Analysis

  • max time kernel
    209s
  • max time network
    219s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28-11-2024 01:43

General

  • Target

    vvmchet-windovv.msi

  • Size

    313.0MB

  • MD5

    b433ac6a628665157c009834c3c41634

  • SHA1

    567f922c4595d535e96b21741156f29ebb61341f

  • SHA256

    6c77bf7ca5b7bb5ce7e926e8981600f7c9fda533bbbf5df1a544c37d892948bd

  • SHA512

    06dff3810cf41bc72187aee8c0ca817a0590f5bec523db0adda2e64c3e45dc754762576b37b41c21d4b7e37da36aa75969d561809c2e233bff8adb3f299519bd

  • SSDEEP

    6291456:68BnEZsQe41dIIdVAUnRYJHqxVHerMSlcF8aLPIY7hcU6T8V7:0M4zIWVAVkKraLIYr6AV7

Malware Config

Signatures

  • Detect PurpleFox Rootkit 2 IoCs

    Detect PurpleFox Rootkit.

  • PurpleFox

    PurpleFox is an exploit kit used to distribute other malware families and first seen in 2018.

  • Purplefox family
  • Enumerates connected drives 3 TTPs 46 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Program Files directory 2 IoCs
  • Drops file in Windows directory 10 IoCs
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 21 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Event Triggered Execution: Installer Packages 2 TTPs 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Checks SCSI registry key(s) 3 TTPs 5 IoCs

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

  • Modifies data under HKEY_USERS 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 3 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs
  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

Processes

  • C:\Windows\system32\msiexec.exe
    msiexec.exe /I C:\Users\Admin\AppData\Local\Temp\vvmchet-windovv.msi
    1⤵
    • Enumerates connected drives
    • Event Triggered Execution: Installer Packages
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    PID:2172
  • C:\Windows\system32\msiexec.exe
    C:\Windows\system32\msiexec.exe /V
    1⤵
    • Enumerates connected drives
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Modifies data under HKEY_USERS
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3660
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding CB547D4BBD557AC969CD0492B1975350 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      PID:1020
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:4572
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 48B9F2FECCD298EE5CDA3532CEFC99AE
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:844
      • C:\Windows\System32\MsiExec.exe
        C:\Windows\System32\MsiExec.exe -Embedding 887D1F0B2EF98F1E105A78A0C0D74175
        2⤵
        • Loads dropped DLL
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:1124
        • C:\Users\Admin\ABD212C3-2D23-4EED-A5CB-0000D4375392\down.exe
          C:\Users\Admin\ABD212C3-2D23-4EED-A5CB-0000D4375392\\down.exe
          3⤵
          • Suspicious use of SetThreadContext
          • Executes dropped EXE
          • Loads dropped DLL
          • Suspicious use of WriteProcessMemory
          PID:4464
          • C:\Users\Admin\ABD212C3-2D23-4EED-A5CB-0000D4375392\down.exe
            C:\Users\Admin\ABD212C3-2D23-4EED-A5CB-0000D4375392\down.exe /aut
            4⤵
            • Executes dropped EXE
            • Loads dropped DLL
            PID:1276
          • C:\Windows\system32\colorcpl.exe
            colorcpl.exe
            4⤵
              PID:4520
      • C:\Windows\system32\vssvc.exe
        C:\Windows\system32\vssvc.exe
        1⤵
        • Checks SCSI registry key(s)
        PID:3412
      • C:\Program Files (x86)\WeChatSetup\WeChatSetup\WeChatSetup\WeChatSetup.exe
        "C:\Program Files (x86)\WeChatSetup\WeChatSetup\WeChatSetup\WeChatSetup.exe"
        1⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:3272

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Config.Msi\e580144.rbs

        Filesize

        27KB

        MD5

        9c37e835ac445a3aeac88f85859f4a0a

        SHA1

        568a33455d6c6f82bd4ad2350b0492d380f93699

        SHA256

        2c70c6c24b96229da1b3449a3460db02b8c0933cbdcf15df2d12d778a7f22dc7

        SHA512

        9c5b17fe28e379de196b9e6706b3f543f35d03530b17812b98294eb57240407e3ea4be32b4ec1078dffcc78869394c252be099948454e25e1c02c79445714960

      • C:\Users\Admin\ABD212C3-2D23-4EED-A5CB-0000D4375392\MSVCP140.dll

        Filesize

        613KB

        MD5

        c1b066f9e3e2f3a6785161a8c7e0346a

        SHA1

        8b3b943e79c40bc81fdac1e038a276d034bbe812

        SHA256

        99e3e25cda404283fbd96b25b7683a8d213e7954674adefa2279123a8d0701fd

        SHA512

        36f9e6c86afbd80375295238b67e4f472eb86fcb84a590d8dba928d4e7a502d4f903971827fdc331353e5b3d06616664450759432fdc8d304a56e7dacb84b728

