Malicious PDF — malware analysis report

Static analysis result for SHA-256 d210b1171dd8c773…

MALICIOUS

PDF

48.2 KB Created: 2020-08-12 03:22:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0a0f5d173edd80cff11276928373b428 SHA-1: 22898911d66e7540952c13fce86a286e33518e6e SHA-256: d210b1171dd8c773acc31880da302d0696b5fb3ee0d69c38e91c63e262ba0a36
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 Malicious Link T1059.001 PowerShell

The PDF contains multiple embedded links, with a critical heuristic firing for a malicious redirector. The document body, though heavily obfuscated, contains a URL that appears to be part of a link farm designed to manipulate search engine results or direct users to malicious content. The primary malicious URL identified is https://ttraff.com/pify?keyword=define+social+psychology+pdf, which is flagged as a malicious redirector.

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.com/pify?keyword=define+social+psychology+pdf In PDF document text
    • http://megaxij.shesagogetter.net/uploads/1/3/0/7/130776760/998ae857a4d249.pdfIn PDF document text
    • http://xorivewi.natwellsupplements.co/uploads/1/3/2/8/132814930/dekusufekag.pdfIn PDF document text
    • http://files.radicalphilosophyassociation.org/uploads/1/3/1/8/131856356/xarerumuguk-xereva-wilekoginusugug-fufewudatusives.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/1/0429/8499/7025/files/51417114309.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/rinavupomun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8328/4132/files/39178780766.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/5689/3847/files/how_to_use_max_pro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9925/1097/files/kuwekarodulazisuxipuger.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6470/4665/files/ophthalmology_books_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5967/5293/files/vagigilujifu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9541/7237/files/10650862706.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7108/6492/files/mobil_atf_220_msds.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 1

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_off00007f16.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F16 5424 bytes
SHA-256: 2f19aad1462ca1dd9e6004e0830db61c390b093de0c486034810905e721a0d31
font_01_sfnt_off00009191.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9191 10112 bytes
SHA-256: 01a31814dffee8f39d11b3ae5147383301dd19eb2e7bb529581d94eb13221117

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