Malicious PDF — malware analysis report

Static analysis result for SHA-256 a45d88da2495be21…

MALICIOUS

PDF

51.9 KB Created: 2020-07-20 19:49:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 54d6d9d331046a16b87f0b1fe6e50279 SHA-1: 4ecb7f6c3c2ac21af585069abc41a1795bed26d3 SHA-256: a45d88da2495be21abbe5fd6af37d4cd04c7ddcee0d40ae3d712c255d982fd2a
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains numerous embedded links, with a critical heuristic firing indicating a link to a known malicious redirector at 'ttraff.com'. The document body, though heavily obfuscated, appears to contain metadata related to PDF generation and potentially SEO keywords. The presence of a large number of external links, many pointing to shopify.com, suggests an attempt to manipulate search engine results or drive traffic to malicious sites.

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=spring+framework+mvc+application+step-by-step+pdf In PDF document text
    • http://files.canadianclubedmonton.com/uploads/1/3/0/7/130739678/wobaki-xunaxo-zuxido.pdfIn PDF document text
    • http://files.multiplicitycreations.com/uploads/1/3/0/8/130814290/vebebaxareniwawa.pdfIn PDF document text
    • http://files.starseedallianceinternational.com/uploads/1/3/0/8/130874026/2501334.pdfIn PDF document text
    • http://files.killjoy.info/uploads/1/3/2/8/132816158/444fa6d86d0810f.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/1/0431/9661/2768/files/7234442226.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9181/2767/files/giboduzid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8976/5279/files/16988429966.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0621/4819/files/jufupovegufojijivoxupo.pdfIn PDF document text
    • https://pejabuzof.files.wordpress.com/2020/07/lawixiwazi.pdfIn PDF document text
    • https://sorexujuselu680172323.files.wordpress.com/2020/06/fudegidija.pdfIn PDF document text
    • https://nalawerap212150830.files.wordpress.com/2020/06/1878196199.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9938/1146/files/sonisufemevesemuzulatunu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/dejozetopugewafapo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9313/1425/files/77861100013.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/jatebilebasa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8814/9668/files/forem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8611/1137/files/nozeti.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2204/1767/files/suxuvatidusasizexexuvi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7147/0742/files/86014060194.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9696/4261/files/zetapexafesijuxikowof.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007ba8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7BA8 5856 bytes
SHA-256: a048576e7f3f879110c1716bfcedf5e51d40ee8d99543431c921534309c7bd10
font_01_sfnt_off00008f9a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F9A 16128 bytes
SHA-256: 3f5d589c499f1bb1f38ad6fc1fee9dab6e7a8face59ed6fc92e3cb36137b5b4d