Analysis

  • max time kernel
    139s
  • max time network
    158s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-11-2022 07:25

General

  • Target

    8bffaa7522696c6760727929ec1c15b5aa346333f2c38833d23fbd5ed5765f13.exe

  • Size

    1.0MB

  • MD5

    113c46ff43811083942746787c74670e

  • SHA1

    4ccf9e38b219780b732f829a67bf4737a58a80bf

  • SHA256

    8bffaa7522696c6760727929ec1c15b5aa346333f2c38833d23fbd5ed5765f13

  • SHA512

    d9cca0c584c19a0ef8f247a865f8bb9ccb0d92f577ca32597c21fd15c884d14fc8d9c81fc0f0ad43f182a48b72912ef4d04e9c633eb9d3cbf84bb8e36d885488

  • SSDEEP

    24576:Kp/LIlPvXbXPHyJr1zGmWw3fCnJwgPF2BBYR:Kx8lPDshGXwPUJwgonY

Malware Config

Signatures

  • Blocklisted process makes network request 3 IoCs
  • Sets DLL path for service in the registry 2 TTPs 1 IoCs
  • Sets service image path in registry 2 TTPs 1 IoCs
  • Loads dropped DLL 3 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
  • Accesses Microsoft Outlook profiles 1 TTPs 4 IoCs
  • 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 SetThreadContext 1 IoCs
  • Drops file in Program Files directory 34 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 IoCs
  • Checks processor information in registry 2 TTPs 64 IoCs

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

  • Modifies registry class 5 IoCs
  • Modifies system certificate store 2 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 16 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8bffaa7522696c6760727929ec1c15b5aa346333f2c38833d23fbd5ed5765f13.exe
    "C:\Users\Admin\AppData\Local\Temp\8bffaa7522696c6760727929ec1c15b5aa346333f2c38833d23fbd5ed5765f13.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3612
    • C:\Windows\SysWOW64\rundll32.exe
      "C:\Windows\system32\rundll32.exe" "C:\Users\Admin\AppData\Local\Temp\Uayqupoehp.tmp",Rrptfe
      2⤵
      • Blocklisted process makes network request
      • Sets DLL path for service in the registry
      • Sets service image path in registry
      • Loads dropped DLL
      • Accesses Microsoft Outlook accounts
      • Accesses Microsoft Outlook profiles
      • Suspicious use of SetThreadContext
      • Drops file in Program Files directory
      • Checks processor information in registry
      • Modifies system certificate store
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      • outlook_office_path
      • outlook_win_path
      PID:2856
      • C:\Windows\system32\rundll32.exe
        "C:\Windows\system32\rundll32.exe" "C:\Windows\system32\shell32.dll",#61 14212
        3⤵
        • Modifies registry class
        • Suspicious use of FindShellTrayWindow
        PID:308
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /End /tn \Microsoft\Windows\Wininet\CacheTask
        3⤵
          PID:1652
        • C:\Windows\SysWOW64\schtasks.exe
          schtasks /Run /tn \Microsoft\Windows\Wininet\CacheTask
          3⤵
            PID:3380
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3612 -s 528
          2⤵
          • Program crash
          PID:4964
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 3612 -ip 3612
        1⤵
          PID:5052
        • C:\Windows\System32\rundll32.exe
          C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
          1⤵
            PID:4112
          • C:\Windows\SysWOW64\svchost.exe
            C:\Windows\SysWOW64\svchost.exe -k LocalService
            1⤵
            • Loads dropped DLL
            • Checks processor information in registry
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of WriteProcessMemory
            PID:2708
            • C:\Windows\SysWOW64\rundll32.exe
              "C:\Windows\system32\rundll32.exe" "c:\program files (x86)\reference assemblies\microsoft\readoutloud.dll",aipAdmg=
              2⤵
              • Loads dropped DLL
              • Checks processor information in registry
              PID:2452

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Program Files (x86)\Reference Assemblies\Microsoft\ReadOutLoud.dll

            Filesize

            774KB

            MD5

            f4e27b5f133a3388a49b126e47985a46

            SHA1

            0a7c9b0a5ecda6873c81487e2122d25e0e3f2c30

            SHA256

            279b9c284cfa34962392511a8bbb8dcab7bf67c6997fb6bd1a7dd2a043023e1f

            SHA512

            e50d8d23b621d265751566934f6ce083c6a09a1008a2c2bc030b29f86753cbf118f29f3b9eade06fddd8c18398871ec32d2f477848b71abe50979d9b17359c08

