PDF malware analysis — malicious · c5d631962df360b6

MALICIOUS

PDF

79.1 KB Created: 2022-04-11 10:12:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-27

MD5: a30a1a15d6ce3f682b1acfbfb1b5d609 SHA-1: d5440b672244564d9aeca2c715802485b06db52f SHA-256: c5d631962df360b69a687e365185fff9a2e9fb699756fe669c9be07de3184267

194 Risk Score

Machine Learning

Nyx PDF Classifier malicious score 0.9995

Heuristics 7

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

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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.
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.
Embedded JS stream low PDF_JS

PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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://loheb.co.za/YmrXLWy8?keyword=can%20salt%20water%20reduce%20belly%20fat PDF link annotation
- https://almudenafernandez.co/ckfinder/userfiles/Files/goleduruxubemuji.pdfIn PDF document text
- http://behtarinekhodetbash.com/files/files/51543885292.pdfIn PDF document text
- https://boxijapemisavar.weebly.com/uploads/1/3/0/8/130874030/ef24e98da6e25de.pdfIn PDF document text
- https://emotionalgift.youngzonejewelry.com/ckfinder/userfiles/files/metob.pdfIn PDF document text
- http://investmedic.com/app/webroot/assets/js/kcfinder/upload/files/jatoxos.pdfIn PDF document text
- https://wuvesemoni.weebly.com/uploads/1/3/4/3/134335409/ligoge_benomebotatale_maxowegirazaru.pdfIn PDF document text
- http://teusz.pl/UserFiles/file/xufewijizilufumo.pdfIn PDF document text
- https://hab.erdenet.mn/userfiles/files/65544297462.pdfIn PDF document text
- https://videtibap.weebly.com/uploads/1/3/2/6/132682663/42fdef6584720f.pdfIn PDF document text
- https://thermofriz.com/userfiles/file/25418736820.pdfIn PDF document text
- https://jositaloj.weebly.com/uploads/1/3/4/0/134042718/77f8111cd.pdfIn PDF document text
- http://www.jasolasia.com/image/upload/File/9329769612.pdfIn PDF document text
- https://suzagadagaxu.weebly.com/uploads/1/3/0/7/130775939/a0a6c95e69818ba.pdfIn PDF document text
- http://shortguycentral.com/ck_uploads/files/86394057137.pdfIn PDF document text
- https://desemezek.weebly.com/uploads/1/3/4/4/134458593/fitamiranumonufi.pdfIn PDF document text
- https://wanfutemple.urwaydesign.com/data/file/userfiles/files/13870264691.pdfIn PDF document text
- http://bebaldebaran.eu/userfiles/files/senapoxizo.pdfIn PDF document text
- http://ambvetesopo.eu/userfiles/files/pomexodumebupasalajo.pdfIn PDF document text
- https://www.jobswolf.com/app/webroot/kcfinder/upload/files/vujakivixetuzafo.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_off0000d19e.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD19E	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`
`font_01_sfnt_off0000e9b0.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE9B0	16660 bytes
SHA-256: `ced9d291fe4652d3ebf5e557525ee895730dbdc20ce4ab6c104beae9e602d01a`
`font_02_sfnt_off0001151c.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x1151C	10728 bytes
SHA-256: `24b2a369d7ddb6188961f7194c0c83421511e18f1e6e6fe7b3800fdef5ea533d`

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