Malicious PDF — malware analysis report

Static analysis result for SHA-256 53f0fe7b905357dc…

MALICIOUS

PDF

34.6 KB Created: 2020-08-15 05:43:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d204135dd0c64e1b276b216a9e25fee3 SHA-1: d619dd4b9ee0553aad811ad70ddc46ca2cfebfaf SHA-256: 53f0fe7b905357dc8f4421210948a815dd0eda01913eae3e89854d79eff0359e
162 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous links, many pointing to a redirector service (ttraff.com) which is flagged as malicious. The document body and embedded links suggest a link farm or SEO manipulation tactic to drive traffic to malicious infrastructure. While no scripts were explicitly extracted, the PDF structure and embedded links are indicative of a phishing or redirection attack.

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.
  • SEO-redirector lure link (multi-word utm_term) low PDF_SEO_UTM_REDIRECTOR_LINK
    PDF contains a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the search-keyword gateway used by the 'free document download' phishing family. Surfaced as an IOC; on its own this is a low-confidence signal.
  • 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=bhakti+song++mp4+3gp In PDF document text
    • http://files.jakebuyshouses.us/uploads/1/3/0/7/130775897/6527367.pdfIn PDF document text
    • http://tovexibab.dataco.ca/uploads/1/3/1/6/131637814/kixigikiporupema.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/1/0440/4881/0149/files/28463795568.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4488/7966/files/cambridge_primary_curriculum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0822/0574/files/pobufozidakerexido.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9812/8036/files/18518768261.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0163/3177/files/1096580239.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3792/5281/files/2008_ford_focus_repair_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0729/6163/files/wivoxufab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9243/4343/files/22725827015.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0134/8255/files/jidusa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3260/0985/files/domain_driven_design_martin_fowler.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2814/4543/files/21326332149.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6790/0061/files/affidavit_forms_uk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6231/9517/files/gufokaligumuzufukelede.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1639/4648/files/asiatic_mode_of_production.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 2

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_off00004a1d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4A1D 5468 bytes
SHA-256: c0ff19b72a5af135b94db19bccdc122f4b704d409780f26a19fcf5cd953c0ca3
font_01_sfnt_off00005c96.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C96 9764 bytes
SHA-256: 4d177629645f70e676a5a1e2d4f8a57448ae51b5e8abc95b9b39ab047943d97a

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