Malicious PDF — malware analysis report

Static analysis result for SHA-256 d0f51292c23d7205…

MALICIOUS

PDF

49.2 KB Created: 2021-05-14 05:50:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 2faa563611f39bacb3e7ca2fc4a5af40 SHA-1: 524c04f9224cde938248103e8127825aabc0a6a1 SHA-256: d0f51292c23d720570cfc375c3c8e1e3c9dd49239f2c5f1be284ce74bb3dfc8b
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded links that are identified as malicious redirectors, specifically targeting users with lures for free game currency and hacks. The document body and heuristics confirm the intent to redirect users to potentially harmful sites, likely for phishing or malware distribution. No scripts were extracted, but the presence of malicious URLs and the lure-based content strongly indicate a phishing or social engineering attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8642

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 https://netcdn.xyz/app/431946152/how-to-get-free-robux-no-verification-2021-game-hack In PDF document text
    • http://schmittmusic.de/images/free-robux-easy_GM431946152.pdfIn PDF document text
    • http://schmittmusic.de/images/static-moonactive-net-free-spins_GM406889139.pdfIn PDF document text
    • http://schmittmusic.de/images/coin-master-70-spin-link_GM406889139.pdfIn PDF document text
    • http://schmittmusic.de/images/static-moonactive_GM406889139.pdfIn PDF document text
    • http://schmittmusic.de/images/can-you-get-robux-for-free_GM431946152.pdfIn PDF document text
    • http://schmittmusic.de/images/roblox-help-free-robux_GM431946152.pdfIn PDF document text
    • http://schmittmusic.de/images/coin-master-no-download-app-but-play-for-free_GM406889139.pdfIn PDF document text
    • http://schmittmusic.de/images/free-robux-com-real_GM431946152.pdfIn PDF document text
    • http://schmittmusic.de/images/roblox-hack-scripts-pastebin_GM431946152.pdfIn PDF document text
    • http://schmittmusic.de/images/apps-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://schmittmusic.de/images/blogspot-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://schmittmusic.de/images/links-to-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://schmittmusic.de/images/roblox-exploit-download_GM431946152.pdfIn PDF document text
    • http://schmittmusic.de/images/20210-robux_GM431946152.pdfIn PDF document text
    • http://schmittmusic.de/images/how-to-hack-roblox-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://schmittmusic.de/images/coin-master-spin-hack-without-verification_GM406889139.pdfIn PDF document text
    • http://schmittmusic.de/images/haktuts-coin-master-free-daily-spins_GM406889139.pdfIn PDF document text
    • http://schmittmusic.de/images/how-to-get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://schmittmusic.de/images/coin-master-free-spins-link-today-new-2021_GM406889139.pdfIn PDF document text
    • http://schmittmusic.de/images/free-robux-generator-no-survey_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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000049ec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x49EC 25540 bytes
SHA-256: 5b892c9c8cff2a550f048b149630e94b8a36bfe2ef1dd3497512ce87189a28c3
font_01_sfnt_off0000841e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x841E 2832 bytes
SHA-256: 77ae1c4cffa647a8fd533dfa4102e94364989f9e80b9cd131876e9d1005899a2
font_02_sfnt_off00008dca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8DCA 5696 bytes
SHA-256: 450e3ee45915afe13702bf1d587eb8b9ad88a8d2113419ac9f2fd116a828e139
font_03_sfnt_off00009adc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9ADC 19164 bytes
SHA-256: 96effbdae210045e90f33644c7199b62eda4c51e6e40441412be2e574896d09f

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