Malicious PDF — malware analysis report

Static analysis result for SHA-256 959095b215b9d0ae…

MALICIOUS

PDF

72.8 KB Created: 2021-03-16 04:28:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-20
MD5: e42fb52d5c289314eff657ec1651a283 SHA-1: ca8bbf5c3ec3c90c6d49ce6f7a5b40782ee03c56 SHA-256: 959095b215b9d0ae4e5baf0a04b80d24492cb5c540ebe2cff3b3e33c4377631d
136 Risk Score

Malware Insights

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

This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The 'PDF_SEO_UTM_REDIRECTOR_LINK' heuristic suggests the document is designed as a phishing lure, using 'Vilas county public tax records' as bait to redirect users to a malicious URL. No scripts were extracted, but the presence of external URIs and the overall detection profile point towards a phishing or malware distribution campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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://lozipotod.ru/wix?keyword=vilas+county+public+tax+records PDF link annotation
    • http://shopmzm.site/botoxenifwi0nf.pdfIn PDF document text
    • http://idealslim-italiaofficial.site/tappan_range_broiler_elementu5vrg.pdfIn PDF document text
    • http://ig-socialmedia.xyz/how_to_read_fingerpicking_patterns_guitari61oq.pdfIn PDF document text
    • http://promooffer.site/of_mice_and_men_quotes_about_loneliness1vf3k.pdfIn PDF document text
    • http://anarchymedya.com/variador_yaskawa_v1000_manual_espaol8kkiq.pdfIn PDF document text
    • http://operationhomeplate.com/13545001050dyoj3.pdfIn PDF document text
    • https://cdn.sqhk.co/maxevurux/gmihifj/xijivawogarino.pdfIn PDF document text
    • https://cdn.sqhk.co/xubuzivo/Ije0lhh/sovefewogerupopumakaweri.pdfIn PDF document text
    • http://blue-tick-central.com/nevekamafezubaboleladufe6o0wv.pdfIn PDF document text
    • https://cdn.sqhk.co/jeforije/jehfuij/monivuxalusugukelamifuf.pdfIn PDF document text
    • https://cdn.sqhk.co/fadejiweruw/yHHgfwb/woxazamizetujufuvunojivoj.pdfIn PDF document text
    • https://cdn.sqhk.co/lijipatalenu/UttahjU/newspaper_horse_racing_tips_for_tomorrow.pdfIn PDF document text
    • http://ketovud.22web.org/2005_nissan_murano_sl_specs.pdfIn PDF document text
    • http://prosale.company/nesazepumokizifobajubgbrtz.pdfIn PDF document text
    • http://getsol.xyz/60892832819zy6m6.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/bufipevuril/44706802748.pdfIn PDF document text
    • http://datufubizut.rf.gd/11563783744.pdfIn PDF document text
    • https://s3.amazonaws.com/goviwigax/61102444826.pdfIn PDF document text
    • https://s3.amazonaws.com/muwemivumazulax/bisel.pdfIn PDF document text
    • https://s3.amazonaws.com/kovilowab/nefokix.pdfIn PDF document text
    • http://parekiwebepis.epizy.com/cuisinart_14_cup_food_processor_parts.pdfIn PDF document text
    • https://s3.amazonaws.com/daxemo/super_metroid_remake_2020.pdfIn PDF document text
    • https://s3.amazonaws.com/guxosa/16881548973.pdfIn PDF document text
    • https://s3.amazonaws.com/widiku/baghban_full_movie_filmywap_480p.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_off0000dea7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDEA7 5344 bytes
SHA-256: c8264cd7f6d5eb03833fbbdeb29ea9bf1d838ea1b660450e941fa3588c49445a
font_01_sfnt_off0000f0e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0E5 10712 bytes
SHA-256: 13f15d7f97a1c799d80ce83d81b61aa2f11c66cceb9388c5d4f674219faa2ced

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