Malicious PDF — malware analysis report

Static analysis result for SHA-256 32aa1629af4f9f8a…

MALICIOUS

PDF

44.2 KB Created: 2020-08-10 12:23:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8e8b97835085f8adb608d0b0b85da20b SHA-1: c312f7856bb6256124317b052205b1bda21b620d SHA-256: 32aa1629af4f9f8a9e0dbc43f9b9967147df113208eeb66c27dea252713782af
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a significant number of embedded links, with the primary redirector URL being https://ttraff.ru/pify?keyword=epidural+anaesthesia+pdf. This suggests a malicious intent, likely to manipulate search engine results or redirect users to harmful content. The presence of numerous other PDF links, many hosted on Shopify, indicates a link farm strategy. No scripts were extracted, and the document body is heavily obfuscated, limiting further analysis of the specific lure.

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=epidural+anaesthesia+pdf In PDF document text
    • http://files.westrivervalleyvet.com/uploads/1/3/1/1/131164067/xatotifa-xukalidifuv.pdfIn PDF document text
    • http://kosidim.dedhamcampfair.org/uploads/1/3/0/7/130775403/6568356.pdfIn PDF document text
    • http://forilefe.athenianenterprisesllc.com/uploads/1/3/0/7/130775971/5949578.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9474/6023/files/mozememolusasom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0709/0581/files/97607677757.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0454/8227/9062/files/how_to_read_balance_sheet_of_a_company.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7590/2363/files/wugimusagoki.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1728/0408/files/88244010034.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/28391359898.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7142/9015/files/beast_of_burden_tab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/72438278193.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1994/3579/files/98635407460.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7035/6637/files/14745105516.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6990/6844/files/28668237173.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/64989875230.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 1

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000633a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x633A 4860 bytes
SHA-256: 3b7e0ca454a17cde55f096e114712639a9c899245307652835186760ef07e817
font_01_sfnt_off000073b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x73B2 10068 bytes
SHA-256: 00396327c85e60c2a31548b7542ac736340ad2741a9a6033a79ffb498ca3ca9a
font_02_sfnt_off00009611.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9611 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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