PDF malware analysis — malicious · 06f2c689a25bd177

MALICIOUS

PDF

78.8 KB Created: 2021-04-05 19:16:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-20

MD5: f2511a552ba028cf1f8e33eec2cc16a8 SHA-1: 2276e300f8419aba2d04103168d7dca3cce607c6 SHA-256: 06f2c689a25bd1771d0fcfdbbae1c25a81a9b9430ebb2a3cc2c4a92042997911

126 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as a phishing trojan. The document contains numerous external URIs and is described as a link farm on disposable hosting, indicating a likely attempt to direct users to malicious websites. The presence of embedded URLs further supports this malicious intent.

Machine Learning

Nyx PDF Classifier malicious score 0.9967

Heuristics 5

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 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://baarspo.ru/strik?utm_term=the+aleph+in+the+mirror+page+37 PDF link annotation
- http://sixesijilolun.mywebcommunity.org/what_navy_seal_training_taught_me.pdfIn PDF document text
- http://nunovoxiwanafuz.getenjoyment.net/14568136354.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4379046/normal_604d1a5c91f37.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4412761/normal_60185bb7c7a9f.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4469358/normal_60462a9b6b9c1.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4409417/normal_605efadfc1d49.pdfIn PDF document text
- http://goods-amzon.com/adventure_games_free_for_laptop10xl1.pdfIn PDF document text
- http://xedeporib.medianewsonline.com/harry_potter_collection_books_used.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4416302/normal_5fd0fdaf5f9e8.pdfIn PDF document text
- http://pidawudimo.scienceontheweb.net/94657163192.pdfIn PDF document text
- http://idealica-italiaofficial.site/63141016122mpfsx.pdfIn PDF document text
- http://beremoter.online/vumubozeviw8gcrr.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://dusijilesa.rf.gd/naruto_shippuden_manga_download.pdfIn PDF document text
- https://f50ece36-1901-4a7b-9396-968a400df7f4.filesusr.com/ugd/3ecb95_8d547f540f2b4693840b843d846b1861.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/bifadiwuwileji/wamowutuwizo.pdfIn PDF document text
- https://s3.amazonaws.com/zagapaxa/video_dari_instagram_hd.pdfIn PDF document text
- https://7a48fde5-f9d1-4ce4-84a2-8b156d245d18.filesusr.com/ugd/8127dd_822b211fcf3c4a20ad7684dcc7702cf8.pdf?index=trueIn PDF document text
- http://sogirexulurika.rf.gd/construction_company_profile_malaysia.pdfIn PDF document text
- https://s3.amazonaws.com/limewub/blue_cross_blue_shield_federal_reimbursement_form.pdfIn PDF document text
- http://visunes.myartsonline.com/96287014278.pdfIn PDF document text
- https://0e627107-309b-4451-a84d-e7064c41fccd.filesusr.com/ugd/04c368_571e828647e3465684432c028e30ba5d.pdf?index=trueIn PDF document text
- https://8eefcaf3-52f5-4123-8be5-b1f0aaeea45e.filesusr.com/ugd/1d3654_259ebc45875b4086b3e45e971a26ca86.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/dinisemowoge/53297824510.pdfIn PDF document text
- https://s3.amazonaws.com/wonumafubij/xukajuzutajodemozuxomas.pdfIn PDF document text
- http://refaruzevogot.epizy.com/rokabojamowepoba.pdfIn PDF document text
- https://de315c38-daa2-4293-b666-e554ba9b7d65.filesusr.com/ugd/564d2e_398d6dab3f514a05a3d8bb019800c000.pdf?index=trueIn 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_off0000f72c.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF72C	5248 bytes
SHA-256: `2b121022b86c131f344ecc6d0ca72a61c935c495753a1e49356bbff940781ee2`
`font_01_sfnt_off000108e7.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x108E7	10752 bytes
SHA-256: `008358e5e1a92a1c9887547b2e108f57f42541726bc678cc6c4ef97f1e2fab1b`

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