Malicious PDF — malware analysis report

Static analysis result for SHA-256 f40fa21b0b3b95bb…

MALICIOUS

PDF

51.2 KB Created: 2020-09-17 12:22:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 94c68e234213ea459f1053b0daff23e3 SHA-1: 0f768398868ca3bc243afcc88353072c386c5e5d SHA-256: f40fa21b0b3b95bbc79c58c5d0c662373860a80e3ff7e972cad9efc01e1e9507
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://ttraff.club/wix?keyword=dragon+ball+dokkan+battle+mod+apk+unlimited+dragon+stones In PDF document text
    • http://peses.wandakabeleaston.com/uploads/1/3/0/8/130874339/8969510.pdfIn PDF document text
    • http://files.vikkaszone.com/uploads/1/3/2/6/132682471/753471.pdfIn PDF document text
    • http://muzuwolu.cloudy-shirts.com/uploads/1/3/0/8/130874067/wumadaguwikaleduk.pdfIn PDF document text
    • http://files.monasfamilyemporium.com/uploads/1/3/2/3/132302870/5871365.pdfIn PDF document text
    • http://files.travelsquad.net/uploads/1/3/0/8/130814923/9318670.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8415/2986/files/casio_fx_95ms_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7675/5349/files/37586883943.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2063/8632/files/git_delete_tag_remote.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2496/6044/files/2917845753.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2829/9428/files/tabidagobodojuxax.pdfIn PDF document text
    • https://b4808514-6dd3-41cd-a125-039f28d0f7da.filesusr.com/ugd/685707_e29c7a016eb44fcbbdfa8d0e75042cbc.pdf?index=trueIn PDF document text
    • https://7062b215-8cdc-48e1-91e6-c01f0a67df79.filesusr.com/ugd/221eaa_af7ff0cdc22e4d138ff25eedd97db791.pdf?index=trueIn PDF document text
    • https://0ddc862d-0bc9-4451-880b-3fabe92171e8.filesusr.com/ugd/234f58_6fa8b04dc9884b0db5bb804bcfe78f74.pdf?index=trueIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5573/5203/files/7874938430.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0463/1009/7053/files/bagan_keyboard_unicode_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0467/5954/2947/files/resto_druid_classic_wow_leveling_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8329/2060/files/wukobamitatinovubuw.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
🗂 Part of campaign: monasfamilyemporium.com 7 samples

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_off000072e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72E0 5484 bytes
SHA-256: 2ef5f6d172b112dfadb6184939e72f981c82f7abff932100436a6f9de15f41a6
font_01_sfnt_off00008570.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8570 10296 bytes
SHA-256: 71eb17720a3e33fdcb18ca386954122f176d2e0a95caa95c7fc605aa991e2176
font_02_sfnt_off0000a8b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA8B6 16444 bytes
SHA-256: a885b2778e7e2523dbc88214f506a7c917f1eda58456cd8cb08d8dfdc5251fb6

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