Malicious PDF — malware analysis report

Static analysis result for SHA-256 6b24372ecca61439…

MALICIOUS

PDF

70.6 KB Created: 2021-02-22 12:46:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 2d0349baf5e0940c42891aec433ea214 SHA-1: 36aca508b56153380b65e58a271e69ed9d934699 SHA-256: 6b24372ecca614390e4a0241c3f2d511a5f4ca5b854d590f545119f1ae576c59
126 Risk Score

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://seumenha.ru/aws?utm_term=what+the+purpose+of+a+title+deed+uk PDF link annotation
    • http://grinallex.shop/giwop4xa5n.pdfIn PDF document text
    • https://bexopugizabon.weebly.com/uploads/1/3/4/0/134042324/1325985.pdfIn PDF document text
    • http://wavarev.22web.org/can_t_connect_to_wifi_network_android.pdfIn PDF document text
    • http://vumoramoguko.22web.org/mefezeke.pdfIn PDF document text
    • https://xirabefutabo.weebly.com/uploads/1/3/5/3/135323672/duwulenirunofofa.pdfIn PDF document text
    • https://widonudafedezu.weebly.com/uploads/1/3/0/7/130776490/317719.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417669/normal_602623283ae7d.pdfIn PDF document text
    • http://nakezubelakibe.22web.org/83570393153.pdfIn PDF document text
    • http://shop-profildoors.ru/fearon_rationalist_explanations_for_warkfbsp.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4457573/normal_5ffb2677c3e89.pdfIn PDF document text
    • http://linza.media/guided_mule_deer_hunts_in_oregonjl59a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4497079/normal_6022a9d42de38.pdfIn PDF document text
    • https://sogifeni.weebly.com/uploads/1/3/2/7/132712483/7404447.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wewonak.rf.gd/64998290701.pdfIn PDF document text
    • http://morikid.epizy.com/raisin_in_the_sun_walter_quotes.pdfIn PDF document text
    • http://lisunamubeso.epizy.com/kutajakupuwanaravu.pdfIn PDF document text
    • http://repoguter.epizy.com/miss_world_2018_winner_question_and_answer.pdfIn PDF document text
    • http://dotenax.rf.gd/2004_dodge_ram_1500_tail_light_bulbs.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_off0000d8e7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD8E7 5204 bytes
SHA-256: ac07fbde0f4444d53fd0247bfdb32b7c610742c1ddda908d786f6f94ff5b0374
font_01_sfnt_off0000eaa3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEAA3 10216 bytes
SHA-256: ba3fd8f1969a16b2ad994b40787b8752ccce8f9cb4316cdb149829ac7cb5c0c0