Malicious PDF — malware analysis report

Static analysis result for SHA-256 2dcf0b6e32ffc214…

MALICIOUS

PDF

82.3 KB Created: 2021-03-08 13:51:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: b9810107f8efc81c18525447f506dd0e SHA-1: b6b5800c26b7aba726db49b81eaeaf6064fc67a4 SHA-256: 2dcf0b6e32ffc214d691a692d526b5198c26ba976690ff4b32d26886162c3096
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://golowaki.ru/award?keyword=reverse+dieting+layne+norton+pdf PDF link annotation
    • http://testrun.ru/go_along_for_the_ride_meaning_in_hindild2ky.pdfIn PDF document text
    • http://flowerport.store/segundo_teorema_de_traslacion8tu0t.pdfIn PDF document text
    • http://cashtanks.fun/mathematics_with_applications_11th_edition_freeakiht.pdfIn PDF document text
    • http://itdiscount.info/4328429648fcc4j.pdfIn PDF document text
    • http://juwupexutaval.mywebcommunity.org/toxibovesisixosape.pdfIn PDF document text
    • http://grinallex.shop/cambridge_advanced_learners_dictionaryfc1mc.pdfIn PDF document text
    • http://fullpisetc.ru/rawipvdwgx.pdfIn PDF document text
    • http://bumosid.getenjoyment.net/starting_your_own_cleaning_business_in_south_africa.pdfIn PDF document text
    • https://cdn.sqhk.co/vaxizavex/HNkhcgh/93382901465.pdfIn PDF document text
    • http://rezltml.xyz/ap_chemistry_notesyr7h3.pdfIn PDF document text
    • http://pycnidwzxc.info/763717817844qjc9.pdfIn PDF document text
    • http://dmdmassage.com/rilususaja4n3pj.pdfIn PDF document text
    • http://wubujonil.getenjoyment.net/bob_revolution_stroller_se_used.pdfIn PDF document text
    • https://cdn.sqhk.co/xamowepap/j2xiija/buxefevedojig.pdfIn PDF document text
    • http://itali-big.space/naruto_ultimate_ninja_blazing_ninja_road_guide6om9a.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://e8f98835-b194-42a5-b43f-fe2f29920dd6.filesusr.com/ugd/bf650e_ae600e972fb14451814bc0489ded5786.pdf?index=trueIn PDF document text
    • https://dab7fb03-f2af-4a8e-9cb9-31de623bedb3.filesusr.com/ugd/58b596_eeb8e4ca5253442ebfc09b6951753dd8.pdf?index=trueIn PDF document text
    • http://pilejifizodan.onlinewebshop.net/50207180438.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_off000104b8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x104B8 5380 bytes
SHA-256: aaf23205e53b84e06f90f51bbaa63a5f42873021c3dbad6bb53f8465bc9d9949
font_01_sfnt_off00011725.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11725 10884 bytes
SHA-256: a893617f78fc9cbb843e0d2cff61a6d1507c0bd4009e00ae864f95c106c7c301