Malicious PDF — malware analysis report

Static analysis result for SHA-256 b93692a0fa0b6c18…

MALICIOUS

PDF

34.8 KB Created: 2021-07-04 11:58:31 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 469723d06b194c23072b15295f3294d1 SHA-1: 03c207c3cb714af11d5405552ad7fca17eeccfae SHA-256: b93692a0fa0b6c18c4aea568b2251a4b66871448f7d815a211d49e4071dfaab1
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure of game hacks and free currency to trick users into clicking malicious links. The primary link directs to a known malicious redirector, which likely serves as a gateway to further malicious content or downloads. The ML classifier strongly indicated maliciousness, and the presence of multiple redirector links reinforces this assessment.

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/coin-master-attack-madness-hack-game-hack In PDF document text
    • http://www.salwangurgaon.com/files/free-diamonds-coin-master_GM406889139.pdfIn PDF document text
    • http://www.salwangurgaon.com/files/coin-master-unlimited-spins-hack_GM406889139.pdfIn PDF document text
    • http://www.salwangurgaon.com/files/roblox-teleport-hack-download_GM431946152.pdfIn PDF document text
    • http://www.salwangurgaon.com/files/free-spin-link-for-coin-master-haktuts_GM406889139.pdfIn PDF document text
    • http://www.salwangurgaon.com/files/free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://www.salwangurgaon.com/files/free-robux-with-survey_GM431946152.pdfIn PDF document text
    • http://www.salwangurgaon.com/files/free-spins-on-coin-master-cheat_GM406889139.pdfIn PDF document text
    • http://www.salwangurgaon.com/files/free-roblox-items-codes_GM431946152.pdfIn PDF document text
    • http://www.salwangurgaon.com/files/coin-master-online-hack-download_GM406889139.pdfIn PDF document text
    • http://www.salwangurgaon.com/files/coin-master-free-spins-twitter_GM406889139.pdfIn PDF document text
    • http://www.salwangurgaon.com/files/op-rewards-free-robux_GM431946152.pdfIn PDF document text
    • http://www.salwangurgaon.com/files/roblox-free-robux-codes_GM431946152.pdfIn PDF document text
    • http://www.salwangurgaon.com/files/for-free-robux-on-roblox-com-free4mobile24-com_GM431946152.pdfIn PDF document text
    • http://www.salwangurgaon.com/files/does-roblox-premium-expire_GM431946152.pdfIn PDF document text
    • http://www.salwangurgaon.com/files/coin-master-free-spins-and-coins-today-gift-reward_GM406889139.pdfIn PDF document text
    • http://www.salwangurgaon.com/files/win-free-robux_GM431946152.pdfIn PDF document text
    • http://www.salwangurgaon.com/files/free-robux-mod_GM431946152.pdfIn PDF document text
    • http://www.salwangurgaon.com/files/how-to-get-free-robux-without-verification-or-surveys_GM431946152.pdfIn PDF document text
    • http://www.salwangurgaon.com/files/free-robux-for-free_GM431946152.pdfIn PDF document text
    • http://www.salwangurgaon.com/files/free-ways-to-get-robux_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 5

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_off000031de.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x31DE 22968 bytes
SHA-256: 65d6afa449eca3b1dfe72696952982a550b81193c0a990d3415306e3d0b032d7
font_01_sfnt_off00006569.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6569 18180 bytes
SHA-256: 0e3693565eb559dbb36948716ac3a9ea662529f04877f03ed602e0356468b6c6

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