Malicious PDF — malware analysis report

Static analysis result for SHA-256 6c55877b2c4c27ce…

MALICIOUS

PDF

38.3 KB Created: 2020-08-07 08:25:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 363416440adb243b778aac6fbd0b0258 SHA-1: 37624b0e9ec7efffcfc31505b4dcb3dfd9267f9b SHA-256: 6c55877b2c4c27ce036b0ab52701957f9a6c1a235dea1e14f95c13c66d30c088
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple embedded links, with a primary link to `https://ttraff.ru/pify?keyword=bonhomme+allumette+pdf`, identified as a malicious redirector. The document body and heuristics indicate a tactic of linking to numerous PDFs, likely to manipulate search engine results and lure users to malicious infrastructure. The ML classifier strongly supports the malicious nature of this PDF.

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=bonhomme+allumette+pdf In PDF document text
    • http://files.footballinmyblood.com/uploads/1/3/0/7/130740051/722c1.pdfIn PDF document text
    • http://files.exsanguinationsignet.com/uploads/1/3/2/7/132712483/bogululuvaxafogime.pdfIn PDF document text
    • http://files.tobeman.net/uploads/1/3/0/8/130813887/35ff2d7.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/1/0428/2220/5607/files/balanceamento_de_equaes_redox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8358/5949/files/accidente_de_trabajo_imss.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6523/5866/files/ffxi_how_to_change_screen_resolution.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6162/2437/files/textbook_of_medicinal_chemistry_alagarsamy_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0655/8359/files/boxikefixumiwijopoja.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2036/1629/files/zygmunt_bauman_liquid_love.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7183/1193/files/92161457704.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8455/4135/files/rajorejilemelon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9520/3745/files/51472832071.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3279/5541/files/93182058308.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4742/0066/files/32756944955.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000059d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x59D2 5056 bytes
SHA-256: 0477e921f1469dd00855a1714f0465c2a9d0ebbe3629d817cad13d717e25cd44
font_01_sfnt_off00006ae5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6AE5 9864 bytes
SHA-256: 8a1dbd47377aea1f429bd52a01ed274934a0121e44c47fd970a141f0e71aaa1b

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