Malicious PDF — malware analysis report

Static analysis result for SHA-256 6c0e633b7f35042a…

MALICIOUS

PDF

34.5 KB Created: 2021-06-18 16:33:29 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 8460aac4799b7a5401a1a06dddae623b SHA-1: aadfbe59e0b7490a265ebb6230116f441169890f SHA-256: 6c0e633b7f35042a95d23ecaecc645b2ea7adfec660ff8dc7f0951d7c2af2836
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.co/app/431946152/hack-pia-para-roblox-game-hack PDF link annotation
    • http://apcupschennai.com/images/coin-master-free-attack-hack_GM406889139.pdfIn PDF document text
    • http://apcupschennai.com/images/coin-master-daily-free-spins-link-app-download_GM406889139.pdfIn PDF document text
    • http://apcupschennai.com/images/free-spins-coin-master-links-thursday-november-28-2021_GM406889139.pdfIn PDF document text
    • http://apcupschennai.com/images/free-spins-on-coin-master-without-human-verification_GM406889139.pdfIn PDF document text
    • http://apcupschennai.com/images/coin-master-online-hack_GM406889139.pdfIn PDF document text
    • http://apcupschennai.com/images/hack-free-spin-coin-master_GM406889139.pdfIn PDF document text
    • http://apcupschennai.com/images/roblox-swordburst-online-level-hack_GM431946152.pdfIn PDF document text
    • http://apcupschennai.com/images/hacks-for-minecraft-windows-10_GM479516143.pdfIn PDF document text
    • http://apcupschennai.com/images/download-coin-master-apk-hacked_GM406889139.pdfIn PDF document text
    • http://apcupschennai.com/images/roblox-tix-hack-no-download_GM431946152.pdfIn PDF document text
    • http://apcupschennai.com/images/download-coin-master-hack-tool-v1-9_GM406889139.pdfIn PDF document text
    • http://apcupschennai.com/images/minecraft-noob-vs-pro-vs-hacker-vs-god_GM479516143.pdfIn PDF document text
    • http://apcupschennai.com/images/free-robux-hack-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://apcupschennai.com/images/how-to-get-robux-easy_GM431946152.pdfIn PDF document text
    • http://apcupschennai.com/images/free-codes-for-toys-roblox_GM431946152.pdfIn PDF document text
    • http://apcupschennai.com/images/coin-master-free-spin-link-today-2021_GM406889139.pdfIn PDF document text
    • http://apcupschennai.com/images/coin-master-free-spins-app_GM406889139.pdfIn PDF document text
    • http://apcupschennai.com/images/how-to-get-free-tokens-in-minecraft-ps4_GM479516143.pdfIn PDF document text
    • http://apcupschennai.com/images/how-do-you-get-free-robux_GM431946152.pdfIn PDF document text
    • http://apcupschennai.com/images/coin-master-free-spin-and-coins-links-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_off0000300a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x300A 22784 bytes
SHA-256: e1f6c9b22d6cdee41df547f55ebabda5dc33bb86e6ce55968c2cba33cb2d721b
font_01_sfnt_off000062db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62DB 18744 bytes
SHA-256: a3de16ce8f9a14213d9afbc0d8d152681eadf2e6374042d473a89a7d57e3f0a4

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