Malicious PDF — malware analysis report

Static analysis result for SHA-256 6a519f090e48f805…

MALICIOUS

PDF

52.0 KB Created: 2020-08-24 06:44:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a382dcdb9a793c24cb4136e2f6dd7f37 SHA-1: ccee523f4a9ae29f03b3ceabf529adec6b915f58 SHA-256: 6a519f090e48f805a20ffec42ce1a9ddd5c4adf73c577eba4adc4eba115c7bd1
194 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.ru, which is part of an SEO link farm. This suggests a phishing or scam attempt, likely using the 'glatiramer medication guide' as a lure. The ML classifier also strongly indicated maliciousness. No scripts were extracted, but the embedded URL is the primary indicator of malicious intent.

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=glatiramer+medication+guide In PDF document text
    • http://files.parcelstoplaces.com/uploads/1/3/0/8/130814124/tepamarukotovororu.pdfIn PDF document text
    • http://files.annaprigl.com/uploads/1/3/1/6/131637701/474e9cafdf1c.pdfIn PDF document text
    • http://files.masterthompson.us/uploads/1/3/1/8/131857758/d0175694.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/1/0427/5725/9420/files/2759770900.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3347/5737/files/44943919083.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7994/9733/files/kupawiga.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/8986/0510/files/speak_up_3rd_edition_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4447/0933/files/kubunip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7096/3366/files/building_other_construction_workers_registration_form.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9110/7752/files/gumojukotimuri.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6556/5589/files/nixoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1987/8048/files/70098119130.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3728/6812/files/common-_size_analysis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0445/8813/8660/files/functions_of_morphology_in_linguistics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5630/8123/files/bhakti_bhakti_gana.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1047/4663/files/denotixabetirebanota.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5020/4316/files/tapased.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5031/1579/files/depoxokenumedoragoxinixu.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000760f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x760F 4996 bytes
SHA-256: 6e03c2b94003e059f951210e64984f1f4362bc55e80b571a8123c1df3e22a711
font_01_sfnt_off000086ef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x86EF 14716 bytes
SHA-256: 687836202c13118281100a3360c2af765a4f5bcdec53c8551a2d5c9c3b750951
font_02_sfnt_off0000b443.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB443 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c