Malicious PDF — malware analysis report

Static analysis result for SHA-256 a114e30b44203aff…

MALICIOUS

PDF

43.7 KB Created: 2020-08-26 23:04:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 94f71f96b4e92dc7ff0a2fd04883636a SHA-1: 40f9c9a26b067836ec15151f73f7002566eae336 SHA-256: a114e30b44203aff8fe0cf4a337873a93ab8d41eaff6825aa6e196fa726688d4
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to a link farm hosted on Shopify. One of the primary links, 'https://ttraff.ru/pify?keyword=sofia+the+first+and+the+secret+of+av', is flagged as a malicious redirector. The document body, though heavily obfuscated, contains references to 'Sofia the First' and the malicious redirector URL, suggesting a lure to trick users into visiting malicious sites. The heuristic firings strongly indicate a malicious redirector and a link farm, supporting the attack pattern.

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=sofia+the+first+and+the+secret+of+av In PDF document text
    • http://vovigog.riverglennkennels.com/uploads/1/3/1/4/131454215/nixezexirazezib.pdfIn PDF document text
    • http://vekowula.nutrismartworld.com/uploads/1/3/1/4/131406082/zujavakox-xelukotunuro-kubetamoz.pdfIn PDF document text
    • http://files.babasvegancafe.com/uploads/1/3/0/8/130874658/wiwub.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/1/0430/7707/5108/files/womokiwuzagatesenafan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4233/3087/files/present_continuous_tense_worksheets_with_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2269/4046/files/combined_gas_law_equation_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0454/2342/7752/files/xexuwejijedililagilavil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8967/3883/files/pimozegonesefeturukaze.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9964/3297/files/background_check_army_form_number.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/wiwatubaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9128/7463/files/rearranging_equations_worksheet_gcse_with_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0465/0575/4776/files/horse_trot_animation.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2318/7614/files/45983301444.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6601/5400/files/59618085363.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_off00006df9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6DF9 5240 bytes
SHA-256: d4def16e781c20ceecc8829622ce4c00c0862ea754f5bd5e938c6e358f8eb149
font_01_sfnt_off00007fbd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7FBD 9980 bytes
SHA-256: d8e72ca92fa466a8e3e50f3e0b2d716b0710dd752be609bc86bb4777cfcb6d2d