Malicious PDF — malware analysis report

Static analysis result for SHA-256 aeafb5c5a95235a4…

MALICIOUS

PDF

63.0 KB Created: 2020-08-16 19:04:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: e2f94e62a66ed0ec2e1995fef58618cc SHA-1: 2d09a0935c5a61dc52802fbed338f36b78f035ee SHA-256: aeafb5c5a95235a408cbcb51c7ff5595251e83c41063256aea83fb539fa4967b
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.cc/pify?keyword=free+church+flyer+templates+word In PDF document text
    • http://files.4614california.com/uploads/1/3/1/0/131071252/govagafapelota_vobegiro.pdfIn PDF document text
    • http://files.nickhupton.com/uploads/1/3/1/6/131636814/rigini-bunisomaro.pdfIn PDF document text
    • http://files.jimbrantleyrealty.com/uploads/1/3/1/4/131454352/ragewinobijif.pdfIn PDF document text
    • http://gunano.nqnd.org/uploads/1/3/0/7/130776783/kidibirav.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/1/0432/0457/5387/files/femorijakafigafesowepanaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7018/5879/files/larynx_anatomy.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7795/8822/files/xaxixavatovi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3128/8218/files/binomial_distribution_cdf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0655/7345/files/lucerne_switzerland_map.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5943/0047/files/43221761066.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5036/0232/files/nebuvegop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3264/8597/files/calligraphy_practice_sheets_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3888/3485/files/43415701452.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0564/8801/files/88000554362.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3831/8487/files/japexixilovifezupijedap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3110/9540/files/39661776790.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0486/2374/files/xifowuganufejit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4162/7029/files/bebojaxewege.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000a2cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA2CC 5544 bytes
SHA-256: 42191a48322ecd39e7c0f9cd9b1bf92307cc034876d258f8d5f8049ca6dcece9
font_01_sfnt_off0000b59c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB59C 10624 bytes
SHA-256: 50be48f496b8be9c302ef66b8b3366644f3247b805f10e1dd9f5e233e96d7e0a
font_02_sfnt_off0000d9ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD9EE 16036 bytes
SHA-256: 35d3440dae1ebc896564e4e6f70ea95aa3a30a1ac603c7fffbb21b68b8b72e2f

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