Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e950da44482ff38…

MALICIOUS

PDF

55.5 KB Created: 2020-08-09 07:21:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5bd98962b8df9de8bc8c792e7f42965a SHA-1: 00259f0de1b98fe05da40f3c763b85c5127b058f SHA-256: 4e950da44482ff38c5b3cb1da80d4d125dad074571160fdcb86ae692a046bb87
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, a common tactic for SEO link farms and redirecting users to malicious sites. One critical heuristic identified a link to known malicious redirector infrastructure at 'ttraff.com'. The document body, though heavily obfuscated, contains the URL 'https://ttraff.com/pify?keyword=control+sensors+and+actuators+pdf', suggesting a lure to download a PDF that ultimately leads to malicious content.

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=control+sensors+and+actuators+pdf In PDF document text
    • http://tixokage.breadolives.com/uploads/1/3/0/8/130874038/pixukipa.pdfIn PDF document text
    • http://jajixex.elisabethwinnen.com/uploads/1/3/2/6/132681670/sutudumesuw.pdfIn PDF document text
    • http://files.mary-ellenfriedland.com/uploads/1/3/1/3/131382808/78e5e0908355be6.pdfIn PDF document text
    • http://fizevu.lindaegnatz.com/uploads/1/3/1/6/131637254/wakapetag-vidoxi-mulifuvu-topemamutewuno.pdfIn PDF document text
    • http://files.bysamanthajo.net/uploads/1/3/1/1/131163718/0fc43563df4016a.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/1/0438/2598/7734/files/carl_gustav_jung_el_libro_rojo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2113/9096/files/zeputod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6454/0835/files/97177198792.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/gibowutobarifokegibig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2994/4730/files/automatic_transmission_parts_diagram.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3282/1412/files/31826227377.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4939/4080/files/apfs_inverter_failed_to_invert.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/rejumaxerufu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0944/1953/files/nokaguzaseviduru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3545/0774/files/bissell_proheat_2x_troubleshooting.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4527/3251/files/dont_mine_at_night_roblox_id.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4865/7318/files/89552674962.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 8

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_off0000989b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x989B 5052 bytes
SHA-256: 58880483f6464977755470618458ec302f0f7db1f218e74aaa9abdf306c5638c
font_01_sfnt_off0000a9d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA9D3 12084 bytes
SHA-256: dbfecb002383a0e5bb64142491f2e1b9a0696b1e6cca1c42b2e7f9c6fdb669b3

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