PDF malware analysis — malicious · 02e1685d38f00fd7

MALICIOUS

PDF

90.0 KB Created: 2021-03-14 15:10:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26

MD5: 1621c2161b014f709e5b1baa0965c9b2 SHA-1: 245542b8f980e5ffb4a2bd833c1e25594e57209b SHA-256: 02e1685d38f00fd74607956a3e9a2b8104eb37fcc75a06ab802b386dcf0313f5

126 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file was flagged by multiple heuristics, including ClamAV and an ML classifier, as malicious. It contains numerous embedded URLs, many pointing to disposable hosting, suggesting a link farm designed to redirect users to malicious content. The document body, though heavily obfuscated, appears to be a lure related to forklift training requirements, likely intended to trick users into clicking the malicious links.

Machine Learning

Nyx PDF Classifier malicious score 0.9991

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://nipisod.ru/strik?utm_term=what+are+osha+requirements+for+forklift+training PDF link annotation
- http://negomusedo.iblogger.org/is_it_bad_to_marry_your_second_cousin.pdfIn PDF document text
- http://coloradocustomelectric.com/ronitunupelelolulo9w7mn.pdfIn PDF document text
- https://cdn.sqhk.co/tinulafi/jbXgigd/gacha_life_studio_wallpaper_hd_2021.pdfIn PDF document text
- http://getplafond.xyz/batiketazigitu2yi3w.pdfIn PDF document text
- https://cdn.sqhk.co/mujowofapubi/hlYxiaz/29521032984.pdfIn PDF document text
- https://cdn.sqhk.co/rosomugimo/XnyR002/abba_greatest_hits_1976_cd.pdfIn PDF document text
- http://talakam.space/chalkboard_texture_freepp5u3.pdfIn PDF document text
- https://cdn.sqhk.co/kubabulukod/gqihEhb/ruzazetofasofun.pdfIn PDF document text
- http://salukapebuke.iblogger.org/hogs_back_brewery_tour_guide.pdfIn PDF document text
- http://5coupons.info/segment_addition_postulate_worksheet_answer_keyloadd.pdfIn PDF document text
- http://xemuzaxu.22web.org/springer_journal_template_word.pdfIn PDF document text
- http://artdebug.site/poxufewalevepolepocsiwu.pdfIn PDF document text
- http://ru-order-687646765445.art/saxophone_dent_removal_toolsd6ulp.pdfIn PDF document text
- http://erethiztzj.space/focusrite_scarlett_18i8_manuale_italiano3f1pn.pdfIn PDF document text
- http://gatorama.space/jujelodosapssoi8.pdfIn PDF document text
- http://negozio50sconto.info/how_much_school_to_be_a_vet_assistantfia55.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://zofutigo.epizy.com/8712258535.pdfIn PDF document text
- http://totajenu.epizy.com/zutijax.pdfIn PDF document text
- https://32b33340-d9da-4ef7-b3bd-a0ac5134eb71.filesusr.com/ugd/adfa6f_5cab77aea5af488d8f76b6332c6a07e3.pdf?index=trueIn PDF document text
- https://0a37a3d5-a0bf-4e77-8ff5-6127fd08aefa.filesusr.com/ugd/6046c9_9575adeef39749898c1007510d5421d4.pdf?index=trueIn PDF document text
- https://3e1af3dc-cf37-4f58-935d-0a6065bc5ce9.filesusr.com/ugd/3ca236_e945353eac4f419bb4ec09dd7ab36cb2.pdf?index=trueIn PDF document text
- https://983c8978-ad56-435f-a988-47358aa6040c.filesusr.com/ugd/06a663_5816415df90a4a09b7f3919c06a7d083.pdf?index=trueIn PDF document text
- http://kavaxix.rf.gd/mazegepozugunojomajagetoj.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 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off000109cb.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x109CB	5384 bytes
SHA-256: `2905dcd4fe738b29b9394f5d58a151e7286ad313bb5bfcaf8d1a11ac7bf58426`
`font_01_sfnt_off00011c00.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x11C00	11404 bytes
SHA-256: `25f421fba82cba3dfe05e55ad5361d567a9148b97e51f44ebf8165e19c079f70`
`font_02_sfnt_off000142f8.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x142F8	16140 bytes
SHA-256: `3f83bbfb2e03141a9083badfb1da6e2b1773f9aa6b1ed8f30fc2d392a5ee3553`

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