Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e270d29b41ff828…

MALICIOUS

PDF

80.7 KB Created: 2021-04-18 21:59:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-20
MD5: d3a4b5710eb0a148b4e6deaa5f3ba4e3 SHA-1: 22636f6a4a6ff2db50862d5a09f29fc1038f3435 SHA-256: 0e270d29b41ff82806e2e08bf35c77bebb7b7d6286cfa3870b8eb005bb91424b
136 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains heuristics indicating it's a phishing lure, specifically using a Starbucks discount theme to entice users. The ML classifier and ClamAV detection strongly suggest malicious intent, classifying it as a phishing trojan. The embedded URLs likely lead to further malicious content or exploits.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://ponafet.ru/strik?utm_term=how+to+use+starbucks+partner+discount+on+app PDF link annotation
    • http://adminhalil.com/63274273726pivbo.pdfIn PDF document text
    • http://7lessons.fun/recharge_ncell_nepal_online6r2o5.pdfIn PDF document text
    • http://eushopvmn.site/beatles_sheet_music_for_piano0od95.pdfIn PDF document text
    • http://evatopshop.xyz/kazatasogiduvanabazisezemaxwlz.pdfIn PDF document text
    • http://lavkavkusa.store/80952551099iw7pu.pdfIn PDF document text
    • http://dmgameplan.com/95864479333uhk6v.pdfIn PDF document text
    • http://bigops.fun/food_safety_class_near_me6pgze.pdfIn PDF document text
    • http://hookup153.site/62432099788x52au.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368496/normal_60622e483b16f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4485157/normal_5ffc674fe272b.pdfIn PDF document text
    • http://xtreme-sport.ru/xitetixadowizakuoxk0.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/50da34f7-39d3-47db-aa97-194ca0210ed1/47883347550.pdfIn PDF document text
    • https://s3.amazonaws.com/rufonali/algebra_lineal_grossman_7_edicion_solucionario.pdfIn PDF document text
    • https://s3.amazonaws.com/fomaralunex/widufifepusefelatofigon.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8bc19e4d-3d9a-4df8-b6ec-68e2fe4dda7d/68085552254.pdfIn PDF document text
    • https://s3.amazonaws.com/teximikamukubo/what_does_phenyl_acetic_acid_smell_like.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5fe27a21-501b-40b4-96ef-d2299d8691b0/art_exercises_for_high_school_students.pdfIn PDF document text
    • https://s3.amazonaws.com/luramamelolem/mobile_ad_hoc_network_routing_protocols.pdfIn PDF document text
    • https://s3.amazonaws.com/sebunuzu/whatsapp_status_sad_poetry_video.pdfIn PDF document text
    • https://s3.amazonaws.com/jubiferekaka/avery_weigh_tronix_zk830_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/40d4964e-4431-4321-a736-5d0e46b060a4/harry_potter_book_4_chapter_35.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.

FilenameKindSourceSize
font_00_sfnt_off0000f9e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF9E6 5292 bytes
SHA-256: 8a4ac401dd763f045b138c7c34d8d9998677bc28f627c405be8fd8f291b391e3
font_01_sfnt_off00010bff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10BFF 12620 bytes
SHA-256: fc1115eb3a6e462de54b5aedb44ce54014c566c5bbd048d6f84b9fc4f6aedbf1

Open this report in the interactive analyzer, or submit your own file for analysis.