Malicious PDF — malware analysis report

Static analysis result for SHA-256 e02289eb8f380e35…

MALICIOUS

PDF

36.8 KB Created: 2021-05-21 13:02:38 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 9531c176e0705a416bc431cd8d31e249 SHA-1: 52600b59c1a2f70dc2c44206e7945ceb1a730fbc SHA-256: e02289eb8f380e35b4f9a4550ee119568aa1450855fcd78dde48210edbb323ff
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors, specifically advertising 'free generator' or 'game hack' lures. The document body and embedded links suggest a social engineering tactic to trick users into visiting potentially harmful websites. The ML classifier also strongly indicated maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9447

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/how-to-get-minecraft-java-for-free-game-hack In PDF document text
    • http://zercalo.org/images/free-promo-codes-for-robux_GM431946152.pdfIn PDF document text
    • http://zercalo.org/images/is-there-a-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://zercalo.org/images/coin-master-cheat-codes-free_GM406889139.pdfIn PDF document text
    • http://zercalo.org/images/freespincoin-masterlinkdownload_GM406889139.pdfIn PDF document text
    • http://zercalo.org/images/mcpe-master-hack-coins_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_002_off00003347.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3347 26516 bytes
SHA-256: 443d5edf1af35248862a11a5217da8f366dba3aa37849c4b50ef0a252eb83f21
font_01_sfnt_off00006ee8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6EE8 18152 bytes
SHA-256: f45ec97da20a8e70f6e7437c3ced33d3bcbd99aef5af4daf3be0ff08d51a9e58

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