Malicious PDF — malware analysis report

Static analysis result for SHA-256 2ba08319cdda8bce…

MALICIOUS

PDF

68.0 KB Created: 2021-03-08 15:33:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: cc5e0423175a6f174c4c4fde06863c7e SHA-1: 761d3981b2027ba76c25a1cfa670888e003f2ed0 SHA-256: 2ba08319cdda8bce9666992f25de0b6f91696aa5862188905f18f743508af17b
126 Risk Score

Malware Insights

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

The file is identified as malicious by multiple heuristics, including a high-confidence ML classifier and ClamAV detection as 'Pdf.Phishing.Trojan'. The PDF contains numerous embedded URLs, many of which point to disposable hosting or unknown reputations, suggesting a phishing or scam attempt. The document body, though heavily obfuscated, contains keywords related to a specific product, likely a lure to entice clicks on the malicious links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://xezojetit.ru/aws?utm_term=tomtom+go+5000+mount+not+charging PDF link annotation
    • http://gamowenugeg.sportsontheweb.net/michael_douglas_how_much_is_he_worth.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379970/normal_603e0812e1dbf.pdfIn PDF document text
    • https://jasebezaf.weebly.com/uploads/1/3/4/6/134630561/mijamizum_fetenenunime_ditegovimok_zejokevamidujaz.pdfIn PDF document text
    • https://cdn.sqhk.co/norifasil/ihhehhQ/xurelipu.pdfIn PDF document text
    • http://vixemifojetinag.sportsontheweb.net/vewusugojigunujud.pdfIn PDF document text
    • https://cdn.sqhk.co/xenumobavun/gewUUcN/rujenunifugidav.pdfIn PDF document text
    • http://biteroz.iblogger.org/pipatodadutamedili.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4368772/normal_5fdeff952b670.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4454429/normal_6004a9dc9308d.pdfIn PDF document text
    • https://kinixudowobi.weebly.com/uploads/1/3/5/3/135399761/9231457.pdfIn PDF document text
    • http://vanimerukaguto.scienceontheweb.net/vurasepukutanagetamagoxi.pdfIn PDF document text
    • https://cdn.sqhk.co/rilowikapaz/hVakiiu/what_is_device_pulse_on_my_android_phone.pdfIn PDF document text
    • https://cdn.sqhk.co/pumibavi/ejjD1k1/microsoft_launcher_apkmirror.pdfIn PDF document text
    • http://dokanusivodob.22web.org/keto_food_list_for_beginners.pdfIn PDF document text
    • http://potuxoposutu.medianewsonline.com/how_good_are_dixie_chopper_mowers.pdfIn PDF document text
    • https://cdn.sqhk.co/lusoxepero/hBykizJ/26490779979.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://82cb18f6-4a40-4824-ac11-10070f72ce02.filesusr.com/ugd/5aec95_b88005f11c4c404f8179049b05dbc934.pdf?index=trueIn PDF document text
    • http://dawabarefexuf.epizy.com/que_elementos_de_la_tabla_periodica_son_solidos_liquidos_y_gaseosos.pdfIn PDF document text
    • http://rozasazi.epizy.com/applied_economics_deped.pdfIn PDF document text
    • http://sedejavuguz.rf.gd/mandarin_restaurant_nutrition_guide.pdfIn PDF document text
    • https://e0220c8c-c322-4c33-af83-7c5b0fe00b66.filesusr.com/ugd/a771bd_55676940f1964efbac37027bf2fccb6e.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.

FilenameKindSourceSize
font_00_sfnt_off0000ccd6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCCD6 5220 bytes
SHA-256: 9f461d7543c0ac3aad83079e1cb6ae7e50eb02b659895df255ccff8d72cd023e
font_01_sfnt_off0000de74.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE74 11152 bytes
SHA-256: ecdd3773d9665976ae4e951fbce0c20d211c036dff48a4cd41e7cd1d6ddd41e2

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