          • C:\Program Files (x86)\Reference Assemblies\Microsoft\ReadOutLoud.dll

            Filesize

            774KB

            MD5

            f4e27b5f133a3388a49b126e47985a46

            SHA1

            0a7c9b0a5ecda6873c81487e2122d25e0e3f2c30

            SHA256

            279b9c284cfa34962392511a8bbb8dcab7bf67c6997fb6bd1a7dd2a043023e1f

            SHA512

            e50d8d23b621d265751566934f6ce083c6a09a1008a2c2bc030b29f86753cbf118f29f3b9eade06fddd8c18398871ec32d2f477848b71abe50979d9b17359c08

          • C:\ProgramData\{089124D9-86A1-7079-846D-B6413FD76F79}\C2RManifest.Excel.Excel.x-none.msi.16.x-none.xml

            Filesize

            149KB

            MD5

            95fdba87a0835dce3d259c38ed7f9371

            SHA1

            cb539d0d5cf31d38ec78c1325ea4c1710b8ec89c

            SHA256

            f84ae8cef222f02e3fc7d05f76eb8bedc767de9310e8674eda522ae7c45bdd64

            SHA512

            ce0e66eb46fc6c97d1e05258e38fc58272989101c4f99c5e836a9600d2969f4a256c097da8c3ea6a8b7ee0b9471c3b674cdb88ff6281e7b4eb9e7f439465b96b

          • C:\ProgramData\{089124D9-86A1-7079-846D-B6413FD76F79}\C2RManifest.Word.Word.x-none.msi.16.x-none.xml

            Filesize

            93KB

            MD5

            2e8a1f4e2c4678c174e9f328fc9c0846

            SHA1

            39a7038d855f22e339bd26e578d02804ed7ec3b4

            SHA256

            846687ca03420046249f3525dc02ee08099671d8a3f48f42046febff9eedc877

            SHA512

            21cc574180abb4068293e44eb42820f57d4fc238a7677443997afa289a15c85f6c51311875a2c10edfe974dc56f484da0fe5dfeb2c0a4ca34ab977e1b0c2dd75

          • C:\ProgramData\{089124D9-86A1-7079-846D-B6413FD76F79}\C2RManifest.powerpointmui.msi.16.en-us.xml

            Filesize

            27KB

            MD5

            e9ed7134ebf28fea3f7aa5691a28438a

            SHA1

            ea1e55c279ed9f8dae333ae436204d8d67d46adf

            SHA256

            8fe0a353ce49d8bf91b019174a72f92c70870d8215b3afa565a01eb041569e28

            SHA512

            535d34d3e428d421793e147e8bf1e344e9a2da449ce25103bf4d72c7b421db429304d5eaebbe305ac566b4b172984677885dcab2aa118441a3df38c57fd04dd9

          • C:\ProgramData\{089124D9-86A1-7079-846D-B6413FD76F79}\Microsoft.Microsoft3DViewer_6.1908.2042.0_neutral_~_8wekyb3d8bbwe.xml

            Filesize

            7KB

            MD5

            f4b603547f83e5cb97e4ad4538aac812

            SHA1

            c225c8c582ad9fdd9e81291fcb4af711deb92508

            SHA256

            268d79fcfc4de72faeb0433e371176fedcfc0c33b0c9484b02c9936c3c6d4218

            SHA512

            d285740008ed9e6dbfc4284dfb5418e130f1eb4b2fb758fb2f8e86e0c5c557e050b415eaa66858c37cd95ddfd4ed6a40be77a333f254ec142982d2e3f3cc37cf

          • C:\ProgramData\{089124D9-86A1-7079-846D-B6413FD76F79}\Microsoft.People_10.1902.633.0_x64__8wekyb3d8bbwe.xml

