Malicious PDF — malware analysis report

Static analysis result for SHA-256 919fe8b99c2ae5bd…

MALICIOUS

PDF

38.9 KB Created: 2021-05-19 15:37:56 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 9d59396fdf0bcdada19c2a5fa06e11ab SHA-1: 5464e67ebd6fbec12587dc82c15a91f7c6513681 SHA-256: 919fe8b99c2ae5bd7718a6e32ade98221283cb1a65d5fe48171f66bfd5cb90f2
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains a lure related to a hacked Minecraft account, directing users to a malicious URL. This URL is flagged as a known malicious redirector, indicating a phishing or scam attempt. The document body and embedded artifacts suggest a social engineering tactic to trick users into visiting a potentially harmful site.

Machine Learning

  • Nyx PDF Classifier clean score 0.0334

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/my-minecraft-account-was-hacked-game-hack In PDF document text
    • https://minecraft.net���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_off000035c8.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x35C8 30192 bytes
SHA-256: ccce4d1963c1b23e31133f0e9d7d8a6b3248acdf7ef0dfd3e6793fb812acf8d8
font_01_sfnt_off000075ec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75EC 18572 bytes
SHA-256: 8fcc029f3058febc4000d5efca0362144e4b81fd53f2a26dc97808c5095a664d

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