Malicious PDF — malware analysis report

Static analysis result for SHA-256 64b7171746b7959f…

MALICIOUS

PDF

33.1 KB Created: 2021-05-13 17:00:38 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 5456b5da42bec4444f6a03222e3510cb SHA-1: d08681cee01f6b50ec0aa33caafb78d10015c7bf SHA-256: 64b7171746b7959f0878583ffa528da4727323825c7ead071d7313b6694433da
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains links designed to lure users with promises of free in-game items, such as Robux. These links redirect to malicious infrastructure, indicating a phishing or scam attempt. The ML classifier strongly supports the malicious nature of this PDF. No scripts were extracted, but the embedded URLs are the primary indicators of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 3

  • 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.
  • 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-without-verification-2021-game-hack In PDF document text
    • https://e.mtsattaqwa10terpadu.org/__statics/gudangsoal/files/can-i-get-minecraft-windows-10-for-free_GM479516143.pdfIn PDF document text
    • https://e.mtsattaqwa10terpadu.org/__statics/gudangsoal/files/free-robux-working_GM431946152.pdfIn PDF document text
    • https://e.mtsattaqwa10terpadu.org/__statics/gudangsoal/files/coin-master-freebies_GM406889139.pdfIn PDF document text
    • https://e.mtsattaqwa10terpadu.org/__statics/gudangsoal/files/how-do-you-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://e.mtsattaqwa10terpadu.org/__statics/gudangsoal/files/coin-master-free-spins-and-coins-for-today_GM406889139.pdfIn PDF document text
    • https://e.mtsattaqwa10terpadu.org/__statics/gudangsoal/files/how-to-hack-coins-in-archery-master-3d_GM406889139.pdfIn PDF document text
    • https://e.mtsattaqwa10terpadu.org/__statics/gudangsoal/files/how-to-hack-to-get-robux_GM431946152.pdfIn PDF document text
    • https://e.mtsattaqwa10terpadu.org/__statics/gudangsoal/files/coin-master-hacks-xyz_GM406889139.pdfIn PDF document text
    • https://e.mtsattaqwa10terpadu.org/__statics/gudangsoal/files/how-to-get-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://e.mtsattaqwa10terpadu.org/__statics/gudangsoal/files/https-iosgodscom-topic-20214coinmasterhack_GM406889139.pdfIn PDF document text
    • https://e.mtsattaqwa10terpadu.org/__statics/gudangsoal/files/robuxglobalcom-no-verification_GM431946152.pdfIn PDF document text
    • https://e.mtsattaqwa10terpadu.org/__statics/gudangsoal/files/how-to-get-free-robux-on-ipad_GM431946152.pdfIn PDF document text
    • https://e.mtsattaqwa10terpadu.org/__statics/gudangsoal/files/free-minecraft-severs_GM479516143.pdfIn PDF document text
    • https://e.mtsattaqwa10terpadu.org/__statics/gudangsoal/files/coin-master-free-spins-link-download_GM406889139.pdfIn PDF document text
    • https://e.mtsattaqwa10terpadu.org/__statics/gudangsoal/files/free-minecraft-skins-pc_GM479516143.pdfIn PDF document text
    • https://e.mtsattaqwa10terpadu.org/__statics/gudangsoal/files/coin-master-free-spins-link-today-ios_GM406889139.pdfIn PDF document text
    • https://e.mtsattaqwa10terpadu.org/__statics/gudangsoal/files/robuxy-com-free-robux_GM431946152.pdfIn PDF document text
    • https://e.mtsattaqwa10terpadu.org/__statics/gudangsoal/files/earn-robux-by-watching-ads_GM431946152.pdfIn PDF document text
    • https://e.mtsattaqwa10terpadu.org/__statics/gudangsoal/files/hacks-para-coin-master_GM406889139.pdfIn PDF document text
    • https://e.mtsattaqwa10terpadu.org/__statics/gudangsoal/files/free-spin-link-for-coin-master-haktuts_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004a70.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A70 24036 bytes
SHA-256: 5b2d60b83420e62690b1ebd43a58789088362a4047ff1e604b5ccf15d1fd009d