PDF static analysis report

Static analysis result for SHA-256 a8fc0bfa31adfa90…

SUSPICIOUS

PDF

30.3 KB Created: 2021-07-24 11:34:04 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 38af8578f5ba84bf8626c4ed06bfe8d8 SHA-1: 6a70ee4bbd9528f1d3fb884af156c217a906b605 SHA-256: a8fc0bfa31adfa90c4c466890ff6f14feb58f2a465f21b0ef1ba7c2b2bac6410
52 Risk Score

Malware Insights

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

The PDF document uses a lure related to free Minecraft accounts and game hacks to entice users to click on a link. This link, http://netcdn.tw/app/479516143/free-minecraft-java-account-game-hack, leads to a suspicious domain. The presence of a 'download button' heuristic further supports the malicious intent of directing users to a potentially harmful download or exploit. No scripts were extracted, but the overall pattern suggests a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier clean score 0.0560

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high 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.
  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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 http://netcdn.tw/app/479516143/free-minecraft-java-account-game-hack PDF link annotation
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000229b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x229B 22820 bytes
SHA-256: a6d4a01673d2916627c7af901c852b179908424fb0c5a79b743e53f5f6c6b041
font_01_sfnt_off00005585.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5585 18128 bytes
SHA-256: ad2a0848393495eee102bd1b36be1bc15cd9afc8a8e02692ab65cad6db8d4212

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