PDF malware analysis — malicious · d3e931b5a8b6f258

MALICIOUS

PDF

78.4 KB Created: 2022-04-09 22:15:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-21

MD5: d6d9ab731d08ce6a4d65985274d5d1f2 SHA-1: 3a79470bc3699eba265a1a94ff291995d16eeafc SHA-256: d3e931b5a8b6f258efb44fc1941078fee8329c2ea8ef37738a49c984d0e6aa23

206 Risk Score

Machine Learning

Nyx PDF Classifier malicious score 0.9998

Heuristics 7

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

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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.
Malformed active-content stream length medium PDF_MALFORMED_EXPLOIT_STREAM_LENGTH

A PDF stream that carries active/exploit-looking content has a declared /Length that does not match the recovered stream body. Malformed stream boundaries and length mismatches are common parser-evasion/supporting evidence around Reader exploit streams.
Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM

Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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://podar.co.za/YmrXLWy8?keyword=free%20parkour%20gyms%20near%20me PDF link annotation
- https://sezowizubuv.weebly.com/uploads/1/3/0/8/130874308/zelirun-tifepeju-wegasefefoteti.pdfIn PDF document text
- http://kovofilm.cz/userfiles/file/94477088145.pdfIn PDF document text
- https://tojuseviru.weebly.com/uploads/1/3/4/5/134513446/vaxolibaja.pdfIn PDF document text
- https://lefamadagizid.weebly.com/uploads/1/3/4/7/134704745/4df04beef5d.pdfIn PDF document text
- http://www.dean-cpa.com/files/adminpic/file/68588473778.pdfIn PDF document text
- https://learnrkb.jugalbandiresearch.com/ckfinder/userfiles/files/65321017979.pdfIn PDF document text
- https://teduzagegoxow.weebly.com/uploads/1/3/4/4/134400331/307fb6e.pdfIn PDF document text
- http://kleinschadenexperte.de/userfiles/file/39136147058.pdfIn PDF document text
- http://bezpiecznamlodosc.org/files/file/68376286719.pdfIn PDF document text
- https://mifopezuzata.weebly.com/uploads/1/3/4/4/134484464/3502452.pdfIn PDF document text
- http://terray.sk/ckeditor/kcfinder/userfiles/files/64064835589.pdfIn PDF document text
- https://citronel.com/userfiles/files/satevibojisam.pdfIn PDF document text
- https://collinite.pl/userfiles/file/siwoparujujufo.pdfIn PDF document text
- http://www.farmaciapenil.es/userfiles/files/ligedijixu.pdfIn PDF document text
- https://ntct-dz.com/ckfinder/userfiles/files/29723857247.pdfIn PDF document text
- http://taptigrihnirman.com/singhania/downloads/file/suzugekemediwijelisubojik.pdfIn PDF document text
- https://tkpmission.org/wp-content/plugins/formcraft/file-upload/server/content/files/16233887d1305a---60210150742.pdfIn PDF document text
- http://evevoyance.fr/adh/.-/file/faresixasomipuvalojetu.pdfIn PDF document text
- https://transmar.biz/ckfinder/userfiles/files/buxoj.pdfIn PDF document text
- http://www.barczyk.plwww.sgpm.krakow.pl/aanewsysn/kcfinder/upload/files/gamobugelivupugusisir.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://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000cc74.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xCC74	17844 bytes
SHA-256: `0633dade81f4dd707d333846fcd56288172f0b12bd96ec58e07ad02b096c0fbd`
`font_01_sfnt_off0000fb5d.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xFB5D	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`
`font_02_sfnt_off00011374.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x11374	10640 bytes
SHA-256: `d0b7e18fe472311a1247a5fadf9521258e5eceafcc4038bdc59d62cbd0b65805`

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