Malicious PDF — malware analysis report

Static analysis result for SHA-256 02e99102e9468f5b…

MALICIOUS

PDF

73.0 KB Created: 2021-02-18 08:17:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 1adc84eb598a4822c7e20ffb8c723010 SHA-1: cba9707f9ec86bc752fda16a29e42dbc963c3683 SHA-256: 02e99102e9468f5b2f8166fb009006ff3d1863e797751903e56836355bae076e
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://crophysi.ru/wix?keyword=hoover+floormate+deluxe+hard+floor+cleaner+manual In PDF document text
    • https://cdn-cms.f-static.net/uploads/4393754/normal_6012daa525d83.pdfIn PDF document text
    • http://wutukuk.22web.org/careers_in_performing_arts_administration.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4486965/normal_5ffe79eed7316.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4391327/normal_600e62dab646b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4482020/normal_5fde4373c6a0e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4448094/normal_6007d92baaa6b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4384149/normal_5fcd65110077c.pdfIn PDF document text
    • https://cdn.sqhk.co/bizujutenifo/AqhgiaP/xutelibofojox.pdfIn PDF document text
    • http://lightly.store/james_destroys_diseases_website1zv2g.pdfIn PDF document text
    • https://cdn.sqhk.co/kimejijomaki/ib7I3ji/easter_mazes_for_preschoolers.pdfIn PDF document text
    • http://winoraama.site/18169173609udoo4.pdfIn PDF document text
    • https://cdn.sqhk.co/zarejesorufo/wmBWDgf/dog_smiles_live_wallpaper_android_free.pdfIn PDF document text
    • http://b4shop.icu/black_desert_online_t9_horse_guidetiwwd.pdfIn PDF document text
    • http://jijukilodo.iblogger.org/synthetic_fibers_and_plastics_class_8_worksheets.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370268/normal_6017b48c58954.pdfIn PDF document text
    • https://cdn.sqhk.co/silutoge/vieghMi/tewir.pdfIn PDF document text
    • https://cdn.sqhk.co/velijituma/ihehbge/faily_brakes_mod_apk_new_version.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4456140/normal_5ff3ee405ed91.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://ruxomipeb.epizy.com/approval_form.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c7c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC7C1 5172 bytes
SHA-256: 81b97474234b1f5ee5a253fc0404e8247df7c0f0d4c38a2dfdd85db247be9f33
font_01_sfnt_off0000d936.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD936 12376 bytes
SHA-256: a7f3cd4046cac0a08b878c01594161b69792fa70cdaa170f080cddac7f245175
font_02_sfnt_off0001013c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1013C 16232 bytes
SHA-256: e1fcaa290bc8b5aed85f312864440120c61db6abd2add9737883d56687aaee62

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