Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e8d27433768f4be…

MALICIOUS

PDF

41.4 KB Created: 2020-08-14 16:29:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: eb351102f43035c9ac9518f5f6988729 SHA-1: 4801953f4739b255b7a549dd77f8220d969b82fe SHA-256: 2e8d27433768f4be2629ea59b5c2351f61c6e779e6805699ac04a01fd012c30a
194 Risk Score

Malware Insights

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

The PDF was flagged by multiple critical heuristics for containing malicious redirector links and a link farm. The ML classifier also strongly indicated maliciousness. The document body, though partially corrupted, contains text related to 'Idyllwild hiking guide' and embedded URLs, suggesting a lure. The primary malicious IOC is the redirector URL https://ttraff.ru/pify?keyword=idyllwild+hiking+guide, which is likely used to funnel victims to further 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.ru/pify?keyword=idyllwild+hiking+guide In PDF document text
    • http://pevewexuw.palletofwater.com/uploads/1/3/2/7/132710780/b2332472162.pdfIn PDF document text
    • http://files.fumcplattsmouth.com/uploads/1/3/0/7/130775277/totuxi.pdfIn PDF document text
    • http://duvaxe.fishersproduce.com/uploads/1/3/2/6/132681670/3018085.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/1/0434/0908/0477/files/witezusawuwoxidenu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6059/9711/files/the_minto_pyramid_principle_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7594/5113/files/bexuxuja.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3813/8783/files/xoneneka.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/mevadijuxirefasu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6372/9557/files/47933679374.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4735/2480/files/kikoro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5346/6271/files/nazagamedagukeziwof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1285/7754/files/transient_students_definition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0372/2402/files/xesuwesifofapulobakuwuxud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1284/0862/files/93750002274.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 3

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_off0000639c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x639C 4796 bytes
SHA-256: 49e398704e30df3d612590958f12d5ca288117f4475003ff0121396728ee48a4
font_01_sfnt_off000073fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x73FE 10532 bytes
SHA-256: f1ae6cc3c92415cd51f997342f70ee3cd66d5db265b7fec70d455aa9af02eb0d

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