Malicious PDF — malware analysis report

Static analysis result for SHA-256 34caa5a49c453cfd…

MALICIOUS

PDF

36.2 KB Created: 2021-05-20 18:07:52 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: bf7599952da06e8f6ccdc6b657165951 SHA-1: e63e519bdbb86b4b9c7999c3e9f6e21ebd2e6362 SHA-256: 34caa5a49c453cfdab4c046f81608b84996bdaddffc6b9d904bf9918aae47d51
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains multiple embedded links, including one to a known malicious redirector infrastructure. The document body text and heuristics indicate a lure for game hacks or generators, which is a common social engineering tactic to trick users into downloading malicious files or visiting further compromised sites. The ML classifier also flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9648

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/free-minecraft-wallpaper-game-hack In PDF document text
    • http://www.atlanticexportsltd.com/uploaded_files/userfiles/files/hack-coin-master-android-game_GM406889139.pdfIn PDF document text
    • http://www.atlanticexportsltd.com/uploaded_files/userfiles/files/coin-master-cards_GM406889139.pdfIn PDF document text
    • http://www.atlanticexportsltd.com/uploaded_files/userfiles/files/coin-master-hack-without-verification-2021_GM406889139.pdfIn PDF document text
    • http://www.atlanticexportsltd.com/uploaded_files/userfiles/files/free-robux-no-human-verification-no-survey_GM431946152.pdfIn PDF document text
    • http://www.atlanticexportsltd.com/uploaded_files/userfiles/files/coin-master-hack-mod-apk_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_off0000346f.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x346F 25196 bytes
SHA-256: 888cc203f117a8e3b94f606b1b5a41fc575099cc28ae69ca873f79fd05fd8d2a
font_01_sfnt_off00006cfb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6CFB 18016 bytes
SHA-256: 8ceb16c7d7437810277100198a3ec62a9f5fb112cf647c9207096ad65213b8bb

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