Analysis

  • max time kernel
    112s
  • max time network
    128s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    29-10-2024 03:17

General

  • Target

    Unlock_Tool_2.4.1.rar

  • Size

    53.6MB

  • MD5

    2b6f6b54f320a7322f04426a99085966

  • SHA1

    b014af8aaa98fa422265de9fa4522cbdef12641f

  • SHA256

    28bf5e3b9fb5485c3e98fcf3a98ed61884bbf9419fddad53855ce08284d6b97c

  • SHA512

    4645fa85b041e77a1318e7b4aea73281f85586ca3280a3bb77cca47999f0c786ee178a406c1f74d5e12562a3548ce442ff345ea73204e9c010474ff610dd784e

  • SSDEEP

    1572864:aMlvVJdOWRPdH2N0injqfW6Z8MkK1kP4qq7nGcuz6:rlNJdJHc7n+f98MP1NJ46

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 6 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.

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • System Location Discovery: System Language Discovery 1 TTPs 2 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
  • Opens file in notepad (likely ransom note) 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 24 IoCs
  • Suspicious use of FindShellTrayWindow 39 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Program Files\7-Zip\7zFM.exe
    "C:\Program Files\7-Zip\7zFM.exe" "C:\Users\Admin\AppData\Local\Temp\Unlock_Tool_2.4.1.rar"
    1⤵
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    PID:348
  • C:\Windows\system32\NOTEPAD.EXE
    "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\Desktop\TEMP\Readme.txt
    1⤵
    • Opens file in notepad (likely ransom note)
    PID:1044
  • C:\Users\Admin\Desktop\TEMP\Unlock_Tool_2.4.1.exe
    "C:\Users\Admin\Desktop\TEMP\Unlock_Tool_2.4.1.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1384
    • C:\Windows\BitLockerDiscoveryVolumeContents\BitLockerToGo.exe
      "C:\Windows\BitLockerDiscoveryVolumeContents\BitLockerToGo.exe"
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2684
      • C:\Program Files\Google\Chrome\Application\chrome.exe
        "C:\Program Files\Google\Chrome\Application\chrome.exe" --remote-debugging-port=9223 --profile-directory="Default"
        3⤵
        • 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:2672
        • 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,0x7fef6919758,0x7fef6919768,0x7fef6919778
          4⤵
            PID:2724
          • C:\Windows\system32\ctfmon.exe
            ctfmon.exe
            4⤵
              PID:2260
            • 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=1392,i,17722972775367474641,10609067521432450572,131072 /prefetch:2
              4⤵
                PID:2408
              • 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=1532 --field-trial-handle=1392,i,17722972775367474641,10609067521432450572,131072 /prefetch:8
                4⤵
                  PID:2404
                • 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=1392,i,17722972775367474641,10609067521432450572,131072 /prefetch:8
                  4⤵
                    PID:2652
                  • 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=2348 --field-trial-handle=1392,i,17722972775367474641,10609067521432450572,131072 /prefetch:1
                    4⤵
                    • Uses browser remote debugging
                    PID:2092
                  • 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=2360 --field-trial-handle=1392,i,17722972775367474641,10609067521432450572,131072 /prefetch:1
                    4⤵
                    • Uses browser remote debugging
                    PID:840
                  • 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=1008 --field-trial-handle=1392,i,17722972775367474641,10609067521432450572,131072 /prefetch:2
                    4⤵
                      PID:1632
                    • 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=3348 --field-trial-handle=1392,i,17722972775367474641,10609067521432450572,131072 /prefetch:1
                      4⤵
                      • Uses browser remote debugging
                      PID:3060
                    • 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=3412 --field-trial-handle=1392,i,17722972775367474641,10609067521432450572,131072 /prefetch:8
                      4⤵
                        PID:1920
                      • 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=3636 --field-trial-handle=1392,i,17722972775367474641,10609067521432450572,131072 /prefetch:8
                        4⤵
                          PID:1496
                        • 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=3952 --field-trial-handle=1392,i,17722972775367474641,10609067521432450572,131072 /prefetch:8
                          4⤵
                            PID:2112
                    • 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:612
                      • C:\Users\Admin\Desktop\TEMP\Unlock_Tool_2.4.1.exe
                        "C:\Users\Admin\Desktop\TEMP\Unlock_Tool_2.4.1.exe"
                        1⤵
                          PID:1476
                          • C:\Windows\BitLockerDiscoveryVolumeContents\BitLockerToGo.exe
                            "C:\Windows\BitLockerDiscoveryVolumeContents\BitLockerToGo.exe"
                            2⤵
                              PID:1880

                          Network

                          MITRE ATT&CK Enterprise v15

                          Replay Monitor

                          Loading Replay Monitor...

