Malicious PDF — malware analysis report

Static analysis result for SHA-256 f14f93d8a5ba0a5e…

MALICIOUS

PDF

42.5 KB Created: 2021-05-12 14:11:13 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 9c6841354427f4c3833ecb840345162d SHA-1: 94ec5410e4f8d7a212c23fc1593a50a0b5dba189 SHA-256: f14f93d8a5ba0a5e57525cf316f9cbf8df9b17d5836048089a24e272256f616c
200 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs and a document body that explicitly promotes 'hacks' for popular games, indicating a social engineering lure. The ML classifier strongly flagged this PDF as malicious, and the presence of external URIs suggests it is designed to redirect users to malicious sites. No scripts were extracted, but the overall pattern suggests a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

Heuristics 5

  • 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.
  • Brand-impersonation credential phishing lure high SE_BRAND_CREDENTIAL_PHISH
    Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: call-to-action link host does not match the impersonated brand: https://netcdn.xyz/app/431946152/how-to-hack-people-on-roblox-game-hack.
  • 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 https://netcdn.xyz/app/431946152/how-to-hack-people-on-roblox-game-hack In PDF document text
    • http://bildhauerei-roerig.de/images/coin-master-hack-apk-download_GM406889139.pdfIn PDF document text
    • http://bildhauerei-roerig.de/images/free-robux-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • http://bildhauerei-roerig.de/images/bloxpage-free-robux_GM431946152.pdfIn PDF document text
    • http://bildhauerei-roerig.de/images/how-to-robux_GM431946152.pdfIn PDF document text
    • http://bildhauerei-roerig.de/images/coin-master-hacks_GM406889139.pdfIn PDF document text
    • http://bildhauerei-roerig.de/images/ways-to-get-robux_GM431946152.pdfIn PDF document text
    • http://bildhauerei-roerig.de/images/free-spin-links-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://bildhauerei-roerig.de/images/minecraft-for-free-on-phone_GM479516143.pdfIn PDF document text
    • http://bildhauerei-roerig.de/images/robloxheroxyz-free-robux_GM431946152.pdfIn PDF document text
    • http://bildhauerei-roerig.de/images/coin-master-game-hunters-club_GM406889139.pdfIn PDF document text
    • http://bildhauerei-roerig.de/images/how-to-get-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://bildhauerei-roerig.de/images/coin-master-hack-mod-apk-download_GM406889139.pdfIn PDF document text
    • http://bildhauerei-roerig.de/images/coin-master-cards-hack_GM406889139.pdfIn PDF document text
    • http://bildhauerei-roerig.de/images/free-roblox-account-generator_GM431946152.pdfIn PDF document text
    • http://bildhauerei-roerig.de/images/minecraft-noob-vs-pro-vs-hacker_GM479516143.pdfIn PDF document text
    • http://bildhauerei-roerig.de/images/master-coin-free-spin-daily_GM406889139.pdfIn PDF document text
    • http://bildhauerei-roerig.de/images/coin-master-hack-2021-ios_GM406889139.pdfIn PDF document text
    • http://bildhauerei-roerig.de/images/real-free-robux-generator_GM431946152.pdfIn PDF document text
    • http://bildhauerei-roerig.de/images/coin-master-cheat-free_GM406889139.pdfIn PDF document text
    • http://bildhauerei-roerig.de/images/promo-code-free-robux_GM431946152.pdfIn PDF document text
    • https://discordIn 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
stream_003_off000048b1.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x48B1 25404 bytes
SHA-256: caa473776c37d782c3046905de35ed9ed87ba365dabbe186188b1d40ba362da0
font_01_sfnt_off00008295.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8295 18676 bytes
SHA-256: 9439cdf519c477105af26a237b903c28353edd649090bb99f856962d56c9ecd1

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