Malicious PDF — malware analysis report

Static analysis result for SHA-256 1823e2e7f60c078c…

MALICIOUS

PDF

44.8 KB Created: 2021-06-08 23:06:53 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 3c0641506dd0f977e3d8f960822363c4 SHA-1: 287a800bc23f33df05eea555d55f27a3ddd64c62 SHA-256: 1823e2e7f60c078cf68d7c740a5e4a021f0d684470a3a82d884840fe9b8f5072
168 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors, disguised as "game hacks" or "free generators". The document body and heuristics indicate a lure to click these links, which likely lead to further malicious content or downloads. While no scripts were explicitly extracted, the PDF structure and embedded links strongly suggest a phishing or redirection attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

Heuristics 5

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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.tw/app/431946152/how-to-hack-in-roblox-games-to-get-gold-game-hack In PDF document text
    • http://manfeld.dk/images/free-hacks-for-coin-master_GM406889139.pdfIn PDF document text
    • http://manfeld.dk/images/roblox-online-free-no-download_GM431946152.pdfIn PDF document text
    • http://manfeld.dk/images/best-roblox-hack-2021_GM431946152.pdfIn PDF document text
    • http://manfeld.dk/images/free-minecraft-bedrock-server-hosting_GM479516143.pdfIn PDF document text
    • http://manfeld.dk/images/free-spins-coin-master-links-app_GM406889139.pdfIn PDF document text
    • http://manfeld.dk/images/best-minecraft-hacked-client-2021_GM479516143.pdfIn PDF document text
    • http://manfeld.dk/images/minecraft-bedrock-edition-free_GM479516143.pdfIn PDF document text
    • http://manfeld.dk/images/robux-free-robux_GM431946152.pdfIn PDF document text
    • http://manfeld.dk/images/robux-free-online_GM431946152.pdfIn PDF document text
    • http://manfeld.dk/images/can-you-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://manfeld.dk/images/60-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://manfeld.dk/images/coin-master-heaven-free-spins-today_GM406889139.pdfIn PDF document text
    • http://manfeld.dk/images/free-likes-and-followers-on-tiktok_GM835599320.pdfIn PDF document text
    • http://manfeld.dk/images/free-minecraft-java-account_GM479516143.pdfIn PDF document text
    • http://manfeld.dk/images/is-minecraft-free-on-xbox_GM479516143.pdfIn PDF document text
    • http://manfeld.dk/images/coin-master-daily-free-spins-blogspot_GM406889139.pdfIn PDF document text
    • http://manfeld.dk/images/best-free-minecraft-server-hosting-reddit_GM479516143.pdfIn PDF document text
    • http://manfeld.dk/images/where-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://manfeld.dk/images/free-spins-on-coin-master-links-2021_GM406889139.pdfIn PDF document text
    • http://manfeld.dk/images/coin-master-unlimited-free-spins_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00004e18.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4E18 25744 bytes
SHA-256: e383bade0c623eb108901c0f1e2edb7ab3a8c4bf4d56196cf333e5f74840f332
font_01_sfnt_off00008a7c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A7C 18884 bytes
SHA-256: 9f5310ce1cb35aacdf2ac21237d6be4b97fbe4863c673197ddd4bd6a39d6da1e

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