      • C:\Users\Admin\ABD212C3-2D23-4EED-A5CB-0000D4375392\VCRUNTIME140.dll

        Filesize

        116KB

        MD5

        e9b690fbe5c4b96871214379659dd928

        SHA1

        c199a4beac341abc218257080b741ada0fadecaf

        SHA256

        a06c9ea4f815dac75d2c99684d433fbfc782010fae887837a03f085a29a217e8

        SHA512

        00cf9b22af6ebbc20d1b9c22fc4261394b7d98ccad4823abc5ca6fdac537b43a00db5b3829c304a85738be5107927c0761c8276d6cb7f80e90f0a2c991dbcd8c

      • C:\Users\Admin\ABD212C3-2D23-4EED-A5CB-0000D4375392\VCRUNTIME140_1.dll

        Filesize

        48KB

        MD5

        eb49c1d33b41eb49dfed58aafa9b9a8f

        SHA1

        61786eb9f3f996d85a5f5eea4c555093dd0daab6

        SHA256

        6d3a6cde6fc4d3c79aabf785c04d2736a3e2fd9b0366c9b741f054a13ecd939e

        SHA512

        d15905a3d7203b00181609f47ce6e4b9591a629f2bf26ff33bf964f320371e06d535912fda13987610b76a85c65c659adac62f6b3176dbca91a01374178cd5c6

      • C:\Users\Admin\ABD212C3-2D23-4EED-A5CB-0000D4375392\aut.png

        Filesize

        1.3MB

        MD5

        51698f9d781f9ba83b9d1896f047b666

        SHA1

        5e28f766d10af39ec28f46f20a8d047474135923

        SHA256

        300776a76cf4faaa2ef0d0928adf0bb9621ae486e316f81af8d71719d9f413cb

        SHA512

        cee9cb3c89b0a7defdc5cc61acc479f94a3e29556c9fec5ede12997cee8b67e780af443fae1f81399274e0602ac9102521e6389422ec9ede49e23647a256e952

      • C:\Users\Admin\ABD212C3-2D23-4EED-A5CB-0000D4375392\down.exe

        Filesize

        1.2MB

        MD5

        524b5640571507a6440ad71d9ba74742

        SHA1

        ac4e6c573b079abdd824b87d61f2c39d81c43afb

        SHA256

        e0a6674160fb7d16d76a75c8cc17e867c28cd0767d696a814c1d1b70740392f4

        SHA512

        4e21c02fb6323821c76c9bfab550f30864e594b96040be9139e87cfc53e38f3a8ffbea98e06757db22492d8a68f5d7f6c8aec74d41e449c3dab73add3184b251

      • C:\Users\Admin\ABD212C3-2D23-4EED-A5CB-0000D4375392\view.png

        Filesize

        2.5MB

        MD5

        16feaeba569c71a83a099bcdbc3da361

        SHA1

        907314e8b8a9b8a61e7eea9af1c466a0e60abb97

        SHA256

        ddf4875f5190ee8f64bf0851675df3ce6c5fb4580422187d704823f762fd733a

        SHA512

        318259c5b317972f1a17cf4717d3d332fd380cecb393312a04f4829b18b90362ec097b13fd3901788440d800dc7f26d30777ed5f418572aa2d39534478cd00c4

      • C:\Users\Admin\AppData\Local\Temp\MSIB7B7.tmp

        Filesize

        557KB

        MD5

        db7612f0fd6408d664185cfc81bef0cb

        SHA1

        19a6334ec00365b4f4e57d387ed885b32aa7c9aa

        SHA256

        e9e426b679b3efb233f03c696e997e2da3402f16a321e954b54454317fceb240

        SHA512

        25e129cb22aaabc68c42ecf10bb650ac4d0609b12c08703c780572bac7ecf4559fcc49cd595c56ea48cf55260a984cfa333c08307ffb7c62268b03fbecc724b9

      • C:\Windows\Installer\MSID7DB.tmp

        Filesize

        25KB

        MD5

        81902d13c01fd8a187f3a7f2b72d5dd0

        SHA1

        0ac01518c5588eb2788730c78f0c581f79cf2ed4

        SHA256

        eef31e9195cfacde7b4e7eb7384c8178d8811063b375fd4a28ae897cc180c6a6

        SHA512

        04d6e2e937328477803084e0ef9da2c3636cdc9d34af74e2d1871d7190be21cbb2771ae835175e104e24eccba52add1ba6f58407bfd522ef82b81d76e977f24c