            Filesize

            15KB

            MD5

            2f71d0396b93381c1fd86bf822612868

            SHA1

            d0801700dd00a51276f32c6ed19f5b713b5db825

            SHA256

            0543ea8c8efce3d69431f57affc2cfa44df1b9244a25ed080e4b2014d0419026

            SHA512

            67022ce5c41641799abff9e68cb3f049c5d932aea5c6fd8748469e2e7f51f987f1bdfc7d831a8d11a69d99a77cc363c51db8be6ad50e4014eb63a15c1f25a722

          • C:\ProgramData\{089124D9-86A1-7079-846D-B6413FD76F79}\Microsoft_Office_OfficeTelemetryAgentFallBack2016.xml

            Filesize

            3KB

            MD5

            1a3168a15983b890b16390a23a89a02e

            SHA1

            d56ce16d88d79159a27c2d1cd3770dc56d897ebe

            SHA256

            334782208e9520975f597b19a273fcc6f3a8a7caffd2e4fb22213f6b957f4946

            SHA512

            f2be33992fd70d90eb94973c19924229bb70da4ce21c9777cfccbf56b0635452b382d2846afe2b0cc80a83d3b6a2c855557855cfb22fc681d182b2b605daa668

          • C:\ProgramData\{089124D9-86A1-7079-846D-B6413FD76F79}\Tuririiowh.tmp

            Filesize

            3.5MB

            MD5

            62ea7726db9fc3a078eb06977f791f23

            SHA1

            8769e5973394fdbdc5a5e6369e2b53fbabff435f

            SHA256

            133fbeaf1b021b2d280fa44c58e4008f62e5c6bf513998c51dbbe9aac7df5ba9

            SHA512

            9cce0d075cb9e3ee8014336151b09482fc98639efc8dec30692c2d923acfa4b1a8d69a0a55467e29476fee164a2239860bcb808618846c30cf9c89ee4734537a

          • C:\ProgramData\{089124D9-86A1-7079-846D-B6413FD76F79}\resource.xml

            Filesize

            1KB

            MD5

            8a660378169f2615d70683a49d6540c9

            SHA1

            4e78f156eb4b8766568071e81b793f05b9ea7658

            SHA256

            f288b4ffdb060471a51dcea18c8e104c62cfcd8c37d7a41ee343145b4953cf46

            SHA512

            754bc1a9c90e4c4ea6cf1881d26c1afbb049870f41ff71c7c943726a1706f6b0b44a2f32742065f9d5eacc54d21cb54b76f5f17315af04614612f9cc58e46648

          • C:\ProgramData\{089124D9-86A1-7079-846D-B6413FD76F79}\stream.x64.en-us.hash

            Filesize

            128B

            MD5

            73f303800be636585f9ec14701cd8d5e

            SHA1

            456304dc888d5eaa159fa0fa34fc9bcc3bacb633

            SHA256

            c8e3762853e17a3bd49882b0d36afa285bed5639f8f9e88f716c3942e28b6ace

            SHA512

            8a80ee6d1b074d68a55bbb3d5be251cfaae89b0345a6b0e84a6359e8c1453c8bf0969e6d33a7d0523d30d586c46c1eede9e71f7a89f7bc67ea0ad866671b81b4

          • C:\ProgramData\{089124D9-86A1-7079-846D-B6413FD76F79}\wmp.ico

            Filesize

            110KB

            MD5

            589ff0b7d4d0d3fced65c3eae6559657

            SHA1

            4be3e4221a429b347888bbe3635e377271974c7f

            SHA256

            0e96c027d23a57e95103d1b64e4c5b8a153402f05b756dfcb737459476aaae35

            SHA512

            4a12bac3f61964d6c5608bbb9067d7673cd5e5a22463f6d16f402954045692f43ef1ea32d405f452d415c859c30b217e9d250a1c5c85cfd629bd393824b6523b

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

            Filesize

            774KB

            MD5

            d5e88f35e214f2dff51a7d494316bac2

            SHA1

            6306dfa71c4e32dede210631cf90732693c0afcf

            SHA256

            f1828a7b26be78bb27df25b98762eb7dd7e49ee8582d5eee42ded05b0eebc1e4

            SHA512

            ff167f0379173f976e3f91f41f6c88e67b12dfb0386b66d19f78d3aa3f11534cf2ce1c1d753ada0133cf291adca7ad8367087b791a5c05eaf371dd877ebcce1d

