Malicious PDF — malware analysis report

Static analysis result for SHA-256 55696b6c2746871f…

MALICIOUS

PDF

45.9 KB Created: 2020-08-10 20:43:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 02b9772c808cdefacca99f6dbcf849d3 SHA-1: 65113f60b8c26c687112447bbb1e6fa6e081c30b SHA-256: 55696b6c2746871fbdb47f29243ac89789130b553d5cbf06fb2b4fa9417fee42
194 Risk Score

Malware Insights

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

The PDF document exhibits characteristics of a link farm, embedding a large number of external URLs. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' specifically flags a URL pointing to known malicious redirector infrastructure, suggesting the intent is to lead users to harmful sites. The ML classifier also strongly indicates maliciousness. No scripts were extracted, but the sheer volume of links and the presence of a malicious redirector strongly suggest a phishing or malware distribution attempt.

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=kandungan+kimia+daun+belimbing+wuluh+pdf In PDF document text
    • http://files.spinetingle.co.uk/uploads/1/3/1/4/131437967/7146643.pdfIn PDF document text
    • http://files.boveslab.com/uploads/1/3/1/3/131381679/d24e14b5cf9.pdfIn PDF document text
    • http://files.cumbriasculptors.com/uploads/1/3/0/8/130874110/nojotekesowun.pdfIn PDF document text
    • http://files.theglasgowgroup.org/uploads/1/3/1/4/131483138/1603371.pdfIn PDF document text
    • http://files.bibisnelderwaardbrion.com/uploads/1/3/0/7/130775953/cef1df54fb4d.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/1/0430/5453/0709/files/jutirepusasagatowo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6975/1967/files/gaxogizoga.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0472/3349/files/5379649459.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4818/0634/files/98585314430.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4583/8248/files/como_adestrar_um_cachorro_filhote.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7128/4135/files/zosatuv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6559/0438/files/27126806328.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5865/7430/files/noxifi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/1346/7286/files/ruwasebevetajikebomofu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4462/5822/files/wefubapefagejafejugare.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0485/3406/files/84656745429.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5004/9446/files/jifumixakameviw.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 7

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_off000075f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75F0 5444 bytes
SHA-256: 7e971d88c1ee8e46196aa05455d3363d1db35b7317ada8e6e4ce4a15e0fead77
font_01_sfnt_off00008864.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8864 10000 bytes
SHA-256: e08445e3b7d40a8813a9e905bc64d1eb683c1613a41de1e04b58dbb8c92274ac

Open this report in the interactive analyzer, or submit your own file for analysis.