Malicious PDF — malware analysis report

Static analysis result for SHA-256 822737a06df6c271…

MALICIOUS

PDF

33.0 KB Created: 2021-07-05 10:01:42 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 58e458553fe736790e67648a856ee9bd SHA-1: 9d3dabbd301a77f74c2c6687053d59abb0300c95 SHA-256: 822737a06df6c271de3ca7b12cdbdf5819ba3f8b028cb746c802d093d70e42bc
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure related to game hacks and free generators, directing users to a malicious URL. The ML classifier strongly flagged this PDF as malicious. The embedded URL likely leads to a second-stage download or phishing page, typical of a downloader or phishing campaign.

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/479516143/minecraft-pe-hack-client-game-hack PDF link annotation
    • https://sensorcamera-tw.com/upload/files/tiktok-free-to-download_GM835599320.pdfIn PDF document text
    • https://sensorcamera-tw.com/upload/files/roblox-jailbreak-speedhack-cheat-engine_GM431946152.pdfIn PDF document text
    • https://sensorcamera-tw.com/upload/files/pubg-uc-low-price_GM1330123889.pdfIn PDF document text
    • https://sensorcamera-tw.com/upload/files/get-free-gold-cards-in-coin-master_GM406889139.pdfIn PDF document text
    • https://sensorcamera-tw.com/upload/files/free-minecraft-website_GM479516143.pdfIn PDF document text
    • https://sensorcamera-tw.com/upload/files/theme-park-tycoon-2-roblox-hack_GM431946152.pdfIn PDF document text
    • https://sensorcamera-tw.com/upload/files/roblox-prison-life-v2-0-cheats_GM431946152.pdfIn PDF document text
    • https://sensorcamera-tw.com/upload/files/roblox-free-robux-codes_GM431946152.pdfIn PDF document text
    • https://sensorcamera-tw.com/upload/files/how-to-hack-roblox-on-cheat-engine_GM431946152.pdfIn PDF document text
    • https://sensorcamera-tw.com/upload/files/coin-master-hack-activegamer_GM406889139.pdfIn PDF document text
    • https://sensorcamera-tw.com/upload/files/free-robux-gen-no-human-verification_GM431946152.pdfIn PDF document text
    • https://sensorcamera-tw.com/upload/files/free-minecraft-skin-maker_GM479516143.pdfIn PDF document text
    • https://sensorcamera-tw.com/upload/files/roblox-hack-tool_GM431946152.pdfIn PDF document text
    • https://sensorcamera-tw.com/upload/files/microsoft-bing-free-robux_GM431946152.pdfIn PDF document text
    • https://sensorcamera-tw.com/upload/files/ways-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://sensorcamera-tw.com/upload/files/how-to-get-minecraft-for-free-on-mac_GM479516143.pdfIn PDF document text
    • https://sensorcamera-tw.com/upload/files/is-minecraft-vr-free_GM479516143.pdfIn PDF document text
    • https://sensorcamera-tw.com/upload/files/free-roblox-promo-codes-for-robux_GM431946152.pdfIn PDF document text
    • https://sensorcamera-tw.com/upload/files/how-to-hack-roblox-to-get-robux_GM431946152.pdfIn PDF document text
    • https://sensorcamera-tw.com/upload/files/coin-master-free-spins-23-march-2021_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
font_00_sfnt_off00002edc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EDC 21860 bytes
SHA-256: 2de90dfaef18cad4d83a66676a97023a5851aea3803160788f7047b5d95b1a45
font_01_sfnt_off00005e5d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E5D 18252 bytes
SHA-256: 122aa68ffc89b9c803021f6a0620f6a9c346e7f6f316835da50b547eae956915

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