Malicious PDF — malware analysis report

Static analysis result for SHA-256 16d0187f3691a928…

MALICIOUS

PDF

73.9 KB Created: 2021-02-19 05:59:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 5a6ac9ab625eddcf066190f08e9b7888 SHA-1: 34153eeb9d8e328a83631c3393ef5d1b116927c1 SHA-256: 16d0187f3691a92851d07c2b158ef7b06c3aa5e8d0b2a7c12d6c7493074d8848
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://seumenha.ru/aws?utm_term=en+que+consiste+el+manual+de+funciones+de+una+empresa PDF link annotation
    • https://cdn.sqhk.co/wemofisejaf/ROwbDnC/diwesok.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4426687/normal_6008b5614e77e.pdfIn PDF document text
    • https://cdn.sqhk.co/gujuvizaja/jzVhaja/a_roberts_and_associates_louisville_ky.pdfIn PDF document text
    • http://jikawixekeras.iblogger.org/chakram_movie_naa_songs_telugu.pdfIn PDF document text
    • http://vugijow.iblogger.org/24725659462.pdfIn PDF document text
    • https://cdn.sqhk.co/lekabewoz/Qichgjj/kuvamutumulapibesijodudew.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4462046/normal_60068b154aff6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459780/normal_600bb722919da.pdfIn PDF document text
    • https://cdn.sqhk.co/tivuzofep/b7jbij5/75363914537.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4390642/normal_601494bc7ab01.pdfIn PDF document text
    • https://cdn.sqhk.co/dopuwene/ijvH7hf/monster_truck_fever_driving_experience.pdfIn PDF document text
    • https://cdn.sqhk.co/zifeduwa/gcihetg/ice_age_adventures_animals.pdfIn PDF document text
    • http://rinavorepem.iblogger.org/edit_bookmarks_mac.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://dovagoxaluzof.rf.gd/59123662713.pdfIn PDF document text
    • http://jojofolarimema.epizy.com/jipugez.pdfIn PDF document text
    • http://davojuke.epizy.com/tobabil.pdfIn PDF document text
    • http://dikokek.epizy.com/87732097302.pdfIn PDF document text
    • http://rafelisugamiraw.rf.gd/free_sheet_music_blue_skies_irving_berlin.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_off0000e260.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE260 5384 bytes
SHA-256: b5c1ee66e6f9c475810fdfe657d8683d703b81ddee008ab9b57fc10aee11aab3
font_01_sfnt_off0000f49c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF49C 11092 bytes
SHA-256: 23e852158753550322e0023263b2b1fb4e146e30d76217c60666e663813bccb8