Malicious PDF — malware analysis report

Static analysis result for SHA-256 1423cfafd6ce22de…

MALICIOUS

PDF

39.4 KB Created: 2020-08-19 10:28:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6f252a65d55a6829be676af322c299ff SHA-1: c810c1a9c23e3119b384c0ab6264fb2c70b39433 SHA-256: 1423cfafd6ce22de1af1c88772750c1256f8f04beeb98028964c9aac47e23c6d
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many pointing to a redirector service (ttraff.ru) that is flagged as malicious. The document body and heuristics indicate a "free download" lure, likely a phishing attempt to redirect users to malicious infrastructure. The ML classifier strongly supports the malicious verdict.

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=beard+hair+brush+photoshop+free In PDF document text
    • http://files.mygentlebeginnings.com/uploads/1/3/1/4/131453456/7332417.pdfIn PDF document text
    • http://files.robertinconcert.com/uploads/1/3/2/6/132680796/d62a078a.pdfIn PDF document text
    • http://files.molliesmorsels.com/uploads/1/3/0/7/130776521/dovetuvipe-barasesabigupeg-woxik.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/1/0427/5548/9948/files/solo_leveling_novela_ligera_espaol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2160/6817/files/wozorulofesewakidubidejo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2607/8101/files/90372065124.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7337/9231/files/taxinanupamebevuxirigome.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6359/1590/files/momidovajilowowepo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4553/6419/files/nezirev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/sobobubujuwin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7839/3749/files/vedic_astrology_books_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5703/5929/files/15804677908.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7689/5398/files/nevumebatezi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/88065476392.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9511/3374/files/kananinevegos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8492/2526/files/gozolulogonurobuvisenisad.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 5

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_off00004968.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4968 5064 bytes
SHA-256: 451669ea1c933feca1e4f4dec4edab339f3c4694a2c461e670db216447018287
font_01_sfnt_off00005aac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5AAC 12936 bytes
SHA-256: 360c6a0d46bf7e0e76dbb7ff295d0d6755080cce2545e3519cfa19b83210ed91
font_02_sfnt_off0000827f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x827F 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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