Malicious PDF — malware analysis report

Static analysis result for SHA-256 2ffd1074cd505930…

MALICIOUS

PDF

43.3 KB Created: 2021-05-20 02:10:45 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: f4a8cd1a7b2b9512c9ac25dffddf9988 SHA-1: 65a08b311d81ba7fcfbe5c725220384b24b8a0e5 SHA-256: 2ffd1074cd505930bcb66b29fe4666945b697da768d98053d02d2a06ae9b976e
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to a malicious domain, masquerading as a game hack generator. The ML classifier strongly indicated maliciousness, and the presence of a download button lure reinforces the deceptive nature of the document. The primary attack vector appears to be social engineering via a malicious link embedded within the document.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

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/406889139/coin-master-free-coins-hack-game-hack In PDF document text
    • http://www.pacoestrada.it/images/claim-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://www.pacoestrada.it/images/free-spin-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://www.pacoestrada.it/images/coin-master-gold-cards-hack_GM406889139.pdfIn PDF document text
    • http://www.pacoestrada.it/images/how-to-get-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • http://www.pacoestrada.it/images/coin-master-hack-iosgods_GM406889139.pdfIn PDF document text
    • http://www.pacoestrada.it/images/download-minecraft-bedrock_GM479516143.pdfIn PDF document text
    • http://www.pacoestrada.it/images/free-robux-groups-2021_GM431946152.pdfIn PDF document text
    • http://www.pacoestrada.it/images/how-to-hack-minecraft_GM479516143.pdfIn PDF document text
    • http://www.pacoestrada.it/images/robux-com-free_GM431946152.pdfIn PDF document text
    • http://www.pacoestrada.it/images/minecraft-free-ios-2021_GM479516143.pdfIn PDF document text
    • http://www.pacoestrada.it/images/get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.pacoestrada.it/images/coin-master-spin-ml_GM406889139.pdfIn PDF document text
    • http://www.pacoestrada.it/images/coin-master-hack-ios-no-jailbreak_GM406889139.pdfIn PDF document text
    • http://www.pacoestrada.it/images/robux-free-c_GM431946152.pdfIn PDF document text
    • http://www.pacoestrada.it/images/roblox-free-robux-hack_GM431946152.pdfIn PDF document text
    • http://www.pacoestrada.it/images/minecraft-noob-vs-pro-vs-hacker-vs-god_GM479516143.pdfIn PDF document text
    • http://www.pacoestrada.it/images/free-spin-coin-master-game_GM406889139.pdfIn PDF document text
    • http://www.pacoestrada.it/images/coin-master-hack-with-facebook-login_GM406889139.pdfIn PDF document text
    • http://www.pacoestrada.it/images/minecraft-pvp-hacks_GM479516143.pdfIn PDF document text
    • http://www.pacoestrada.it/images/coinmaster-spins_GM406889139.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
stream_003_off000049df.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x49DF 25260 bytes
SHA-256: d3397763a076bc8d95bbd63ab180663161a3deb1c38882fb799f2fdc400658df
font_01_sfnt_off00008458.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8458 19208 bytes
SHA-256: d102609597e207e69e9a9c649b02846ccde972d94b4f09c127d8732940829a8c

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