PDF malware analysis — malicious · 6991e8a9330d0618

MALICIOUS

PDF

165.8 KB Created: 2021-02-27 17:53:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23

MD5: 6519e8cb7711483f0572423776c20471 SHA-1: e8348bf03a7ac1b2534919d4bc4b6dc732eb0c23 SHA-256: 6991e8a9330d06184c4c5f806505f95bd5192fc105c9332bcee349df03438465

126 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains numerous embedded links, many pointing to disposable domains, and is flagged by ML classifiers and ClamAV as a phishing/malicious document. The document body, though heavily obfuscated, suggests a lure related to a "2014 honda accord owners manual", likely intended to trick users into clicking malicious links. The presence of external URIs and the link farm heuristic strongly indicate a phishing or redirection attempt.

Machine Learning

Nyx PDF Classifier malicious score 0.9968

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://resalured.ru/strik?utm_term=2014+honda+accord+owners+manual PDF link annotation
- https://cdn.sqhk.co/toxinize/jddwE9y/bozevifivutanuporipe.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4411250/normal_5ff4bc385e50d.pdfIn PDF document text
- https://cdn.sqhk.co/dusujukakal/iujojQ0/sumegono.pdfIn PDF document text
- http://lunatan.medianewsonline.com/journey_to_the_center_of_the_earth_book_reading_level.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4376600/normal_5ff76043bb445.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4388169/normal_600a98f3b7ca0.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4450139/normal_6021287203084.pdfIn PDF document text
- https://cdn.sqhk.co/luwagoma/ibHjeOg/terra_mystica_strategy_giants.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4379736/normal_6011b62a646f4.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4470228/normal_5ff59c9e0bd46.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4377120/normal_601b3717308dd.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4444378/normal_5fec0146421c1.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4451545/normal_602e43ecc2751.pdfIn PDF document text
- https://cdn.sqhk.co/tisorobew/he0BhhD/cycling_shops_toronto.pdfIn PDF document text
- http://xubanapirobula.mypressonline.com/88243151545.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://zitadufafasid.onlinewebshop.net/wizard_and_warriors_walkthrough.pdfIn PDF document text
- http://tiwatimab.atwebpages.com/55366748691.pdfIn PDF document text
- https://s3.amazonaws.com/libosokune/business_administration_major_in_financial_management_jobs.pdfIn PDF document text
- https://s3.amazonaws.com/metakibeme/31860187687.pdfIn PDF document text
- https://s3.amazonaws.com/ragejufa/fesesawonaniririxupukuti.pdfIn PDF document text
- https://s3.amazonaws.com/nilititonawafim/atheros_wifi_driver_installation_program.pdfIn PDF document text
- https://s3.amazonaws.com/bipovoromoj/wadejij.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
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00021900.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x21900	8140 bytes
SHA-256: `bf84dcfe6a82a345044e125ebf09d4cf61c0ed570449f6399ee7f7b037288882`
`font_01_sfnt_off000233de.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x233DE	5592 bytes
SHA-256: `0050e460810f81e57cc551421e9d7375d56436a5cd6a9da8e7f65888032e51c2`
`font_02_sfnt_off000246cb.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x246CB	14048 bytes
SHA-256: `9b666e53adb28d0110e27d8475a5690c31350f3545d732c031b41e2c7f54a9f3`
`font_03_sfnt_off00027336.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x27336	16104 bytes
SHA-256: `7d1282c0f203a24ff00c4f6b1bac26c10904e0b2b9e36cfa9a6a30c67d7a5557`

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