PDF malware analysis — malicious · 2618e742147e9c65

MALICIOUS

PDF

72.4 KB Created: 2021-04-26 03:57:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: d3239e008414428e0a3af159012288bb SHA-1: b110f46742ed92adff6ba7073d66f50379c149f7 SHA-256: 2618e742147e9c65306d21e6b9d9120f26a1ebc33aa7e8cf9de0a0cde5f28fec

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, which is likely used to host a malicious payload or redirect to a phishing site. The document body, though heavily obfuscated, suggests a lure related to citation formats, which is a common tactic for phishing.

Machine Learning

Nyx PDF Classifier malicious score 0.9997

Heuristics 4

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

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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://xezojetit.ru/strik?utm_term=how+to+cite+electronic+sources+in+apa+format
- http://vukifaralefer.iblogger.org/89237778311.pdf
- http://899themes-demo.ru/65500250748rdme0.pdf
- http://parralax.net/95010234213ft0pc.pdf
- https://cdn.sqhk.co/pekotegafod/rPjdgeV/telugu_calendar_august_2020.pdf
- http://bionatur.space/19671360732l7y8e.pdf
- https://cdn.sqhk.co/xewumoxu/7kihhb6/laravel_use_carbon_in_blade_template.pdf
- http://mailedflkf.site/rilipowofuc62g.pdf
- https://cdn.sqhk.co/businaxidare/k6H7igd/roblox_download_free_mac.pdf
- https://cdn.sqhk.co/lomotutuwe/hcruugO/28561355666.pdf
- http://furniture21.online/bella_casa_rainbow_double_bed_sheetyc3k8.pdf
- https://cdn.sqhk.co/vefusujix/jdij6pM/amazon_kindle_books_free_romance.pdf
- https://cdn.sqhk.co/vexedobasof/HbhfEid/infographics_illustrator_templates.pdf
- http://lerob.info/platform_as_a_service_business_modelqffrl.pdf
- http://bilet-pdd.site/sidopunawefizijew5180s.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- http://bukulifuxevet.rf.gd/43057190783.pdf
- http://gamutazuzores.epizy.com/odisha_govt_calendar_2015.pdf
- http://numebazo.rf.gd/cellulose_acetate_sheet_suppliers.pdf
- http://dejosabo.epizy.com/american_heart_association_blood_pressure_guide.pdf
- http://xojixitutatafu.epizy.com/aha_heart_failure_guidelines_2013_executive_summary.pdf
- http://gilebufamefaf.rf.gd/41360095617.pdf
- http://tiriburud.rf.gd/26858934216.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000df21.bin` `20b60282a076c43d6561c20615914a922b2c44d461bf35f3399c5c34bfe4714d`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xDF21	5212 bytes
`font_01_sfnt_off0000f0db.bin` `405a68f2a1664049ae4089244a4763c70809415b633e1d1b85f7743f676fd086`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF0DB	10508 bytes

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