Malicious PDF — malware analysis report

Static analysis result for SHA-256 cedbc749dfc3f763…

MALICIOUS

PDF

36.1 KB Created: 2020-08-24 10:07:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 93965e0a9b779ab7066941f81b6d8625 SHA-1: d3aa9d5b4fb4cc3338755becef83390a727bf7cb SHA-256: cedbc749dfc3f76343d3bcc34afa20e41fde0ae1bd37437fd051214b9120852a
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to Shopify domains hosting seemingly benign documents. However, one critical heuristic firing indicates a link to known malicious redirector infrastructure at 'ttraff.ru'. The document body, though heavily obfuscated, contains the same malicious URL, suggesting the primary intent is to redirect users to this malicious site, likely for further exploitation or phishing.

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=bajrangi+bhai+movie++hd In PDF document text
    • http://files.groepberton.com/uploads/1/3/0/9/130970008/815233dbfad4b.pdfIn PDF document text
    • http://biporeja.mrogrady.com/uploads/1/3/1/4/131482823/wofode_lawivowe_nubodideme_wivoju.pdfIn PDF document text
    • http://jarexu.ccpublicschoolsdance.com/uploads/1/3/0/8/130874540/fozumutomed_dukobopakiveli_zijibiz_debewid.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/1/0447/6777/2821/files/abaqus_theory_guide_6._14.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7537/0136/files/chapter_4_time_value_of_money.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8095/8617/files/pikujemitigebimoximowovid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5590/6973/files/84749540351.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6467/8807/files/54830370202.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0463/3133/0721/files/blow_molding_process.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6404/1373/files/house_rules_template_for_tenants.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5288/3352/files/fitokakuzabezolomom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/8281/3341/files/design_and_simulation_of_dc_dc_boost_converter.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9167/2736/files/37146477531.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2990/5058/files/veterinary_microbiology_textbook.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7849/2072/files/wavemamamiletepege.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 4

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_off00004e69.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4E69 5352 bytes
SHA-256: 11cf56f8a46b93379a10f6bd378f3316439fb0bad5d6ea146e773d7baee0b27c
font_01_sfnt_off0000607b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x607B 10248 bytes
SHA-256: b3ec6851594ec06b2f7f76fea7ba5e6c77e4a217e23d039916f0d929a5a8a52f

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