Malicious PDF — malware analysis report

Static analysis result for SHA-256 27b5a06b74e13a81…

MALICIOUS

PDF

44.0 KB Created: 2020-07-28 06:57:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 9dbba20d5e5ba6730b93fdeace2745e4 SHA-1: 0776c86689fe3f27cdcaa30482ac37eee2dffe9d SHA-256: 27b5a06b74e13a813971d155badf806a925dbc7b9ef386a8a0da094ccf2cb3b2
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1566.001 Spearphishing Attachment T1566 Phishing

The PDF contains a large number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector. The document body, though heavily obfuscated, appears to contain keywords related to chemistry, suggesting a lure. The presence of a malicious redirector indicates an attempt to lead the user to a harmful destination, likely for phishing or malware delivery.

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=acetate+de+sodium+formule In PDF document text
    • http://files.ramonbullard.com/uploads/1/3/0/7/130738704/dolevusuripesa-noruputagidix.pdfIn PDF document text
    • http://files.goringgaphistory.org.uk/uploads/1/3/0/7/130774973/6819446.pdfIn PDF document text
    • http://files.olivermsa.com/uploads/1/3/2/3/132302892/wadiwu-sadekutum-fobilibokepiwu.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/1/0434/3581/9173/files/gogoxejilisopiwopika.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6033/9623/files/boruzizurano.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4479/8613/files/niruwo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8866/7039/files/zedupekerirelibigu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6775/8999/files/27308714639.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tizerosotusalasebix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8592/2466/files/raxagodis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0096/2977/files/71757941346.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2624/9885/files/xavox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6296/8991/files/mugewariwepeda.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4494/6588/files/bodasenadepuribepamafudo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2656/9633/files/96305964567.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_off00006eb8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6EB8 4932 bytes
SHA-256: e645ad23bb3ec6dbcfd3edbcf425a2089f9e2755983e0bcfe3db43f033fbb503
font_01_sfnt_off00007f78.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F78 10412 bytes
SHA-256: 7830b6c5930b1a9f1a145aa03ecd232fb101f4a407f9ce3b231fffd52727b32f

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