Malicious PDF — malware analysis report

Static analysis result for SHA-256 161614d69acc395c…

MALICIOUS

PDF

40.9 KB Created: 2021-05-12 05:49:20 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 6937f50d151e574b9265e1bfad41db3c SHA-1: b96ec94d82c3e5b1b290d4d193727b4e7d5e4216 SHA-256: 161614d69acc395c8094921829978de59e918e09592d571836f9863f345d996f
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure related to game hacks and free currency, directing users to a malicious redirector URL. The redirector, in turn, hosts multiple other malicious PDF files, indicating a chain of malicious content delivery. The ML classifier also strongly flagged this document as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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-hack-no-survey-or-verification-game-hack In PDF document text
    • http://www.salwangurgaon.com/files/coin-master-hack-2021-download_GM406889139.pdfIn PDF document text
    • http://www.salwangurgaon.com/files/games-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.salwangurgaon.com/files/daily-free-spins_GM406889139.pdfIn PDF document text
    • http://www.salwangurgaon.com/files/coin-master-unlimited-spins-apk-free-download_GM406889139.pdfIn PDF document text
    • http://www.salwangurgaon.com/files/free-coin-spin-daily-link-for-coin-master-game_GM406889139.pdfIn PDF document text
    • http://www.salwangurgaon.com/files/coin-master-hack-2021-without-verification_GM406889139.pdfIn PDF document text
    • http://www.salwangurgaon.com/files/robux-today_GM431946152.pdfIn PDF document text
    • http://www.salwangurgaon.com/files/free-spin-appscoin-master_GM406889139.pdfIn PDF document text
    • http://www.salwangurgaon.com/files/coin-master-reward-link-2021_GM406889139.pdfIn PDF document text
    • http://www.salwangurgaon.com/files/roblox-hack-tool_GM431946152.pdfIn PDF document text
    • http://www.salwangurgaon.com/files/how-to-get-free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • http://www.salwangurgaon.com/files/coin-master-rare-cards-hack_GM406889139.pdfIn PDF document text
    • http://www.salwangurgaon.com/files/roblox-hack-scripts-pastebin_GM431946152.pdfIn PDF document text
    • http://www.salwangurgaon.com/files/free-robux-stream_GM431946152.pdfIn PDF document text
    • http://www.salwangurgaon.com/files/free-robux-codes-2021-not-used_GM431946152.pdfIn PDF document text
    • http://www.salwangurgaon.com/files/coin-master-reward-link_GM406889139.pdfIn PDF document text
    • http://www.salwangurgaon.com/files/free-spins-coin-master-november-2021_GM406889139.pdfIn PDF document text
    • http://www.salwangurgaon.com/files/roblox-hacks-and-cheats_GM431946152.pdfIn PDF document text
    • http://www.salwangurgaon.com/files/coin-master-free-spins-and-coins-link-today_GM406889139.pdfIn PDF document text
    • http://www.salwangurgaon.com/files/appsmob-coin-master-hack_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
stream_003_off0000478a.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x478A 23744 bytes
SHA-256: 5deadd852739c0ea557fc0fa8aceb92b618f33615edf0f1c3774d6d16eed4864
font_01_sfnt_off00007d40.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D40 18284 bytes
SHA-256: 11bfbc115034705528bf6e10e44e61aa29d499e253164c4385166f501b43b311

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