Malicious PDF — malware analysis report

Static analysis result for SHA-256 7e1c317bad756ca6…

MALICIOUS

PDF

34.5 KB Created: 2021-07-01 18:00:22 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 8c96f0e6a905f97d22ad94756eacfb9c SHA-1: e4c15a019ac52cf95828b90ba34818820355e0a6 SHA-256: 7e1c317bad756ca656936daa1a8f96ba63e5235e94e242f890a598e5d329f37c
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple heuristics indicating malicious redirector links, specifically targeting users with lures for game hacks and free currency. The primary URL identified, http://netcdn.co/app/431946152/how-to-get-free-robux-without-paying-any-money-game-hack, is flagged as malicious. The document body reinforces this by containing the same URL and related keywords, suggesting a phishing or malware distribution attempt.

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/how-to-get-free-robux-without-paying-any-money-game-hack In PDF document text
    • https://www.man2kotatangerang.sch.id/__statics/gudangsoal/files/free-robux-codes-generator-no-verification_GM431946152.pdfIn PDF document text
    • https://www.man2kotatangerang.sch.id/__statics/gudangsoal/files/http-bit-ly-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.man2kotatangerang.sch.id/__statics/gudangsoal/files/admin-roblox-hack-2021_GM431946152.pdfIn PDF document text
    • https://www.man2kotatangerang.sch.id/__statics/gudangsoal/files/roblox-social-link-cheat_GM431946152.pdfIn PDF document text
    • https://www.man2kotatangerang.sch.id/__statics/gudangsoal/files/roblox-cheat-engine-patched_GM431946152.pdfIn PDF document text
    • https://www.man2kotatangerang.sch.id/__statics/gudangsoal/files/is-there-any-way-to-actually-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.man2kotatangerang.sch.id/__statics/gudangsoal/files/free-see-through-t-shirt-roblox_GM431946152.pdfIn PDF document text
    • https://www.man2kotatangerang.sch.id/__statics/gudangsoal/files/wallythemad-s-cheat-for-roblox_GM431946152.pdfIn PDF document text
    • https://www.man2kotatangerang.sch.id/__statics/gudangsoal/files/free-robux-with-synapse_GM431946152.pdfIn PDF document text
    • https://www.man2kotatangerang.sch.id/__statics/gudangsoal/files/how-to-hack-admin-on-roblox-with-cheat-engine-63_GM431946152.pdfIn PDF document text
    • https://www.man2kotatangerang.sch.id/__statics/gudangsoal/files/free-code-robux-2021-auguste_GM431946152.pdfIn PDF document text
    • https://www.man2kotatangerang.sch.id/__statics/gudangsoal/files/hack-robux-roblox-cheat-engine_GM431946152.pdfIn PDF document text
    • https://www.man2kotatangerang.sch.id/__statics/gudangsoal/files/free-robux-2021-no-survey-no-download_GM431946152.pdfIn PDF document text
    • https://www.man2kotatangerang.sch.id/__statics/gudangsoal/files/best-roblox-hack-tool_GM431946152.pdfIn PDF document text
    • https://www.man2kotatangerang.sch.id/__statics/gudangsoal/files/roblox-hack-tool-no-survey_GM431946152.pdfIn PDF document text
    • https://www.man2kotatangerang.sch.id/__statics/gudangsoal/files/gainbloxcom-free-robux_GM431946152.pdfIn PDF document text
    • https://www.man2kotatangerang.sch.id/__statics/gudangsoal/files/how-to-get-free-builders-club-on-roblox-2021_GM431946152.pdfIn PDF document text
    • https://www.man2kotatangerang.sch.id/__statics/gudangsoal/files/roblox-name-changename-hack_GM431946152.pdfIn PDF document text
    • https://www.man2kotatangerang.sch.id/__statics/gudangsoal/files/how-to-fly-hack-in-roblox-no-download_GM431946152.pdfIn PDF document text
    • https://www.man2kotatangerang.sch.id/__statics/gudangsoal/files/get-free-robux-easy-and-fast_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
font_00_sfnt_off00002d39.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D39 22564 bytes
SHA-256: b8c5b795cae0b2d9a11260f27a706bbff1569da0322244a7279d4b1c817b2d15
font_01_sfnt_off00005f9e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F9E 20000 bytes
SHA-256: 29b14f03e442498c0d66b05ca7abe50798406e63ebf6907e020fea394b178dc5

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