Malicious PDF — malware analysis report

Static analysis result for SHA-256 cfe49aabbdd2f2fd…

MALICIOUS

PDF

47.2 KB Created: 2020-08-12 07:15:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6687b96889c7cfb89dbeea556ded1ab2 SHA-1: 886404bf719389e2961cbb750446d37a2c95d08e SHA-256: cfe49aabbdd2f2fd180a379631353fcd9b5b91747c5d16a9fa198d2aa1a59d1a
194 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/wb?keyword=tensiometro%20manual%20mercadolibre'. Additionally, it exhibits characteristics of a link farm, with numerous embedded URLs, many hosted on Shopify. The document body, though heavily obfuscated, also contains the primary malicious URL. The combination of these factors strongly suggests a phishing or redirection attempt.

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/wb?keyword=tensiometro%20manual%20mercadolibre In PDF document text
    • http://files.sogchurch.net/uploads/1/3/1/4/131407944/zevajawewe_zoxidot_xoxajib.pdfIn PDF document text
    • http://files.peachrent.com/uploads/1/3/2/7/132741144/puzaletixevewenoz.pdfIn PDF document text
    • http://files.whiteschapelumc.com/uploads/1/3/1/4/131438718/kesipesunijejo_motiwinatinam.pdfIn PDF document text
    • http://files.timkentart.com/uploads/1/3/0/7/130776075/7659163.pdfIn PDF document text
    • http://files.dunkislandviewcaravanpark.com/uploads/1/3/1/4/131437453/bifexaji.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/1/0428/5395/7799/files/gelivibojojakafefuwe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9902/7611/files/blank_calendar_september_2020_printable.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2032/8864/files/67256100121.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3749/1354/files/37624166367.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0083/9842/files/how_much_have_you_spent_on_league.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8539/7152/files/kasupunofisexisoja.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7315/8821/files/23748908774.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3641/5899/files/jiwewupa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3659/7654/files/walaledavesaduwomame.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/dotalufakelani.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0923/6374/files/47764256451.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9703/0817/files/95327745256.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3441/8072/files/76133877033.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1313/4757/files/84462129027.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_off00007741.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7741 5176 bytes
SHA-256: 282684c9c2ca18318e505fb308ef78adeb3eefc05ff17496d13fb1f0b7134e46
font_01_sfnt_off000088b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x88B5 11652 bytes
SHA-256: 91df84b79db883900a25c9314999e5ba0388b4ed2cebb9dd824b0cb7314e4b3f