Malicious PDF — malware analysis report

Static analysis result for SHA-256 2cdc9e853cf8c6bd…

MALICIOUS

PDF

34.7 KB Created: 2020-08-22 13:03:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2354d702fc542311e07644466f41cf4e SHA-1: 1a13a5ac095dc05275bc3fe443b4ff26ecae4ef3 SHA-256: 2cdc9e853cf8c6bd074c43d9e78c7b690f3016e45a4445c53e836851af1bf51b
194 Risk Score

Malware Insights

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

The PDF contains a link that redirects to a known malicious URL, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though partially obfuscated, contains the same malicious URL and appears to be a lure related to song lyrics. The PDF_SEO_LINK_FARM heuristic indicates a large number of external links, suggesting a link farm for SEO manipulation or to distribute malicious content. The ML_NYX_PDF_MALICIOUS classifier strongly indicates 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=baana+kaathadi+songs++free In PDF document text
    • http://files.garykearns.com/uploads/1/3/1/4/131453870/zutovokupajeg-jirubop-puwusid-zigomuxor.pdfIn PDF document text
    • http://xuzova.berrycommunitychurch.org/uploads/1/3/1/4/131483281/e4ccb80.pdfIn PDF document text
    • http://rumalone.redroomonline.com/uploads/1/3/1/8/131856372/8161050.pdfIn PDF document text
    • https:///////httpsIn 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/1/0454/5613/0200/files/holland_code_test.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3799/0813/files/bible_stories_tagalog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3641/6936/files/81390324476.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4718/9670/files/sekudekusibexewetorux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8250/6647/files/autocad_presentation_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1312/8867/files/xevejikemugupadisa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5820/0725/files/god_bless_the_broken_road_sheet_music_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/7612/2779/files/zen_habits_book.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_off00004173.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4173 5252 bytes
SHA-256: 1c60de3b95decc4bc7ad84713552ed9a35823051a9e169b89b12ac0590e233a6
font_01_sfnt_off00005349.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5349 13320 bytes
SHA-256: 02b433a01f6dbcce3db26c3f082dd53c28ae467305db54f2675e042b97135a44

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