Analysis

  • max time kernel
    81s
  • max time network
    124s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230221-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230221-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02-03-2023 23:01

General

  • Target

    flashplayer.exe

  • Size

    15.3MB

  • MD5

    a8a8c089a6a8583b24c85f5a4a41f5ac

  • SHA1

    798c755fab62d9fc7019bd195026195d0d339a38

  • SHA256

    b6ba115c2b43d87aaddf0060c44726e7af1a12c9501fc63de652a9517d7367db

  • SHA512

    1636318338ae3eeb2d194e62463b279f9ff86e22e119ac6bb134d8ec958a69930815b6f84b9019342b62c470020465d3288bb592676318902e6cb765029d2f2f

  • SSDEEP

    393216:e+VtcTsNLwevhv3aDtxf0mAPXXprADug+js0+oEbiNO0TNPRU70hlz:e4tcCLwevhHPXXprADuO8PRUQht

Score
6/10

Malware Config

Signatures

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • 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 registry class 64 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 10 IoCs
  • Suspicious use of FindShellTrayWindow 27 IoCs
  • Suspicious use of SendNotifyMessage 24 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\flashplayer.exe
    "C:\Users\Admin\AppData\Local\Temp\flashplayer.exe"
    1⤵
    • Checks processor information in registry
    • Modifies registry class
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of SetWindowsHookEx
    PID:1612
  • C:\Windows\SysWOW64\DllHost.exe
    C:\Windows\SysWOW64\DllHost.exe /Processid:{AB8902B4-09CA-4BB6-B78D-A8F59079A8D5}
    1⤵
      PID:860
    • C:\Program Files\Google\Chrome\Application\chrome.exe
      "C:\Program Files\Google\Chrome\Application\chrome.exe"
      1⤵
      • Adds Run key to start application
      • Enumerates system info in registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of WriteProcessMemory
      PID:4672
      • 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=0x100,0x104,0x108,0xdc,0x10c,0x7ffab5629758,0x7ffab5629768,0x7ffab5629778
        2⤵
          PID:3868
        • 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=1800 --field-trial-handle=1816,i,7334893918514219992,9515298056055204001,131072 /prefetch:2
          2⤵
            PID:1568
          • 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=2168 --field-trial-handle=1816,i,7334893918514219992,9515298056055204001,131072 /prefetch:8
            2⤵
              PID:4168
            • 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=2228 --field-trial-handle=1816,i,7334893918514219992,9515298056055204001,131072 /prefetch:8
              2⤵
                PID:1180
              • C:\Program Files\Google\Chrome\Application\chrome.exe
                "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --display-capture-permissions-policy-allowed --enable-chrome-cart --first-renderer-process --lang=en-US --device-scale-factor=1 --num-raster-threads=2 --enable-main-frame-before-activation --renderer-client-id=6 --mojo-platform-channel-handle=3240 --field-trial-handle=1816,i,7334893918514219992,9515298056055204001,131072 /prefetch:1
                2⤵
                  PID:216
                • C:\Program Files\Google\Chrome\Application\chrome.exe
                  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --display-capture-permissions-policy-allowed --enable-chrome-cart --lang=en-US --device-scale-factor=1 --num-raster-threads=2 --enable-main-frame-before-activation --renderer-client-id=5 --mojo-platform-channel-handle=3376 --field-trial-handle=1816,i,7334893918514219992,9515298056055204001,131072 /prefetch:1
                  2⤵
                    PID:1196
                  • C:\Program Files\Google\Chrome\Application\chrome.exe
                    "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --display-capture-permissions-policy-allowed --enable-chrome-cart --disable-gpu-compositing --lang=en-US --device-scale-factor=1 --num-raster-threads=2 --enable-main-frame-before-activation --renderer-client-id=7 --mojo-platform-channel-handle=4628 --field-trial-handle=1816,i,7334893918514219992,9515298056055204001,131072 /prefetch:1
                    2⤵
                      PID:3908
                    • 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=4740 --field-trial-handle=1816,i,7334893918514219992,9515298056055204001,131072 /prefetch:8
                      2⤵
                        PID:4572
                      • 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=4876 --field-trial-handle=1816,i,7334893918514219992,9515298056055204001,131072 /prefetch:8
                        2⤵
                          PID:3800
                        • C:\Program Files\Google\Chrome\Application\chrome.exe
                          "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --display-capture-permissions-policy-allowed --enable-chrome-cart --disable-gpu-compositing --lang=en-US --device-scale-factor=1 --num-raster-threads=2 --enable-main-frame-before-activation --renderer-client-id=10 --mojo-platform-channel-handle=4868 --field-trial-handle=1816,i,7334893918514219992,9515298056055204001,131072 /prefetch:1
                          2⤵
                            PID:2960
                        • 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:4908

                          Network

                          MITRE ATT&CK Matrix ATT&CK v6

                          Persistence

                          Registry Run Keys / Startup Folder

                          1
                          T1060

                          Defense Evasion

                          Modify Registry

                          1
                          T1112

                          Discovery

                          System Information Discovery

                          3
                          T1082

                          Query Registry

                          2
                          T1012

                          Replay Monitor

                          Loading Replay Monitor...

