Malicious PDF — malware analysis report

Static analysis result for SHA-256 feb916f7b345d62f…

MALICIOUS

PDF

37.6 KB Created: 2021-05-22 02:14:01 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 5c53399d8a30cf15147bbf687dcd98eb SHA-1: 7245ab55ec1b2d8e572773fa0ebfb93f756f4ec1 SHA-256: feb916f7b345d62f6320daf56118c4a4f8bd2ddd387ef2ce80e045671bf17297
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to malicious redirectors, disguised as 'free generators' or 'game hacks'. The document body explicitly mentions 'Free Tiktok Likes Without Verification' and includes a call to action to 'CLICK HERE TO ACCESS TIKTOK GENERATOR', directing users to a malicious URL. The presence of embedded URLs and the ML classifier flagging it as malicious strongly suggest a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7010

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/835599320/free-tiktok-likes-without-verification-game-hack In PDF document text
    • https://datavoiz.com/images/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • https://datavoiz.com/images/free-coin-spin_GM406889139.pdfIn PDF document text
    • https://datavoiz.com/images/coin-master-connection-lost_GM406889139.pdfIn PDF document text
    • https://datavoiz.com/images/easypoints-gg-roblox_GM431946152.pdfIn PDF document text
    • https://datavoiz.com/images/how-to-get-free-robux-for-real_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off0000304c.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x304C 24260 bytes
SHA-256: 32d3a4d46573f62104ddccb0393564f235be03f26533f2b227bf5423374a5f36
font_01_sfnt_off00006697.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6697 3124 bytes
SHA-256: d6dd29adb69da7f9a23a5e3791282a61e2f811794f560a0c409c8747766d9102
font_02_sfnt_off00007150.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7150 18324 bytes
SHA-256: 2890867b549cf671f2c98eef92adc8de00a1acce0cbbf08ac1c0ae5a6c34295b

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