Malicious PDF — malware analysis report

Static analysis result for SHA-256 2173979f307a9b78…

MALICIOUS

PDF

72.2 KB Created: 2021-02-27 05:36:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 7461176c9c6d03f2b53156183246f4c5 SHA-1: d04cdf7522a2bc25b844e5b13201d64bec39f981 SHA-256: 2173979f307a9b788830755ce55d149ce41842ab37782072a469c069a58ab827
186 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.
  • 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://gimoguvi.ru/award?keyword=canon+pixma+mg3122+power+cord PDF link annotation
    • https://mivagori.weebly.com/uploads/1/3/5/3/135318233/zopuwogizazisijelaf.pdfIn PDF document text
    • https://tesitibu.weebly.com/uploads/1/3/4/7/134712385/9571802.pdfIn PDF document text
    • https://cdn.sqhk.co/temirikuji/ib7nWhc/fituviwibenufuvu.pdfIn PDF document text
    • https://figovuliwa.weebly.com/uploads/1/3/4/4/134476313/8c708.pdfIn PDF document text
    • https://tuwagufo.weebly.com/uploads/1/3/3/9/133999840/9284374.pdfIn PDF document text
    • https://cdn.sqhk.co/devurekon/f6dbKge/fupedawuw.pdfIn PDF document text
    • https://cdn.sqhk.co/kujotukil/fgchcgg/tazojivumopuvod.pdfIn PDF document text
    • https://cdn.sqhk.co/mowuseparap/hDlohbU/26505910698.pdfIn PDF document text
    • https://sawifotu.weebly.com/uploads/1/3/4/5/134597463/4d8c2.pdfIn PDF document text
    • http://rilomenininun.getenjoyment.net/hp_elitebook_2760p_ram_slots.pdfIn PDF document text
    • http://kexedoliresile.22web.org/72003599396.pdfIn PDF document text
    • https://zuzedunili.weebly.com/uploads/1/3/4/4/134460484/3623675.pdfIn PDF document text
    • https://cdn.sqhk.co/kubepugemaki/ygeUNaw/can_you_answer_private_number_plate.pdfIn PDF document text
    • http://kugowulenaxo.iblogger.org/how_to_use_noxxa_pressure_cooker_for_the_first_time.pdfIn PDF document text
    • https://bejitukinerebi.weebly.com/uploads/1/3/4/8/134890105/5219938.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://widifusi.myartsonline.com/dosolupomidigani.pdfIn PDF document text
    • http://rejamokag.rf.gd/how_much_do_barbers_pay_for_a_chair.pdfIn PDF document text
    • http://dejudunobagozut.epizy.com/pegumanizetubagopekit.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_off0000dea3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDEA3 5596 bytes
SHA-256: caa993f4618ad78cce3edeb13546f9bd374a3a68468703796c86e8418a578e11
font_01_sfnt_off0000f1b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF1B7 9992 bytes
SHA-256: a05748cc63bee86332e4345bbf257bc20061591419b6bd00758b92c44a7fe57c

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