Malicious PDF — malware analysis report

Static analysis result for SHA-256 461f7a1a4246e7c2…

MALICIOUS

PDF

37.3 KB Created: 2020-10-08 12:01:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: 2e54e3dfb451ecf7a88059b236e01e4b SHA-1: 62a15efa6b98e67aab83f7b6b488a4f00633e566 SHA-256: 461f7a1a4246e7c2d9dc0ec3d309a1b966cf29023fc8fc446e6c6e6cab6f3bd5
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.link/pify?keyword=2008+suzuki+c50+service+manual+pdf In PDF document text
    • http://files.mylittleretreatspa.com/uploads/1/3/0/7/130738915/wobevefurilodaw.pdfIn PDF document text
    • http://files.aplcnj.org/uploads/1/3/2/3/132303282/lufos.pdfIn PDF document text
    • http://files.manchestersummerplayground.com/uploads/1/3/1/6/131636833/9483615.pdfIn PDF document text
    • http://files.thestlouisguide.com/uploads/1/3/0/8/130814066/fb9b5359b66.pdfIn PDF document text
    • http://xolir.rent2ownshop.com/uploads/1/3/0/9/130969140/xesududop.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/4b807f8c-aa88-4952-a4b1-ffde11f8f5e1/pudabu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/67ca1310-e34f-44d9-8867-c328bc338168/69420028268.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f4188f7a-dfa5-4325-a46f-e6fac5c5a8fa/16244309700.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8e96ee13-a926-46f3-bf8f-d4b5d47b094b/15222497224.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7c0f3656-7c93-4ceb-8026-6aabfdcb4512/fidazavikexemut.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/28a587ff-0b36-496a-870b-bf65fe3393b7/56447889457.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a51fc993-ada2-462e-819f-4dbad238074b/linufapetubelunifufijeme.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d386654f-e38e-416b-9a97-76def2f8d6f0/81409369803.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/65c66ae2-fd80-44c6-93b4-80db1c58f563/36453374118.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0542ebb4-f38d-4912-8354-ac6c177c40a3/wunefaxad.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 4

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_off0000518f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x518F 5972 bytes
SHA-256: b5813cf5e866cd78ad50103f16cb06fc8baab686d396bac1ae4195d6f6da2d92
font_01_sfnt_off000065e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65E9 10096 bytes
SHA-256: 51d30601c516114c99ee30cde290f70080961f6bd3a5c27688f705d7fb492c6c

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