Malicious PDF — malware analysis report

Static analysis result for SHA-256 2996560961ed538f…

MALICIOUS

PDF

36.2 KB Created: 2020-08-27 16:03:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6d92d10fde5915ae05eb4daadb5f8fa0 SHA-1: 85d6dd095c6f3407857a50a33961ff7ecdf67e52 SHA-256: 2996560961ed538f6d6f293d51ee973d0f6f959f5abb7f12ec7b1434e633c918
194 Risk Score

Malware Insights

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

The PDF file was flagged as a malicious redirector and a link farm, indicating its primary purpose is to distribute malicious content. It contains numerous embedded URLs, with the most suspicious being https://ttraff.ru/pify?keyword=%25C3%25BCstel+fonksiyon+t%25C3%25BCrev, which is linked to known malicious infrastructure. The document body itself is heavily obfuscated and contains a mix of text and URLs, further supporting the malicious intent.

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=%25C3%25BCstel+fonksiyon+t%25C3%25BCrev In PDF document text
    • http://zujiri.everydaywithautism.com/uploads/1/3/2/8/132816066/2806612.pdfIn PDF document text
    • http://files.magicaladventuresawait.com/uploads/1/3/1/3/131398598/a27e129.pdfIn PDF document text
    • http://files.jenkinspng.com/uploads/1/3/1/3/131398091/8007320.pdfIn PDF document text
    • http://files.sweetsbybrandy.com/uploads/1/3/2/6/132681985/55d4ef8a65.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/1/0430/8067/9577/files/mean_median_mode_math.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8099/7269/files/11941545961.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9757/0980/files/gogekebizokibigugosupo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4815/7859/files/balidikut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6925/0463/files/kibeluzix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5778/9593/files/87919355190.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1651/0873/files/bagezujibulonot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7794/9848/files/grievance_letter_template_non_payment_of_wages.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9276/2017/files/vinatugajefusi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8056/3350/files/67650856964.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8320/9633/files/73310206854.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4130/8319/files/7_dwarfs_song.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9690/6659/files/maharashtra_state_information_in_marathi_language.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 2

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_off00004e6a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4E6A 4912 bytes
SHA-256: 7194d6d1ada41eb74e18cb4122d431d64ab586d0218d8c100cb3069eab8e320a
font_01_sfnt_off00005f0a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F0A 11396 bytes
SHA-256: 0e4888dead7b544177aaa04c35ea94300b968102776582194da3df09275d1cdc

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