Malicious PDF — malware analysis report

Static analysis result for SHA-256 c3390fc41f08e21d…

MALICIOUS

PDF

50.5 KB Created: 2020-07-25 01:57:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6e628bc26fe0cf835b1de3ee31f7772a SHA-1: 3b5c72c03573b816b5fd765f2720a0b3a06a1fcd SHA-256: c3390fc41f08e21ded2c51b4dce4902b39fd140024e3049185e52fdf7fc8cb82
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 Malicious Link T1059.001 PowerShell

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=insurance+company+valuation+report'. Additionally, it exhibits characteristics of a PDF link farm, with numerous external links, including one to 'https://cdn.shopify.com/s/files/1/0434/7976/1061/files/buvawa.pdf'. The document body, though heavily obfuscated, suggests a lure related to an 'Insurance company valuation report'. The combination of these factors indicates a phishing attempt designed to redirect 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=insurance+company+valuation+report In PDF document text
    • http://files.wyomingbaroque.org/uploads/1/3/1/4/131437246/3798493.pdfIn PDF document text
    • http://files.yogashak.com/uploads/1/3/0/9/130969910/zevuru.pdfIn PDF document text
    • http://files.oakwoodbaptistmilan.net/uploads/1/3/1/0/131070379/2275896.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/1/0434/7976/1061/files/buvawa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1945/3095/files/nekajedosimifutowilar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5011/4965/files/56308704162.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4777/8469/files/1280493251.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8266/9461/files/16568818429.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2931/5229/files/25453938187.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5555/4455/files/kudoxod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4185/7448/files/marebofelasebixabab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4173/4311/files/10989746449.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/44603331863.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8180/1629/files/44855298062.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3240/4380/files/zusesofanezirepezeforar.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_off0000804a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x804A 5060 bytes
SHA-256: 3707fdebdb7d5af3db60f8f0ca3494538f6f701e142f217331ca6d0f074ca764
font_01_sfnt_off00009162.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9162 13968 bytes
SHA-256: 56287e1835e05cda7690af89985c3c8026f2e70188dec4c1ab020e6c96150170

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