Malicious PDF — malware analysis report

Static analysis result for SHA-256 d414faa21e7b9c08…

MALICIOUS

PDF

35.3 KB Created: 2021-07-02 05:40:42 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: a17f10df13711b940fa7184c64e1c75e SHA-1: 5c8d0b0ada6648f6df3f7df279931ae9ebb7f0fb SHA-256: d414faa21e7b9c0848076b81c7be546346183f586c382f3a87113b1c6c3a37fd
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous links to external websites, many of which are hosted on 'atmos-service.com' and advertise game hacks. The heuristic 'PDF_SEO_LINK_FARM' indicates a large number of such links, suggesting a malicious intent to redirect users to potentially harmful content. The ML classifier also strongly flagged this PDF as malicious.

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.co/app/431946152/hack-roblox-2021-game-hack PDF link annotation
    • http://atmos-service.com/images/noob-vs-pro-vs-hacker-vs-god-minecraft_GM479516143.pdfIn PDF document text
    • http://atmos-service.com/images/robux-generator-hack-exe_GM431946152.pdfIn PDF document text
    • http://atmos-service.com/images/free-robux-hack-us_GM431946152.pdfIn PDF document text
    • http://atmos-service.com/images/how-do-i-earn-robux_GM431946152.pdfIn PDF document text
    • http://atmos-service.com/images/how-to-get-free-robux-promo-codes_GM431946152.pdfIn PDF document text
    • http://atmos-service.com/images/how-can-i-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://atmos-service.com/images/how-to-get-free-robux-on-phone_GM431946152.pdfIn PDF document text
    • http://atmos-service.com/images/free-roblox-hair-to-wear_GM431946152.pdfIn PDF document text
    • http://atmos-service.com/images/how-to-hack-int-a-friends-roblox-account_GM431946152.pdfIn PDF document text
    • http://atmos-service.com/images/free-robux-websites-that-work_GM431946152.pdfIn PDF document text
    • http://atmos-service.com/images/ultimate-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://atmos-service.com/images/how-to-go-into-somenes-roblox-account-hack_GM431946152.pdfIn PDF document text
    • http://atmos-service.com/images/best-roblox-hacks-for-unfiltered-games_GM431946152.pdfIn PDF document text
    • http://atmos-service.com/images/free-robux-human-verification_GM431946152.pdfIn PDF document text
    • http://atmos-service.com/images/minecraft-hack-client-18-9_GM479516143.pdfIn PDF document text
    • http://atmos-service.com/images/free-roblox-followers_GM431946152.pdfIn PDF document text
    • http://atmos-service.com/images/how-to-hack-eviction-notice-roblox_GM431946152.pdfIn PDF document text
    • http://atmos-service.com/images/coin-master-free-spins-hack-without-human-verification_GM406889139.pdfIn PDF document text
    • http://atmos-service.com/images/free-robux-generator-unlimited-robux-and-tix_GM431946152.pdfIn PDF document text
    • http://atmos-service.com/images/free-robux-today-generator_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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003341.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3341 22348 bytes
SHA-256: 8998e2afc114f54f84ad68d059e3743b65485fed724e56d77a5cf02d7156b8fc
font_01_sfnt_off000064c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64C2 19056 bytes
SHA-256: 7af285f97e3dec95b647fc809784b86b997e27abb9e933d99ece8fc5688b9abe

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