Analysis

  • max time kernel
    62s
  • max time network
    145s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    30/10/2024, 12:51

General

  • Target
    file.exe
  • Size 2.0MB
  • Sample241030-p3gmdsteke
  • SHA256 024751463a5df586f542a9c860769b7ee57e35143e3e674ecf6a7fcb97717410
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • stealc

Botnet
  • tale

C2
  • http://185.215.113.206

Attributes
  • url_path

    /6c4adf523b719729.php

Signatures

  • Stealc

    Stealc is an infostealer written in C++.

  • Stealc family
  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
  • Uses browser remote debugging 2 TTPs 4 IoCs

    Can be used control the browser and steal sensitive information such as credentials and session cookies.

  • Checks BIOS information in registry 2 TTPs 2 IoCs

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

  • Identifies Wine through registry keys 2 TTPs 1 IoCs

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

  • Loads dropped DLL 1 IoCs
  • 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.

  • Program crash 1 IoCs
  • 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.

  • 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
  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 34 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\file.exe
    "C:\Users\Admin\AppData\Local\Temp\file.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
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2528
    • C:\Program Files\Google\Chrome\Application\chrome.exe
      "C:\\Program Files\\Google\\Chrome\\Application\\chrome.exe" --remote-debugging-port=9229 --profile-directory="Default"
      2⤵
      • Uses browser remote debugging
      • Enumerates system info in registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:2848
      • 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:7 --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=106.0.5249.119 --initial-client-data=0xc0,0xc4,0xc8,0x94,0xcc,0x7fef7289758,0x7fef7289768,0x7fef7289778
        3⤵
          PID:2880
        • C:\Windows\system32\ctfmon.exe
          ctfmon.exe
          3⤵
            PID:2680
          • C:\Program Files\Google\Chrome\Application\chrome.exe
            "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=gpu-process --gpu-preferences=UAAAAAAAAADgAAAYAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAQAAAAAAAAAAAAAAAAAAAAAAAAAEgAAAAAAAAASAAAAAAAAAAYAAAAAgAAABAAAAAAAAAAGAAAAAAAAAAQAAAAAAAAAAAAAAAOAAAAEAAAAAAAAAABAAAADgAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=1152 --field-trial-handle=1484,i,1312496263403150453,8054651799827545799,131072 /prefetch:2
            3⤵
              PID:2524
            • 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 --mojo-platform-channel-handle=1388 --field-trial-handle=1484,i,1312496263403150453,8054651799827545799,131072 /prefetch:8
              3⤵
                PID:2852
              • 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=utility --mojo-platform-channel-handle=1624 --field-trial-handle=1484,i,1312496263403150453,8054651799827545799,131072 /prefetch:8
                3⤵
                  PID:1548
                • C:\Program Files\Google\Chrome\Application\chrome.exe
                  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --display-capture-permissions-policy-allowed --first-renderer-process --remote-debugging-port=9229 --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=6 --mojo-platform-channel-handle=2304 --field-trial-handle=1484,i,1312496263403150453,8054651799827545799,131072 /prefetch:1
                  3⤵
                  • Uses browser remote debugging
                  PID:1740
                • C:\Program Files\Google\Chrome\Application\chrome.exe
                  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --display-capture-permissions-policy-allowed --remote-debugging-port=9229 --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=5 --mojo-platform-channel-handle=2312 --field-trial-handle=1484,i,1312496263403150453,8054651799827545799,131072 /prefetch:1
                  3⤵
                  • Uses browser remote debugging
                  PID:2792
                • C:\Program Files\Google\Chrome\Application\chrome.exe
                  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=gpu-process --gpu-preferences=UAAAAAAAAADgAAAYAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAQAAAAAAAAAAAAAAAAAAAAAAAAAEgAAAAAAAAASAAAAAAAAAAYAAAAAgAAABAAAAAAAAAAGAAAAAAAAAAQAAAAAAAAAAAAAAAOAAAAEAAAAAAAAAABAAAADgAAAAgAAAAAAAAACAAAAAAAAAA= --use-gl=angle --use-angle=swiftshader-webgl --mojo-platform-channel-handle=1452 --field-trial-handle=1484,i,1312496263403150453,8054651799827545799,131072 /prefetch:2
                  3⤵
                    PID:1028
                  • C:\Program Files\Google\Chrome\Application\chrome.exe
                    "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --display-capture-permissions-policy-allowed --remote-debugging-port=9229 --disable-gpu-compositing --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=8 --mojo-platform-channel-handle=3248 --field-trial-handle=1484,i,1312496263403150453,8054651799827545799,131072 /prefetch:1
                    3⤵
                    • Uses browser remote debugging
                    PID:2656
                  • C:\Program Files\Google\Chrome\Application\chrome.exe
                    "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=data_decoder.mojom.DataDecoderService --lang=en-US --service-sandbox-type=service --mojo-platform-channel-handle=3448 --field-trial-handle=1484,i,1312496263403150453,8054651799827545799,131072 /prefetch:8
                    3⤵
                      PID:332
                    • C:\Program Files\Google\Chrome\Application\chrome.exe
                      "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=data_decoder.mojom.DataDecoderService --lang=en-US --service-sandbox-type=service --mojo-platform-channel-handle=3632 --field-trial-handle=1484,i,1312496263403150453,8054651799827545799,131072 /prefetch:8
                      3⤵
                        PID:2964
                      • C:\Program Files\Google\Chrome\Application\chrome.exe
                        "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=data_decoder.mojom.DataDecoderService --lang=en-US --service-sandbox-type=service --mojo-platform-channel-handle=3748 --field-trial-handle=1484,i,1312496263403150453,8054651799827545799,131072 /prefetch:8
                        3⤵
                          PID:2456
                        • C:\Program Files\Google\Chrome\Application\chrome.exe
                          "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=data_decoder.mojom.DataDecoderService --lang=en-US --service-sandbox-type=service --mojo-platform-channel-handle=3160 --field-trial-handle=1484,i,1312496263403150453,8054651799827545799,131072 /prefetch:8
                          3⤵
                            PID:880
                          • 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 --mojo-platform-channel-handle=3776 --field-trial-handle=1484,i,1312496263403150453,8054651799827545799,131072 /prefetch:8
                            3⤵
                              PID:2596
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -u -p 2528 -s 1004
                            2⤵
                            • Program crash
                            PID:2876
                        • C:\Program Files\Google\Chrome\Application\106.0.5249.119\elevation_service.exe
                          "C:\Program Files\Google\Chrome\Application\106.0.5249.119\elevation_service.exe"
                          1⤵
                            PID:2120

