Malicious PDF — malware analysis report

Static analysis result for SHA-256 1e2d3c611463e651…

MALICIOUS

PDF

43.1 KB Created: 2020-08-06 05:38:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: bf90343b640e2cc274b33101a1ed9d30 SHA-1: 2f9959606331a3f1a8ae3f92a4f48262ae0a07c2 SHA-256: 1e2d3c611463e6516edf207cea57fa6c9210d04f1dc33ea61d029f6c5f416db9
194 Risk Score

Malware Insights

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

The PDF contains a mass of external links, many of which point to potentially malicious redirectors or unknown domains. One critical heuristic indicates a direct link to a known malicious redirector at 'ttraff.com'. The document body, though heavily obfuscated, contains the same malicious URL, suggesting the primary intent is to lure the user into clicking this link, likely leading to a further stage of infection.

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=mathematics+iq+questions+pdf In PDF document text
    • http://seborobuz.coldwaterflowers.net/uploads/1/3/1/4/131437604/5194167.pdfIn PDF document text
    • http://files.monicasscarfs.com/uploads/1/3/1/6/131607054/zoziwadem.pdfIn PDF document text
    • http://files.ornamentmediang.com/uploads/1/3/0/7/130775980/pezimezuvasu.pdfIn PDF document text
    • http://rizog.4thdvpanecs.com/uploads/1/3/1/4/131437736/bdf0e867740d.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/1/0435/0659/8040/files/water_supply_and_pollution_control_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1266/1152/files/file_b_ln_ngc.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9592/4640/files/anguttara_nikaya_indonesia.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6611/2662/files/364241515.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3191/0821/files/fojina.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/3416/2853/files/building_construction_file_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5038/6079/files/dunoxiwumavinorowavu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8787/1646/files/veridakubilozanes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/1277/3272/files/41248508968.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2701/2507/files/windows_live_messengerhotmail.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2425/2055/files/17219997237.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1010/5255/files/67935376092.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5199/9637/files/kadorovazuwu.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000069e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x69E4 5396 bytes
SHA-256: 27f9b90f32bbc1aaf177e022a94be1b7e1f234c7160cb2c5250ce698e2830bf5
font_01_sfnt_off00007c29.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C29 10404 bytes
SHA-256: f695b6a373019749126018b26f97708ecbfb55f76a6885773a90b42bc4e6a2f0

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