Malicious PDF — malware analysis report

Static analysis result for SHA-256 970fc618d1ece174…

MALICIOUS

PDF

48.3 KB Created: 2020-08-13 22:56:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a61b8a34c374c132c3c729c3ebde5671 SHA-1: 4b3535cdbf6d8be9ee26c832d02c894cc90472a0 SHA-256: 970fc618d1ece174fe266ad3aba0e28cf249f76caa1d0c93468e1f5d587b562e
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to a redirector service (ttraff.ru) that is flagged as malicious. The document body, though heavily obfuscated, contains references to the malicious URL and other benign-looking URLs hosted on Shopify. This suggests a link farm or redirection attack designed to lead users to malicious content.

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.ru/pify?keyword=cartesian+coordinate+system+grade+8+pdf In PDF document text
    • http://files.zbfc.org/uploads/1/3/1/4/131411896/jiriku.pdfIn PDF document text
    • http://files.bridgettefowlerpoetry.com/uploads/1/3/1/4/131437376/7c50999cb64511.pdfIn PDF document text
    • http://files.spawholesaleproducts.com/uploads/1/3/1/8/131856331/mevurobitar.pdfIn PDF document text
    • http://files.eframesuk.com/uploads/1/3/1/4/131437423/bevakojas.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/1/0435/6728/4387/files/46085478555.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0390/2112/files/assembly_tutorialspoint.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1420/7134/files/neet_application_form.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0469/0581/files/nuvukofo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/nemevisofopanufu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2287/5797/files/skyrim_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0833/3736/files/filariasis_file.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3849/8206/files/nawebume.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6372/8545/files/71860724869.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5327/7589/files/13524682021.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1028/5983/files/the_carrie_diaries_season_3.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2491/6388/files/81802354115.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0196/0854/files/vexejakezavipetodipin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9442/4232/files/22528967587.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7474/7545/files/20182126067.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_off000071d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x71D2 5644 bytes
SHA-256: 8486ab51a4f29b7f9931ea66f1169253615e41a98221c3eb523ea16f21295bed
font_01_sfnt_off000084fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x84FD 15224 bytes
SHA-256: feea072e19fa1b6368f8b5fb5de762cecd027511218ea370a1093ef195a6d600

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