Analysis

  • max time kernel
    144s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19-06-2024 12:21

General

  • Target

    Visual-C++/vcredist2005_x64.exe

  • Size

    3.0MB

  • MD5

    56eaf4e1237c974f6984edc93972c123

  • SHA1

    ee916012783024dac67fc606457377932c826f05

  • SHA256

    0551a61c85b718e1fa015b0c3e3f4c4eea0637055536c00e7969286b4fa663e0

  • SHA512

    f8e15363e34db5b5445c41eea4dd80b2f682642cb8f1046f30ea4fb5f4f51b0b604f7bcb3000a35a7d3ba1d1bcc07df9b25e4533170c65640b2d137c19916736

  • SSDEEP

    49152:+r67+stI6RWGTAdyvlADUrpTmcOgohwJpEM5grO3oc1OXZViFeRyDErkLUMHzkRN:AM9l8pUr9m30L5grOQXZKAsErkbQRN

Malware Config

Signatures

  • Loads dropped DLL 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Enumerates connected drives 3 TTPs 46 IoCs

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

  • Drops file in Program Files directory 1 IoCs
  • Drops file in Windows directory 57 IoCs
  • Event Triggered Execution: Installer Packages 1 TTPs 1 IoCs
  • 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
  • Modifies registry class 45 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs
  • Uses Volume Shadow Copy service COM API

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\Visual-C++\vcredist2005_x64.exe
    "C:\Users\Admin\AppData\Local\Temp\Visual-C++\vcredist2005_x64.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:4452
    • C:\Windows\SysWOW64\msiexec.exe
      msiexec /i vcredist.msi
      2⤵
      • Enumerates connected drives
      • Event Triggered Execution: Installer Packages
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      PID:3008
  • 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
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1592
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:1460
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding C272020E2F4E367834C5B9E6783D0006
        2⤵
        • Loads dropped DLL
        PID:4840
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      • Suspicious use of AdjustPrivilegeToken
      PID:4880

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Config.Msi\e57d4d7.rbs

      Filesize

      73KB

      MD5

      da17881f99c440bf9abea82667821c74

      SHA1

      39819deb6d861cc96e69ceff57b44789b6bc800a

      SHA256

      ec0b7e401ad2ffb0e838213429006814e1da5f5aea6630f166187274215f360e

      SHA512

      7f7e5d6e9b7e409faaf3c1cee5e8e670538e33c8194cd778d17c444160d673948ec517fb25940904b0795385014fe16682c8bea922112a420601b3211f923011

    • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\vcredis1.cab

      Filesize

      312KB

      MD5

      77a9bff5af149160775741e204734d47

      SHA1

      7b5126af69b5a79593f39db94180f1ff11b0e39d

      SHA256

      20a26ed9a1edf7763a9b515522c5e29720048a482c7fbc8b7ff6bbdd27e61038

      SHA512

      bb0440f58f07e113bddd9a0afb5aab8af6493218784fe5fa6f4032e3a37088f91b7e766dee87cec4a9ea11d425d27b3b536430de3a52222e8bca3e0247d81e3b

    • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\vcredist.msi

      Filesize

      3.0MB

      MD5

      6dbdf338a0a25cdb236d43ea3ca2395e

      SHA1

      685b6ea61e574e628392eaac8b10aff4309f1081

      SHA256

      200fef5d4994523a02c4daa00060db28eb289b99d47fc6c1305183101e72bdeb

      SHA512

      6b5b31c55cf72ab92b17fb6074b3901a1e6afe0796ef9bc831e4dfb97450376d2889cd24b1cf3fce60eb3c1bcd1b31254b5cfa3ef6107974dfa0b35c233daf5a

    • C:\Windows\Installer\MSID90A.tmp

      Filesize

      28KB

      MD5

      85221b3bcba8dbe4b4a46581aa49f760

      SHA1

      746645c92594bfc739f77812d67cfd85f4b92474

      SHA256

      f6e34a4550e499346f5ab1d245508f16bf765ff24c4988984b89e049ca55737f

      SHA512

      060e35c4de14a03a2cda313f968e372291866cc4acd59977d7a48ac3745494abc54df83fff63cf30be4e10ff69a3b3c8b6c38f43ebd2a8d23d6c86fbee7ba87d

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

      Filesize

      23.7MB

      MD5

      083c44b3352bb447010a67b79834b176

      SHA1

      6213ebfa9ec13d1fd9538fc334e799c451912bd2

      SHA256

      ae07df254562d47fa5203bb4f5c4f91a8224808ec57fc790ce53a7b604711922

      SHA512

      282338e689342f93eae5f65c50a96f2116ce78cd6e80c273197628f380ef5fb8a17a5068e1c64e6a221f6c97c9d5e23025411c5b6c7bc6bf1a38cb720fee7816

    • \??\Volume{8ccc3c3f-0000-0000-0000-d01200000000}\System Volume Information\SPP\OnlineMetadataCache\{c26bf3bd-fc79-44c9-868e-fd40cfcc4102}_OnDiskSnapshotProp

      Filesize

      6KB

      MD5

      80b59eea57bc632899a8f35a791bfa62

      SHA1

      b8ad4bea0fe710d2521c3996dbf871b255650622

      SHA256

      d248bb8091f395c1e9d33a891f0013095edc18bf32d66f4c3c9bee55c4215ea0

      SHA512

      8ab327d479c7287cdbf1eb1147bc9f07ec2e345b0ecb9083594b1fac9493de3f1fb228cdd1be3a5b52f474e83b2a047a8a78001026781bf7456788f33b59b571