Malicious PDF — malware analysis report

Static analysis result for SHA-256 d25eec0408829829…

MALICIOUS

PDF

48.3 KB Created: 2020-08-11 08:44:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 238d2221a8e42af2ba7678f9b75bcefa SHA-1: eb860c7d98d211b7e8993aab9846fec8d1145381 SHA-256: d25eec0408829829cbdb26fac9c0b73bbf3060cba06c1fa0beb494e3e89cd743
194 Risk Score

Malware Insights

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

The PDF contains a link farm designed to redirect users to malicious infrastructure, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK and PDF_SEO_LINK_FARM heuristics. The primary malicious URL identified is https://ttraff.ru/pify?keyword=marguerite+duras+the+lover+pdf. The ML classifier also 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.ru/pify?keyword=marguerite+duras+the+lover+pdf In PDF document text
    • http://files.manjaroresort.com/uploads/1/3/1/4/131453897/0b388.pdfIn PDF document text
    • http://veliwal.whitbybrooklinprobus.com/uploads/1/3/2/8/132814930/d5ba6a4ee9.pdfIn PDF document text
    • http://files.huttdesigns.com/uploads/1/3/0/7/130738513/afe90.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/1/0443/9700/2918/files/osrs_eadgar_s_ruse.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3349/1606/files/lomafaxili.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/gadawatozuwagujezudoru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3419/8684/files/double_helix_drawing.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8184/3353/files/jelug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/ganisififado.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/wogol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7955/6504/files/kamuwo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/24375498268.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0452/4569/4112/files/business_plan_cover_page.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 6

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_off0000739e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x739E 5144 bytes
SHA-256: f873d2c1a64c42cf407fcfa23fe653b46fc257fddff13380a64edabbafbc7db8
font_01_sfnt_off00008547.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8547 9684 bytes
SHA-256: 31e99682347fa2574d1f81bed60591e24fb0f99ef3c3f082bc57ee0179f93d4d
font_02_sfnt_off0000a65e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA65E 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

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