Malicious PDF — malware analysis report

Static analysis result for SHA-256 065abfc7fd0d284f…

MALICIOUS

PDF

33.1 KB Created: 2021-07-06 11:52:31 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: deed4389d389fa83c1cdde2db8259f65 SHA-1: 72abe7c8c6ada05afb67474e0bc3d6a3e22b7796 SHA-256: 065abfc7fd0d284f5bfb906f48098af5124effabd746313abd02b2b78c55f9c0
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links, including one identified as a malicious redirector, that lead to websites promising game hacks and free in-game currency. The document body and heuristics indicate a lure for popular games like Robux and Coin Master, aiming to trick users into visiting potentially harmful sites. No scripts were extracted, but the presence of malicious redirectors and the lure content strongly suggest a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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 http://netcdn.tw/app/431946152/how-to-get-free-robux-youtube-game-hack In PDF document text
    • http://elearning.mtsnegeri9cirebon.sch.id/__statics/gudangsoal/files/free-coins-coin-master-no-human-verification_GM406889139.pdfIn PDF document text
    • http://elearning.mtsnegeri9cirebon.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://elearning.mtsnegeri9cirebon.sch.id/__statics/gudangsoal/files/coin-master-hack-without-verification-2021_GM406889139.pdfIn PDF document text
    • http://elearning.mtsnegeri9cirebon.sch.id/__statics/gudangsoal/files/free-2021-robux_GM431946152.pdfIn PDF document text
    • http://elearning.mtsnegeri9cirebon.sch.id/__statics/gudangsoal/files/get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://elearning.mtsnegeri9cirebon.sch.id/__statics/gudangsoal/files/free-coin-spin_GM406889139.pdfIn PDF document text
    • http://elearning.mtsnegeri9cirebon.sch.id/__statics/gudangsoal/files/promo-codes-for-free-robux_GM431946152.pdfIn PDF document text
    • http://elearning.mtsnegeri9cirebon.sch.id/__statics/gudangsoal/files/anyone-use-roblox-hacks_GM431946152.pdfIn PDF document text
    • http://elearning.mtsnegeri9cirebon.sch.id/__statics/gudangsoal/files/cheat-codes-for-pokemon-galaxy-in-roblox_GM431946152.pdfIn PDF document text
    • http://elearning.mtsnegeri9cirebon.sch.id/__statics/gudangsoal/files/easy-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://elearning.mtsnegeri9cirebon.sch.id/__statics/gudangsoal/files/http-bit-ly-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://elearning.mtsnegeri9cirebon.sch.id/__statics/gudangsoal/files/minecraft-ios-mods_GM479516143.pdfIn PDF document text
    • http://elearning.mtsnegeri9cirebon.sch.id/__statics/gudangsoal/files/roblox-mobile-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://elearning.mtsnegeri9cirebon.sch.id/__statics/gudangsoal/files/coin-master-gold-cards-hack_GM406889139.pdfIn PDF document text
    • http://elearning.mtsnegeri9cirebon.sch.id/__statics/gudangsoal/files/roblox-jailbreak-money-hack-exploit_GM431946152.pdfIn PDF document text
    • http://elearning.mtsnegeri9cirebon.sch.id/__statics/gudangsoal/files/script-executor-roblox-free-download_GM431946152.pdfIn PDF document text
    • http://elearning.mtsnegeri9cirebon.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-youtube_GM431946152.pdfIn PDF document text
    • http://elearning.mtsnegeri9cirebon.sch.id/__statics/gudangsoal/files/roblox-blob-simualtor-hacks_GM431946152.pdfIn PDF document text
    • http://elearning.mtsnegeri9cirebon.sch.id/__statics/gudangsoal/files/free-coin-master-glitches_GM406889139.pdfIn PDF document text
    • http://elearning.mtsnegeri9cirebon.sch.id/__statics/gudangsoal/files/coin-master-hack-2021-ios-download_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
font_00_sfnt_off0000313d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x313D 22460 bytes
SHA-256: cf67e67a39fdc16feb86acc350109b2d826aaa0a87e736b60000005a8ddc20d0
font_01_sfnt_off00006365.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6365 19144 bytes
SHA-256: 69f15bf39f48ef2819c4fe30de5c54b763846b00a79d58176de4c37c6d2b833d

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