Malicious PDF — malware analysis report

Static analysis result for SHA-256 0119ae5637b16850…

MALICIOUS

PDF

35.0 KB Created: 2021-07-04 00:26:53 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 2aabafae894dfd84eaef4e0bed5f5152 SHA-1: ab873b534aa55641efde073a2bf9afa8e3861ce7 SHA-256: 0119ae5637b1685094caa8d9bd4fac503938d0be67982ce9482e5bb7332894a6
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure promising free Robux and game hacks, directing users to a malicious URL. The ML classifier strongly indicated maliciousness, and the presence of embedded URLs further supports a phishing or redirection attack. No scripts were extracted, but the document's content and linked URLs suggest it is designed to trick users into visiting a site that likely hosts further malicious content or exploits.

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/how-to-free-robux-game-hack PDF link annotation
    • http://perpus.smkn1pemangkat.sch.id//repository/free-robux-gift-card_GM431946152.pdfIn PDF document text
    • http://perpus.smkn1pemangkat.sch.id/repository/free-coin-master-spins-2021_GM406889139.pdfIn PDF document text
    • http://perpus.smkn1pemangkat.sch.id/repository/hack-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://perpus.smkn1pemangkat.sch.id/repository/games-like-coin-master-for-free_GM406889139.pdfIn PDF document text
    • http://perpus.smkn1pemangkat.sch.id//repository/coin-master-free-spins-ios-app_GM406889139.pdfIn PDF document text
    • http://perpus.smkn1pemangkat.sch.id//repository/coin-master-free-coins-link-blogspot_GM406889139.pdfIn PDF document text
    • http://perpus.smkn1pemangkat.sch.id/repository/code-roblox-superhero-tycoon-promo-free-admin-code-tycoon_GM431946152.pdfIn PDF document text
    • http://perpus.smkn1pemangkat.sch.id/repository/daily-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://perpus.smkn1pemangkat.sch.id//repository/tiktok-free-verified_GM835599320.pdfIn PDF document text
    • http://perpus.smkn1pemangkat.sch.id//repository/minecraft-client-download_GM479516143.pdfIn PDF document text
    • http://perpus.smkn1pemangkat.sch.id/repository/how-to-hack-peoples-roblox-accounts_GM431946152.pdfIn PDF document text
    • http://perpus.smkn1pemangkat.sch.id//repository/rbxfree-com-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.smkn1pemangkat.sch.id/repository/free-coins-coin-master-haktuts_GM406889139.pdfIn PDF document text
    • http://perpus.smkn1pemangkat.sch.id/repository/tat-ca-cac-do-free-trong-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.smkn1pemangkat.sch.id//repository/avatar-roblox-game_GM431946152.pdfIn PDF document text
    • http://perpus.smkn1pemangkat.sch.id/repository/robux-gratis_GM431946152.pdfIn PDF document text
    • http://perpus.smkn1pemangkat.sch.id/repository/free-robux-website_GM431946152.pdfIn PDF document text
    • http://perpus.smkn1pemangkat.sch.id/repository/coin-master-cheats-for-free-spins_GM406889139.pdfIn PDF document text
    • http://perpus.smkn1pemangkat.sch.id//repository/getrobux-come_GM431946152.pdfIn PDF document text
    • http://perpus.smkn1pemangkat.sch.id/repository/funbloxxyz-free-robux_GM431946152.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_off000031cf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31CF 22544 bytes
SHA-256: 19a1e25f77fcb89ea35a8e88626e3ccc270ef2a9f06c74b90a82c2d043dc7c60
font_01_sfnt_off00006452.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6452 18880 bytes
SHA-256: b6c4639a0efa27a474f01e4d286fb143e2370880626048fbfb2abea6535030cf

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