc95d7954aba8429745ed50884cd0629673be34386aa7c0cbac5a9a5b7aa02
        • MD5 SHA1 SHA512 SSDEEP

        memory/4000-66-0x0000000004BE0000-0x0000000004C35000-memory.dmp

        memory/4000-67-0x0000000004BE0000-0x0000000004C35000-memory.dmp

        memory/4000-68-0x0000000004BE0000-0x0000000004C35000-memory.dmp

        memory/4000-70-0x0000000004BE0000-0x0000000004C35000-memory.dmp

        memory/4000-69-0x0000000004BE0000-0x0000000004C35000-memory.dmp