Malicious PDF — malware analysis report

Static analysis result for SHA-256 ef1b1678c81d610d…

MALICIOUS

PDF

38.8 KB Created: 2021-05-24 06:43:17 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: fa133dc7d4c17ee42b6086898284a09e SHA-1: 0a933aba03ff0c2b50bbf56abc812f4255aca5a0 SHA-256: ef1b1678c81d610def9d651cecdac01ce63c164b27c336b456c684e843926605
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9476

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 https://netcdn.xyz/app/406889139/coin-master-hack-activegamer-game-hack PDF link annotation
    • http://moringaforlove.com/images/free-tiktok-followers_GM835599320.pdfIn PDF document text
    • http://moringaforlove.com/images/oprewards-free-robux_GM431946152.pdfIn PDF document text
    • http://moringaforlove.com/images/coin-master-apk_GM406889139.pdfIn PDF document text
    • http://moringaforlove.com/images/how-to-hack-roblox-to-get-robux_GM431946152.pdfIn PDF document text
    • http://moringaforlove.com/images/pubg-uc-and_GM1330123889.pdfIn PDF document text
    • 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
stream_002_off000032f2.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x32F2 29984 bytes
SHA-256: 0d45fc73beb7d7e082095b38ad9796bb7db9eae3117dfd1d94bb9a2b4f0de43f
font_01_sfnt_off00007661.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7661 18376 bytes
SHA-256: 7942159ea88d166bbca90a684af9c7642873a6db171e4c543e33bc315b6ed94a

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