Malicious PDF — malware analysis report

Static analysis result for SHA-256 9004eaa96d8b667c…

MALICIOUS

PDF

41.2 KB Created: 2020-10-31 09:40:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 2d5272eddc89baa69a0e5fcb6f28dc19 SHA-1: c13ace532899a3d37b4c4737acabf16f8b118efa SHA-256: 9004eaa96d8b667c5226fa6c7177c8753b622f29b9f1d38cca8eaf0c8eac151b
154 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains a large number of embedded URLs, forming a link farm. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' indicates that at least one of these URLs, 'https://ttraff.link/pify?keyword=ravenna+school+district+michigan', points to known malicious redirector infrastructure. The 'PDF_SEO_LINK_FARM' heuristic further confirms the presence of numerous external PDF links, suggesting an attempt to manipulate search engine results or distribute malicious content. No scripts were extracted, but the embedded URLs are the primary indicators of malicious activity.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • 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.link/pify?keyword=ravenna+school+district+michigan In PDF document text
    • https://jikeberu.weebly.com/uploads/1/3/1/8/131857846/7952897.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4422368/normal_5f9c356fcc9a7.pdfIn PDF document text
    • https://rugurujumififez.weebly.com/uploads/1/3/1/3/131384765/2770602.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379359/normal_5f9ab62f6e885.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/1/0505/1501/7898/files/90880918239.pdfIn PDF document text
    • https://s3.amazonaws.com/rizijubovapuk/rejuvurogevebagasupizika.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0493/0522/3327/files/63792936060.pdfIn PDF document text
    • https://s3.amazonaws.com/mijedusovineti/56960983394.pdfIn PDF document text
    • https://s3.amazonaws.com/fatisake/gumomuviselit.pdfIn PDF document text
    • https://s3.amazonaws.com/janodojivi/87672586994.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_off0000617c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x617C 5420 bytes
SHA-256: f52303b2e5616530751c5d0a746546694a881bf5570fad6322f4dd6e5fc65299
font_01_sfnt_off000073ca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x73CA 10668 bytes
SHA-256: c6b5d21278f96a918eccaadfab388e5e7dd4655a8c9c64f9f2f6069d2b08909a

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