Malicious PDF — malware analysis report

Static analysis result for SHA-256 0fbe0b8345a0d0b3…

MALICIOUS

PDF

47.7 KB Created: 2021-06-09 12:43:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: a20fa0066a7a94099ee360bf779a62a3 SHA-1: aacf3612747d33f9389684adbf433e4b56e1e78b SHA-256: 0fbe0b8345a0d0b302709ac1a1f4f995d62187fff3f19083e5390ecff69b0759
102 Risk Score

Malware Insights

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

The PDF document contains numerous embedded URLs and a document body that promotes downloading hacks or free items for games like Roblox and Minecraft. 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 flagged this PDF as malicious with high confidence. The primary attack pattern involves luring users to external sites that likely host malware or further phishing attempts.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9769

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.tw/app/431946152/hack-para-descargar-roblox-game-hack PDF link annotation
    • http://demenagementlandry.com/images/free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • http://demenagementlandry.com/images/vip-roblox-hack_GM431946152.pdfIn PDF document text
    • http://demenagementlandry.com/images/minecraft-pe-free_GM479516143.pdfIn PDF document text
    • http://demenagementlandry.com/images/coin-master-free-daily-spins_GM406889139.pdfIn PDF document text
    • http://demenagementlandry.com/images/how-do-u-get-free-random-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://demenagementlandry.com/images/minecraft-pocket-edition-free-download_GM479516143.pdfIn PDF document text
    • http://demenagementlandry.com/images/free-tiktok-accounts-with-followers_GM835599320.pdfIn PDF document text
    • http://demenagementlandry.com/images/free-spins-coin-master-links_GM406889139.pdfIn PDF document text
    • http://demenagementlandry.com/images/free-spins-coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://demenagementlandry.com/images/free-robux-with-no-verification_GM431946152.pdfIn PDF document text
    • http://demenagementlandry.com/images/free-robux-no-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://demenagementlandry.com/images/op-rewards-robux_GM431946152.pdfIn PDF document text
    • http://demenagementlandry.com/images/how-to-get-minecraft-pocket-edition-for-free_GM479516143.pdfIn PDF document text
    • http://demenagementlandry.com/images/free-cracked-minecraft-server-hosting_GM479516143.pdfIn PDF document text
    • http://demenagementlandry.com/images/gameoffice-net-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://demenagementlandry.com/images/free-minecraft-addons_GM479516143.pdfIn PDF document text
    • http://demenagementlandry.com/images/free-roblox-cards-pin-number_GM431946152.pdfIn PDF document text
    • http://demenagementlandry.com/images/coin-master-free-spin-whatsapp-group_GM406889139.pdfIn PDF document text
    • http://demenagementlandry.com/images/how-to-hack-roblox-jailbreak_GM431946152.pdfIn PDF document text
    • http://demenagementlandry.com/images/how-to-get-free-robux-without-any-verification_GM431946152.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000518b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x518B 24616 bytes
SHA-256: 21cc957688bd8efa38c29f5f6c221aafde0c7cef57b4c9c456731d752bdb6f13
font_01_sfnt_off000088f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x88F0 3992 bytes
SHA-256: 43e72e756231cfd354bd65c2ed3b09ad4eff56ad11e7f155ed2920e6bb7860dd
font_02_sfnt_off00009617.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9617 18792 bytes
SHA-256: 4961bcf34d15b78eb597372d97a472b548da692dd1a83a4f1a1e533264155198

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