Analysis

  • max time kernel
    39s
  • max time network
    154s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    04-11-2024 17:17

General

  • Target

    build.exe

  • Size

    943KB

  • MD5

    8d861bb4030412f702135bb0817b81d9

  • SHA1

    45ec1c5b73ba2f35c5f4038719989ee6733082e7

  • SHA256

    94b8c531d97eabb5d7cd2a03845fcf17d399b589260275a4ea979d62d03963d3

  • SHA512

    59da85738f3df2982bf5bbe1162bc71e5fff0f9b198f700e7313a48ae7b42d0b948280a3ec8d5c2ab3cc03b02a4b6104712b6dcc6852cfaf34ee6fae64e78cf4

  • SSDEEP

    24576:ney05nEQXObrQEwMGNL/geFyNcTN+jv75TQn652VBuNyb6:eLZ+bsELGJtF4ch+jvNm0Nyb6

Malware Config

Extracted

Family

vidar

C2

https://t.me/asg7rd

https://steamcommunity.com/profiles/76561199794498376

Attributes
  • user_agent

    Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.6 Safari/605.1.15 Ddg/17.6

Signatures

  • Detect Vidar Stealer 2 IoCs
  • Vidar

    Vidar is an infostealer based on Arkei stealer.

  • Vidar family
  • Downloads MZ/PE file
  • Uses browser remote debugging 2 TTPs 4 IoCs

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

  • 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.

  • 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
  • Modifies system certificate store 2 TTPs 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 31 IoCs
  • Suspicious use of AdjustPrivilegeToken 56 IoCs
  • Suspicious use of FindShellTrayWindow 34 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\build.exe
    "C:\Users\Admin\AppData\Local\Temp\build.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Checks processor information in registry
    • Modifies system certificate store
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2860
    • C:\Program Files\Google\Chrome\Application\chrome.exe
      "C:\Program Files\Google\Chrome\Application\chrome.exe" --remote-debugging-port=9223 --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:1160
      • 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,0x7fef7469758,0x7fef7469768,0x7fef7469778
        3⤵
          PID:1592
        • C:\Windows\system32\ctfmon.exe
          ctfmon.exe
          3⤵
            PID:1800
          • 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=1136 --field-trial-handle=1400,i,2945116644542486741,11210765850788576276,131072 /prefetch:2
            3⤵
              PID:1540
            • 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=1536 --field-trial-handle=1400,i,2945116644542486741,11210765850788576276,131072 /prefetch:8
              3⤵
                PID:2368
              • 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=1620 --field-trial-handle=1400,i,2945116644542486741,11210765850788576276,131072 /prefetch:8
                3⤵
                  PID:1656
                • 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=9223 --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=6 --mojo-platform-channel-handle=2104 --field-trial-handle=1400,i,2945116644542486741,11210765850788576276,131072 /prefetch:1
                  3⤵
                  • Uses browser remote debugging
                  PID:2580
                • 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=9223 --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=5 --mojo-platform-channel-handle=2112 --field-trial-handle=1400,i,2945116644542486741,11210765850788576276,131072 /prefetch:1
                  3⤵
                  • Uses browser remote debugging
                  PID:2720
                • 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=1500 --field-trial-handle=1400,i,2945116644542486741,11210765850788576276,131072 /prefetch:2
                  3⤵
                    PID:1604
                  • 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=9223 --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=3320 --field-trial-handle=1400,i,2945116644542486741,11210765850788576276,131072 /prefetch:1
                    3⤵
                    • Uses browser remote debugging
                    PID:2332
                  • 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=3604 --field-trial-handle=1400,i,2945116644542486741,11210765850788576276,131072 /prefetch:8
                    3⤵
                      PID:700
                    • 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=3720 --field-trial-handle=1400,i,2945116644542486741,11210765850788576276,131072 /prefetch:8
                      3⤵
                        PID:2704
                      • 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=3888 --field-trial-handle=1400,i,2945116644542486741,11210765850788576276,131072 /prefetch:8
                        3⤵
                          PID:832
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -u -p 2860 -s 644
                        2⤵
                        • Program crash
                        PID:2984
                    • 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:3008

                      Network

                      MITRE ATT&CK Enterprise v15

                      Replay Monitor

                      Loading Replay Monitor...

