Malicious PDF — malware analysis report

Static analysis result for SHA-256 9ccba391fb1ed67c…

MALICIOUS

PDF

36.3 KB Created: 2021-05-10 11:46:27 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-27
MD5: 69557835fa83ab047e51e9551fd64a30 SHA-1: c98096552b04caa6e58f5c4d4ac9fed0168162c0 SHA-256: 9ccba391fb1ed67c7c7fc086817b94cc4702199dd31bef25d883e96309d4528d
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains multiple links to a known malicious redirector infrastructure, specifically advertising a 'game hack' or 'generator' for Minecraft. The document body reinforces this lure with phrases like 'CLICK HERE TO ACCESS MINECRAFT GENERATOR'. This indicates a social engineering attempt to trick the user into visiting a malicious URL, likely leading to malware download or further compromise.

Machine Learning

  • Nyx PDF Classifier clean score 0.0284

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-for-free-on-mac-game-hack In 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_003_off00003404.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3404 25568 bytes
SHA-256: 8734562087a420bf0349415e25513b951df5cc3575cdebc035a39e4b446cc685
font_01_sfnt_off00006dbd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6DBD 17872 bytes
SHA-256: b6208a51cd80fab2e9318da305006c0e70657a6f065b62408d4ccaae69eb5aa0

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