Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e7af4c9acf5afdb…

MALICIOUS

PDF

33.7 KB Created: 2021-07-05 05:36:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: e09d668cc24c92d52628b4c180a6e106 SHA-1: c400b615c7755cb5b55478f298a59b88e97455ed SHA-256: 0e7af4c9acf5afdb41228f6e512435fe7c2ed4c7e3b88c23fac53299d9471776
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting "free generator / game hack" lures. The ML classifier also strongly indicated maliciousness. The embedded links and the nature of the lures suggest an attempt to trick users into visiting potentially harmful sites, likely for further exploitation or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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.tw/app/406889139/hack-coin-master-spin-game-hack In PDF document text
    • https://www.tdbaska.hr/files/hack-robux_GM431946152.pdfIn PDF document text
    • https://www.tdbaska.hr/files/robloxheroxyz-free-robux_GM431946152.pdfIn PDF document text
    • http://www.tdbaska.hr/files/how-t-get-free-robux-2021-site-youtubecom_GM431946152.pdfIn PDF document text
    • http://www.tdbaska.hr/files/how-to-get-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://www.tdbaska.hr/files/how-to-hack-people-on-roblox_GM431946152.pdfIn PDF document text
    • http://www.tdbaska.hr/files/demon-roblox_GM431946152.pdfIn PDF document text
    • http://www.tdbaska.hr/files/free-robux-pastebin-raw_GM431946152.pdfIn PDF document text
    • http://www.tdbaska.hr/files/how-to-get-free-snacks-on-coin-master_GM406889139.pdfIn PDF document text
    • http://www.tdbaska.hr/files/100k-robux-hack_GM431946152.pdfIn PDF document text
    • http://www.tdbaska.hr/files/roblox-hacking-website_GM431946152.pdfIn PDF document text
    • http://www.tdbaska.hr/files/can-you-get-robux-for-free_GM431946152.pdfIn PDF document text
    • http://www.tdbaska.hr/files/how-to-become-a-hacker-in-roblox_GM431946152.pdfIn PDF document text
    • https://www.tdbaska.hr/files/ww-robux_GM431946152.pdfIn PDF document text
    • https://www.tdbaska.hr/files/free-snowman-roblox_GM431946152.pdfIn PDF document text
    • https://www.tdbaska.hr/files/coin-master-hack-generator_GM406889139.pdfIn PDF document text
    • https://www.tdbaska.hr/files/how-to-get-free-robux-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • http://www.tdbaska.hr/files/robux-money_GM431946152.pdfIn PDF document text
    • https://www.tdbaska.hr/files/coin-master-free-stuff_GM406889139.pdfIn PDF document text
    • http://www.tdbaska.hr/files/free-minecraft-alt-accounts_GM479516143.pdfIn PDF document text
    • http://www.tdbaska.hr/files/roblox-obc-hack-download_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 6

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_002_off00002ecb.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2ECB 22548 bytes
SHA-256: 9fb63ce57710ae0c4cd7fefb235054e2a4083c61cbc02c194cb1afe919bdc278
font_01_sfnt_off0000610d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x610D 18180 bytes
SHA-256: b0c69fb41316595c55bb75fd2f2f99b4f9c52d92968d5e259995507e4ea01459

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