                          Network

                                MITRE ATT&CK Enterprise v15

                                Replay Monitor

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                                Downloads

                                000006.dbtmp

                                • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\GCM Store\Encryption\000006.dbtmp
                                • Size 16B
                                • SHA256 4166bf17b2da789b0d0cc5c74203041d98005f5d4ef88c27e8281e00148cd611
                                • MD5 SHA1 SHA512

                                data_1

                                • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\GPUCache\data_1
                                • Size 264KB
                                • SHA256 b1e963d702392fb7224786e7d56d43973e9b9efd1b89c17814d7c558ffc0cdec
                                • MD5 SHA1 SHA512 SSDEEP

                                Network Persistent State

                                • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Network\Network Persistent State
                                • Size 1KB
                                • SHA256 68e787b244429f545727b995e476dc61bec77814a8521a1f28d8f463ed3fe9d8
                                • MD5 SHA1 SHA512

                                Preferences

                                • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Preferences
                                • Size 5KB
                                • SHA256 23639e32137c1c6c364221eecfbba6a84c4796631ac676f1b036626d6591340b
                                • MD5 SHA1 SHA512 SSDEEP

                                Preferences

                                • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Preferences
                                • Size 5KB
                                • SHA256 4628ada4a59e5e3e535dd5a6f96b2db5ed62a41fb5397dd610627414bb84a895
                                • MD5 SHA1 SHA512 SSDEEP

                                000007.dbtmp

                                • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Sync Data\LevelDB\000007.dbtmp
                                • Size 16B
                                • SHA256 8af72f43857550b01eab1019335772b367a17a9884a7a759fdf4fe6f272b90aa
                                • MD5 SHA1 SHA512

                                chrome.dll

                                • Path \ProgramData\chrome.dll
                                • Size 676KB
                                • SHA256 81a4f37c5495800b7cc46aea6535d9180dadb5c151db6f1fd1968d1cd8c1eeb4
                                • MD5 SHA1 SHA512 SSDEEP

                                memory/2528-25-0x0000000000AB0000-0x00000000011CC000-memory.dmp

                                memory/2528-0-0x0000000000AB0000-0x00000000011CC000-memory.dmp

                                memory/2528-91-0x0000000000AB0000-0x00000000011CC000-memory.dmp

                                memory/2528-99-0x0000000000AB0000-0x00000000011CC000-memory.dmp

                                memory/2528-4-0x0000000061E00000-0x0000000061EF3000-memory.dmp

                                memory/2528-105-0x0000000000AB0000-0x00000000011CC000-memory.dmp

                                memory/2528-107-0x0000000000AB0000-0x00000000011CC000-memory.dmp

                                memory/2528-3-0x0000000000AB0000-0x00000000011CC000-memory.dmp

                                memory/2528-2-0x0000000000AB1000-0x0000000000B19000-memory.dmp

                                memory/2528-1-0x0000000077C90000-0x0000000077C92000-memory.dmp