Malicious PDF — malware analysis report

Static analysis result for SHA-256 d4e280f00654962f…

MALICIOUS

PDF

48.2 KB Created: 2020-08-21 16:58:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f9657c4b7efd6c6ccebbeaa525509859 SHA-1: 6ff45a029215c80181977d794d277206d63ef73c SHA-256: d4e280f00654962f624289388e04cc90203c1b74864c4bb488ec093126a219f4
194 Risk Score

Malware Insights

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

This PDF file contains embedded links that point to a known malicious redirector, indicating a phishing or malicious content delivery attempt. The document body, though partially corrupted, includes the URL 'https://ttraff.ru/pify?keyword=stickers+for+laptops+free', which is flagged as malicious. The presence of numerous other links, many pointing to Shopify, suggests a link farm or SEO poisoning tactic to distribute malicious content. No scripts were extracted, but the PDF structure and malicious URL are strong indicators of malicious intent.

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=stickers+for+laptops+free In PDF document text
    • http://files.just-verandas.com/uploads/1/3/1/3/131379045/xobuxisedujus_wekabod.pdfIn PDF document text
    • http://vukep.carrollcountyfarmersmarket.org/uploads/1/3/1/0/131070197/bozudiwirebofodawid.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/1/0433/6222/2232/files/11032589802.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7120/1695/files/48393013056.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5466/0770/files/mipanaxomedabuke.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4417/5013/files/tijebanikobarojame.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9800/3874/files/lilalukelusukojefezev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9651/4461/files/67719094585.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2143/4005/files/37412457929.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3606/5435/files/74427610873.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7952/4759/files/remobim.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 8

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_off0000771b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x771B 5176 bytes
SHA-256: b9120a6d1e6d16a3e19c5e77c11ad3a9a1bd4ccdcf35ebc96ef5b32ad5fd1663
font_01_sfnt_off000088b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x88B9 1800 bytes
SHA-256: e9a5a1f6ed95b1e3669933bb00002ad32a1708c3e0b735191cad5e02368a6c7d
font_02_sfnt_off00009147.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9147 10252 bytes
SHA-256: 48dedaae2b5e6ed30151fb87ce2b0a1f8eb29aed5fdbe7c9ed43c5f61581a6d1

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