Malicious PDF — malware analysis report

Static analysis result for SHA-256 d4d0790addb773d6…

MALICIOUS

PDF

41.3 KB Created: 2021-05-19 01:08:41 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 05be4a1cfa57d9fb292ec8cbe64332fe SHA-1: 992d5c64638519e7326979570cf721d3f8c12426 SHA-256: d4d0790addb773d603e4d2c8951574e3eb016809c0aae1727b18829f5cd44f01
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 0.9971

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/1094591345/how-to-get-free-pokeballs-in-pokemon-go-game-hack PDF link annotation
    • http://practicaltech.com/images/minecraft-gun-games-free_GM479516143.pdfIn PDF document text
    • http://practicaltech.com/images/how-to-get-free-robux-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://practicaltech.com/images/coin-master-free-cards-link_GM406889139.pdfIn PDF document text
    • http://practicaltech.com/images/roblox-com-hack_GM431946152.pdfIn PDF document text
    • http://practicaltech.com/images/coin-master-hack-mobile_GM406889139.pdfIn PDF document text
    • http://practicaltech.com/images/pixies-gigantic-coin-master-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://practicaltech.com/images/how-to-get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://practicaltech.com/images/coin-master-daily-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://practicaltech.com/images/how-to-scam-on-roblox_GM431946152.pdfIn PDF document text
    • http://practicaltech.com/images/coin-master-free-spins-and-coins-today-gift-reward_GM406889139.pdfIn PDF document text
    • http://practicaltech.com/images/what-is-wurst_GM479516143.pdfIn PDF document text
    • http://practicaltech.com/images/free-robux-generator-no-survey_GM431946152.pdfIn PDF document text
    • http://practicaltech.com/images/scaffold-minecraft-hack_GM479516143.pdfIn PDF document text
    • http://practicaltech.com/images/coinmaster-twitter_GM406889139.pdfIn PDF document text
    • http://practicaltech.com/images/free-roblox-toys_GM431946152.pdfIn PDF document text
    • http://practicaltech.com/images/roblox-free-robux-hack_GM431946152.pdfIn PDF document text
    • http://practicaltech.com/images/roblox-hacking-website_GM431946152.pdfIn PDF document text
    • http://practicaltech.com/images/bloxland-earn-free-robux_GM431946152.pdfIn PDF document text
    • http://practicaltech.com/images/minecraft-free-demo_GM479516143.pdfIn PDF document text
    • http://practicaltech.com/images/coin-master-hack-apk_GM406889139.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_off00004888.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4888 23784 bytes
SHA-256: 1589001c3f4fd00afaef878ac2dd301cd8b47d1d8effc115db9b309945dbde8c
font_01_sfnt_off00007e70.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E70 18568 bytes
SHA-256: f0a469e2b51db9349bf40bcf8fc8c44ad0ec8c79745cd51525627966c676374b

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