Malicious PDF — malware analysis report

Static analysis result for SHA-256 043c6d2f5b7ff3d6…

MALICIOUS

PDF

42.2 KB Created: 2021-05-18 04:12:07 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 84856cc9ede09a23eb8af79c3e19e4bc SHA-1: 57015062dacac5ab1594d885be9d814186c24360 SHA-256: 043c6d2f5b7ff3d6a5bc0f5081a54799b91a42986726510a712de131052e1c9d
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors, disguised as 'game hacks' or 'free spins'. The ML classifier also flagged this PDF as malicious. The primary lure appears to be a 'free generator / game hack' which redirects to a malicious URL, likely to download a second-stage payload or phish for credentials.

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/479516143/simplysarc-game-hack In PDF document text
    • https://alarmed.pl/images/coin-master-golden-cards-hack_GM406889139.pdfIn PDF document text
    • https://alarmed.pl/images/coin-master-daily-spin-link-app_GM406889139.pdfIn PDF document text
    • https://alarmed.pl/images/get-2021-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://alarmed.pl/images/free-robux-codes-no-human-verification_GM431946152.pdfIn PDF document text
    • https://alarmed.pl/images/how-to-get-free-robux-by-playing-games_GM431946152.pdfIn PDF document text
    • https://alarmed.pl/images/free-spins-link-in-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://alarmed.pl/images/how-do-u-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://alarmed.pl/images/coin-master-hack-mod-apk-free-download_GM406889139.pdfIn PDF document text
    • https://alarmed.pl/images/how-to-get-free-robux-on-roblox-2021_GM431946152.pdfIn PDF document text
    • https://alarmed.pl/images/coin-master-hack-pc-free_GM406889139.pdfIn PDF document text
    • https://alarmed.pl/images/free-robux-com-roblox_GM431946152.pdfIn PDF document text
    • https://alarmed.pl/images/free-roblox-hack-us_GM431946152.pdfIn PDF document text
    • https://alarmed.pl/images/how-to-hack-roblox-accounts_GM431946152.pdfIn PDF document text
    • https://alarmed.pl/images/free-robux-no-verification-or-survey_GM431946152.pdfIn PDF document text
    • https://alarmed.pl/images/coin-master-daily-free-spin-and-coin_GM406889139.pdfIn PDF document text
    • https://alarmed.pl/images/village-coin_GM406889139.pdfIn PDF document text
    • https://alarmed.pl/images/how-to-hack-coin-master-game-without-verification_GM406889139.pdfIn PDF document text
    • https://alarmed.pl/images/how-to-get-free-robux-no-verification-2021_GM431946152.pdfIn PDF document text
    • https://alarmed.pl/images/how-to-get-free-spins-on-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://alarmed.pl/images/coin-master-hack-355_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_off00004a3e.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A3E 25592 bytes
SHA-256: 3b937bfc2979026b242c23663650bedba8f9f8ed14ddd2b423843a6318ffc6ff
font_01_sfnt_off00008385.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8385 18156 bytes
SHA-256: d1e3c8cc46daa8b4e8a3620fd036fa3afc0951971ec214e12238e772f71f3550

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