Malicious PDF — malware analysis report

Static analysis result for SHA-256 29906978898ca578…

MALICIOUS

PDF

38.4 KB Created: 2021-05-21 12:34:53 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: bd872fefbe828832ae435d4f0f86f534 SHA-1: d422f5b14d19abf83b0e562b3e6daa0151eeb324 SHA-256: 29906978898ca5785134f478ae3da07ff801890e2314942eba667417b183ad44
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links designed to lure users into clicking on what appears to be a free generator or game hack, specifically mentioning Roblox. These links redirect to malicious infrastructure. The document body also contains a call-to-action phrase, 'CLICK HERE TO ACCESS ROBLOX GENERATOR', further reinforcing the phishing lure. The presence of embedded URLs and the ML classifier's high confidence score indicate a malicious intent to redirect users to potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9476

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/www-roblox-com-robux-free-game-hack In PDF document text
    • http://www.centralbarbershop.ru/images/2021-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://www.centralbarbershop.ru/images/free-daily-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://www.centralbarbershop.ru/images/free-free-robux_GM431946152.pdfIn PDF document text
    • http://www.centralbarbershop.ru/images/free-minecraft-printables-food-labels_GM479516143.pdfIn PDF document text
    • http://www.centralbarbershop.ru/images/watch-videos-for-robux_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_off00003136.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3136 31500 bytes
SHA-256: d5642270e68fb6e57c3b56d790d063fc49c72006475469361b0bdbcd2037622d
font_01_sfnt_off000073d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x73D3 18708 bytes
SHA-256: c91f27fd30ec200e2a0dbd5cc88ad35776bc2371b1b59549651737de5f7a4295

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