      • C:\users\public\documents\all.zip

        Filesize

        2.5MB

        MD5

        30bcd4bbebd8869e3c9d45ab6ccc569b

        SHA1

        61d6f3c40bf0e79c9014fcd56b9fa15f815ff0b2

        SHA256

        603842b9178b255b621e0b0983d6223c94594732544396c3db695c9e26628ed2

        SHA512

        660213e9178b4856e7c985e8f4e73f20d7de5bd5480ae0c587ffb8cc6172e1ea7e325b8844816f91a235e5ad83cd501d6bc9b0d76d1e9f8352d0b8856d126765

      • \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2

        Filesize

        24.1MB

        MD5

        7918e6f139e2b354361dfd1918761022

        SHA1

        2a9aa3b8c537482bf44e90232288dbaa7bee04a0

        SHA256

        b0640d0ae5c1abe410d119ae3fb5aacfd5dcaed11d4fa582e93a8efd045829b9

        SHA512

        6694698669a0245eecd637fa6a698119f28442ec6c107a8592184d1d3f4ae4059dd1056f4997c081bd380ccda6c1a38440f3721dc748d0bc238b2f7694629b56

      • \??\Volume{fb297ba4-0000-0000-0000-d01200000000}\System Volume Information\SPP\OnlineMetadataCache\{cfa000ac-8e21-4bb8-84c0-db3753c3acc2}_OnDiskSnapshotProp

        Filesize

        6KB

        MD5

        97177ddd28c3005aba8817b62e7888a1

        SHA1

        5b09aed1f42aec2bd466aaa53145b5e8b4fcc491

        SHA256

        79f0863fb0211064fac9b66e0d36ff394ad75b6e152cbc70e6298cc42539b3ef

        SHA512

        9c64070a4ace789a91167f753b8de40a9810904ba9ffec89cad3ea879fd6fb43f0617f2cdbaa1716537451ea3186ddd5e42dc43c375615e9fef95652851ef7b1

      • memory/3272-117-0x0000000008F70000-0x000000000901B000-memory.dmp

        Filesize

        684KB

      • memory/3272-124-0x0000000008F70000-0x000000000901B000-memory.dmp

        Filesize

        684KB

      • memory/3272-106-0x0000000008F70000-0x000000000901B000-memory.dmp

        Filesize

        684KB

      • memory/3272-107-0x0000000008F70000-0x000000000901B000-memory.dmp

        Filesize

        684KB

      • memory/3272-116-0x0000000008F70000-0x000000000901B000-memory.dmp

        Filesize

        684KB

      • memory/3272-115-0x0000000008F70000-0x000000000901B000-memory.dmp

        Filesize

        684KB

      • memory/3272-139-0x0000000008F70000-0x000000000901B000-memory.dmp

        Filesize

        684KB

      • memory/3272-118-0x0000000008F70000-0x000000000901B000-memory.dmp

        Filesize

        684KB

      • memory/3272-119-0x0000000008F70000-0x000000000901B000-memory.dmp

        Filesize

        684KB

      • memory/3272-121-0x0000000008F70000-0x000000000901B000-memory.dmp

        Filesize

        684KB

      • memory/3272-120-0x0000000008F70000-0x000000000901B000-memory.dmp

        Filesize

        684KB

      • memory/3272-122-0x0000000008F70000-0x000000000901B000-memory.dmp

        Filesize

        684KB

      • memory/3272-125-0x0000000008F70000-0x000000000901B000-memory.dmp

        Filesize

        684KB

      • memory/3272-105-0x0000000008F70000-0x000000000901B000-memory.dmp

        Filesize

        684KB

      • memory/3272-123-0x0000000008F70000-0x000000000901B000-memory.dmp

        Filesize

        684KB

      • memory/3272-126-0x0000000008F70000-0x000000000901B000-memory.dmp

        Filesize

        684KB

      • memory/3272-127-0x0000000008F70000-0x000000000901B000-memory.dmp

        Filesize

        684KB

      • memory/3272-132-0x0000000008F70000-0x000000000901B000-memory.dmp

        Filesize

        684KB

      • memory/3272-131-0x0000000008F70000-0x000000000901B000-memory.dmp

        Filesize

        684KB

      • memory/3272-134-0x0000000008F70000-0x000000000901B000-memory.dmp

        Filesize

        684KB

      • memory/3272-135-0x0000000008F70000-0x000000000901B000-memory.dmp

        Filesize

        684KB

      • memory/3272-137-0x0000000008F70000-0x000000000901B000-memory.dmp

        Filesize

        684KB

      • memory/3272-136-0x0000000008F70000-0x000000000901B000-memory.dmp

        Filesize

        684KB

      • memory/3272-138-0x0000000008F70000-0x000000000901B000-memory.dmp

        Filesize

        684KB

      • memory/4520-92-0x000001EE951B0000-0x000001EE9548D000-memory.dmp

        Filesize

        2.9MB