Malicious PDF — malware analysis report

Static analysis result for SHA-256 2dceb22a7542574b…

MALICIOUS

PDF

56.9 KB Created: 2020-09-30 02:24:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: 6280b99172ca73c0c91554145e558df3 SHA-1: e5637ee2ac49cf90a3a77e2e6e0356b0e7d55666 SHA-256: 2dceb22a7542574b0e93839b83c39253b89245e474a0c0352da692d500f7ea9f
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/strik?keyword=ankylosing+spondylitis+pdf+download In PDF document text
    • http://files.tiloscleanwater.com/uploads/1/3/2/6/132681556/mabazo.pdfIn PDF document text
    • http://files.emariephotog.com/uploads/1/3/1/4/131406662/1967920.pdfIn PDF document text
    • http://files.frecuenciarockradio.com/uploads/1/3/1/8/131856706/a6fbc894940.pdfIn PDF document text
    • http://najobev.keniaduzit.com/uploads/1/3/0/7/130739476/telovupabivowij.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/1/0437/3485/9927/files/air_breathing_jet_engine.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9277/8916/files/10666348421.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9419/6902/files/acetanilide_recrystallization_lab_report.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0588/5090/files/fanukexafugakiluni.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0464/8573/3528/files/comcast_cable_tv_guide_portland_oregon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5193/2056/files/first_day_of_school_icebreakers_for_high_school_students.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/3747/2421/files/67724688691.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5975/7734/files/salon_fundamentals_cosmetology.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0482/3174/3648/files/rotmg_leveling_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/0570/1284/files/animals_name_with_images.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0795/9452/files/greensleeves_lyrics_peter_hollens.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2585/7703/files/69196005279.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_off0000956b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x956B 5360 bytes
SHA-256: cfea53b83225a8510f37e90101f12cf99c103abfad980c32a5da21526e29a037
font_01_sfnt_off0000a7dd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA7DD 1936 bytes
SHA-256: a8ba320a0ac8a73a5a8cc2c47ba30bd151ec5f51af4d5ac0b9daf85eaa8f1301
font_02_sfnt_off0000b122.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB122 10764 bytes
SHA-256: 05aa4df2404fb44d67077b2bcd9234f11a1006cb59fd3d2901da30f0b298a6c6

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