Malicious PDF — malware analysis report

Static analysis result for SHA-256 8612522a0585c810…

MALICIOUS

PDF

42.0 KB Created: 2020-08-14 00:44:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 977998c60e9f964b17c18088e007d29f SHA-1: 17356ec63fee7cd1205a52d59e785b898aae06ce SHA-256: 8612522a0585c810fe31ecdc8236d2ee4099d35dc81a99b326d84f74f95fcf2b
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure related to "Insight 3d printing software" and embeds a large number of links. Several of these links point to redirectors known to host malicious content, indicating a phishing or scam attempt. The ML classifier also strongly flagged this PDF as malicious.

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=insight+3d+printing+software In PDF document text
    • http://files.comedyblockpartyent.com/uploads/1/3/0/8/130814065/2d9f84759.pdfIn PDF document text
    • http://files.sarahcookedesigns.com/uploads/1/3/2/6/132680808/e40cd8ffb41aba6.pdfIn PDF document text
    • http://files.jenndesignn.com/uploads/1/3/0/8/130874490/ad61d42e12.pdfIn PDF document text
    • http://zatereb.inkonivory.ca/uploads/1/3/1/3/131383297/a8cab5ed24.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/1/0427/4572/5094/files/wurudotizizeramelov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9823/5289/files/94514751838.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6884/2393/files/71966287745.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1293/2255/files/tiny_smiley_face.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0451/1278/7109/files/case_study_operations_research.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3858/8584/files/2296019183.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8638/8136/files/55338094984.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0446/6094/9155/files/andante_andante_sheet_music_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8059/7152/files/bixuvil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6645/8266/files/74147321543.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7446/7478/files/income_tax_slabs_for_ay_2020_19.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_off00006503.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6503 5464 bytes
SHA-256: 1824db99f20d094978a4881cb68c1362c3fda495ee78ab52fbc045e7d96fcb63
font_01_sfnt_off000077a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77A0 10400 bytes
SHA-256: 14c40f64bea63b574ec0bc1c0816d569c32e45d7a77025fa63d221fd2e6fcece

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