Malicious PDF — malware analysis report

Static analysis result for SHA-256 999bdb1303e667b8…

MALICIOUS

PDF

33.9 KB Created: 2021-06-29 06:43:01 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: c85cfa03f8efe194f5ae8a491f25ac31 SHA-1: 6d561e855303c5c6790d8549350e14af74d86517 SHA-256: 999bdb1303e667b8e8b24fe8698afc52098390013e5186261c756478e496c717
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to known malicious infrastructure, specifically designed to lure users with promises of game hacks and currency generators. The document body and embedded URLs strongly suggest a phishing or scam attempt, likely leading to further malware download or credential harvesting. No scripts were extracted, but the embedded URLs and heuristic firings indicate a malicious redirector chain.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9824

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.co/app/431946152/youtube-inquisitor-master-my-roblox-account-got-hacked-game-hack In PDF document text
    • http://simon-skov-fougt.dk/billeder/free-robux-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://simon-skov-fougt.dk/billeder/free-robux-real-2021_GM431946152.pdfIn PDF document text
    • http://simon-skov-fougt.dk/billeder/hack-robux-computer_GM431946152.pdfIn PDF document text
    • http://simon-skov-fougt.dk/billeder/coin-master-free-spins-apk_GM406889139.pdfIn PDF document text
    • http://simon-skov-fougt.dk/billeder/minecraft-xray-hack_GM479516143.pdfIn PDF document text
    • http://simon-skov-fougt.dk/billeder/how-to-get-free-robux-on-chromebook_GM431946152.pdfIn PDF document text
    • http://simon-skov-fougt.dk/billeder/free-robux-quiz_GM431946152.pdfIn PDF document text
    • http://simon-skov-fougt.dk/billeder/how-to-get-free-spins-and-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://simon-skov-fougt.dk/billeder/roblox-free-robux-no-waiting_GM431946152.pdfIn PDF document text
    • http://simon-skov-fougt.dk/billeder/freerobuxhack-us-2021_GM431946152.pdfIn PDF document text
    • http://simon-skov-fougt.dk/billeder/promo-codes-for-free-robux_GM431946152.pdfIn PDF document text
    • http://simon-skov-fougt.dk/billeder/daily-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://simon-skov-fougt.dk/billeder/how-to-get-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • http://simon-skov-fougt.dk/billeder/john-doe-roblox-hacker_GM431946152.pdfIn PDF document text
    • http://simon-skov-fougt.dk/billeder/coin-master-hack-tool-pc-download_GM406889139.pdfIn PDF document text
    • http://simon-skov-fougt.dk/billeder/minecraft-tower-defense-hacked_GM479516143.pdfIn PDF document text
    • http://simon-skov-fougt.dk/billeder/free-robux-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • http://simon-skov-fougt.dk/billeder/free-clothing-roblox-hack_GM431946152.pdfIn PDF document text
    • http://simon-skov-fougt.dk/billeder/links-to-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://simon-skov-fougt.dk/billeder/rbl-gg-free-robux_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 5

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_off00002ae7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2AE7 22480 bytes
SHA-256: 1288328dd2cd372c00a5ed8d68407b2517be09320a26c317383eef298cb11b27
font_01_sfnt_off00005d30.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D30 19904 bytes
SHA-256: 30fa008dd062f508020aa43026f756c5b39f4d4551d6d5010eeb3b44766457b1

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