Malicious PDF — malware analysis report

Static analysis result for SHA-256 e267a3951abefb3b…

MALICIOUS

PDF

71.6 KB Created: 2021-02-28 13:08:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 7d930b60042479bc16a9a28e88727797 SHA-1: 707619e3e1a05ed879dec989090605ec8527e74b SHA-256: e267a3951abefb3b48f1b104001239de793f6bdd607f4a1102da02b0f50605a6
126 Risk Score

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
  • 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://fokemale.ru/wix?keyword=sharp+half+pint+carousel+microwave+oven PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4387919/normal_5fdf017ba7370.pdfIn PDF document text
    • https://cdn.sqhk.co/forinabam/dijfheY/can_you_escape_6_level_4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4490724/normal_6005b9ddaf850.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379856/normal_602abe00ab6e5.pdfIn PDF document text
    • http://tezijexipilimo.getenjoyment.net/94376075174.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476152/normal_602a6be35394f.pdfIn PDF document text
    • http://fuvesozufinefi.medianewsonline.com/vebaxutolo.pdfIn PDF document text
    • http://xuwuvewisin.mypressonline.com/performance_review_samples_for_employees.pdfIn PDF document text
    • http://mevukavotidu.getenjoyment.net/how_do_i_fix_a_dish_hard_drive_failure.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4461791/normal_600f4079da60c.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://firiwigisu.atwebpages.com/how_to_connect_my_brother_scanner_to_my_mac.pdfIn PDF document text
    • http://rulamiji.onlinewebshop.net/english_conversation_for_class_10.pdfIn PDF document text
    • http://ziwivazud.onlinewebshop.net/fijoj.pdfIn PDF document text
    • http://tuwutexo.onlinewebshop.net/xefebisupokapujanono.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_off0000dabe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDABE 5508 bytes
SHA-256: 78297277b28379276bf16b85b99eb5520f75378197f6416f29ce8d9c53ef43dd
font_01_sfnt_off0000ed68.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED68 10568 bytes
SHA-256: 4549f73cc9175463b1238e5e1a4f0a1f456c11b9ecf39f61324e999fef495ebe