Malicious PDF — malware analysis report

Static analysis result for SHA-256 32ac776469433ac3…

MALICIOUS

PDF

47.5 KB Created: 2020-08-25 10:09:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7c637761b91f9a796fcc717b083c0bd7 SHA-1: 4f5d7b0a81d95527e5e293aa8eabd36a52c6bd16 SHA-256: 32ac776469433ac3718e853389f2b15c71c9303c3dec9b1cc337a8b441a565d9
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 a link farm hosted on Shopify. One of these links, https://ttraff.ru/pify?keyword=hypothesis+test+excel+template, is identified as a malicious redirector. The document body, though heavily obfuscated, also contains this URL, suggesting the primary intent is to redirect the user to malicious infrastructure under the guise of providing an Excel template.

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=hypothesis+test+excel+template In PDF document text
    • http://files.msilaser.com/uploads/1/3/1/4/131453499/78959.pdfIn PDF document text
    • http://files.addressphonelist.com/uploads/1/3/1/6/131606284/8041f4f3fb11fef.pdfIn PDF document text
    • http://files.quadslikehalie.net/uploads/1/3/2/6/132695651/wusuzi.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/1/0431/9094/3902/files/jesus_bleibet_meine_freude_klavier_noten.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1802/5117/files/lotivepug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0808/2598/files/20102626134.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7738/6918/files/log_and_antilog_table_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6082/9087/files/2078644947.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2151/6448/files/53532919731.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0463/1166/9917/files/chipmunks_shoes_size_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0790/0835/files/65445177689.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6562/9077/files/electrocardiograma_2019.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3898/9718/files/piano_arpeggios_chart.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7016/0032/files/clinical_chemistry_marshall.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6097/7048/files/ruvosukof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/4349/9677/files/formative_assessment_meaning.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7692/7141/files/ctet_paper_1_syllabus_2020_download.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_off00007c04.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C04 5208 bytes
SHA-256: 8643bf73304ad84c943b35c06c2f05a7838e3657487d2a768b31b90975322bae
font_01_sfnt_off00008da5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8DA5 10460 bytes
SHA-256: d2840b602fc57b0797838ab1bb778fb5352e8d94c0b297c457ce201eaeebf38d