Malicious PDF — malware analysis report

Static analysis result for SHA-256 31cd80c5c4a0ecff…

MALICIOUS

PDF

76.6 KB Created: 2021-02-16 02:26:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: 7472a9e06fac1d0e5955473e44e988d0 SHA-1: d7369812c614ee55a060bfdb024b1f826a9c8c67 SHA-256: 31cd80c5c4a0ecff5163ce1390422336e3b05b092820e0ecb4fd98e98f602977
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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/wix?keyword=libro+50+sombras+de+grey+gratis+para+android PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4422628/normal_5fe2f047d6b81.pdfIn PDF document text
    • http://tamakar.tech/how_to_install_craftsman_garage_door_opener_keypad9j5h1.pdfIn PDF document text
    • https://cdn.sqhk.co/puvegipuros/hsPigif/forbes_magazine_subscription_free.pdfIn PDF document text
    • http://energytik.net/bengal_tiger_movie_tamil_dubbedos3c5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4490754/normal_60120e531e719.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4475571/normal_5feb093dd44dc.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4383156/normal_60090d5c2d3c6.pdfIn PDF document text
    • https://litukepulaj.weebly.com/uploads/1/3/4/8/134863372/d82fe53c768ff.pdfIn PDF document text
    • https://jesasifewom.weebly.com/uploads/1/3/1/4/131453969/zejababafotik-rezogisotida-lafufogeji.pdfIn PDF document text
    • https://cdn.sqhk.co/xutijexop/eaghDgd/ice_cream_factory_popsicle_cone_maker_instructions.pdfIn PDF document text
    • https://cdn.sqhk.co/givikufat/8qVWjhd/rock_radio_station_los_angeles_ca.pdfIn PDF document text
    • http://arfeshome.com/chrome_addon_facebook_videocuzbs.pdfIn PDF document text
    • https://kerumeso.weebly.com/uploads/1/3/4/6/134641164/1177950.pdfIn PDF document text
    • http://photoforce.ru/moores_clinical_anatomy_free_downloadwhbou.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/werowibovezoje/zodowowezogubiv.pdfIn PDF document text
    • http://fejasafevavo.epizy.com/john_deere_310b_backhoe_parts_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/lixasifasi/82965464753.pdfIn PDF document text
    • https://s3.amazonaws.com/widuxade/que_es_la_lipofuscina.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_off0000eca5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xECA5 5696 bytes
SHA-256: 21d6a4378f9007909ce515731e11cc4cca2bfdaccdc386b8b42ead9f44d88d5a
font_01_sfnt_off0000ffff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFFFF 11452 bytes
SHA-256: f1c06ef7ca6bb66c84667a956db31401633b28deaede87bc000be6f4c11c140e