Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d5d68c5c091c3cd…

MALICIOUS

PDF

34.2 KB Created: 2021-07-05 06:01:24 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 5783e7bb3b3fbd1c7227e29ab70e2b20 SHA-1: b5843712b4ae9e736a8b45255edf39452b93f1c8 SHA-256: 5d5d68c5c091c3cdf316a456e5412d8fb811cd3a69650fcd6febf3bfcd85ed2f
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • External URI info PDF_URI
    PDF contains an external URL action
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://netcdn.tw/app/431946152/free-robux-mod-game-hack PDF link annotation
    • http://projectunionstreet.com/library/repository/coin-master-hack-android-root_GM406889139.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/roblox-hack-to-get-robux-2021_GM431946152.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/how-to-get-minecraft-coins-for-free_GM479516143.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/who-tiktok-free-download_GM835599320.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/free-robux-codes-genorateor_GM431946152.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/cheat-sheet-for-guess-the-song-roblox_GM431946152.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/roblox-free-robux-codes_GM431946152.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/free-to-play-minecraft-servers_GM479516143.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/free-spins-coin-master-no-survey_GM406889139.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/how-to-get-free-roblox_GM431946152.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/free-tiktok-followers-without-human-verification_GM835599320.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/roblox-free-printables_GM431946152.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/coin-master-free-soins_GM406889139.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/download-roblox-free-for-android_GM431946152.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/free-robux-com-real_GM431946152.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/minecraft-bedrock-server-hosting-free_GM479516143.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/coin-master-hack-xyz-2021_GM406889139.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/coin-master-daily-gifts_GM406889139.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/hack-coin-master-without-verification_GM406889139.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/free-tiktok-likes-generator_GM835599320.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002eaa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EAA 22340 bytes
SHA-256: 957c5ee1abe1c9de6133f97722d1a99c69eab4c0e095535827ccc12029c51867
font_01_sfnt_off0000607a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x607A 19088 bytes
SHA-256: 3c56140fee9dfb5ded46378f21a8de948775312b2d7b3282d1f8cc46bd34fe6a

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