Malicious PDF — malware analysis report

Static analysis result for SHA-256 9bd715045458c174…

MALICIOUS

PDF

42.4 KB Created: 2021-05-13 17:32:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 93a5b59adedb59f8f9d415a73ba56675 SHA-1: 9a74779d5d94af9a96cdc7ab2645982273e0bfb8 SHA-256: 9bd715045458c174dc95c4f6c5c7b417958c392c8fa87cbd14fd5a5b5d38d9c1
200 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document contains multiple links to known malicious redirectors and impersonates Facebook to lure users into clicking them. The primary malicious URL identified is https://netcdn.xyz/app/479516143/hacks-minecraft-game-hack, which is presented as a 'free generator / game hack'. The document body, though heavily obfuscated, also contains numerous other links to potentially malicious PDF files hosted on upes.edu.sv.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

Heuristics 5

  • 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.
  • Brand-impersonation credential phishing lure high SE_BRAND_CREDENTIAL_PHISH
    Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: call-to-action link host does not match the impersonated brand: https://netcdn.xyz/app/479516143/hacks-minecraft-game-hack.
  • 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/479516143/hacks-minecraft-game-hack In PDF document text
    • http://upes.edu.sv/ckfinder/userfiles/files/is-roblox-free-on-ps4_GM431946152.pdfIn PDF document text
    • http://upes.edu.sv/ckfinder/userfiles/files/coin-master-fan-page-free-spins_GM406889139.pdfIn PDF document text
    • http://upes.edu.sv/ckfinder/userfiles/files/coin-master-hack-without-verification-2021_GM406889139.pdfIn PDF document text
    • http://upes.edu.sv/ckfinder/userfiles/files/coin-master-free-generator_GM406889139.pdfIn PDF document text
    • http://upes.edu.sv/ckfinder/userfiles/files/coin-master-hacks-for-free-spins_GM406889139.pdfIn PDF document text
    • http://upes.edu.sv/ckfinder/userfiles/files/free-magical-chest-coin-master_GM406889139.pdfIn PDF document text
    • http://upes.edu.sv/ckfinder/userfiles/files/roblox-studio-free-robux_GM431946152.pdfIn PDF document text
    • http://upes.edu.sv/ckfinder/userfiles/files/is-minecraft-free-on-pc_GM479516143.pdfIn PDF document text
    • http://upes.edu.sv/ckfinder/userfiles/files/how-to-get-minecraft-java-edition-for-free_GM479516143.pdfIn PDF document text
    • http://upes.edu.sv/ckfinder/userfiles/files/haktuts-coin-master-free-daily-spins_GM406889139.pdfIn PDF document text
    • http://upes.edu.sv/ckfinder/userfiles/files/coin-master-game-hunter_GM406889139.pdfIn PDF document text
    • http://upes.edu.sv/ckfinder/userfiles/files/coin-master-free-spins-daily-fb-champion_GM406889139.pdfIn PDF document text
    • http://upes.edu.sv/ckfinder/userfiles/files/oprewards-com-earn_GM431946152.pdfIn PDF document text
    • http://upes.edu.sv/ckfinder/userfiles/files/minecraft-java-edition-free-download-for-android_GM479516143.pdfIn PDF document text
    • http://upes.edu.sv/ckfinder/userfiles/files/coin-master-vip-hack_GM406889139.pdfIn PDF document text
    • http://upes.edu.sv/ckfinder/userfiles/files/how-to-make-a-private-server-on-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://upes.edu.sv/ckfinder/userfiles/files/free-robux-no-verification-no-survey_GM431946152.pdfIn PDF document text
    • http://upes.edu.sv/ckfinder/userfiles/files/free-spin-coin-master-2021-link_GM406889139.pdfIn PDF document text
    • http://upes.edu.sv/ckfinder/userfiles/files/how-to-download-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://upes.edu.sv/ckfinder/userfiles/files/coin-master-hack-2021-free_GM406889139.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_003_off000049ba.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x49BA 26204 bytes
SHA-256: 48a839d1272e223e1450fab9d7b8208dcb74582b5638e70872b7a574141c559c
font_01_sfnt_off0000850a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x850A 17740 bytes
SHA-256: b4d4c972e4571c6533ebd60601472515a9d19d13ad1d189b55006888a0b23e02

Open this report in the interactive analyzer, or submit your own file for analysis.