Malicious PDF — malware analysis report

Static analysis result for SHA-256 3cb2173d2875e954…

MALICIOUS

PDF

40.0 KB Created: 2021-05-10 18:30:14 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 2a41e8cb45dac83afb29eba909073bdf SHA-1: 97c271a28d0a5170e85c89b9273e16d791d70397 SHA-256: 3cb2173d2875e95406046ec491cd94b0d7d94ee5ad069736494442faf921aedb
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs that are designed to lure users into clicking on them by promising game-related rewards. The primary URL, 'https://netcdn.xyz/app/406889139/free-pet-food-for-coin-master-game-hack', is flagged as a game hack redirector. The document body, though heavily obfuscated, contains references to these lures and the authoring application suggests it was generated programmatically, likely to host these malicious links. The ML classifier strongly indicates maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9968

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/free-pet-food-for-coin-master-game-hack PDF link annotation
    • http://musestravel.com/images/get-free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://musestravel.com/images/rewards-robux_GM431946152.pdfIn PDF document text
    • http://musestravel.com/images/roblox-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • http://musestravel.com/images/hack-para-coin-master-singapore_GM406889139.pdfIn PDF document text
    • http://musestravel.com/images/what-games-on-roblox-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://musestravel.com/images/hack-coin-master-no-verification_GM406889139.pdfIn PDF document text
    • http://musestravel.com/images/how-to-get-free-robux-promo-codes_GM431946152.pdfIn PDF document text
    • http://musestravel.com/images/free-spin-codes-coin-master_GM406889139.pdfIn PDF document text
    • http://musestravel.com/images/coin-master-free-spins-link-download_GM406889139.pdfIn PDF document text
    • http://musestravel.com/images/roblox-free-robux-hack_GM431946152.pdfIn PDF document text
    • http://musestravel.com/images/how-to-hack-coin-master-game-without-root_GM406889139.pdfIn PDF document text
    • http://musestravel.com/images/coin-master-spins-2021_GM406889139.pdfIn PDF document text
    • http://musestravel.com/images/free-coin-master-androd-cheats-2021_GM406889139.pdfIn PDF document text
    • http://musestravel.com/images/how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://musestravel.com/images/roblox-old-avatar_GM431946152.pdfIn PDF document text
    • http://musestravel.com/images/robux-free-online_GM431946152.pdfIn 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_off00004412.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4412 24000 bytes
SHA-256: 4d1406d414cfb75a6c3a16cb3ff2b97a1f9f1c4a07c33899e912fef97c2e3653
font_01_sfnt_off00007acd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7ACD 18040 bytes
SHA-256: 80b08f0f47efeae7474973f213c4bda075b9244837f94a62dadeca22caed91d8

Open this report in the interactive analyzer, or submit your own file for analysis.