Malicious PDF — malware analysis report

Static analysis result for SHA-256 af14afef569bf54f…

MALICIOUS

PDF

37.1 KB Created: 2021-05-21 01:39:33 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-20
MD5: 7f1dd8435875c49f76127993c875beb7 SHA-1: 6d7824b6d94cda26c11ad6899383e4ea8c3fa4f6 SHA-256: af14afef569bf54f1449727390fe96583ad1f86dd7ed175d11e749373195e6c9
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded URLs and a call-to-action lure for a 'Minecraft Diamond Finder Hack'. It links to malicious redirector infrastructure, indicating an attempt to lead the user to a potentially harmful site. The presence of embedded URLs and the nature of the lure suggest a phishing or scam attempt, likely delivered as a spearphishing attachment.

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/minecraft-diamond-finder-hack-game-hack In PDF document text
    • http://biotronics.com.cy/images/how-to-make-a-minecraft-pe-server-for-free_GM479516143.pdfIn PDF document text
    • http://biotronics.com.cy/images/play-minecraft-free-online-no-download_GM479516143.pdfIn PDF document text
    • http://biotronics.com.cy/images/free-coin-link-for-coin-master_GM406889139.pdfIn PDF document text
    • http://biotronics.com.cy/images/daily-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
    • http://biotronics.com.cy/images/free-robux-no-human-verification-or-survey-or-download-2021_GM431946152.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_off0000368d.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x368D 25088 bytes
SHA-256: d6ee3aed28f099cb860cfb9bea95005a9ec35623982cc62fdd06e044c5420906
font_01_sfnt_off00006f82.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F82 18484 bytes
SHA-256: 265962787b73e694aac7c67ed987488fc8d8021a4c66c1127c37ccae154b779c

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