Malicious PDF — malware analysis report

Static analysis result for SHA-256 dae0ff8319feb17b…

MALICIOUS

PDF

66.6 KB Created: 2021-02-28 23:40:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: fb271b9b3539dd3130262e43d142e5df SHA-1: 02b3e08248e8dd1b2ca6d68424e9d34e6adbaaec SHA-256: dae0ff8319feb17bd075eb193caea82459c64b6df6daa95e5097edbd4257f8d5
136 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
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://midufefew.ru/award?keyword=sivapuranam+thiruvasagam+lyrics+in+tamil+pdf PDF link annotation
    • http://mowewuwopirot.iblogger.org/bach_concerto_for_two_violins_sheet_music.pdfIn PDF document text
    • http://gaxotewaboka.iblogger.org/36641918742.pdfIn PDF document text
    • http://kesuvajeb.scienceontheweb.net/missouri_charge_code_304.010.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4479441/normal_601d7d41bf43e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366020/normal_5feaed7d4987c.pdfIn PDF document text
    • http://ribavid.medianewsonline.com/how_often_to_do_lower_back_exercises.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4460057/normal_5fcbdbb58a878.pdfIn PDF document text
    • http://lorakuze.sportsontheweb.net/42649420181.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4466165/normal_601905d25c10c.pdfIn PDF document text
    • http://suvuxivenorum.mypressonline.com/woranarutemobip.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/pukiza/customer_service_sample_interview_questions_and_answers.pdfIn PDF document text
    • http://silumigu.epizy.com/holcim_philippines_inc_annual_report_2017.pdfIn PDF document text
    • http://rezekeruj.rf.gd/appvn_apk_latest_version_for_android.pdfIn PDF document text
    • https://s3.amazonaws.com/vinivuxo/jafanewegopinurunomufik.pdfIn PDF document text
    • https://s3.amazonaws.com/mupukesunobaga/41264006016.pdfIn PDF document text
    • http://xewipinimof.epizy.com/what_is_rule_based_and_principle_based.pdfIn PDF document text
    • https://s3.amazonaws.com/fuzafuzeruwit/tata_sky_tv_recharge_app.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_off0000c845.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC845 5832 bytes
SHA-256: 9e720e599c08dc778f33b181ffe2ef920583c374da324d3629d372a04f82b4d5
font_01_sfnt_off0000dc06.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC06 9756 bytes
SHA-256: bdb23948f795a3b08789d61ccbee74c30909e513d020f16daa580eebeb92ea17