Malicious PDF — malware analysis report

Static analysis result for SHA-256 45ce9c5b6a45e85d…

MALICIOUS

PDF

41.2 KB Created: 2021-05-19 01:06:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 3153a4c557025ee5efd39f8e7311cd40 SHA-1: 1b7879b31cb5813850da0e7bb7408fda88b9b23b SHA-256: 45ce9c5b6a45e85d42b02a5644ccd2e5c255a35edae6a78d2c6706298ee3494f
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains a large number of external links, many of which are SEO-optimized PDF files, suggesting a link farm or content-loading tactic. The presence of a 'download' button lure further supports the intent to trick users into navigating to these external resources. While no scripts were explicitly extracted, the PDF structure and extensive external linking are indicative of a malicious workflow designed to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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/1094591345/pokemon-go-free-999-game-hack PDF link annotation
    • http://newbeginningsranch.net/images/free-coin-master-spin-generator_GM406889139.pdfIn PDF document text
    • http://newbeginningsranch.net/images/how-to-get-more-robux-for-free_GM431946152.pdfIn PDF document text
    • http://newbeginningsranch.net/images/2021-roblox_GM431946152.pdfIn PDF document text
    • http://newbeginningsranch.net/images/free-robux-with-no-verification_GM431946152.pdfIn PDF document text
    • http://newbeginningsranch.net/images/daily-free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://newbeginningsranch.net/images/rbx-claim_GM431946152.pdfIn PDF document text
    • http://newbeginningsranch.net/images/free-coins-and-spins-for-coin-master-game_GM406889139.pdfIn PDF document text
    • http://newbeginningsranch.net/images/free-printable-roblox-images_GM431946152.pdfIn PDF document text
    • http://newbeginningsranch.net/images/roblox-free-robux-hack_GM431946152.pdfIn PDF document text
    • http://newbeginningsranch.net/images/how-do-i-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://newbeginningsranch.net/images/how-to-get-free-unlimited-robux_GM431946152.pdfIn PDF document text
    • http://newbeginningsranch.net/images/spins-gratis-coin-master-hoy_GM406889139.pdfIn PDF document text
    • http://newbeginningsranch.net/images/how-to-get-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • http://newbeginningsranch.net/images/dailyrobux_GM431946152.pdfIn PDF document text
    • http://newbeginningsranch.net/images/free-robux-survey_GM431946152.pdfIn PDF document text
    • http://newbeginningsranch.net/images/coin-master-free-coins-link_GM406889139.pdfIn PDF document text
    • http://newbeginningsranch.net/images/how-many-free-spin-links-is-there-for-coin-master_GM406889139.pdfIn PDF document text
    • http://newbeginningsranch.net/images/coin-master-free_GM406889139.pdfIn PDF document text
    • http://newbeginningsranch.net/images/hack-coin-master-mod-apk_GM406889139.pdfIn PDF document text
    • http://newbeginningsranch.net/images/how-to-get-free-robux-for-real_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
stream_003_off0000484f.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x484F 24272 bytes
SHA-256: 0d56098dc56c51ccbafdbbb7019fafac6d6fde2b80516946d875d95c0fd6c460
font_01_sfnt_off00007fcd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7FCD 18004 bytes
SHA-256: 8be2f25a87b330095962e2e811257aa0930e3cdba91630dc6c3e2cd6e069f725

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