Malicious PDF — malware analysis report

Static analysis result for SHA-256 e485dcfe2ba86205…

MALICIOUS

PDF

51.3 KB Created: 2020-08-19 03:07:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2ad2261a33100d7513b11e343cddc19e SHA-1: e36fbc26dd0b65706157c953103add7a21f3d1dd SHA-256: e485dcfe2ba86205f2ce9f49d558aaf093016948c0103db5c0648fdac1a7ad8a
194 Risk Score

Malware Insights

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

The PDF contains a link that redirects to a known malicious domain, ttraff.com, with a keyword suggesting a lure. The document body, though heavily obfuscated, contains the string "F16 dcs guide" and the malicious URL, indicating a phishing attempt. The presence of numerous links to external PDFs, many hosted on Shopify, suggests a link farm designed to obscure the malicious destination. The ML classifier strongly flagged this PDF as malicious.

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.com/pify?keyword=f16+dcs+guide In PDF document text
    • http://vinajomaf.wilsonhypnotherapy.com/uploads/1/3/1/4/131437308/rabiba-vejififawe.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/1/0433/0687/7080/files/girotimovu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4566/4406/files/wenuxesu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2168/1315/files/bodie_kane_and_marcus_investments.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9373/8143/files/25206927892.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8125/2512/files/juwulizuwixu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6626/9597/files/siran.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/4002/6273/files/allahabad_high_court_aro_previous_year_paper_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6341/9814/files/radawoxufobulapo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2197/5197/files/jozikuxewakatoxu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0292/1111/files/24697852276.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 7

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007444.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7444 4516 bytes
SHA-256: 0fd8d26b24eb65adf351e4edcb422d4cf29abe8586afbde92490aa5386779b5b
font_01_sfnt_off00008394.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8394 2484 bytes
SHA-256: 71d489ca799b404f92f1f265c0ad790831edaee34d417a17e5a0bcd97902c65b
font_02_sfnt_off00008e33.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8E33 10652 bytes
SHA-256: 6632cb48177b810bdf5b583b079014a76762b2175f8933427afe9aa2f0620189
font_03_sfnt_off0000b2ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB2AD 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378

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