PDF malware analysis — malicious · aa84d3944b77d432

MALICIOUS

PDF

70.3 KB Created: 2021-01-05 19:40:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-06

MD5: 09b59db2456d379e2565a12adddbbd26 SHA-1: 460598882a631080f46c85df6530cf6341d0a399 SHA-256: aa84d3944b77d43287ee41e699f494dbaa71e53c62be0ac7cc1b8022a6d97d94

136 Risk Score

Machine Learning

Nyx PDF Classifier malicious score 0.9971

Heuristics 5

ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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://trafffi.ru/wb?keyword=slither.%20io%20codes%202019%20ios PDF link annotation
- https://cdn.sqhk.co/pepitaji/csgcHgd/3_red_strawberry_ice_cream_rolls_youtube.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4375095/normal_5ff43075dd809.pdfIn PDF document text
- https://cdn.sqhk.co/sojetaji/VUPvDcl/check_my_computer_viruses.pdfIn PDF document text
- https://cdn.sqhk.co/bowewulaxam/khgiihi/putebilorobasowozamamuza.pdfIn PDF document text
- https://cdn.sqhk.co/tipefimex/ifjiMhh/vpn_private_internet_access_apple_tv.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/tigewibejageju/functionalist_theory_of_deviance.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/d630c929-03eb-41a4-bef1-2967fc3dc918/ascend_d10_kayak.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/bdb8a4cd-41e2-400c-a84b-171863c921b1/60513277036.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/335ae653-c31d-45fd-b4b2-723e236ef2d2/sasotakomozevewugurobibol.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_off0000d494.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD494	5432 bytes
SHA-256: `f87923e3a76f110f8be5e80ddfd8b5635ecfe7b34ba0724f8a590a91648d0d32`
`font_01_sfnt_off0000e70a.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE70A	10572 bytes
SHA-256: `18addb8c1c65857690f7424b32f656a542eea3d14ec8156e2a0e706e3986898c`

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