Malicious PDF — malware analysis report

Static analysis result for SHA-256 5fc167d0dd62b612…

MALICIOUS

PDF

44.7 KB Created: 2020-08-16 21:01:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2bf1cca391d863ab351dd661deddbe92 SHA-1: 42764acc4179b557c38bd91595ac6d683cf6631b SHA-256: 5fc167d0dd62b61225c4d30154575f55368f6443a8bd58851ed16c102f5ebe29
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a link that redirects to a known malicious URL, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. This URL is presented as a solution to an 'Android 10 not charging' problem, suggesting a phishing or scam attempt. The PDF also contains a link farm pointing to multiple PDFs hosted on Shopify, with one identified as a potential redirector.

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=android+10+not+charging In PDF document text
    • http://files.unityofpalmyra.org/uploads/1/3/0/7/130775827/0d2098eedc2.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/1/0434/5469/3541/files/watojoxeruxoluvarixeb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9181/2771/files/alimentacion_saludable_introduccion.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8977/2187/files/ramebajasapenerigogu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1778/9863/files/74489180344.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8547/7541/files/fujumivukufixezagipitinop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8570/1019/files/bpsc_answer_key_with_question.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7449/4369/files/the_duchess_of_malfi_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6844/8152/files/vumomuloxolo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4156/1503/files/sitanukozorijudipemumolot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9370/4350/files/31837815409.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8423/4398/files/pittsburgh_tv_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9993/9235/files/nepagupodijedebeto.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_off000071b0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x71B0 5176 bytes
SHA-256: 9269c09359ec5a60f6aa3a5adfb76077346de77ee6a539309effed5b715a1a2d
font_01_sfnt_off00008340.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8340 10360 bytes
SHA-256: f33c597abb4db02d3acec9008b119092848a4c8a4b77a70027316d1959e324de

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