Malicious PDF — malware analysis report

Static analysis result for SHA-256 9ec05d995c30a19c…

MALICIOUS

PDF

34.6 KB Created: 2021-07-04 00:33:25 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: d8c02db60a03197595e3bbb26ab77a33 SHA-1: 3ef4e4134fcd91cf690304eda8b5642f7d1c8a91 SHA-256: 9ec05d995c30a19cb38b523add7c42a30c304b07f6fb32984b1f3307d081c049
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-free-coins-and-spins-hack-game-hack PDF link annotation
    • http://aeridefense.com/image/data/files/account-hacked-on-roblox_GM431946152.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/free-spins-on-coin-master-game_GM406889139.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/rbx-website_GM431946152.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/can-u-get-free-robux_GM431946152.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/coin-master-daily-free-spins-link_GM406889139.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/free-roblox-hack-youtube_GM431946152.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/free-ps4-games-like-roblox_GM431946152.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/real-way-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/free-robux-generator-for-roblox-2021_GM431946152.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/how-to-get-minecraft-java-for-free_GM479516143.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/how-to-get-robux-fast-no-hack-2021_GM431946152.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/hack-a-game_GM431946152.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/roblox-mania-get-free-robux_GM431946152.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/how-to-get-free-roebucks-in-roblox_GM431946152.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/tiktok-likes-for-free_GM835599320.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/weight-champion-cheat-codee-on-roblox_GM431946152.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/roblox-robux-hack-generator_GM431946152.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/free-spin-link-coin-master_GM406889139.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/how-to-earn-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/how-to-download-wurst_GM479516143.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_off00003132.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3132 22720 bytes
SHA-256: 7b463e9d49e511a8915f68aacb6396f07d63e8371269024fc4288db7d8dcf915
font_01_sfnt_off000063f5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63F5 18520 bytes
SHA-256: 29c1b28c0a710d6b876e8a0d8218f7449662a67bbf5932a86ad74a08bedf9ae4

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