PDF malware analysis — malicious · a8c69f8129ff5873

MALICIOUS

PDF

42.3 KB Created: 2020-10-29 16:01:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10

MD5: 3ce7574e2bd1415da994d01845282a8b SHA-1: daa808710781276d755e3661883bcaebf6db9b32 SHA-256: a8c69f8129ff5873ca3698d3cff3abece36e3655f51ec0d43fe64b5c4b80d2a3

134 Risk Score

Machine Learning

Nyx PDF Classifier malicious score 0.9999

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.
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://cctraff.ru/strik?keyword=the+things+they+carried+sparknotes+the+man+i+killed In PDF document text
- https://rutobugexamaxip.weebly.com/uploads/1/3/4/5/134508198/pipewib_wefudil.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4383699/normal_5f8f234d24f5e.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4409425/normal_5f9426a4da0c7.pdfIn PDF document text
- https://lenimupet.weebly.com/uploads/1/3/4/0/134013040/xipavotaxa.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4373522/normal_5f8a262401607.pdfIn PDF document text
- https://manuxemewawi.weebly.com/uploads/1/3/4/4/134443751/getetawasadelix.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/peveziwoguxuzam/raise_boring_machine.pdfIn PDF document text
- https://s3.amazonaws.com/zesotat/ion_demi_permanent_hair_color_chrome.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.

Filename	Kind	Source	Size
`font_00_sfnt_off000067a5.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x67A5	5604 bytes
SHA-256: `114c923e4b4d8f20331ae907ba13a13dc882be4ecbfbbbfdea4156db64bb3fbf`
`font_01_sfnt_off00007a96.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7A96	9880 bytes
SHA-256: `caa57ee2355d74ab41bb50c6ba24e6a61d1e3100fe4c324a894b640b5ee65ca5`

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