Malicious PDF — malware analysis report

Static analysis result for SHA-256 7f2e83535a4904a8…

MALICIOUS

PDF

45.5 KB Created: 2020-08-17 07:23:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 03aa954a33a6d5b88a9e5756424d2c22 SHA-1: a0045035621382fda2342de3d93973c12c3c419e SHA-256: 7f2e83535a4904a87cc56bad9a929e38d4ea6db1d5d7c2b61ea0ce403801f3fa
194 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.ru) that is flagged as malicious. The document body and embedded links suggest a lure to download a PDF, likely a phishing or scam attempt. The presence of embedded URLs and the heuristic firings strongly indicate a malicious redirector used for phishing.

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=functional+areas+of+business+pdf In PDF document text
    • http://files.mandiecline.com/uploads/1/3/1/4/131406075/1f9d7c7e93f09.pdfIn PDF document text
    • http://bedaleref.gvdesigncontract.net/uploads/1/3/1/4/131454012/mixozanedifugeva.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/1/0433/4492/0734/files/letijokobivu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/77650869017.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4809/2323/files/11424644860.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8746/2551/files/effects_of_globalisation_on_developing_countries.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8820/6238/files/trotter_525_treadmill_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2778/4095/files/2004_ford_f150_owners_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6805/4949/files/era_cenozoica_unam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0646/6975/files/america_s_test_kitchen_recipes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7217/3733/files/74980528237.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9091/2159/files/7190372043.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2992/8872/files/discord_formatting_color.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 4

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_off00006848.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6848 5128 bytes
SHA-256: b444b7cb365e96bca39718a786857a355ebaa931c0ed59f6243329b3c3c897f7
font_01_sfnt_off000079ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x79AB 9776 bytes
SHA-256: b6835e3f04c4be50fa2850c3fbc134a88db8731b350229b88a60798042458c77
font_02_sfnt_off00009afc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9AFC 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34

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