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

            Filesize

            774KB

            MD5

            d5e88f35e214f2dff51a7d494316bac2

            SHA1

            6306dfa71c4e32dede210631cf90732693c0afcf

            SHA256

            f1828a7b26be78bb27df25b98762eb7dd7e49ee8582d5eee42ded05b0eebc1e4

            SHA512

            ff167f0379173f976e3f91f41f6c88e67b12dfb0386b66d19f78d3aa3f11534cf2ce1c1d753ada0133cf291adca7ad8367087b791a5c05eaf371dd877ebcce1d

          • \??\c:\program files (x86)\reference assemblies\microsoft\readoutloud.dll

            Filesize

            774KB

            MD5

            f4e27b5f133a3388a49b126e47985a46

            SHA1

            0a7c9b0a5ecda6873c81487e2122d25e0e3f2c30

            SHA256

            279b9c284cfa34962392511a8bbb8dcab7bf67c6997fb6bd1a7dd2a043023e1f

            SHA512

            e50d8d23b621d265751566934f6ce083c6a09a1008a2c2bc030b29f86753cbf118f29f3b9eade06fddd8c18398871ec32d2f477848b71abe50979d9b17359c08

          • memory/308-150-0x0000000000770000-0x0000000000A02000-memory.dmp

            Filesize

            2.6MB

          • memory/308-148-0x0000021D1EA70000-0x0000021D1EBB0000-memory.dmp

            Filesize

            1.2MB

          • memory/308-147-0x0000021D1EA70000-0x0000021D1EBB0000-memory.dmp

            Filesize

            1.2MB

          • memory/308-151-0x0000021D1EC00000-0x0000021D1EEA4000-memory.dmp

            Filesize

            2.6MB

          • memory/308-146-0x00007FF7167E6890-mapping.dmp

          • memory/1652-171-0x0000000000000000-mapping.dmp

          • memory/2452-166-0x0000000000000000-mapping.dmp

          • memory/2452-169-0x0000000005320000-0x0000000005E81000-memory.dmp

            Filesize

            11.4MB

          • memory/2452-170-0x0000000005320000-0x0000000005E81000-memory.dmp

            Filesize

            11.4MB

          • memory/2708-168-0x0000000003C60000-0x00000000047C1000-memory.dmp

            Filesize

            11.4MB

          • memory/2708-156-0x0000000003C60000-0x00000000047C1000-memory.dmp

            Filesize

            11.4MB

          • memory/2708-173-0x0000000003C60000-0x00000000047C1000-memory.dmp

            Filesize

            11.4MB

          • memory/2856-142-0x00000000043C0000-0x0000000004500000-memory.dmp

            Filesize

            1.2MB

          • memory/2856-141-0x00000000043C0000-0x0000000004500000-memory.dmp

            Filesize

            1.2MB

          • memory/2856-149-0x0000000004439000-0x000000000443B000-memory.dmp

            Filesize

            8KB

          • memory/2856-145-0x00000000043C0000-0x0000000004500000-memory.dmp

            Filesize

            1.2MB

          • memory/2856-144-0x00000000043C0000-0x0000000004500000-memory.dmp

            Filesize

            1.2MB

          • memory/2856-143-0x00000000043C0000-0x0000000004500000-memory.dmp

            Filesize

            1.2MB

          • memory/2856-132-0x0000000000000000-mapping.dmp

          • memory/2856-152-0x0000000004CB0000-0x0000000005811000-memory.dmp

            Filesize

            11.4MB

          • memory/2856-140-0x00000000043C0000-0x0000000004500000-memory.dmp

            Filesize

            1.2MB

          • memory/2856-139-0x0000000004CB0000-0x0000000005811000-memory.dmp

            Filesize

            11.4MB

          • memory/2856-138-0x0000000004CB0000-0x0000000005811000-memory.dmp

            Filesize

            11.4MB

          • memory/3380-172-0x0000000000000000-mapping.dmp

          • memory/3612-137-0x0000000000400000-0x00000000028BA000-memory.dmp

            Filesize

            36.7MB

          • memory/3612-136-0x00000000048A0000-0x00000000049C5000-memory.dmp

            Filesize

            1.1MB

          • memory/3612-135-0x00000000047B2000-0x0000000004894000-memory.dmp

            Filesize

            904KB