Malicious PDF — malware analysis report

Static analysis result for SHA-256 5db048952ede4462…

MALICIOUS

PDF

45.7 KB Created: 2020-08-19 19:29:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6074e034c90eb5480f6d697016ba1f4b SHA-1: 6eb91a7fc1cc9eb3ca45b5af286c349d0303f121 SHA-256: 5db048952ede4462c96003c729336355ab89be598d594ed437ce838ace472abf
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many of which point to a redirector service that ultimately leads to a malicious URL. The document body, though heavily obfuscated, contains text that appears to be a lure for downloading a PDF, specifically mentioning 'All animal scientific name list pdf'. The presence of a malicious redirector and a large number of external links suggests an attempt to drive traffic to malicious infrastructure, likely for phishing or malware distribution.

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=all+animal+scientific+name+list+pdf In PDF document text
    • http://files.wargamemodelsinohio.com/uploads/1/3/1/0/131070009/3863787.pdfIn PDF document text
    • http://files.stpatricksripon.com/uploads/1/3/1/3/131381539/4758867.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/1/0437/0844/8919/files/30918959716.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5346/6271/files/xabuludefowi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8619/8424/files/damejaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9573/6988/files/60211489697.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5130/0517/files/cbse_nic_in_newsite_attach_ds1218.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9373/7118/files/idsa_candidiasis_guidelines_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5580/7641/files/pivopolulojogewopida.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1575/6181/files/85768564306.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0215/7466/files/68864815541.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8691/3431/files/substance_abuse_and_dependence.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4093/1991/files/24614902761.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007579.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7579 5196 bytes
SHA-256: 0231d4dc2522b70dd9e5dde7fd6fc2ae2d521690e40649cd9f6cf2611ca80502
font_01_sfnt_off00008709.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8709 10120 bytes
SHA-256: 9c502a31896dc0f15c3949ffb9907a7d4a2a322533258e313c208c9bf30548c7