PDF malware analysis — malicious · 4e322acccb6e4d0d

MALICIOUS

PDF

48.6 KB Created: 2020-10-23 02:52:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-20

MD5: a4cf8203d2ba4482a501fe756f2044a0 SHA-1: fb0fc29c73dfae97b0606ed67e0e759fc987add4 SHA-256: 4e322acccb6e4d0d99760b03adad9b3173c9fecc56b465eff2d26eb612847d1b

194 Risk Score

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://cctraff.ru/wb?keyword=solving%20quadratics%20test%20pdf In PDF document text
- https://cdn-cms.f-static.net/uploads/4383930/normal_5f8c9c746866e.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4375083/normal_5f920f2c0ea0e.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4382614/normal_5f8f173458507.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4367289/normal_5f8a5beb35cad.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4369802/normal_5f8cb1a37ef83.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4382770/normal_5f8ba79cabf74.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4385863/normal_5f8e4de2062a4.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4366989/normal_5f874e74ba6fb.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://s3.amazonaws.com/donarepemi/angioedema_hereditario_diagnostico.pdfIn PDF document text
- https://s3.amazonaws.com/mijedusovineti/89306004786.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/9268/0611/files/famapowarole.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0501/8304/5293/files/rarumegegevemilusiw.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/4432/1945/files/im_going_down_song.pdfIn PDF document text
- https://s3.amazonaws.com/tadovu/bizudekurovedanum.pdfIn PDF document text
- https://s3.amazonaws.com/fowikorejodi/gamevegitegagatu.pdfIn PDF document text
- https://s3.amazonaws.com/zuxadol/xulugoze.pdfIn PDF document text
- https://s3.amazonaws.com/fasanag/fazeligukimegasepuvu.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/d219baa3-f7b8-4e90-817c-5a11a4656df2/59913410912.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/7c3f8cca-3343-4b94-9350-4641fa70878f/fly_girls_full_movie.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 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00006f10.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6F10	5496 bytes
SHA-256: `5589dea439adfac736262075e379b4647401066722d25110b952b90aef6c9170`
`font_01_sfnt_off000081cd.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x81CD	11260 bytes
SHA-256: `074329e46f56008fbbabb33f59883ef4ca413b0996e2094db34528f5f8b7dbdd`
`font_02_sfnt_off0000a741.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xA741	4324 bytes
SHA-256: `ad623bc7c681097dfa1224999cf6cc6072d3ca9a137655dc1129b0261f0b357c`

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