Malicious PDF — malware analysis report

Static analysis result for SHA-256 2f756a2c1ff9addb…

MALICIOUS

PDF

70.2 KB Created: 2021-03-06 11:34:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 8b9a792222c38f5dea1cef36192a143b SHA-1: db09ed65d9a564679d471dae583cbed246cb9333 SHA-256: 2f756a2c1ff9addb66bdd749bfa8613ef1b2c032834a9163c17cbdb07e3a2b75
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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.
  • 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://jacksth.ru/award?keyword=sgfi+tug+of+war+rules PDF link annotation
    • https://fenikazegalo.weebly.com/uploads/1/3/1/3/131379965/dubolumaxobeze.pdfIn PDF document text
    • https://lusimijibujadex.weebly.com/uploads/1/3/4/6/134677052/0212e67b5.pdfIn PDF document text
    • https://lakupofudeb.weebly.com/uploads/1/3/0/7/130775354/mexol-nomonosop-tonivujanuvuba.pdfIn PDF document text
    • http://bekopomulasebi.getenjoyment.net/mysterious_benedict_society_series_list.pdfIn PDF document text
    • https://gepadera.weebly.com/uploads/1/3/0/7/130740344/mukod_xosukez.pdfIn PDF document text
    • http://zixivudu.getenjoyment.net/elevator_speech_examples_for_college_students.pdfIn PDF document text
    • https://juwufugoxeza.weebly.com/uploads/1/3/4/5/134528381/4822962.pdfIn PDF document text
    • https://vovasodakujex.weebly.com/uploads/1/3/0/8/130874601/daleletoxubusix.pdfIn PDF document text
    • https://medotufise.weebly.com/uploads/1/3/4/5/134512565/a652362dc67c.pdfIn PDF document text
    • http://tejovotemikodes.getenjoyment.net/gufewurugolanuledutedogi.pdfIn PDF document text
    • http://jiwabozaxexe.mypressonline.com/vobijalap.pdfIn PDF document text
    • http://mamafiposorugul.sportsontheweb.net/fz_25_price_in_nepal_2019.pdfIn PDF document text
    • http://jorowijedo.mywebcommunity.org/dewalt_dw402_parts_breakdown.pdfIn PDF document text
    • https://jegobagugixados.weebly.com/uploads/1/3/4/8/134858953/biwufogevaxiliwu.pdfIn PDF document text
    • http://gifazat.iblogger.org/75216350474.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://faxiruvud.myartsonline.com/is_great_clips_still_open.pdfIn PDF document text
    • https://0926596c-b1e6-4473-87d6-fed2e709bfeb.filesusr.com/ugd/e2a635_5a57e23697fc4806bd49fdc619a3bf87.pdf?index=trueIn PDF document text
    • http://newemepakirid.myartsonline.com/97746454452.pdfIn PDF document text
    • http://namakanexir.atwebpages.com/79390849947.pdfIn PDF document text
    • https://67bb8873-ca08-4da4-87c0-60a8072ebff6.filesusr.com/ugd/a838c0_8a2326c85c6447849a046ead881818d2.pdf?index=trueIn PDF document text
    • http://fekerudosepu.rf.gd/time_travelers_wife_book_quotes.pdfIn PDF document text
    • https://af18ad75-7652-4b25-b9e0-8da5fded0af1.filesusr.com/ugd/529385_fe80d61a31ab4508bd2580ede4728a69.pdf?index=trueIn PDF document text
    • https://425e2ee7-996f-4c6d-a593-b44a2a39b733.filesusr.com/ugd/bb05c1_0b85a2826e39453e9057eb92421b1321.pdf?index=trueIn PDF document text
    • http://jowosos.myartsonline.com/17700079521.pdfIn PDF document text
    • http://rodiwube.epizy.com/avc_any_video_converter.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_off0000d8c6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD8C6 5128 bytes
SHA-256: 04db34d18786202e85ababac0ae668f1d072eebc54ef7e4c340efc64b4c8db74
font_01_sfnt_off0000ea5c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA5C 9724 bytes
SHA-256: 9b905fa19d7a7e296ab3afd51472d3a67b6d2356359d989274bd0dda810c697d