Malicious PDF — malware analysis report

Static analysis result for SHA-256 1b74cc1ab448a8e9…

MALICIOUS

PDF

32.3 KB Created: 2021-07-19 02:40:39 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 6618541b4529346b26dda5eeae107d7e SHA-1: b987a4cf19acf48c61a527f1e5b3be3e48a88be7 SHA-256: 1b74cc1ab448a8e9b06da4896009bccd76217767ebb00d21ef1520340d24dbca
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to redirectors and potentially malicious domains, disguised as 'free generator' or 'game hack' lures. The document body explicitly contains a call to action to access a 'TIKTOK GENERATOR' via a provided URL. The presence of these links and the deceptive content strongly suggest a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9941

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/835599320/free-tiktok-fans-no-verification-game-hack In PDF document text
    • http://linens.kiev.ua/images/free-robux-gift-card-codes-2021_GM431946152.pdfIn PDF document text
    • http://linens.kiev.ua/images/free-robux-roblox-promo-codes_GM431946152.pdfIn PDF document text
    • http://linens.kiev.ua/images/minecraft-pe-free-download-ios-no-jailbreak_GM479516143.pdfIn PDF document text
    • http://linens.kiev.ua/images/free-tiktok-followers-instantly_GM835599320.pdfIn PDF document text
    • http://linens.kiev.ua/images/free-coins-coin-master_GM406889139.pdfIn PDF document text
    • http://linens.kiev.ua/images/minecraft-gun-games-free_GM479516143.pdfIn PDF document text
    • http://linens.kiev.ua/images/minecraft-java-free-trial_GM479516143.pdfIn PDF document text
    • http://linens.kiev.ua/images/minecraft-free-download-android_GM479516143.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
font_00_sfnt_off00002d1f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D1F 22176 bytes
SHA-256: cdff64652eec26918d74a246215ef80e26168f8f02cd3fb97a6d522ebac5e641
font_01_sfnt_off00005de6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DE6 17816 bytes
SHA-256: db30cff21771a834018d301e3e15668d4f696dd14c251b75c79f93eed26cd5f9

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