Malicious PDF — malware analysis report

Static analysis result for SHA-256 72379faf2b62b85b…

MALICIOUS

PDF

39.6 KB Created: 2020-08-26 00:24:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 9d235bc62235c51f30026d62d94dbf0e SHA-1: 983c53ec9b0337c68948c310be016e0b2ee99537 SHA-256: 72379faf2b62b85bf3978b240d3f34475cc298d43a88a5ef453b033e0df8c0aa
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document contains a link farm designed to redirect users to malicious infrastructure, specifically identified as 'ttraff.cc'. The document body, though heavily obfuscated, contains the lure text 'Magical butter machine manual' and the malicious URL. The ML classifier strongly indicated maliciousness, and the presence of numerous external PDF links suggests a phishing or scam 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.cc/pify?keyword=magical+butter+machine+manual In PDF document text
    • http://files.astronomynz.org/uploads/1/3/2/6/132695629/kewemulawika_mizofuvavu_mozar_repokefoga.pdfIn PDF document text
    • http://files.michellemcdanielportfolio.com/uploads/1/3/1/4/131410479/gevegepapanedex.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/1/0428/0179/1132/files/vilisenolaxowuzovole.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9275/4076/files/vesoragel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1856/6306/files/buderus_logamax_plus_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0878/5565/files/67507763831.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5153/9861/files/48071690318.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3912/9751/files/physiology_book_ak_jain.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1320/0282/files/41452386722.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/669297692.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8990/3259/files/minitakewarerisuvali.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3939/0872/files/comparison_between_dna_and_rna.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_off00005e2a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E2A 5180 bytes
SHA-256: 3e0a193122dd562a2ca70864d1348a9554f143df5946af6f640fd2f0b57baf05
font_01_sfnt_off00006fa4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6FA4 10120 bytes
SHA-256: 49541d54b81079f1b3eaa3e86567917e15bd8ab56451f45cba144ad185107b34