PDF malware analysis — malicious · 980ffe7d2af54318

MALICIOUS

PDF

67.4 KB Created: 2021-02-11 23:40:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10

MD5: 3a2343af0cc6530bbdfc03041d1a7596 SHA-1: eef344bd33b7dacd765fe80f5c28ecbc3831bffe SHA-256: 980ffe7d2af54318ebbd007a813722e2dddf3b04c6e0f3a5c920b3686f36b8e7

126 Risk Score

Machine Learning

Nyx PDF Classifier malicious score 0.9998

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
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://bologen.ru/wix?keyword=word+that+start+with+rex PDF link annotation
- https://cdn.sqhk.co/venitalobeni/ehdiaJa/nations_in_combat_1._3._2.pdfIn PDF document text
- https://vusexojepaxeva.weebly.com/uploads/1/3/4/0/134096357/26cd252445f7b.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4481527/normal_6024beed11f31.pdfIn PDF document text
- https://dodonixufaf.weebly.com/uploads/1/3/1/4/131453867/9256282.pdfIn PDF document text
- https://wepusiviji.weebly.com/uploads/1/3/4/6/134661614/7dfca4889.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4381735/normal_5fd7e76b3d8fc.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4489263/normal_60011379ad94f.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/lazesej/sofagivifuxetaxew.pdfIn PDF document text
- https://s3.amazonaws.com/jusagi/carrier_primeline_manual.pdfIn PDF document text
- http://tomabev.rf.gd/british_council_pronunciation_poem.pdfIn PDF document text
- http://bidexegope.epizy.com/blank_monthly_calendar_template_february_2019.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_off0000ca7b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xCA7B	5052 bytes
SHA-256: `780aed327b6e27194dbd31f015392109a659a7678a4a796a7e483935a320cd55`
`font_01_sfnt_off0000dbbd.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xDBBD	10996 bytes
SHA-256: `b4967311839a0670220b6372caf5f80c47fb38b29d758f4319bdf5b8dd981a7c`

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