Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e0b705b35889128…

MALICIOUS

PDF

68.7 KB Created: 2021-03-01 08:08:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 57ad1c7548fc8a8499895bb56cd2a617 SHA-1: da47cea6db92231fa87f05c0d3695aab2ae63965 SHA-256: 0e0b705b35889128962cd5d35287bbead3a8645dada84f842fbcfb8abd84b45b
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • 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 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://pelibifir.ru/award?keyword=chapter+6+meiosis+and+mendel+study+guide+answer+key PDF link annotation
    • https://nuzunovi.weebly.com/uploads/1/3/5/3/135314570/3075211.pdfIn PDF document text
    • https://japilulijerimu.weebly.com/uploads/1/3/0/7/130738614/suzew_xutafarum.pdfIn PDF document text
    • http://lodujenoxo.iblogger.org/free_psd_templates_flyer.pdfIn PDF document text
    • https://cdn.sqhk.co/dazulegug/haigjjH/wedasufi.pdfIn PDF document text
    • http://card2card.live/how_to_describe_climate_weather_differentbpwjb.pdfIn PDF document text
    • https://jipubegu.weebly.com/uploads/1/3/1/0/131070098/916399.pdfIn PDF document text
    • http://wide-take.top/jatubunufitapavod8bw5g.pdfIn PDF document text
    • https://vawuwoteb.weebly.com/uploads/1/3/0/9/130969488/5985125.pdfIn PDF document text
    • https://cdn.sqhk.co/vugujebeku/jjjfjg2/piwokovuvivej.pdfIn PDF document text
    • https://womazineput.weebly.com/uploads/1/3/4/8/134895737/mebokevelaguna_dorakonawa.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://bifobexa.rf.gd/98093429360.pdfIn PDF document text
    • http://sajipesexadagon.epizy.com/1677019067.pdfIn PDF document text
    • https://s3.amazonaws.com/midipes/82253354646.pdfIn PDF document text
    • https://s3.amazonaws.com/lizuseguwix/mathantics_division_worksheets.pdfIn PDF document text
    • https://s3.amazonaws.com/bidivo/79688844201.pdfIn PDF document text
    • http://sokevigaku.rf.gd/irobot_675_vs_676.pdfIn PDF document text
    • https://s3.amazonaws.com/rurosaveruk/compiler_design_gate_questions_and_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/gofilafixu/linear_programming_algebra_2_worksheet_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/telasebisu/fewitukelefugivilafanuz.pdfIn PDF document text
    • http://mepojijolotezud.rf.gd/bazel_0._21._0.pdfIn PDF document text
    • https://s3.amazonaws.com/jolituzoji/91150420033.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_off0000cffb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCFFB 5692 bytes
SHA-256: 2294742e48bb920728ae23d51f085a486c4ced7c0c13d70045a735e110999fcc
font_01_sfnt_off0000e345.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE345 9940 bytes
SHA-256: 7d921645bd068e7bd4adb8ccfb26b6f76082726441c38182e9d3caefa98a7d04

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