Malicious PDF — malware analysis report

Static analysis result for SHA-256 f51000cb91109ca4…

MALICIOUS

PDF

39.2 KB Created: 2020-08-17 04:58:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3e22bce0c1e9b91e18d0571d58d280ac SHA-1: f4cc4e235e25e166913603fa5d534e93e8d4a9af SHA-256: f51000cb91109ca4fbab51edc489d6057ca3464f2eebd346a5c24ca3ebf3b27c
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=land+lease+agreement+format+in+telugu'. This indicates the document's primary purpose is to redirect users to potentially harmful content. The document body, though partially corrupted, contains text related to 'land lease agreement format in telugu' and the malicious URL, reinforcing the lure. The presence of numerous other PDF links, many pointing to Shopify, suggests a link farm or SEO poisoning tactic to increase visibility of the 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.ru/pify?keyword=land+lease+agreement+format+in+telugu In PDF document text
    • http://files.candyandfriends.com/uploads/1/3/1/3/131384025/xolusaz.pdfIn PDF document text
    • http://files.acousticdesignstudios.com/uploads/1/3/1/4/131438439/bidizimorobajex.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/1/0431/6761/3087/files/picatrix_planetary_talismanic_magic.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9090/2166/files/42369013959.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2588/2518/files/rv_comfort_zc_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9166/5830/files/relala.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6150/1334/files/15592859141.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4478/9669/files/vuxeduvor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4184/0535/files/reported_speech_test_online.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2317/9677/files/76135684364.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2782/2749/files/tizumanigaribalusirebutaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8571/6901/files/candidiasis_oral_tratamiento_fluconazol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7764/0092/files/virowefebun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7751/6955/files/les_bonnes_pratiques_de_fabrication_des_mdicaments.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 5

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_off00005dd9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DD9 5168 bytes
SHA-256: fa02429be79585a15f8ac9a49ee70843894dd82a9084c0e85c2da2d84be980c9
font_01_sfnt_off00006f56.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F56 9712 bytes
SHA-256: 3c994caa9e5ef598ae0e7539fa5a48ec2222f8044c9292632dfbeb574834b954

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