                          Downloads

                          • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\GCM Store\Encryption\000006.dbtmp

                            Filesize

                            16B

                            MD5

                            aefd77f47fb84fae5ea194496b44c67a

                            SHA1

                            dcfbb6a5b8d05662c4858664f81693bb7f803b82

                            SHA256

                            4166bf17b2da789b0d0cc5c74203041d98005f5d4ef88c27e8281e00148cd611

                            SHA512

                            b733d502138821948267a8b27401d7c0751e590e1298fda1428e663ccd02f55d0d2446ff4bc265bdcdc61f952d13c01524a5341bc86afc3c2cde1d8589b2e1c3

                          • 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\Preferences

                            Filesize

                            5KB

                            MD5

                            589f8ced4cd339f91f990f64368caac1

                            SHA1

                            338ad5b8f4c152ca22fd3377d018f2bc877aeab7

                            SHA256

                            3bf7dbc9017355bdb234a5bd83b54d7a78ff2db82250dfb230ace19fc4f7c513

                            SHA512

                            c005fd7bd822f55939afcc0987774e36579306b03c12992894987942e242005d5f4bbf58afd1d14a416028b3013c27c22cbfd8423d6013790a458081fae86a6e

                          • 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\Cab2D2A.tmp

                            Filesize

                            70KB

                            MD5

                            49aebf8cbd62d92ac215b2923fb1b9f5

                            SHA1

                            1723be06719828dda65ad804298d0431f6aff976

                            SHA256

                            b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

                            SHA512

                            bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

                          • C:\Users\Admin\AppData\Local\Temp\Tar2D5C.tmp

                            Filesize

                            181KB

                            MD5

                            4ea6026cf93ec6338144661bf1202cd1

                            SHA1

                            a1dec9044f750ad887935a01430bf49322fbdcb7

                            SHA256

                            8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

                            SHA512

                            6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

                          • C:\Users\Admin\AppData\Local\Temp\locales\resources\Data\level4.resS

                            Filesize

                            128KB

                            MD5

                            64d183ad524dfcd10a7c816fbca3333d

                            SHA1

                            5a180d5c1f42a0deaf475b7390755b3c0ecc951c

                            SHA256

                            5a666340f42f0f985772024d90a83d15c9a241a68d58205cd4afbb1a31f1621a

                            SHA512

                            3cab59dff09981f49d1070fba06a781439bb1ea2dae0cfcb937d9875bbe9e866be2c951cfc6a3ca4a92aea79dd3e9c4792a765f5a06f230a57dabcab2f0b3c1e

                          • C:\Users\Admin\Desktop\TEMP\Readme.txt

                            Filesize

                            104B

                            MD5

                            634f17ce8616e8719ee6fd57e83675e1

                            SHA1

                            faaaea3c399fa13729770161ea3fbc1c563c994f

                            SHA256

                            4d41ea0427cc7220ad91a5b391a0fd9b964e9cf39ec406a24a17a3ed81ecbe9a

                            SHA512

                            f9c580d6650e8097071f92fe298bec11e66848158d66581c8d15a1cd051e6cbd51de0e0d94307959a1cd3a3c6efb7872bb290af446dbe0ad041c8a2df0a2b1b5

                          • C:\Users\Admin\Desktop\TEMP\Unlock_Tool_2.4.1.exe

                            Filesize

                            24.7MB

                            MD5

                            45f6af3f1ad22c109e6d1792de150d6e

                            SHA1

                            5fc5bc9c90ee17197abdec68b6bf1e4a04f62d3c

                            SHA256

                            6dfe4ea4f42f1cd4111a449e6fcae596c3884f6016f0ed5d0f36adff1acf0d88

                            SHA512

                            e328e51323889f5620aa734ab057c266a0fac7a843442aed5192b6d74b8cee4a6a0ea0e0698d40f1f9b4922e2cb6c58dd18e52e206fa388e668e6557e76e06e5

                          • C:\Users\Admin\Desktop\TEMP\locales\resources\Data\sharedassets0.assets.resS

                            Filesize

                            900KB

                            MD5

                            db887602126900f414e141c698776204

                            SHA1

                            4cf6ac2535552718bfd28162c15ec0ab0545c58b

                            SHA256

                            7bf15ec0a512b66a888f0d08960c2815e971ea608f93e99cb76d697680bf5c2e

                            SHA512

                            0e162b6623cbd87f73859fbf03217e4afad603304b823a44da9905559251984a05e4651232957f7308a7a4b723b9f29279ab010ae76eb93cd819306b1ce19927

                          • \ProgramData\chrome.dll

                            Filesize

                            676KB

                            MD5

                            eda18948a989176f4eebb175ce806255

                            SHA1

                            ff22a3d5f5fb705137f233c36622c79eab995897

                            SHA256

                            81a4f37c5495800b7cc46aea6535d9180dadb5c151db6f1fd1968d1cd8c1eeb4

                            SHA512

                            160ed9990c37a4753fc0f5111c94414568654afbedc05308308197df2a99594f2d5d8fe511fd2279543a869ed20248e603d88a0b9b8fb119e8e6131b0c52ff85

                          • memory/1880-1532-0x00000000001A0000-0x00000000004A0000-memory.dmp

                            Filesize

                            3.0MB

                          • memory/1880-1529-0x00000000001A0000-0x00000000004A0000-memory.dmp

                            Filesize

                            3.0MB

                          • memory/1880-1526-0x00000000001A0000-0x00000000004A0000-memory.dmp

                            Filesize

                            3.0MB

                          • memory/2684-1248-0x0000000000400000-0x0000000000700000-memory.dmp

                            Filesize

                            3.0MB

                          • memory/2684-1503-0x0000000000400000-0x0000000000700000-memory.dmp

                            Filesize

                            3.0MB

                          • memory/2684-1426-0x0000000019A20000-0x0000000019C7F000-memory.dmp

                            Filesize

                            2.4MB

                          • memory/2684-1389-0x0000000000400000-0x0000000000700000-memory.dmp

                            Filesize

                            3.0MB

                          • memory/2684-1247-0x0000000000400000-0x0000000000700000-memory.dmp

                            Filesize

                            3.0MB