Malicious PDF — malware analysis report

Static analysis result for SHA-256 0ab9f9b1443a7749…

MALICIOUS

PDF

44.8 KB Created: 2021-05-12 04:33:03 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: d012d823945c117f3e89a3e588edebda SHA-1: 83d960e7b9a539c162a724d44c86328de272e491 SHA-256: 0ab9f9b1443a77499c6c285d4670ba9ce207690e1ad97d4491bf59ac50c57fb2
102 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, many of which are presented as download opportunities for game-related cheats and hacks. The heuristic 'PDF_SEO_LINK_FARM' indicates a large number of external links, suggesting a link farm designed to attract users. The ML classifier also strongly flagged this PDF as malicious, reinforcing the suspicious nature of the content and its likely intent to redirect users to potentially harmful sites.

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 https://netcdn.xyz/app/431946152/roblox36.com-free-robux-game-hack PDF link annotation
    • https://elearning.man3hss.sch.id/__statics/gudangsoal/files/free-spins-on-coin-master-game_GM406889139.pdfIn PDF document text
    • https://elearning.man3hss.sch.id/__statics/gudangsoal/files/minecraft-pocket-edition-mods-for-free_GM479516143.pdfIn PDF document text
    • https://elearning.man3hss.sch.id/__statics/gudangsoal/files/roblox-executor-free-download_GM431946152.pdfIn PDF document text
    • https://elearning.man3hss.sch.id/__statics/gudangsoal/files/how-to-make-a-roblox-group-for-free_GM431946152.pdfIn PDF document text
    • https://elearning.man3hss.sch.id/__statics/gudangsoal/files/coin-master-hack-using-cheat-engine_GM406889139.pdfIn PDF document text
    • https://elearning.man3hss.sch.id/__statics/gudangsoal/files/coinmasterfreespins_GM406889139.pdfIn PDF document text
    • https://elearning.man3hss.sch.id/__statics/gudangsoal/files/coin-master-hack-ios-jailbreak_GM406889139.pdfIn PDF document text
    • https://elearning.man3hss.sch.id/__statics/gudangsoal/files/minecraft-for-macbook-free_GM479516143.pdfIn PDF document text
    • https://elearning.man3hss.sch.id/__statics/gudangsoal/files/extra-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.man3hss.sch.id/__statics/gudangsoal/files/how-to-hack-someones-minecraft-account_GM479516143.pdfIn PDF document text
    • https://elearning.man3hss.sch.id/__statics/gudangsoal/files/coin-master-free-daily-spins_GM406889139.pdfIn PDF document text
    • https://elearning.man3hss.sch.id/__statics/gudangsoal/files/coin-master-free-spins-cheat_GM406889139.pdfIn PDF document text
    • https://elearning.man3hss.sch.id/__statics/gudangsoal/files/best-minecraft-hacks_GM479516143.pdfIn PDF document text
    • https://elearning.man3hss.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-as-a-kid_GM431946152.pdfIn PDF document text
    • https://elearning.man3hss.sch.id/__statics/gudangsoal/files/free-coin-master-spin-daily-link_GM406889139.pdfIn PDF document text
    • https://elearning.man3hss.sch.id/__statics/gudangsoal/files/free-25-spins-coin-master-links_GM406889139.pdfIn PDF document text
    • https://elearning.man3hss.sch.id/__statics/gudangsoal/files/how-to-hack-someone-on-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.man3hss.sch.id/__statics/gudangsoal/files/coin-master-hack-facebook_GM406889139.pdfIn PDF document text
    • https://elearning.man3hss.sch.id/__statics/gudangsoal/files/static-moonactive-net-rewards_GM406889139.pdfIn PDF document text
    • https://elearning.man3hss.sch.id/__statics/gudangsoal/files/minecraft-hacks-18-9_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_003_off00004d3f.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4D3F 27468 bytes
SHA-256: 65d20b84587037611daff0ca6aab036d9d3055842cbed98e045074d366e3bf97
font_01_sfnt_off00008b99.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B99 18756 bytes
SHA-256: 75a7293df35b739ae2294dba45007dab7b7658b4df7c6a7e046c10781a1fd260

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