Malicious PDF — malware analysis report

Static analysis result for SHA-256 4488981291ae334b…

MALICIOUS

PDF

42.2 KB Created: 2021-05-23 02:21:00 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 6f34935a90793470296243f208f46386 SHA-1: 8bdf9c8aa80cab651cc424a53d75d662b4a048ee SHA-256: 4488981291ae334b2505cc741da5822ce89a4d1f12192ed2ed9e10a7bc0b48b3
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains multiple links to known malicious redirectors, specifically advertising a "free generator / game hack" for Robux. The document body explicitly contains the phrase "CLICK HERE TO ACCESS ROBLOX GENERATOR" and a URL pointing to malicious infrastructure. This indicates a social engineering lure designed to trick users into visiting a compromised site, likely to download malware or engage in credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8090

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/rbl-gg-free-robux-game-hack In PDF document text
    • http://www.habitas.it/images/lazyblocks-com-free-robux_GM431946152.pdfIn PDF document text
    • http://www.habitas.it/images/coin-master-hoe-to-get-extra-free-spins_GM406889139.pdfIn PDF document text
    • http://www.habitas.it/images/coin-master-spin-ml-link_GM406889139.pdfIn PDF document text
    • http://www.habitas.it/images/coin-master-free-spins-today-daily-links_GM406889139.pdfIn PDF document text
    • http://www.habitas.it/images/free-robux-sites-that-work_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off000035d3.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x35D3 28948 bytes
SHA-256: 45c77525c6fb54db00b966cfcf50116ca1a97f1c251e62a18d5da6159c27cb66
font_01_sfnt_off00007820.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7820 3400 bytes
SHA-256: 4b3e0f36ad1e0c7e3ea5c178fd2b4f097d1e01575fc6a4101a8b520db34dfe07
font_02_sfnt_off0000834a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x834A 18376 bytes
SHA-256: 36d8e5c8df31ce5774558eb4dff236d908794f1052653b7bf9d7a2310610d2b4

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