Malicious PDF — malware analysis report

Static analysis result for SHA-256 a2412bb4c6775713…

MALICIOUS

PDF

71.3 KB Created: 2021-03-07 07:46:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 3e5722196eb4e6e3a671184f85e4e948 SHA-1: 42c32175f3f70cf55e7b08db9bb316a50ed7d53c SHA-256: a2412bb4c67757132fc4503b6b07e1506bebc8ff94a532431d89ac4197df07f9
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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://zajinet.ru/award?keyword=mothers+day+inspirational+quotes+from+daughter PDF link annotation
    • http://kovuzaxaf.medianewsonline.com/ventura_avenue_gangsters.pdfIn PDF document text
    • https://sumulepali.weebly.com/uploads/1/3/4/8/134882140/a53aeeb0c9.pdfIn PDF document text
    • https://cdn.sqhk.co/fugovigul/cgcbIwJ/chicken_run_2000_imdb.pdfIn PDF document text
    • https://cdn.sqhk.co/fofateze/idyTjfP/dragon_quest_dai_game.pdfIn PDF document text
    • https://xebudaxuzab.weebly.com/uploads/1/3/4/8/134872147/7865c.pdfIn PDF document text
    • http://rasudilikid.mywebcommunity.org/high_concept_character.pdfIn PDF document text
    • http://gisoboxizaza.mygamesonline.org/94273354323.pdfIn PDF document text
    • http://puveputado.sportsontheweb.net/the_spook_who_sat_by_the_door_blu_ray.pdfIn PDF document text
    • https://jubekese.weebly.com/uploads/1/3/1/6/131606730/53681.pdfIn PDF document text
    • https://xiwajuropoji.weebly.com/uploads/1/3/4/3/134371127/panamubopafokejuri.pdfIn PDF document text
    • https://nalovitifa.weebly.com/uploads/1/3/4/6/134600698/burawo_nunoxenu_rutemarerele_kilodikemuj.pdfIn PDF document text
    • https://xefujalebide.weebly.com/uploads/1/3/2/6/132681694/7003121.pdfIn PDF document text
    • https://jufavufopu.weebly.com/uploads/1/3/4/3/134340263/5ba56cb8661.pdfIn PDF document text
    • https://jokiwuruxuwam.weebly.com/uploads/1/3/1/4/131437523/xefawupokebij_xuruwinatirab.pdfIn PDF document text
    • http://veviwumifuvemuz.mypressonline.com/microsoft_sculpt_comfort_desktop_setup.pdfIn PDF document text
    • https://cdn.sqhk.co/galemojubemo/j5hagiE/diriwivajilozuxabum.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://a8fdb364-3865-4521-a36b-e12f4de7752f.filesusr.com/ugd/e20637_597f38a69d0845b298199f83a627d9ca.pdf?index=trueIn PDF document text
    • http://rofuvawitarul.atwebpages.com/81067270155.pdfIn PDF document text
    • https://e0ff2378-281a-4ea3-95ae-419c526fdc99.filesusr.com/ugd/0baf77_3c41d2d6c4824051b5a40a38171259ea.pdf?index=trueIn PDF document text
    • https://f2fffe36-c7b4-4b88-9608-518dc6c14750.filesusr.com/ugd/950b2a_c57dd5d5dbc545a694cd1e72e75634e5.pdf?index=trueIn PDF document text
    • http://gukutimaguvuzum.onlinewebshop.net/sistema_mexicano_de_alimentos_equivalentes_2019.pdfIn PDF document text
    • https://80c8fd16-4cf8-4f9f-b52b-d6c956df8f3b.filesusr.com/ugd/1a94e8_41c656a34ac941dc9979ac55e8bc0273.pdf?index=trueIn PDF document text
    • https://f84ffea9-2755-49c2-9cb5-47ca8b55fe65.filesusr.com/ugd/0adedf_1fd3aed4a57344d390f03c929dc26eba.pdf?index=trueIn 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_off0000d995.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD995 5688 bytes
SHA-256: c78d8437337c6676784b52ac4edc0baad25292d308e6b91e3e138daec6b56623
font_01_sfnt_off0000ecd4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xECD4 10056 bytes
SHA-256: 580f17149b89b0f02fe8a82a3c48eda09af6f2ccf5d8d3dfdb25ea31158fb481

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