Malicious PDF — malware analysis report

Static analysis result for SHA-256 0dcc65ac8932c986…

MALICIOUS

PDF

42.6 KB Created: 2020-08-05 16:46:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6680dc41991e663fe0796755f94996bc SHA-1: 6e6b3898c092f230cdd03dd8b7643cce6d7bacd4 SHA-256: 0dcc65ac8932c9860e866f829f8b129f0d9d3a44a3030113d4bdf2b8aedb0417
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous embedded links, many pointing to a redirector service (ttraff.ru) which is flagged as malicious. The document body and embedded artifacts suggest a lure related to 'Bebidas espirituosas pdf', likely a pretext for a phishing or malware download scheme. The ML classifier strongly supports the malicious verdict.

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=bebidas+espirituosas+pdf In PDF document text
    • http://files.shadysideofthetracks.com/uploads/1/3/1/4/131406762/9744250.pdfIn PDF document text
    • http://jamipuve.admissionsandaid.com/uploads/1/3/0/8/130874493/tusixesipi-befovaxumaz.pdfIn PDF document text
    • http://files.cookingnutritionseattle.com/uploads/1/3/0/7/130739916/kexepuget.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/1/0438/4194/5760/files/47191170972.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0318/3258/files/xinukanuzebezet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0191/2224/files/4282717350.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7709/9935/files/jagepum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6634/1029/files/siforumusezoweka.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8813/3787/files/jebupisiduzagimefabunu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8217/8979/files/vufuzowonuvarexikaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3723/7146/files/kepepujadelukoxuzozusilo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8883/0873/files/91465198654.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4100/3432/files/cambridge_english_for_engineering_workbook.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7379/8306/files/61502806811.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6310/5953/files/5e_status_effects.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9456/4252/files/52067839101.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9198/3512/files/83242348317.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 8

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_off0000647e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x647E 5192 bytes
SHA-256: 5d1927c449633fa4838b1bbbcbe9cd53eb3d61413e8331dda3dcf6537269f98e
font_01_sfnt_off00007630.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7630 11744 bytes
SHA-256: 3ab5c1040815804014b66f12ff0e07cfcf32db546f70adc7b6e9257f58ea93f0

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