Malicious PDF — malware analysis report

Static analysis result for SHA-256 2520cecdab034cfa…

MALICIOUS

PDF

63.9 KB Created: 2020-08-20 23:52:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ae951331a931238f9999226aeb9c9eb0 SHA-1: 6745938c64ec64256d7b7401fadc80f2fc67f8a8 SHA-256: 2520cecdab034cfa145be442289c1f9569afdd41bd56a70f4f3f3c19eafedaba
194 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=manual+can+opener+target'. This URL is presented within the document body, disguised as a link to a manual for a can opener. The file also contains a large number of external PDF links, many of which are generated SEO links, suggesting a link farm or distribution mechanism. The ML classifier also flagged this PDF with high confidence.

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=manual+can+opener+target In PDF document text
    • http://xogoru.somervilleeyecare.com/uploads/1/3/1/0/131070152/cb00176.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/1/0431/3127/3370/files/child_development_13th_edition_john_santrock.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6555/7670/files/subject_and_verb_agreement_exercise.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2784/7576/files/donirimizixewavuziv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5649/6794/files/52613670397.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9648/8613/files/33197846389.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/muxolalinurijelibabozafod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9902/9655/files/paduwezabadates.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7469/8902/files/case_study_research_design_and_method.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2930/7287/files/ranisub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4443/7142/files/fe_review_manual_3rd_edition_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8949/4177/files/fanimafosikaxediwi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7542/7740/files/xivurobi.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 1

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_off0000af3e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAF3E 4764 bytes
SHA-256: 040bfa8890331c870ebd6c301c54d6bd6d9fbc6857f4ffd46cd61e56e511de70
font_01_sfnt_off0000bf7c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBF7C 10820 bytes
SHA-256: ba55599dd1042f933b9e419fdec951e72edb16d4a94d997d1ddeeaa8a7ecafd2
font_02_sfnt_off0000e475.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE475 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

Open this report in the interactive analyzer, or submit your own file for analysis.