PDF malware analysis — malicious · c328955e28ff1cdf

MALICIOUS

PDF

69.1 KB Created: 2021-02-28 12:51:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25

MD5: 634218311af5a58cc52b8d3d84e736c4 SHA-1: e7fccab22f7904a0b3750908d80157d19bef872a SHA-256: c328955e28ff1cdfa2ff100038ef46f96992dee5661649c6807aad7012168de5

136 Risk Score

Machine Learning

Nyx PDF Classifier malicious score 0.9995

Heuristics 5

ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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.
External URI info PDF_URI

PDF contains an external URL action
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://dugedepap.ru/award?keyword=ilive+sound+bar+ratings PDF link annotation
- https://cdn.sqhk.co/wifinalimow/dig84jd/9191105146.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4446774/normal_60060febdb6c5.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4459629/normal_603b12f1dc8c2.pdfIn PDF document text
- http://nubolutlion.xyz/samsung_bd-p1600_blu-ray_player_manualjdtre.pdfIn PDF document text
- https://motanufogok.weebly.com/uploads/1/3/1/3/131381166/3782922.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4478667/normal_603abd866abc7.pdfIn PDF document text
- http://govnososal.xyz/the_jesus_prayer_in_latinzw48u.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4379038/normal_5fc5a4452d7df.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4425229/normal_5ffb8c10b1ad5.pdfIn PDF document text
- https://cdn.sqhk.co/susorajin/f7pejb1/skyblock_map_1._14_1_download_1.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000d325.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD325	5132 bytes
SHA-256: `774c6567789875cb4ee901eecc62c9fc9d477aa2a6a904ecd4010b11c0887cc3`
`font_01_sfnt_off0000e4a7.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE4A7	10492 bytes
SHA-256: `7711ac8bd3ab45a4e26ceb3b1034c06e9f5448a324e79584aa9456b3a636781e`

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