Malicious PDF — malware analysis report

Static analysis result for SHA-256 d750e22bcb2a55e3…

MALICIOUS

PDF

51.4 KB Created: 2020-08-13 23:24:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1358b83a7efdc658ab7fb60099fab849 SHA-1: 4ac9913da1c7c936accd3389e6638c14382e9af2 SHA-256: d750e22bcb2a55e3eb6bfefa4640fa6cc3108fdf17e1988d0a60450534c766d4
202 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document contains numerous links, many of which point to a redirector service (ttraff.ru) that is known to host malicious content. The document body and embedded links suggest a lure for free templates, which is a common tactic for phishing or malware distribution. The ML classifier strongly indicated maliciousness, and the presence of redirector links confirms a malicious intent to direct users to potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=bunny+ears+template+free In PDF document text
    • http://gogov.laniefrick.com/uploads/1/3/0/7/130776644/6a79b.pdfIn PDF document text
    • http://files.backcountrywinery.com/uploads/1/3/1/6/131606453/752bbf4.pdfIn PDF document text
    • http://files.4bardworkingdogs.com/uploads/1/3/2/6/132681150/zojif-pekerasus.pdfIn PDF document text
    • http://files.nt-307.com/uploads/1/3/2/3/132302892/dac89e7ce2184ad.pdfIn PDF document text
    • http://files.foreverhereforyou.com/uploads/1/3/0/9/130969166/tefurewemowef_tisawipafimubil_ledafitetujuxu.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/1/0432/2682/4863/files/12572977471.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1872/1192/files/adverbs_of_frequency_exercises_perfect_english_grammar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8383/3249/files/4114186832.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1416/8480/files/kubolalulovew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5335/0055/files/panama_city_beach_water_temp.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0817/0918/files/xaveporoxibu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5719/2853/files/22081053531.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2040/2343/files/jeriluxumexi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3178/1791/files/pinufebef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1791/9909/files/27351803242.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4959/9651/files/packing_slip_template.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7353/5142/files/56527746585.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008b8d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B8D 5200 bytes
SHA-256: 4fe5bc9e6d2598d836f37374a9799cbd41e903160f505ae762dee59945c2daff
font_01_sfnt_off00009d33.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9D33 10312 bytes
SHA-256: 54dc1f807dab9bcb1f8c4f2b57dd15afc1a78b54a7218463e86bd32e5fdc6f7d