Malicious PDF — malware analysis report

Static analysis result for SHA-256 35765b813cc211e1…

MALICIOUS

PDF

49.1 KB Created: 2020-08-22 04:47:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a26191825c1b733d0dec7736699ca22e SHA-1: 65d2ba55cd8cd1642acd0985a11c6ba35e01b347 SHA-256: 35765b813cc211e1f4157ef9fa7c3e030d306ea9a5c2668c46abfe09702f4531
194 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, with a critical heuristic firing indicating a malicious redirector link to 'ttraff.ru'. Another critical heuristic identified a PDF link farm, with many links pointing to Shopify domains. The ML classifier also flagged this PDF with high confidence. The presence of numerous links suggests a delivery mechanism for malicious content, likely leading to further compromise.

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=lagu+opening+boukenger In PDF document text
    • http://files.canyons-ea.org/uploads/1/3/0/7/130775952/gituwuwefi-bogav-kulig.pdfIn PDF document text
    • http://duloj.labcharter-pto.com/uploads/1/3/1/4/131406821/838d70f69030.pdfIn PDF document text
    • http://files.thecanningtable.com/uploads/1/3/1/6/131636725/vujoxuboj-lonifiwug.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/1/0427/8976/5279/files/video_ad_script_template.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0334/6078/files/fawopalejunevekik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2865/1938/files/59396108736.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9513/7187/files/rapeloxajerimutatedigun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4704/2715/files/ambulance_care_essentials.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1312/8871/files/74740974034.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2230/0822/files/how_to_make_crack.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2439/2087/files/18811456725.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/39858795743.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 3

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_off00006383.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6383 10096 bytes
SHA-256: 749178ada359c1c81f6b5c10f47f36148bdd2bd8036a0e2c884b7b93ad9ac5bf
font_01_sfnt_off000084e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x84E1 4924 bytes
SHA-256: 5519b9899f1b6d627e5fdb9474a673e6f09c638d74be9067f771adbdf8a58051
font_02_sfnt_off000095b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x95B3 9896 bytes
SHA-256: 232bd557c3559cfd2b1eb33a609074475fc40a1135acd5fb439d774085b8538f

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