Malicious PDF — malware analysis report

Static analysis result for SHA-256 df6c07cdfad1e40c…

MALICIOUS

PDF

61.9 KB Created: 2020-08-24 10:49:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d0153714f0335a1e61e8df04ec204757 SHA-1: 4253bbea2c915067b0016c7001c16d4d88ec2567 SHA-256: df6c07cdfad1e40c1503e090f69585565c33469f0f0a70702cdd9fb6492e6a1b
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains multiple heuristics indicating it's a malicious redirector and link farm, designed to lead users to potentially harmful content. The embedded URL `https://ttraff.ru/pify?keyword=aparato+digestivo+aves+pdf` is flagged as a known malicious redirector. The document body, though heavily obfuscated, contains this URL, suggesting it's the primary lure. 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=aparato+digestivo+aves+pdf In PDF document text
    • http://laxun.doubledpicards.com/uploads/1/3/1/4/131453870/fixun_nojiketiwelibim_taxesegani_roxigotu.pdfIn PDF document text
    • http://files.gordonptandwellness.com/uploads/1/3/0/8/130813888/rakajulewud-rebok-roxapowugifij-lupema.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/1/0433/0687/7080/files/pamuzinesikajojefex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1241/5897/files/tijimuvogutovupigo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5326/0700/files/blue_mountain_state_season_1_720p.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6090/4604/files/new_riven_skin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/54344474436.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9865/1288/files/66092915217.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9966/9151/files/88238189205.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8079/4790/files/17036686786.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1656/8482/files/kenidekiwakubimis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9164/7894/files/malidelakezejugin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1214/5823/files/57492589274.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000930b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x930B 5228 bytes
SHA-256: 353a8aed845d82d85c0875890cb36b2a4bc8587a025d24dded68705335449a8f
font_01_sfnt_off0000a4ec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA4EC 15488 bytes
SHA-256: 3acea096ba0ba4dd67052e8d9f12ca39c1e6972e33d134968e0e03a546c943ab
font_02_sfnt_off0000d3fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD3FE 16132 bytes
SHA-256: 43e84046d57c5d8edad47de9228ce36feb53c5e515436c294a71041590f3a3a6

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