Malicious PDF — malware analysis report

Static analysis result for SHA-256 dbed30ad1dae09a2…

MALICIOUS

PDF

43.3 KB Created: 2020-08-11 05:59:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0c810d957dc0f7cd266021f1312755c4 SHA-1: 6ab8667a71a49ddc729c8cad6783b751498f3936 SHA-256: dbed30ad1dae09a2fc30f7bbb091a5683f66942e0b1ee52709f98b9862a3acdd
194 Risk Score

Malware Insights

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

The PDF document was flagged as malicious by a machine learning classifier and contains a significant number of embedded links. One of these links, 'https://ttraff.ru/pify?keyword=bemba+to+english+dictionary+pdf', points to known malicious redirector infrastructure. The document also exhibits characteristics of a link farm, with numerous links to other PDF files hosted on various domains, suggesting an attempt to manipulate search engine results or distribute malicious content indirectly. 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.ru/pify?keyword=bemba+to+english+dictionary+pdf In PDF document text
    • http://files.forgelabradors.com/uploads/1/3/1/3/131398143/bigavuposararul_nezopatisixilop_kokikuwore.pdfIn PDF document text
    • http://zexukimiv.sycharlutheran.org/uploads/1/3/1/8/131871740/vaxuwujaziwu.pdfIn PDF document text
    • http://files.prolineroofing.com/uploads/1/3/0/8/130873918/4a4212ebcda9d4b.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/1/0430/8572/5857/files/craigslist_org_el_paso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7270/7990/files/manufacturing_case_study_examples.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7673/0533/files/77017368719.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9674/4871/files/6263605849.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5547/1002/files/banamenox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4261/9035/files/dragonskin_map_locations.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9429/5203/files/37194199569.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3475/4728/files/64793898511.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1572/4456/files/56615424099.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3680/3233/files/31821577112.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7122/5494/files/38447492752.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 1

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_off000061a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61A4 5860 bytes
SHA-256: d3fd27bb5eb6825f3e4565d806bb347857d4884d19c7ecea54d6191c89c8bd35
font_01_sfnt_off0000756d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x756D 13436 bytes
SHA-256: eb5832f400f5a84feba59840379d1e59c2cf52de804a012ace67ed7d158b2ce5

Open this report in the interactive analyzer, or submit your own file for analysis.