Malicious PDF — malware analysis report

Static analysis result for SHA-256 9b56bf3120a97b3c…

MALICIOUS

PDF

93.2 KB Created: 2021-02-25 19:49:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 37c59a0fe17e97870c5510f0aa3a4db5 SHA-1: 5a6a70c085f687884342bd106cf9b232528aa8a1 SHA-256: 9b56bf3120a97b3cf93a2cd06e8faab97196fa97e3a6ae4e433ca6614d4214c4
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/wix?keyword=dual+nature+of+electromagnetic+waves+and+how+they+travel PDF link annotation
    • https://jiludagurifo.weebly.com/uploads/1/3/4/3/134349737/xajosoxazuwosojomane.pdfIn PDF document text
    • https://pamezupiv.weebly.com/uploads/1/3/0/7/130775156/larakataluj_futepatuluf_famopokarunized_kotukenut.pdfIn PDF document text
    • https://bazanepuxakelu.weebly.com/uploads/1/3/4/3/134346533/tadoxomoxonifi_tarotugavaka_dosijaso_natipefuvuv.pdfIn PDF document text
    • http://xuvaxujogilo.mygamesonline.org/what_are_the_characteristics_of_oceanic_crust.pdfIn PDF document text
    • https://gekiwudev.weebly.com/uploads/1/3/4/7/134769606/9081374.pdfIn PDF document text
    • http://levantegroup.net/13788106616h9wjc.pdfIn PDF document text
    • http://esplus.pro/article_370_bare_actvz0rm.pdfIn PDF document text
    • http://lololoj.sportsontheweb.net/rukow.pdfIn PDF document text
    • http://cuzinfo.ru/tirusitagibikelukumqd5gc.pdfIn PDF document text
    • http://meblik.su/moves_for_mortal_kombat_xl202g0.pdfIn PDF document text
    • http://shoop-fl.ru/33519142171duikx.pdfIn PDF document text
    • http://regsenatvumen.website/hereditary_diseases_informationz8kjt.pdfIn PDF document text
    • http://mail-autoscout24.net/27180499203mgfxs.pdfIn PDF document text
    • http://jiteruruw.sportsontheweb.net/zasopego.pdfIn PDF document text
    • https://cdn.sqhk.co/pazakazagoz/h6hfgjd/build_a_truck_by_duck_duck_moose.pdfIn PDF document text
    • https://zevijilutijeso.weebly.com/uploads/1/3/4/8/134850931/ruvizolanuput.pdfIn PDF document text
    • http://jelaluk.22web.org/reberonavoj.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://besigaku.epizy.com/xetep.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_off00012411.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12411 5688 bytes
SHA-256: 97ce4f5ac9ae40bc3f19c400b1199cf94481307165afbdf35bcd66b7bda2ebac
font_01_sfnt_off00013764.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13764 15408 bytes
SHA-256: 67188e30ecb5eed04945e6ca41feb56d273cab8e0c47831e82afa71fffe0b3c9