                      Downloads

                      • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\GPUCache\data_1

                        Filesize

                        264KB

                        MD5

                        f50f89a0a91564d0b8a211f8921aa7de

                        SHA1

                        112403a17dd69d5b9018b8cede023cb3b54eab7d

                        SHA256

                        b1e963d702392fb7224786e7d56d43973e9b9efd1b89c17814d7c558ffc0cdec

                        SHA512

                        bf8cda48cf1ec4e73f0dd1d4fa5562af1836120214edb74957430cd3e4a2783e801fa3f4ed2afb375257caeed4abe958265237d6e0aacf35a9ede7a2e8898d58

                      • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Network\Network Persistent State

                        Filesize

                        1KB

                        MD5

                        ada20d8dc1ef6c18efa30d02758e37f8

                        SHA1

                        9c29a2a966fd957d0a102880a40fee1089e74864

                        SHA256

                        8f7e79a83c23881105c93637c7a44c3bf9aa74a936899125c45ebf18ab8b5fcb

                        SHA512

                        ae851b269c189ed170c95c75e7ac054ffe7dd8b23e5a3c71fa5bd700084d02e9e90f3e195ddd43650de7764a98bda15a421711b60462014c5d46a92c40fbdbb7

                      • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Preferences

                        Filesize

                        4KB

                        MD5

                        06233aabd1b7ed3eba483b33233b542a

                        SHA1

                        0e8b0bc65dd97a26c6dd3bc51ed768fba7adece1

                        SHA256

                        44dc84f3339e210c545ad6b03c554d991ec1165478ee31d92d7ad15072353233

                        SHA512

                        4149135c744f5018a4906d6b4a5970fbe1bd75066c12d47f249d76960fbc9123577b3ac7061f4ccaed2ef7c85dd82bbcdf81b22db4e389c2d35f5b74e3655abe

                      • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Preferences

                        Filesize

                        4KB

                        MD5

                        9a534f81ffb28ee203b8afcae26cd135

                        SHA1

                        d1fafd8e2287febe03a1de4f5c26d487be845b99

                        SHA256

                        f2e3e1b8ca1f5e1823b1eff75cbd9487674703eaa5cc98aeb026520c6eefcfc0

                        SHA512

                        bc6d04796cd94c9d69da0d413a8f7605e69b87eeccf158eed6a496a0e8a61729fdc5681b3962d8dd30dc02d7eab2758521696d6b176b0d716ceadd40787fadb7

                      • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Site Characteristics Database\000007.dbtmp

                        Filesize

                        16B

                        MD5

                        18e723571b00fb1694a3bad6c78e4054

                        SHA1

                        afcc0ef32d46fe59e0483f9a3c891d3034d12f32

                        SHA256

                        8af72f43857550b01eab1019335772b367a17a9884a7a759fdf4fe6f272b90aa

                        SHA512

                        43bb0af7d3984012d2d67ca6b71f0201e5b948e6fe26a899641c4c6f066c59906d468ddf7f1df5ea5fa33c2bc5ea8219c0f2c82e0a5c365ad7581b898a8859e2

                      • C:\Users\Admin\AppData\Local\Temp\Cab370A.tmp

                        Filesize

                        70KB

                        MD5

                        49aebf8cbd62d92ac215b2923fb1b9f5

                        SHA1

                        1723be06719828dda65ad804298d0431f6aff976

                        SHA256

                        b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

                        SHA512

                        bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

                      • C:\Users\Admin\AppData\Local\Temp\Tar374B.tmp

                        Filesize

                        181KB

                        MD5

                        4ea6026cf93ec6338144661bf1202cd1

                        SHA1

                        a1dec9044f750ad887935a01430bf49322fbdcb7

                        SHA256

                        8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

                        SHA512

                        6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

                      • \ProgramData\chrome.dll

                        Filesize

                        676KB

                        MD5

                        eda18948a989176f4eebb175ce806255

                        SHA1

                        ff22a3d5f5fb705137f233c36622c79eab995897

                        SHA256

                        81a4f37c5495800b7cc46aea6535d9180dadb5c151db6f1fd1968d1cd8c1eeb4

                        SHA512

                        160ed9990c37a4753fc0f5111c94414568654afbedc05308308197df2a99594f2d5d8fe511fd2279543a869ed20248e603d88a0b9b8fb119e8e6131b0c52ff85

                      • memory/2860-2-0x00000000013A0000-0x00000000016A0000-memory.dmp

                        Filesize

                        3.0MB

                      • memory/2860-177-0x0000000028CA0000-0x0000000028EFF000-memory.dmp

                        Filesize

                        2.4MB

                      • memory/2860-254-0x00000000013A0000-0x00000000016A0000-memory.dmp

                        Filesize

                        3.0MB