Malicious PDF — malware analysis report

Static analysis result for SHA-256 38ee70e7cc332464…

MALICIOUS

PDF

45.8 KB Created: 2020-08-06 10:10:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 09b92c9f38257496aa07ec58ba6e002f SHA-1: dc6cc5020cb143a7cc563c010b8b9c6523c102ad SHA-256: 38ee70e7cc332464591bbd063e11081da49f35dda51d4dea9a441d144cd42acf
194 Risk Score

Malware Insights

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

The PDF contains a significant number of embedded links, with a critical heuristic firing for a malicious redirector. The primary malicious URL identified is https://ttraff.ru/pify?keyword=bobbin+lace+patterns+pdf, which is likely used to obscure the final malicious destination. The presence of a large link farm suggests an attempt to manipulate search engine results or distribute malicious content through seemingly benign documents. The ML classifier also strongly indicated maliciousness.

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=bobbin+lace+patterns+pdf In PDF document text
    • http://files.saltysirentradingco.org/uploads/1/3/0/7/130739951/7102795.pdfIn PDF document text
    • http://files.jonathanmitchell.co.uk/uploads/1/3/1/3/131381900/6138922.pdfIn PDF document text
    • http://files.kinesiologyandcounselling.com/uploads/1/3/0/7/130775786/jufile-tomij.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/1/0436/2380/9187/files/36665251747.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/3529/9738/files/blackstone_real_estate_fund.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7777/7061/files/apes_textbook.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9432/6949/files/11253987654.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2044/3045/files/89159389676.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5792/9623/files/final_fantasy_14_act.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/84302935330.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5106/5243/files/67928719068.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8191/5798/files/jaxuxetebexurata.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0917/0856/files/50562731522.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8115/2152/files/leetcode_number_of_islands.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3385/4101/files/45941814604.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
🗂 Part of campaign: peacecitysoaps.com 3 samples

Related samples 4

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_off000072d4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72D4 5336 bytes
SHA-256: 2f6158aad7f128819e57febc8d9952cab8b37ab86e3ebc5f0c4caeffc8181070
font_01_sfnt_off00008504.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8504 11080 bytes
SHA-256: 6f162f45d914a18edebdd65a8b2daa21f5bbd3879c0519b9823e189c632c18ac

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