Malicious PDF — malware analysis report

Static analysis result for SHA-256 afbe577991faa001…

MALICIOUS

PDF

50.9 KB Created: 2020-08-08 05:17:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d9b9112b3c86e020aa5e595d903f2b7e SHA-1: 9a5344b3803e68ebc60c8188dd2ed08125048296 SHA-256: afbe577991faa001c529cfe64db04ac5be8194a821b06f81cdf79e54e8b2a2ce
194 Risk Score

Malware Insights

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

The PDF document exhibits malicious characteristics, primarily through its extensive use of external links. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK indicates a direct link to known malicious redirector infrastructure at 'https://ttraff.ru/pify?keyword=facebook+analysis+report+morningstar+pdf'. Additionally, the PDF_SEO_LINK_FARM heuristic reveals a large number of links pointing to various PDF files hosted on platforms like Shopify, suggesting a coordinated effort to distribute content or lure users. The ML classifier strongly supports the malicious verdict.

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=facebook+analysis+report+morningstar+pdf In PDF document text
    • http://files.premiergymacademy.com/uploads/1/3/2/6/132681053/dobobopulo.pdfIn PDF document text
    • http://files.coldwatercreekranch.com/uploads/1/3/1/4/131406885/winofola.pdfIn PDF document text
    • http://nodevigi.octm.org/uploads/1/3/1/4/131437689/a291ef4ae14e3c.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/1/0440/7253/4166/files/72330247473.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6350/1222/files/78541065121.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0686/8126/files/sukududenosemis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1244/7652/files/47303079316.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/6599/4392/files/autogenic_and_allogenic_succession.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9984/6824/files/html_img_tag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3495/9256/files/principles_of_business_information_systems_3rd_edition_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0443/0499/0364/files/bodine_b50.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xizujebekox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8581/6218/files/43301283610.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3672/8726/files/58065665107.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_off000086dd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x86DD 5736 bytes
SHA-256: 62f337c5e9dcd8d64c0854c12ef5db572c093546ace711f917ec68c5e81e4426
font_01_sfnt_off00009a5b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9A5B 10652 bytes
SHA-256: f6f786659f5af7a673b2ac9153133523cf02e4c6a4b75729611ce4c5e8391e68

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