Malicious PDF — malware analysis report

Static analysis result for SHA-256 ab0aef3210284e9f…

MALICIOUS

PDF

29.8 KB Created: 2021-07-19 06:30:55 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 20a574e69b55b16175a91ee8fe0935cc SHA-1: 54d94aebb4d555fd1817a967105ba0d462f6c5a1 SHA-256: ab0aef3210284e9fba214b819e88f027b2dc560b6c2a37bccacba78c661212c1
60 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document uses social engineering lures, such as a fake download button and urgency language, to trick users into clicking a link. This link, http://netcdn.tw/app/479516143/minecraft-free-download-windows-game-hack, leads to a site offering a "free Minecraft generator," a common lure for malware distribution. While no scripts were directly extracted, the PDF structure and embedded URLs suggest a malicious intent to redirect users to a potentially harmful site.

Machine Learning

  • Nyx PDF Classifier clean score 0.0560

Heuristics 5

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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/minecraft-free-download-windows-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_off0000216a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x216A 22176 bytes
SHA-256: 97e8958c27cbd93f3d02997fb52c6398a69a26d301dd022d0445aad25051d60d
font_01_sfnt_off00005264.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5264 18488 bytes
SHA-256: 01dcb0f2ff627f41b1d4924369c472c3c2df1c4c10fc263e12ce9879fd09d82b

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