Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    11/08/2026, 12:29

General

  • Target
    ALE123.exe
  • Size 4.9MB
  • Sample260811-pn69haek21
  • SHA256 b038b23220a6948af729f5fe9243481ab0a16e8a27378c08e1bc6eb51c7398ac
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • acrstealer

Version
  • 4.3.2-alpha3

C2
  • wss.infrastructurecore.cc

Decoy
  • keycdn.com

Attributes
  • guids

    a6cdcc0b-6b38-49d6-9672-20be114d9eba

    019fddb7-f955-741d-9654-974f603f741d

  • user_agent

    Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/134.2.6187.130 Safari/537.36

xor.hex

Signatures

  • Family: ACR stealer,GrMsk

    ACR stealer (aka GrMsk stealer) is an infostealer written in C++.

  • Detects ACRStealer V4.x 13 IoCs
  • Suspicious use of NtCreateUserProcessOtherParentProcess 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.

  • 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 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
  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 34 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:3272
      • C:\Users\Admin\AppData\Local\Temp\ALE123.exe
        "C:\Users\Admin\AppData\Local\Temp\ALE123.exe"
        2⤵
        • Suspicious use of NtCreateUserProcessOtherParentProcess
        • Suspicious use of NtSetInformationThreadHideFromDebugger
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:6080
      • C:\Program Files\Google\Chrome\Application\chrome.exe
        "C:\Program Files\Google\Chrome\Application\chrome.exe" --no-first-run --no-default-browser-check
        2⤵
        • Checks processor information in registry
        • Enumerates system info in registry
        • Modifies data under HKEY_USERS
        • Modifies registry class
        • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of WriteProcessMemory
        PID:2684
        • 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,0x100,0xd4,0x104,0x7ffbc85fc728,0x7ffbc85fc734,0x7ffbc85fc740
          3⤵
            PID:4148
          • 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=1792,i,7921936245054476337,6686151012822232405,262144 --field-trial-handle=2072,i,15732505686267153226,5342250322223684704,262144 --variations-seed-version=20260513-090056.789000-production --mojo-platform-channel-handle=2060 /prefetch:2
            3⤵
              PID:1724
            • 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=2300,i,6992056868822399302,764880732649477453,524288 --field-trial-handle=2072,i,15732505686267153226,5342250322223684704,262144 --variations-seed-version=20260513-090056.789000-production --mojo-platform-channel-handle=1628 /prefetch:3
              3⤵
              • System Time Discovery
              PID:1912
            • 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=2456,i,17336864821869439606,4762482359313963121,524288 --field-trial-handle=2072,i,15732505686267153226,5342250322223684704,262144 --variations-seed-version=20260513-090056.789000-production --mojo-platform-channel-handle=2616 /prefetch:8
              3⤵
                PID:4756
              • 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=3228,i,10770070925689460982,16182893745890425278,2097152 --field-trial-handle=2072,i,15732505686267153226,5342250322223684704,262144 --variations-seed-version=20260513-090056.789000-production --mojo-platform-channel-handle=3312 /prefetch:1
                3⤵
                  PID:5236
                • 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=3232,i,11851915446817590764,1859565470372202482,2097152 --field-trial-handle=2072,i,15732505686267153226,5342250322223684704,262144 --variations-seed-version=20260513-090056.789000-production --mojo-platform-channel-handle=3332 /prefetch:1
                  3⤵
                    PID:5668
                  • 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=4268,i,8541940181026360424,16706675622203472162,2097152 --field-trial-handle=2072,i,15732505686267153226,5342250322223684704,262144 --variations-seed-version=20260513-090056.789000-production --mojo-platform-channel-handle=4100 /prefetch:2
                    3⤵
                      PID:5828
                    • 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 --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=8 --metrics-shmem-handle=4644,i,10129196137872134121,5708185284412798002,2097152 --field-trial-handle=2072,i,15732505686267153226,5342250322223684704,262144 --variations-seed-version=20260513-090056.789000-production --mojo-platform-channel-handle=4656 /prefetch:1
                      3⤵
                        PID:4408
                      • 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=5384,i,543899244865370379,4939817258204610010,524288 --field-trial-handle=2072,i,15732505686267153226,5342250322223684704,262144 --variations-seed-version=20260513-090056.789000-production --mojo-platform-channel-handle=5392 /prefetch:8
                        3⤵
                          PID:5512
                        • C:\Program Files\Google\Chrome\Application\chrome.exe
                          "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=chrome.mojom.UtilWin --lang=en-US --service-sandbox-type=none --message-loop-type-ui --force-high-res-timeticks=disabled --metrics-shmem-handle=5388,i,17905240258933191297,9943841498383370785,524288 --field-trial-handle=2072,i,15732505686267153226,5342250322223684704,262144 --variations-seed-version=20260513-090056.789000-production --mojo-platform-channel-handle=5400 /prefetch:8
                          3⤵
                            PID:3864
                          • C:\Program Files\Google\Chrome\Application\chrome.exe
                            "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=chrome.mojom.UtilWin --lang=en-US --service-sandbox-type=none --message-loop-type-ui --force-high-res-timeticks=disabled --metrics-shmem-handle=5632,i,4306397667439511726,10549434919316749476,524288 --field-trial-handle=2072,i,15732505686267153226,5342250322223684704,262144 --variations-seed-version=20260513-090056.789000-production --mojo-platform-channel-handle=5656 /prefetch:8
                            3⤵
                              PID:860
                            • C:\Program Files\Google\Chrome\Application\chrome.exe
                              "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=chrome.mojom.UtilWin --lang=en-US --service-sandbox-type=none --message-loop-type-ui --force-high-res-timeticks=disabled --metrics-shmem-handle=5648,i,13973898113101571461,10560556136938311769,524288 --field-trial-handle=2072,i,15732505686267153226,5342250322223684704,262144 --variations-seed-version=20260513-090056.789000-production --mojo-platform-channel-handle=5380 /prefetch:8
                              3⤵
                                PID:1856
                              • C:\Program Files\Google\Chrome\Application\chrome.exe
                                "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=gpu-process --disable-gpu-sandbox --use-gl=disabled --gpu-vendor-id=5140 --gpu-device-id=140 --gpu-sub-system-id=0 --gpu-revision=0 --gpu-driver-version=10.0.19041.546 --force-high-res-timeticks=disabled --gpu-preferences=SAAAAAAAAADoAAAIAAAAAAAAAAAAAGAAAQAAAAAAAACEAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAQAAAAAAAAABAAAAAAAAAACAAAAAAAAAAIAAAAAAAAAA== --metrics-shmem-handle=4624,i,14072134747316437682,11240327174852269949,262144 --field-trial-handle=2072,i,15732505686267153226,5342250322223684704,262144 --variations-seed-version=20260513-090056.789000-production --mojo-platform-channel-handle=5400 /prefetch:8
                                3⤵
                                  PID:4044
                            • 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:4516
                              • C:\Windows\system32\svchost.exe
                                C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s NgcSvc
                                1⤵
                                  PID:1740

