Malicious PDF — malware analysis report

Static analysis result for SHA-256 1eb4d39c33f4e6b4…

MALICIOUS

PDF

41.5 KB Created: 2020-08-23 18:09:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 903a6992fe3315f197e383f513ae64f2 SHA-1: d259278a9c2a502d71b81c4c5a6d71b1e84c6227 SHA-256: 1eb4d39c33f4e6b4afbef4145daff0e7a9cfdaba26f2449bf72d253059d3fd6c
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to `https://ttraff.cc/pify?keyword=video+format+converter+mkv+to+mp4`. This link is likely intended to lure the user into downloading further malware or visiting a phishing page. The document also contains a large number of embedded links, many of which point to Shopify domains hosting other PDFs, suggesting a link farm or redirection strategy. No scripts were extracted from this sample.

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.cc/pify?keyword=video+format+converter+mkv+to+mp4 In PDF document text
    • http://puvugogo.vertex-tooling.com/uploads/1/3/1/3/131378991/bizokamofeguxavomen.pdfIn PDF document text
    • http://files.icanondemand.com/uploads/1/3/1/4/131407315/9798661.pdfIn PDF document text
    • http://tuvotemu.mothersunite.net/uploads/1/3/1/4/131454151/ddb4b56922347a.pdfIn PDF document text
    • http://files.bwaltonwrites.com/uploads/1/3/1/3/131381237/59e0aadf584.pdfIn PDF document text
    • http://rakez.sharonvigil.com/uploads/1/3/0/7/130776672/xometela-degalimufujimem.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/1/0436/9825/8088/files/35180414307.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1739/5614/files/86241942789.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2946/2165/files/79068709262.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5923/1385/files/branches_of_abdominal_aorta.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1604/5222/files/vixisexidisiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/8986/0510/files/hyperbola_problems_with_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/musuvagexas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6986/6133/files/90036242173.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3179/6632/files/ansiedad_en_los_adolescentes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4413/4294/files/ielts_general_writing_task_1_samples.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4349/5842/files/brahm_kavach_full_path.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/pegofegomena.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006439.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6439 5268 bytes
SHA-256: cb9cdb09c6c1e57ca20a348fce1e410745439f49ec778f58ae66ff8f69bd2c1a
font_01_sfnt_off0000761c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x761C 10192 bytes
SHA-256: eae381014e5b3bc64d3dc473ed9dd589b41fb3690830d2485c345ef4278b6a5e

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