Malicious PDF — malware analysis report

Static analysis result for SHA-256 d6dfcfc08be3f820…

MALICIOUS

PDF

44.3 KB Created: 2020-10-06 12:15:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: 953ffdfe861de1c9a2f3acc9994dd7e3 SHA-1: 1c5b4177e2d1528b44f7a22428259d94e564c1b9 SHA-256: d6dfcfc08be3f820427e5da5a64e2eb4bcf78c6feef958204b944f940fffa000
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=ffxi+cooking+guide+1-100 In PDF document text
    • http://pedomefi.redlineinstallers.com/uploads/1/3/2/6/132680981/jojufunijovowewobu.pdfIn PDF document text
    • http://pibunozow.12346comic.com/uploads/1/3/1/4/131437709/11492d8ccdcf.pdfIn PDF document text
    • http://gokizosos.spencerkezhouxiao.com/uploads/1/3/0/9/130969742/xademijit_potuwefu_dojitafina_lepakafanirej.pdfIn PDF document text
    • https://site-1037202.mozfiles.com/files/1037202/46363133186.pdfIn PDF document text
    • https://site-1038938.mozfiles.com/files/1038938/62757886566.pdfIn PDF document text
    • https://site-1037889.mozfiles.com/files/1037889/29372186038.pdfIn PDF document text
    • https://site-1036627.mozfiles.com/files/1036627/36790153395.pdfIn PDF document text
    • http://files.theconsciousbuilder.com/uploads/1/3/0/9/130969850/d2bee3587.pdfIn PDF document text
    • http://files.johnkilkennypercussion.com/uploads/1/3/1/4/131438324/xaxumoravudus.pdfIn PDF document text
    • http://files.shallowaterathleticboosters.org/uploads/1/3/1/4/131483112/dd3d775216.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/1/0483/2316/6371/files/paguviniwopar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0482/8181/3154/files/cinebarre_boulder_11_louisville_co_usa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6447/5299/files/thou_shalt_not_lie.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0457/3783/6710/files/ms_chicken_maidstone.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0478/9285/6998/files/pitbull_lab_mix_puppies_for_sale.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_off00006ed4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6ED4 4984 bytes
SHA-256: 6ebab388992fc2b4fcf703b59b1cf5dbe2377e11c1b61ef5dda1d6c917204cb0
font_01_sfnt_off00008001.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8001 10772 bytes
SHA-256: a9d9c4cb995e75968a43425ffc5a646b8738fe9217ffd56bb174cd18cdb722cb

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