Malicious PDF — malware analysis report

Static analysis result for SHA-256 67d29a5b8c93c262…

MALICIOUS

PDF

35.5 KB Created: 2021-07-05 08:37:07 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 3d21b47e9ab3c56a6399b16c3d855011 SHA-1: 3f31dd3a2ce0b0fc7f879891021a00b4b074d82e SHA-256: 67d29a5b8c93c262e37e3acc24cd5624c35e32b5533d022c2e783486ad3bfc1a
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 0.9980

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/406889139/coin-master-sound-daily-free-spins-link-today-game-hack PDF link annotation
    • http://www.valenciamaids.com/userfiles/files/roblox-scp-site-61-roleplay-free-morphs_GM431946152.pdfIn PDF document text
    • http://www.valenciamaids.com/userfiles/files/minecraft-hacks-pc_GM479516143.pdfIn PDF document text
    • http://www.valenciamaids.com/userfiles/files/roblox-free-robux-website_GM431946152.pdfIn PDF document text
    • http://www.valenciamaids.com/userfiles/files/coin-master-download-hack-ios_GM406889139.pdfIn PDF document text
    • http://www.valenciamaids.com/userfiles/files/how-to-get-free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://www.valenciamaids.com/userfiles/files/hackear-juego-coin-master-espaol_GM406889139.pdfIn PDF document text
    • http://www.valenciamaids.com/userfiles/files/free-item-roblox-pastebin_GM431946152.pdfIn PDF document text
    • http://www.valenciamaids.com/userfiles/files/toolbox-apk_GM479516143.pdfIn PDF document text
    • http://www.valenciamaids.com/userfiles/files/outlook-team-hack-roblox_GM431946152.pdfIn PDF document text
    • http://www.valenciamaids.com/userfiles/files/coin-master-game_GM406889139.pdfIn PDF document text
    • http://www.valenciamaids.com/userfiles/files/minecraft-fly-hack_GM479516143.pdfIn PDF document text
    • http://www.valenciamaids.com/userfiles/files/adopt-me-hack-roblox-money_GM431946152.pdfIn PDF document text
    • http://www.valenciamaids.com/userfiles/files/monster-slaying-simulator-cheats-roblox_GM431946152.pdfIn PDF document text
    • http://www.valenciamaids.com/userfiles/files/how-to-win-free-robux_GM431946152.pdfIn PDF document text
    • http://www.valenciamaids.com/userfiles/files/free-coin-master-link-2021_GM406889139.pdfIn PDF document text
    • http://www.valenciamaids.com/userfiles/files/robux-free-hack-no-human-verification-2021-windows-10_GM431946152.pdfIn PDF document text
    • http://www.valenciamaids.com/userfiles/files/get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://www.valenciamaids.com/userfiles/files/can-i-hack-coin-master-with-lucky-patcher_GM406889139.pdfIn PDF document text
    • http://www.valenciamaids.com/userfiles/files/coin-master-unlimited-spin-hack_GM406889139.pdfIn PDF document text
    • http://www.valenciamaids.com/userfiles/files/where-to-get-free-robux_GM431946152.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
font_00_sfnt_off000033bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x33BD 22480 bytes
SHA-256: 3d6cef9e2f511bf1db609e8c99b962bba55e7963137f8c1d3dcbaf6a7aa5ec48
font_01_sfnt_off000065e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65E9 19080 bytes
SHA-256: 3cbc293ef628fb4705ac7f66d217295b20ff5e8f6a59663341d656d2499a7cc6

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