Malicious PDF — malware analysis report

Static analysis result for SHA-256 902227cb0603220d…

MALICIOUS

PDF

40.3 KB Created: 2020-11-03 01:04:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-14
MD5: 4a28b5e69ea1021ecf12becf08861712 SHA-1: 36ac1b99b078b6fcffc4d73edb042baca4e29de1 SHA-256: 902227cb0603220d256ce773a4469fd0347ad897d9c9e273fbadd1e9752687b5
194 Risk Score

Malware Insights

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

The PDF contains a lure for 'Morkie puppies for sale near me' and embeds numerous links to other PDFs, indicating a likely SEO manipulation or link farm tactic. One critical heuristic identified a link to known malicious redirector infrastructure at 'https://ttraff.cc/123?keyword=morkie+puppies+for+sale+near+me'. The presence of many external PDF links suggests an attempt to distribute content or manipulate search engine rankings, potentially as a precursor to a phishing or malware delivery 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.cc/123?keyword=morkie+puppies+for+sale+near+me In PDF document text
    • https://ranuxibat.weebly.com/uploads/1/3/4/5/134595997/5424269.pdfIn PDF document text
    • https://korodaziso.weebly.com/uploads/1/3/0/7/130740443/9306334.pdfIn PDF document text
    • https://muwidewosavuli.weebly.com/uploads/1/3/4/4/134435377/fimadidovep.pdfIn PDF document text
    • https://xogexemufak.weebly.com/uploads/1/3/1/4/131437987/d1d3c9182.pdfIn PDF document text
    • https://gazesomudari.weebly.com/uploads/1/3/1/0/131070071/muviz_zomogofoxaxuf.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/tuzamada/rukaweda.pdfIn PDF document text
    • https://s3.amazonaws.com/tevigotu/98423286425.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0501/2737/2481/files/xexidine.pdfIn PDF document text
    • https://s3.amazonaws.com/lipekipuvenuji/27354551497.pdfIn PDF document text
    • https://s3.amazonaws.com/sigobija/doom_patrol_gerard_way.pdfIn PDF document text
    • https://s3.amazonaws.com/faluzotixupi/how_in_spanish_slang.pdfIn PDF document text
    • https://s3.amazonaws.com/purufiz/wulowinanexoxawe.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 8

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_off00005ee4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EE4 5116 bytes
SHA-256: 15b654fe0c42e36097ce2f9a13b40065afd6ba19d86d4094ad890018deb7a75f
font_01_sfnt_off00007045.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7045 10704 bytes
SHA-256: 3c420800a4a5c9732c422662d173ea0fac57f12746452ab451a8782407d89d51

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