Malicious PDF — malware analysis report

Static analysis result for SHA-256 8abf4cbde0cfde36…

MALICIOUS

PDF

59.2 KB Created: 2020-07-30 15:31:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3cf88fdbaea63ae8d5a50a73ce9e7a0f SHA-1: b8ed3fc84e3050ea8592a46c9020de0ffb3e36b5 SHA-256: 8abf4cbde0cfde36cd93870767319f16b3f2b3a2493bc83fd4e53f1468f40bb9
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The PDF contains numerous links designed to appear as a link farm for PDF documents, with a primary redirector pointing to malicious infrastructure. The 'black panther comic book pdf' lure is a common tactic for phishing and malware distribution. The ML classifier strongly indicates maliciousness, and the embedded links suggest an attempt to redirect users to a malicious site for further exploitation.

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.com/pify?keyword=black+panther+comic+book+pdf In PDF document text
    • http://files.uvoholicsanonymous.com/uploads/1/3/1/3/131383648/refejuperi-ziviw.pdfIn PDF document text
    • http://files.blackhillsnutrition.com/uploads/1/3/0/9/130969774/f16ba94f66233d.pdfIn PDF document text
    • http://files.westsideyouthministry.com/uploads/1/3/1/6/131637169/9a6d19c6a2d6.pdfIn PDF document text
    • http://files.jaidetimmgarcia.com/uploads/1/3/0/8/130814085/9989934.pdfIn PDF document text
    • http://files.americancollegegenerosity.com/uploads/1/3/0/7/130775707/wimorumax.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/1/0428/9835/8432/files/20424522606.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/13578549785.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1384/7714/files/53081760763.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8834/6262/files/jovudelizokoxav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5997/9174/files/64440715316.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1420/7134/files/77333469261.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2962/4982/files/dijefiwuredise.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8717/5588/files/82191219458.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8964/1116/files/gexajifovufudebulakapowon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0432/9125/files/49013339561.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/7491/8302/files/xolukokufaminapevirezix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8691/3439/files/13585149486.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9930/7673/files/39069820895.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_off0000aa2d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAA2D 5256 bytes
SHA-256: 1bf87da182b3e847ddaf787c240465add1c213af0065febac7994d7e9da27a1e
font_01_sfnt_off0000bbcc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBBCC 10328 bytes
SHA-256: 8fac9ab7799ac1dbb4fe201353356f3df19fce5f523712ead6c96cf448825453

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