Malicious PDF — malware analysis report

Static analysis result for SHA-256 fa8861d35a3266a0…

MALICIOUS

PDF

62.9 KB Created: 2020-08-13 22:57:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 74cecfb61a2bbebdde6a21e69e722c6a SHA-1: 400a80dee93734208bd48cf3d2647f7c8c9dc481 SHA-256: fa8861d35a3266a0d4fd9944b52fce3186b164843cb577c618b0816e263823a6
194 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with a critical heuristic firing indicating a 'PDF_SEO_LINK_FARM'. The primary malicious URL, 'https://ttraff.ru/pify?keyword=smithing+guide+rs+wiki', suggests a redirector. The document body, though heavily obfuscated, contains this URL and other Shopify-hosted PDF links, indicating a likely attempt to distribute content or redirect users to malicious sites through a link farm strategy.

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=smithing+guide+rs+wiki In PDF document text
    • http://files.charveypublications.com/uploads/1/3/0/8/130873708/1e979f53.pdfIn PDF document text
    • http://files.alicehjones.com/uploads/1/3/1/8/131856318/midilipewakeve-tivedolobiba-daxozifetetexu.pdfIn PDF document text
    • http://vowegarav.genprice.shop/uploads/1/3/1/3/131379789/dunuzuf.pdfIn PDF document text
    • http://files.bccupcakery.com/uploads/1/3/0/7/130738850/xonofikavunimuzisegu.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/1/0433/5727/4270/files/9484530315.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9793/9367/files/14175446438.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9408/1687/files/fosigel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1096/5147/files/juximosibenova.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8782/1984/files/wiguponozatewagolotoxux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5131/0488/files/wakokuxububavavuf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0378/8964/files/curso_de_arcgis_10._5.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5670/9288/files/attestation_d_hbergement_pour_visa_long_sejour.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/mulobovapu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4914/8828/files/binumedesosamapupuz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6807/0824/files/43284112941.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4953/3088/files/rivizipaledutitotub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0515/7282/files/cub_cadet_ltx_1045.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 6

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_off0000b31c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB31C 5256 bytes
SHA-256: 794318acff9908b18df93b476473c4e748e99c657c2811d6a76f4e8496479235
font_01_sfnt_off0000c4e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC4E6 13488 bytes
SHA-256: 4ee7908e0f1bd37ebfc45bc575477cc0bfbaabb86f2c0a2c5665af2bac5c5d93

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