                                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 414B
                                      • SHA256 c69035de31d32444ab373aefcc90c7bb22cb839ec23a9d68720de77edfbb6c48
                                      • MD5 SHA1 SHA512 TLSH

                                      Network Persistent State

                                      • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Network\Network Persistent State
                                      • Size 2KB
                                      • SHA256 5b818f0de545836e5c4fb62dd6849ab75ac5250a6e74d8301b4ad0e895575fe8
                                      • 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

                                      Preferences

                                      • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Preferences
                                      • Size 12KB
                                      • SHA256 0156319966ce41b337fc57c0562b89d236f5c617b4c5badbf1a5955e06db2b1f
                                      • MD5 SHA1 SHA512 SSDEEP TLSH

                                      Secure Preferences

                                      • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Secure Preferences
                                      • Size 17KB
                                      • SHA256 c54836683d23f9fee57c69a9d42002f448a01bbb5b6b38437c5fcac9744adcc4
                                      • MD5 SHA1 SHA512 SSDEEP TLSH

                                      the-real-index

                                      • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Service Worker\ScriptCache\index-dir\the-real-index
                                      • Size 120B
                                      • SHA256 8de294260e2168161b36c18b243ccd83bbfa7e1795697c9f3f1d7b1bf891c250
                                      • MD5 SHA1 SHA512 TLSH

                                      the-real-index~RFe583f56.TMP

                                      • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Service Worker\ScriptCache\index-dir\the-real-index~RFe583f56.TMP
                                      • Size 96B
                                      • SHA256 4c7402f367d8cb9b89ed45feee682003f7e754472a8258808c0aea45901be160
                                      • MD5 SHA1 SHA512 TLSH

                                      Local State

                                      • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Local State
                                      • Size 115KB
                                      • SHA256 dc387b3c5fffedee4cdf20891785023f123abd9220f2f24a9594f0a953e5e89c
                                      • MD5 SHA1 SHA512 SSDEEP TLSH

                                      Local State

                                      • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Local State
                                      • Size 237KB
                                      • SHA256 1b8ab3ac9a077a7455b74442da109804111e4fbafc396937e578c918991905b5
                                      • MD5 SHA1 SHA512 SSDEEP TLSH

                                      Local State

                                      • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Local State
                                      • Size 236KB
                                      • SHA256 4cffa24b52718f10f9cdcc3d21435033739aa8bc3dbf406fe1309069bafcfe87
                                      • MD5 SHA1 SHA512 SSDEEP TLSH

                                      Local State

                                      • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Local State
                                      • Size 236KB
                                      • SHA256 c64ad70066c9e6b0203bbbf0d2a8d48e707e4fab850a806257b32cdd54f3eefe
                                      • MD5 SHA1 SHA512 SSDEEP TLSH

                                      memory/6080-43-0x0000000000400000-0x00000000004BC000-memory.dmp

                                      memory/6080-334-0x0000000000400000-0x00000000004BC000-memory.dmp

                                      memory/6080-91-0x0000000000400000-0x00000000004BC000-memory.dmp

                                      memory/6080-85-0x0000000000400000-0x00000000004BC000-memory.dmp

                                      memory/6080-0-0x0000000000400000-0x00000000004BC000-memory.dmp

                                      memory/6080-84-0x0000000000400000-0x00000000004BC000-memory.dmp

                                      memory/6080-335-0x0000000000400000-0x00000000004BC000-memory.dmp

                                      memory/6080-412-0x0000000000400000-0x00000000004BC000-memory.dmp

                                      memory/6080-37-0x0000000000400000-0x00000000004BC000-memory.dmp

                                      memory/6080-5-0x0000000000400000-0x00000000004BC000-memory.dmp

                                      memory/6080-338-0x0000000000400000-0x00000000004BC000-memory.dmp

                                      memory/6080-333-0x0000000000400000-0x00000000004BC000-memory.dmp

                                      memory/6080-2-0x0000000000400000-0x00000000004BC000-memory.dmp