Malicious PDF — malware analysis report

Static analysis result for SHA-256 943af62fc7916ad6…

MALICIOUS

PDF

34.7 KB Created: 2021-07-06 11:57:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: a78e5049cea1db99d0966d4a1640a227 SHA-1: 549a7631a666a37bdd1c535a6b4377ad99559084 SHA-256: 943af62fc7916ad6ed65c6d6c681bc6be4ac6800608649abb295c59193768fa9
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a high-confidence heuristic firing for a game hack lure, directing users to a suspicious URL. The document body and extracted URLs reinforce this, indicating a phishing attempt to redirect users to a site offering 'free generators' or 'game hacks'. No scripts were extracted, but the overall pattern suggests a social engineering tactic to drive traffic to a potentially malicious domain.

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/roblox-microsoft-rewards-game-hack PDF link annotation
    • http://library.ulb.ac.id//repository/i-want-free-robux_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/roblox-shinobi-life-cheat-engine-spins_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id//repository/free-roblox-glasses_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/how-to-gift-robux-on-mobile_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/robux-hack-pastebin-2021_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/free-catalog-stuff-roblox-hack_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/free-tiktok-views-no-verification_GM835599320.pdfIn PDF document text
    • http://library.ulb.ac.id//repository/rbx-land-free-robux_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/can-you-really-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/youtube-free-robux-x-daniel_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id//repository/ispoofer-pokemon-go-free_GM1094591345.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/how-to-walk-through-walls-on-roblox-with-cheat-engine_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/roblox-for-free-eee-pc_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/minecraft-servers-that-allow-hacks_GM479516143.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/free-robux-gift-card-cods_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/is-minecraft-free_GM479516143.pdfIn PDF document text
    • http://library.ulb.ac.id//repository/coin-master-hack-tool-no-survey_GM406889139.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/how-to-get-free-robux-glitch-2021_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id//repository/tryrbx-site-free-robux_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/how-to-make-free-roblox-clothes_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
font_00_sfnt_off00003041.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3041 22316 bytes
SHA-256: b6f7df5b16355ffeb3941486ad439e9e499e70e543f2dbd32647b2492e95cb75
font_01_sfnt_off000061eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61EB 19244 bytes
SHA-256: f8bb3a80441ad8ed23a4594754ddb52409a0eb1a5dd42708402faee16d247a69

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