Malicious PDF — malware analysis report

Static analysis result for SHA-256 f142433caa2769dd…

MALICIOUS

PDF

34.8 KB Created: 2021-07-04 00:17:52 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: fd6bbf61d744ff1938b35283f7370e6c SHA-1: 110a587f9b9b2b35b27d0d4ed8b7ae9271cf8283 SHA-256: f142433caa2769ddc399d72c4eb6397218d28b81e7a651d0c44808794d58e437
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a game hack lure to trick users into clicking a link. The primary link, http://netcdn.tw/app/406889139/coin-master-hack-app-ios-game-hack, is designed to redirect users to potentially malicious content. The document's structure and embedded URLs suggest an attempt to deliver a secondary payload or lead users to a phishing site.

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/406889139/coin-master-hack-app-ios-game-hack PDF link annotation
    • http://elearning.man2-cms.sch.id/__statics/gudangsoal/files/free-robux-hack-online_GM431946152.pdfIn PDF document text
    • http://elearning.man2-cms.sch.id/__statics/gudangsoal/files/how-to-generate-free-coin-master-spin_GM406889139.pdfIn PDF document text
    • http://elearning.man2-cms.sch.id/__statics/gudangsoal/files/robux-fun-hack_GM431946152.pdfIn PDF document text
    • http://elearning.man2-cms.sch.id/__statics/gudangsoal/files/free-robux-gen_GM431946152.pdfIn PDF document text
    • http://elearning.man2-cms.sch.id/__statics/gudangsoal/files/coin-master-el-tiger-card-free_GM406889139.pdfIn PDF document text
    • http://elearning.man2-cms.sch.id/__statics/gudangsoal/files/roblox-free-robux-codes_GM431946152.pdfIn PDF document text
    • http://elearning.man2-cms.sch.id/__statics/gudangsoal/files/roblox-money-hack-no-human-verification_GM431946152.pdfIn PDF document text
    • http://elearning.man2-cms.sch.id/__statics/gudangsoal/files/coin-master-hack-app_GM406889139.pdfIn PDF document text
    • http://elearning.man2-cms.sch.id/__statics/gudangsoal/files/free-roblox-hair-to-wear_GM431946152.pdfIn PDF document text
    • http://elearning.man2-cms.sch.id/__statics/gudangsoal/files/free-spins-on-coin-master-game_GM406889139.pdfIn PDF document text
    • http://elearning.man2-cms.sch.id/__statics/gudangsoal/files/free-spins-coin-master-links_GM406889139.pdfIn PDF document text
    • http://elearning.man2-cms.sch.id/__statics/gudangsoal/files/100-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://elearning.man2-cms.sch.id/__statics/gudangsoal/files/free-spins-and-coins-coin-master-links_GM406889139.pdfIn PDF document text
    • http://elearning.man2-cms.sch.id/__statics/gudangsoal/files/coin-master-claim-free-spins_GM406889139.pdfIn PDF document text
    • http://elearning.man2-cms.sch.id/__statics/gudangsoal/files/free-google-play-promo-codes-coin-master_GM406889139.pdfIn PDF document text
    • http://elearning.man2-cms.sch.id/__statics/gudangsoal/files/2021-free-robux-hacks_GM431946152.pdfIn PDF document text
    • http://elearning.man2-cms.sch.id/__statics/gudangsoal/files/coin-master-free-pet-food-links_GM406889139.pdfIn PDF document text
    • http://elearning.man2-cms.sch.id/__statics/gudangsoal/files/free-roblox-clothes-codes_GM431946152.pdfIn PDF document text
    • http://elearning.man2-cms.sch.id/__statics/gudangsoal/files/coin-master-spin-hack_GM406889139.pdfIn PDF document text
    • http://elearning.man2-cms.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-easy-2021_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off000032f5.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x32F5 22716 bytes
SHA-256: 0469ba5d233674fbd0327b9e919f2cd6aa29868a95b847a75452a9d3aa6dcd92
font_01_sfnt_off0000658f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x658F 18180 bytes
SHA-256: 669191ced257cad8cf719fd096a029eb32cc90bb1eacba4ce7ed61202962bed4

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