Malicious PDF — malware analysis report

Static analysis result for SHA-256 d2370b69245cdbd9…

MALICIOUS

PDF

47.4 KB Created: 2020-08-04 01:05:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d2bfb588149b0369c4736928634ccb6e SHA-1: 818497478048c00456b0f2e0c8db1f60f5b90887 SHA-256: d2370b69245cdbd91e103b347a3962d7f54f6113cdef841a05d1486d98af617b
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector at 'ttraff.ru'. This suggests the document is part of a link farm or SEO poisoning campaign designed to drive traffic to malicious sites. The ML classifier also strongly indicated maliciousness.

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=jurnal+pluralisme+agama+pdf In PDF document text
    • http://files.louatelier.com/uploads/1/3/0/9/130969465/kupinufaduti-guneb-nutelixijunuwu-lepuma.pdfIn PDF document text
    • http://files.reframingleadershipconsulting.com/uploads/1/3/1/4/131406592/somesiluwo_kumaganotovox.pdfIn PDF document text
    • http://files.lakelurelabradoodles.com/uploads/1/3/2/7/132741397/popifuvig-dozegibop-lunatimute-lugizemidutaz.pdfIn PDF document text
    • http://files.marvinsnider.com/uploads/1/3/0/9/130968937/3434986.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2445/7633/files/epidemiologia_veterinaria_michael_thrusfield_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7961/5142/files/zawedoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9110/7742/files/62539314190.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5557/0341/files/zukonepemawiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2439/2087/files/11571252433.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2788/9302/files/50643393096.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7904/9121/files/mixiwev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7362/5500/files/fufitutur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6199/1841/files/jepabewemib.pdfIn PDF document text
    • https://doi.org/10.24042/ajsla.v9i1.1408In 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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006e00.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E00 5044 bytes
SHA-256: a5f7e5862f070e47b3bab7c7e2e5de98dbd8178bb7b6ef788862124228fc7726
font_01_sfnt_off00007efc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7EFC 10488 bytes
SHA-256: 888d34a7ba2397e69b795bc6f9c38821d3c29f510ba30de022aa6733c004a04c
font_02_sfnt_off0000a2d4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA2D4 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378

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