Malicious PDF — malware analysis report

Static analysis result for SHA-256 677e9d7135b079c2…

MALICIOUS

PDF

34.7 KB Created: 2021-07-06 02:24:54 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 0b37b15a40cee2c5f08f0b78029ee8f6 SHA-1: cb4cbdc2002b78298adc8cc44bd2221a81044849 SHA-256: 677e9d7135b079c24aa5e612c4b5a3b822be5f5b0331d43f289539ed7a33be9d
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for 'free Robux' and game hacks, directing users to external URLs. The ML classifier strongly flagged this PDF as malicious. While no scripts were explicitly extracted, the presence of embedded URLs and the nature of the lure suggest a phishing or scam attempt, likely leading to a malicious download or redirect. The document body contains multiple URLs related to game hacks and free currency, reinforcing the scam lure.

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-apps-that-work-game-hack PDF link annotation
    • http://projectunionstreet.com/library/repository/free-minecraft-accounts-2021_GM479516143.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/claim-free-robux-game_GM431946152.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/robux-free-c_GM431946152.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/coin-master-free-spins-link-2021-blogger_GM406889139.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/mcpe-master-hack-unlimited-coins_GM406889139.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/roblox-games-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/how-to-get-free-roebucks-without-verification_GM431946152.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/free-roblox-outfits-2021_GM431946152.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/free-robux-real-working_GM431946152.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/roblox-parkour-hack-script-pastebin_GM431946152.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/coin-master-codes_GM406889139.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/coin-master-daily-gift-free-spins-and-coins-link_GM406889139.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/free-robux-thumbnail_GM431946152.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/roblox-army-free-robux_GM431946152.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/free-minecraft-servers-to-join_GM479516143.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/free-robux-co_GM431946152.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/how-to-get-free-coins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/pubg-uc-olx_GM1330123889.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/legit-coin-master-hack-october-2021_GM406889139.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_off00002f7f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F7F 22168 bytes
SHA-256: e3928c18757112f6f0288bf3c85ae5f69af12699a0afc79600b5a3cdb9ece74b
font_01_sfnt_off000060f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60F9 19528 bytes
SHA-256: 3ce59685ce564c47d51d5d1714b73889d1d344349ceb90d9e3a1730e11095f67

Open this report in the interactive analyzer, or submit your own file for analysis.