                          Downloads

                          • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Code Cache\js\index-dir\the-real-index
                            Filesize

                            144B

                            MD5

                            fab64d5a2079a7ba01bf537b67425d19

                            SHA1

                            ca31584f933a023857049a4b74c5bdd156237739

                            SHA256

                            c9da2e8f7d1029475961ef170553d43ab04789ff27643efe1af2069b9342829f

                            SHA512

                            8d9ddaa1cff7898304283db22ae5bf04d471b0f286166bbdb1ed942dca02e3d06d27051752770149f7490b955b1869711314d5ee758408e3f779dbe597d2c099

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

                            264KB

                            MD5

                            f50f89a0a91564d0b8a211f8921aa7de

                            SHA1

                            112403a17dd69d5b9018b8cede023cb3b54eab7d

                            SHA256

                            b1e963d702392fb7224786e7d56d43973e9b9efd1b89c17814d7c558ffc0cdec

                            SHA512

                            bf8cda48cf1ec4e73f0dd1d4fa5562af1836120214edb74957430cd3e4a2783e801fa3f4ed2afb375257caeed4abe958265237d6e0aacf35a9ede7a2e8898d58

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

                            6KB

                            MD5

                            7762f222de53149b3c6b4ef896692fe3

                            SHA1

                            8a2bc3be09e73b9eba885b7c89af7bc73998a5bd

                            SHA256

                            ca02cfc09206afe3122993bd8ad75dc1aad740eb33a11d08d9a21fee3aed98b3

                            SHA512

                            fb102b704eb7266a2e38b1b4c69e7c9086bbc2c3267d7708fa3e894b07a96ed3c1b0583ff84e67a40ca0862631d9ddfcc1459c82d8a2f8e28d6283cdf941915b

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

                            15KB

                            MD5

                            b14a12a015c8f36f5f192c129636136d

                            SHA1

                            2bde3886daed5b6912250ee1c1dcac3de793c43b

                            SHA256

                            ab7f55a6e55318a3e9dce045a73d51fe67009fbec40396665660c46cba7a49a8

                            SHA512

                            04af9d59fe4affde5837720eddc56eed8fd70f64c3e148961be9a2f498739f5f256769b6c51e6a8f3761d09411584c5101f14fae05d2015a332e0f7a585bcac4

                          • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Local State
                            Filesize

                            142KB

                            MD5

                            7ea2512d9c760bf69274fd6e96de26d1

                            SHA1

                            7072034cdfd22b102ed20861a0eee72085ff27d9

                            SHA256

                            e6870c4d3f7dd3483125f9cbed9060e805d88f2229f7f1f5c043c8ab78a355f1

                            SHA512

                            fded3f01ddf2dff29880248e849074bd8dc20fd9079d0e90339e691f2db94e9bde6bdf736e93921091b550685bda5db8e6b14c4239e0f7d870d22d88079569fc

                          • C:\Users\Admin\AppData\Local\Microsoft\Windows\Explorer\iconcache_idx.db
                            Filesize

                            28KB

                            MD5

                            fe1a05788125684c3abf20b1cf4880ad

                            SHA1

                            557045eaefefd64008b28aa549b5bf391b2cb81c

                            SHA256

                            af34a33b999ecfdd827cce82c13d231cd38eeb66bb13f54120bce604d1d234f0

                            SHA512

                            8cf592bc1923dfe66161eb2fd2f0275073832c6af7e09c5c6e14f9bfb2e16f2d84e535366eaa3e7fdfa9f9b839b546746558a6a00fac42f32cf76af49248cd09

                          • \??\pipe\crashpad_4672_MVIXVVLUVJKNXTNK
                            MD5

                            d41d8cd98f00b204e9800998ecf8427e

                            SHA1

                            da39a3ee5e6b4b0d3255bfef95601890afd80709

                            SHA256

                            e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

                            SHA512

                            cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

                          • memory/1568-192-0x00007FFAD37F0000-0x00007FFAD37F1000-memory.dmp
                            Filesize

                            4KB

                          • memory/1612-180-0x0000000005EF0000-0x0000000005EF1000-memory.dmp
                            Filesize

                            4KB

                          • memory/3800-216-0x0000028536CC0000-0x0000028536CC1000-memory.dmp
                            Filesize

                            4KB

                          • memory/4572-213-0x000001AA5D760000-0x000001AA5D761000-memory.dmp
                            Filesize

                            4KB

                          • memory/4572-214-0x00007FFAD2A80000-0x00007FFAD2A81000-memory.dmp
                            Filesize

                            4KB