Malicious PDF — malware analysis report

Static analysis result for SHA-256 7e5b574b65164301…

MALICIOUS

PDF

35.3 KB Created: 2021-07-04 02:04:53 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: d245bc2944675b96bec6486c4d639273 SHA-1: 7029c0f387207dfdf60e3ffcae8154cd3498a908 SHA-256: 7e5b574b6516430127073b907db9439fd270c46d8c36bde251862d088efe359d
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links, including one to 'netcdn.tw', which is flagged as a game hack lure. This suggests the document is designed to trick users into visiting a potentially malicious website by promising in-game advantages. The ML classifier also strongly indicated maliciousness, supporting the lure-based attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high 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.
  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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/coin-master-spins-hack-2021-game-hack PDF link annotation
    • http://uilis.unsyiah.ac.id/ebook/repository/free-cash-roblox-pizza-place_GM431946152.pdfIn PDF document text
    • http://uilis.unsyiah.ac.id/ebook/repository/roblox-free-animation-pack_GM431946152.pdfIn PDF document text
    • http://uilis.unsyiah.ac.id/ebook/repository/jefftec-free-robux_GM431946152.pdfIn PDF document text
    • http://uilis.unsyiah.ac.id/ebook/repository/how-to-get-free-robux-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • http://uilis.unsyiah.ac.id/ebook/repository/atticus129-roblox-hacked_GM431946152.pdfIn PDF document text
    • http://uilis.unsyiah.ac.id/ebook/repository/roblox-cheat-money-in-jailbreak_GM431946152.pdfIn PDF document text
    • http://uilis.unsyiah.ac.id/ebook/repository/how-to-get-robux-hack-on-computer_GM431946152.pdfIn PDF document text
    • http://uilis.unsyiah.ac.id/ebook/repository/hacker-un-compte-roblox_GM431946152.pdfIn PDF document text
    • http://uilis.unsyiah.ac.id/ebook/repository/coin-master-free-spins-link-today-haktuts_GM406889139.pdfIn PDF document text
    • http://uilis.unsyiah.ac.id/ebook/repository/any-working-robux-hacks_GM431946152.pdfIn PDF document text
    • http://uilis.unsyiah.ac.id/ebook/repository/free-roblox-sparkle-time-shirt_GM431946152.pdfIn PDF document text
    • http://uilis.unsyiah.ac.id/ebook/repository/hack-xp-net-coin-master_GM406889139.pdfIn PDF document text
    • http://uilis.unsyiah.ac.id/ebook/repository/how-to-make-your-shirt-free-on-roblox_GM431946152.pdfIn PDF document text
    • http://uilis.unsyiah.ac.id/ebook/repository/cheat-roblox-mad-city-vf_GM431946152.pdfIn PDF document text
    • http://uilis.unsyiah.ac.id/ebook/repository/how-to-download-roblox-cheat-engine_GM431946152.pdfIn PDF document text
    • http://uilis.unsyiah.ac.id/ebook/repository/free-roblox-hair-red_GM431946152.pdfIn PDF document text
    • http://uilis.unsyiah.ac.id/ebook/repository/plug-toolbox-for-minecraft-free-ios_GM479516143.pdfIn PDF document text
    • http://uilis.unsyiah.ac.id/ebook/repository/hack-roblox-steven-s_GM431946152.pdfIn PDF document text
    • http://uilis.unsyiah.ac.id/ebook/repository/how-do-you-get-thengs-in-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://uilis.unsyiah.ac.id/ebook/repository/how-to-get-free-robux-without-any-verification_GM431946152.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_off00003223.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3223 23092 bytes
SHA-256: ab3c009435e88f26d2fea9a0ba5b3129e1826170b0d6433fa83f980b31f8a5eb
font_01_sfnt_off0000662e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x662E 18580 bytes
SHA-256: 63d6adc7563b485c3174704ac8a7a6a262dc9bf1deaf17837918a23c7f43ebb5

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