Malicious PDF — malware analysis report

Static analysis result for SHA-256 036bb22ce6035b87…

MALICIOUS

PDF

42.4 KB Created: 2021-05-20 00:37:49 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 392de3da0566e27b144e4ac7cb92901f SHA-1: b030f9330b552c8f88502d3aad3ad1f978d66788 SHA-256: 036bb22ce6035b87f77a0fd97dd6dcb53e6b40d088a7765d32938b02f2f31c5c
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links designed to lure users with promises of free game currency or hacks. These links redirect to malicious infrastructure, indicating a phishing or scam attempt. The presence of embedded URLs and the ML classifier's high confidence score support this assessment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

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.
  • PDF differential parser failed info PDF_DIFFERENTIAL_PARSE_FAILED
    The cross-check parser (pdfminer.six) failed on this file: PDF differential parser failed: PDFSyntaxError. Static heuristics still ran and any of their findings above are valid; only the differential cross-check signal is missing.
  • 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/get-free-robux-2021-game-hack In PDF document text
    • https://gestionpatrimonial.net/images/coin-master-hack-download-2021_GM406889139.pdfIn PDF document text
    • https://gestionpatrimonial.net/images/coin-master-free-spin-app-2021_GM406889139.pdfIn PDF document text
    • https://gestionpatrimonial.net/images/www-rubux_GM431946152.pdfIn PDF document text
    • https://gestionpatrimonial.net/images/get-robux-now_GM431946152.pdfIn PDF document text
    • https://gestionpatrimonial.net/images/coin-master-working-hack_GM406889139.pdfIn PDF document text
    • https://gestionpatrimonial.net/images/robux-money_GM431946152.pdfIn PDF document text
    • https://gestionpatrimonial.net/images/free-free-robux_GM431946152.pdfIn PDF document text
    • https://gestionpatrimonial.net/images/robux-sites_GM431946152.pdfIn PDF document text
    • https://gestionpatrimonial.net/images/real-robux-codes_GM431946152.pdfIn PDF document text
    • https://gestionpatrimonial.net/images/minecraft-java-hacks_GM479516143.pdfIn PDF document text
    • https://gestionpatrimonial.net/images/mcmaster-club-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://gestionpatrimonial.net/images/how-to-get-free-coins-on-flip-master_GM406889139.pdfIn PDF document text
    • https://gestionpatrimonial.net/images/free-spins-coin-master-2021-app_GM406889139.pdfIn PDF document text
    • https://gestionpatrimonial.net/images/coin-master-free-link_GM406889139.pdfIn PDF document text
    • https://gestionpatrimonial.net/images/coin-master-hack-https-coinms-net_GM406889139.pdfIn PDF document text
    • https://gestionpatrimonial.net/images/coin-master-link-today_GM406889139.pdfIn PDF document text
    • https://gestionpatrimonial.net/images/roblox-no-download-hack_GM431946152.pdfIn PDF document text
    • https://gestionpatrimonial.net/images/robux-offers_GM431946152.pdfIn PDF document text
    • https://gestionpatrimonial.net/images/mcpe-master-unlimited-coins-free-download_GM406889139.pdfIn PDF document text
    • https://gestionpatrimonial.net/images/pubg-uc-app_GM1330123889.pdfIn 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
font_00_sfnt_off00004866.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4866 26388 bytes
SHA-256: 8c56375e45c322695965b432f540cfe339085309277db5e6374ecbfac5d12297
font_01_sfnt_off000083c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83C0 18520 bytes
SHA-256: 6fe0ff66a16b6ee6dc50657e9361d5c62c74e6da0263e26ac7f67f588141101f

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