Malicious PDF — malware analysis report

Static analysis result for SHA-256 fa3aaabf7bc75756…

MALICIOUS

PDF

59.2 KB Created: 2020-08-07 13:56:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 71cbbb6030c99ecfb8e6fb6b26c96e2d SHA-1: 6bffb604ecc9728c943b3cd9872ecd83ad958f91 SHA-256: fa3aaabf7bc7575662152e1abb8934e8d95e745d01143b91ce05be06af228b80
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.com/pify?keyword=simple+biodata+form+pdf+free+download In PDF document text
    • http://busomel.headtotinytoes.com/uploads/1/3/0/9/130969754/3108437.pdfIn PDF document text
    • http://files.maniacgirls.com/uploads/1/3/1/6/131606069/80abde3c8c.pdfIn PDF document text
    • http://files.edmondbahai.org/uploads/1/3/1/1/131164358/rukivunufuzi.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/1/0430/3811/3955/files/34697444189.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3984/2719/files/phenolic_labels.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8031/8118/files/parliamentary_system_of_uk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8901/1612/files/rekey_schlage_deadbolt.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7155/3189/files/guronumov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/sovir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/7597/5830/files/16881629224.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/50833930904.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/48695811849.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3749/1354/files/vadelisizolozerug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2773/2379/files/java_8_documentation.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4999/2860/files/23430558931.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2315/4847/files/javascript_tutorial_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0568/9504/files/nemolarafowifutug.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

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_off00009ffe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9FFE 2828 bytes
SHA-256: a17885b4fd577e0298a64705d5055d2ac7c2363fd7008e9cf236b3df412a17d8
font_01_sfnt_off0000a9f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA9F8 5344 bytes
SHA-256: 2e6d33adbfe60621ddfdd8d81ccb39b7c517ff46af5c65a00612beb9a11ac21d
font_02_sfnt_off0000bc19.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBC19 10204 bytes
SHA-256: 4bd79f4ffacad3ffe9f2dbe04d8ae7bb7cd9835bb0b7126c47d19225b22fddb5

Open this report in the interactive analyzer, or submit your own file for analysis.