Malicious PDF — malware analysis report

Static analysis result for SHA-256 2948050ed7eb60a1…

MALICIOUS

PDF

40.6 KB Created: 2020-10-03 06:45:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: 913ed3eba001b4423cb60abc30b9c656 SHA-1: 5b065a8064b3c9f16288b494e2e36f9a3135e88c SHA-256: 2948050ed7eb60a1c0fcc2d5df62340f08e075babf7b252484a6053af8788f53
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://ggtraff.ru/pify?keyword=gillian+flynn+pdf In PDF document text
    • http://files.rmdobermans.ca/uploads/1/3/1/0/131070523/tajibewusekifaxa.pdfIn PDF document text
    • http://files.m2consultantsinc.com/uploads/1/3/0/7/130775905/36e5e1e9fcabb1.pdfIn PDF document text
    • http://files.plowmancompetition.org/uploads/1/3/1/1/131164519/5782361.pdfIn PDF document text
    • http://files.lkonsite.com/uploads/1/3/1/8/131872079/sulapemexidubelon.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/51a89747-c75e-463e-b2e9-8455c8a351c7/10593060276.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4ea54dba-9e6b-4dba-906b-a2ae0361e2f8/54413787279.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2e922355-75b7-48a9-8992-464f153b5a92/66591081782.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/45cba253-6203-4df4-9e71-9da04c991e02/ruvunexamakefoda.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/50e034fe-2c45-4198-8036-02546aecb0ad/92225184251.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0497/4038/2362/files/free_skin_rotation_lol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0893/3540/files/3826046199.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/3136/6298/files/5431797648.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0480/4758/7492/files/american_vision_chapter_13.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0492/4512/6812/files/seluwixeja.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/3516/7400/files/calendar_worksheets_grade_3.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4628/8025/files/st_vincent_de_paul_furniture_auburn_wa.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000062a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62A4 4896 bytes
SHA-256: ddf3b71e909d109dec12dfcb4287d66997ee57831575c99313ad94251faece08
font_01_sfnt_off00007377.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7377 10036 bytes
SHA-256: 80469c6c0da5c0b5bc11492b1d0625827af774663723d5b4c2c1c574866f2c55

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