Malicious PDF — malware analysis report

Static analysis result for SHA-256 96912abeffa22660…

MALICIOUS

PDF

33.7 KB Created: 2021-07-03 16:52:01 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: a9fdfb4ef3bebdb60f2992f25a7ddf86 SHA-1: c9477b7f9e28b478e36a9768a4e0a86536495698 SHA-256: 96912abeffa2266078b78c1562aceb746ee8cdbfabb032e0400f0519f2bbc6ea
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document contains numerous links to external websites, many of which are hosted on domains like 'gazelletr.com' and 'netcdn.tw'. The document body and extracted URLs suggest a lure for users seeking game hacks and cheats, specifically for Roblox and Coin Master. The presence of a large number of external links, many pointing to PDF files with SEO-like titles, indicates a link farm designed to drive traffic to potentially malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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/431946152/roblox-hack-me-game-hack PDF link annotation
    • http://gazelletr.com/userfiles/files/free-spins-promo-code-for-coin-master_GM406889139.pdfIn PDF document text
    • http://gazelletr.com/userfiles/files/is-there-a-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://gazelletr.com/userfiles/files/how-to-get-free-robux-images_GM431946152.pdfIn PDF document text
    • http://gazelletr.com/userfiles/files/coin-master-hack-pro-gamers_GM406889139.pdfIn PDF document text
    • http://gazelletr.com/userfiles/files/archery-master-3d-unlimited-coins-hack_GM406889139.pdfIn PDF document text
    • http://gazelletr.com/userfiles/files/free-minecraft-server-hosting_GM479516143.pdfIn PDF document text
    • http://gazelletr.com/userfiles/files/how-to-get-free-faces-on-roblox-easy_GM431946152.pdfIn PDF document text
    • http://gazelletr.com/userfiles/files/how-to-get-free-ranks-in-roblox-groups_GM431946152.pdfIn PDF document text
    • http://gazelletr.com/userfiles/files/roblox-trolling-hack_GM431946152.pdfIn PDF document text
    • http://gazelletr.com/userfiles/files/free-robux-that-actually-works_GM431946152.pdfIn PDF document text
    • http://gazelletr.com/userfiles/files/robux-hacks-that-work-2021_GM431946152.pdfIn PDF document text
    • http://gazelletr.com/userfiles/files/robux-app_GM431946152.pdfIn PDF document text
    • http://gazelletr.com/userfiles/files/coin-master-promo-code-2021_GM406889139.pdfIn PDF document text
    • http://gazelletr.com/userfiles/files/robux-hack-2021-working_GM431946152.pdfIn PDF document text
    • http://gazelletr.com/userfiles/files/free-modded-minecraft-server-hosting_GM479516143.pdfIn PDF document text
    • http://gazelletr.com/userfiles/files/free-minecraft-codes_GM479516143.pdfIn PDF document text
    • http://gazelletr.com/userfiles/files/roblox-free-robux-glitch_GM431946152.pdfIn PDF document text
    • http://gazelletr.com/userfiles/files/free-spin-link-for-coin-master-haktuts_GM406889139.pdfIn PDF document text
    • http://gazelletr.com/userfiles/files/how-to-get-free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • http://gazelletr.com/userfiles/files/free-roblox-outfits-2021_GM431946152.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_off00002cf4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2CF4 22544 bytes
SHA-256: 1c6b3aa8b677dd6cfcc6d4ffa3ad8739e2e1a3768663fab2571ce0569eecf677
font_01_sfnt_off00005f19.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F19 18852 bytes
SHA-256: ae5bbd1016d3eca5969145279625dbf0af4bdaae54505d1f649a6545bf5fde29

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