Malicious PDF — malware analysis report

Static analysis result for SHA-256 2bc00ffaf5837a7c…

MALICIOUS

PDF

72.5 KB Created: 2021-02-19 09:54:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 05a50f56ba3d00b52e0fa3630dbbb2b2 SHA-1: 91ff149ff82edb1b8719c7512d7113568ffc6a27 SHA-256: 2bc00ffaf5837a7c709be0040925ff30517a284bde69d4f8774a558513318190
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://jottigo.ru/wix?keyword=official+ffa+manual+worksheet PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4479212/normal_5fe1c6c0f3669.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4488817/normal_5fcc8d8e0f7f0.pdfIn PDF document text
    • https://vonepegoparopew.weebly.com/uploads/1/3/4/3/134352316/likusokevalivino.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4480758/normal_5feb3ff39d8e5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476011/normal_601fb0a26a8f2.pdfIn PDF document text
    • https://jurujixomegisi.weebly.com/uploads/1/3/4/7/134745805/2115205.pdfIn PDF document text
    • http://netusikofigo.22web.org/99756089549.pdfIn PDF document text
    • https://kovorugoza.weebly.com/uploads/1/3/1/3/131383314/e7c7f5.pdfIn PDF document text
    • https://vasoderavir.weebly.com/uploads/1/3/4/7/134728489/3411912.pdfIn PDF document text
    • https://tegidaweriwasul.weebly.com/uploads/1/3/1/4/131483440/090f496f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4407100/normal_602c9ba51a231.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/mexesazaxasa/2007_chevrolet_suburban_lt_1500_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/zusevamasor/termination_letter_during_probation_period_format.pdfIn PDF document text
    • https://s3.amazonaws.com/lusabifef/20236881057.pdfIn PDF document text
    • https://s3.amazonaws.com/woberiz/open_outlook_template_multiple_times.pdfIn PDF document text
    • https://s3.amazonaws.com/silubebebefuju/alpine_v_power_mrp-m500_price.pdfIn PDF document text
    • https://s3.amazonaws.com/redegelesibif/merger_and_inquisitions_interview_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/sivanira/bin_bulaye_baraati_movie_bolly4u.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_off0000db8b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB8B 5304 bytes
SHA-256: 14d73c6c1c3c70027e6716db23b9ec25497b8721c896059d97240f1ecf388f5d
font_01_sfnt_off0000ed81.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED81 11032 bytes
SHA-256: 24b815be28441e8aa24b9c361f34cfdd92141082d48d2a35385c69d1f1895ff9