Malicious PDF — malware analysis report

Static analysis result for SHA-256 2dd8ba70478edf9f…

MALICIOUS

PDF

33.6 KB Created: 2020-08-19 01:39:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 26b21be7b7049e5be924ba555a4ecae2 SHA-1: 9392565a6191371fa79fc75079df89808b4e17e2 SHA-256: 2dd8ba70478edf9fcdd7e25c8bcdbd01f83c6f18c77e5584ee0eb81f65182924
194 Risk Score

Malware Insights

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

The PDF contains a link farm and a specific malicious redirector URL, indicating a phishing or scam attempt. The document body, though heavily obfuscated, contains the malicious URL and appears to be a lure for a song download. The ML classifier strongly supports the malicious nature of this PDF. No scripts were extracted, but the embedded malicious link is sufficient evidence of 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.cc/pify?keyword=new+sambalpuri+bhajan+dj+song In PDF document text
    • http://xekiza.nigelcrossan.com/uploads/1/3/2/6/132683014/nogimifitobi.pdfIn PDF document text
    • http://bizogetak.care-cornell.com/uploads/1/3/1/4/131438577/jivivonedotaxatodi.pdfIn PDF document text
    • http://files.southernprovisionsfw.com/uploads/1/3/2/7/132740204/369311.pdfIn PDF document text
    • http://files.wkmla.com/uploads/1/3/2/3/132303068/efc05683ce.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/1/0436/0955/5107/files/history_of_american_novel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6633/6167/files/tafitibopewu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2951/1835/files/73725513007.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3735/1323/files/wofadujejarubudepaboduw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9897/1038/files/49171884964.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2743/9526/files/91329176953.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0126/6851/files/38200966806.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7784/2582/files/22529673792.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2387/5746/files/pivafinaxenegikuxeviwim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6546/6270/files/array_shift_javascript.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 3

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_off00004511.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4511 5652 bytes
SHA-256: 6bc09eeb47f7760bd887dfcd8c1efc0ab04cf977ad9f7a5eb606517be66eb3af
font_01_sfnt_off0000582f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x582F 9924 bytes
SHA-256: 43ea051726807a76de60946d0661df89111368f85d31463ee1a14d64b34f3596

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