Malicious PDF — malware analysis report

Static analysis result for SHA-256 460e58b273d47b3b…

MALICIOUS

PDF

79.9 KB Created: 2021-03-30 03:47:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 78ba343446458f9d677e96af200b7682 SHA-1: 7bbbfad996de2e5593960a8a390bee6f1b84db6c SHA-256: 460e58b273d47b3bd5bc9f1e04e797a39c07d54814d824fa6c4ff357d0005edf
126 Risk Score

Malware Insights

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

The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous external URIs pointing to disposable domains, suggesting a link farm or phishing lure. The PDF structure and embedded URLs are consistent with spearphishing attachments used to redirect users to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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/wix?keyword=kenmore+90+series+dryer+repair+manual+pdf
    • http://vipadminler.org/natural_disaster_preparedness_plan_templatew94a6.pdf
    • http://mitatizizuje.mypressonline.com/sexatunukolasuw.pdf
    • https://romugazasemagop.weebly.com/uploads/1/3/4/8/134897733/xumebiwelelusesugo.pdf
    • https://jarufepijup.weebly.com/uploads/1/3/0/7/130776730/2703348.pdf
    • http://lbaranaydin.com/11481220600or75g.pdf
    • http://dorightschool.com/email_list_free_downloadq1b0o.pdf
    • https://static.s123-cdn-static.com/uploads/4419849/normal_60069ad8ec711.pdf
    • https://cdn.sqhk.co/ruxukulalodi/fDheiKp/kumakusisave.pdf
    • http://dosaxixapaxa.medianewsonline.com/ryobi_12_drill_press_review.pdf
    • https://cdn-cms.f-static.net/uploads/4485927/normal_60145211d2c25.pdf
    • http://tejasatobes.medianewsonline.com/blueprints_medicine_6th_edition_download.pdf
    • http://hd-cam-mirror-up1.club/219591440841nuh5.pdf
    • https://cdn.sqhk.co/solijisivono/XgciRji/chess_pieces_how_do_they_move.pdf
    • http://movawizaxaxato.mywebcommunity.org/29052798775.pdf
    • http://bunagutafa.getenjoyment.net/27662289856.pdf
    • https://cdn-cms.f-static.net/uploads/4426267/normal_60434f3f39316.pdf
    • http://wogivodugakovek.mygamesonline.org/all_important_dates.pdf
    • http://falorilipeb.mywebcommunity.org/ceremony_book.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • http://wulibazosuxib.onlinewebshop.net/60667438892.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000eab2.bin
32ed6c107d35bd15aa720f45e9fa6641a160cc7e3e228f04c89d862f4bf4ddf0		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEAB2 5356 bytes
font_01_sfnt_off0000fccd.bin
75e702b82bbb4a5c68e3af42d66726ae66a74f0bddee3a23ac7c12715b503a04		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFCCD 11528 bytes
font_02_sfnt_off0001245d.bin
a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1245D 4324 bytes

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