Malicious PDF — malware analysis report

Static analysis result for SHA-256 03b7e7eaffff146c…

MALICIOUS

PDF

36.5 KB Created: 2021-07-04 21:52:10 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 14a94bd4f591fa918753cd7e70bc5271 SHA-1: ad018c35645377b78981d53aa9211b7a6fb26aa0 SHA-256: 03b7e7eaffff146c7485026b16b65ef663b2f60bb4979924f36689255be6f391
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links designed to lure users into clicking on them by promising free in-game currency or hacks. The primary link redirects to known malicious infrastructure, indicating a phishing or scam attempt. The document's content and embedded URLs strongly suggest a social engineering tactic to drive traffic to potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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-get-free-robux-without-download-apps-or-survey-game-hack In PDF document text
    • http://artistaone.co/userfiles/files/free-spins-coin-master-site-wwwquoracom_GM406889139.pdfIn PDF document text
    • http://artistaone.co/userfiles/files/minecraft-java-server-hosting-free_GM479516143.pdfIn PDF document text
    • http://artistaone.co/userfiles/files/coin-master-links-to-free-spins_GM406889139.pdfIn PDF document text
    • http://artistaone.co/userfiles/files/how-to-make-a-minecraft-client_GM479516143.pdfIn PDF document text
    • http://artistaone.co/userfiles/files/huskybuscom-free-robux_GM431946152.pdfIn PDF document text
    • http://artistaone.co/userfiles/files/how-to-get-free-robux-website_GM431946152.pdfIn PDF document text
    • http://artistaone.co/userfiles/files/coin-master-hack-online-without-human-verification_GM406889139.pdfIn PDF document text
    • http://artistaone.co/userfiles/files/free-robux-cards_GM431946152.pdfIn PDF document text
    • http://artistaone.co/userfiles/files/wahoogaming-co-free-robux_GM431946152.pdfIn PDF document text
    • http://artistaone.co/userfiles/files/cool-free-roblox-outfits_GM431946152.pdfIn PDF document text
    • http://artistaone.co/userfiles/files/roblox-hack-2021-late_GM431946152.pdfIn PDF document text
    • http://artistaone.co/userfiles/files/free-roblox-outfits-2021_GM431946152.pdfIn PDF document text
    • http://artistaone.co/userfiles/files/pokediger1-robux-codes-free-secret_GM431946152.pdfIn PDF document text
    • http://artistaone.co/userfiles/files/coin-master-unlimited-free-spins_GM406889139.pdfIn PDF document text
    • http://artistaone.co/userfiles/files/use-cheat-engine-with-roblox_GM431946152.pdfIn PDF document text
    • http://artistaone.co/userfiles/files/free-spins-coin-master-links_GM406889139.pdfIn PDF document text
    • http://artistaone.co/userfiles/files/gamesyourday-free-robux_GM431946152.pdfIn PDF document text
    • http://artistaone.co/userfiles/files/game-action-aventure-magic-in-roblox-free_GM431946152.pdfIn PDF document text
    • http://artistaone.co/userfiles/files/coin-master-golden-cards-hack_GM406889139.pdfIn PDF document text
    • http://artistaone.co/userfiles/files/buy-robux-free_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_off00003142.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3142 23384 bytes
SHA-256: 2af3a86fb5929c94dec914c2feafd56f1b82fcfa1596184e96ee65bc8e9befb3
font_01_sfnt_off000065d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65D0 20352 bytes
SHA-256: d8756e6af156b5e47b0cb2729479c2858110a61e10a0d8d2ed7f250617cb02ae

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