Malicious PDF — malware analysis report

Static analysis result for SHA-256 9af90ac644a9f7a2…

MALICIOUS

PDF

71.3 KB Created: 2021-03-06 13:42:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: af0ee441354c98cfb3f43e9d2bf3aa4a SHA-1: 2ada2fa2b9a887c2df021f27e1275d6fb34132f6 SHA-256: 9af90ac644a9f7a23f6bf7c5a673a5042dfd938be2d3fddea2046373f8acff76
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

Heuristics 5

  • 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 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/wix?keyword=beckett+racing+collectibles+price+guide PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4383794/normal_5fd1154d9ee54.pdfIn PDF document text
    • http://vizazovabula.mywebcommunity.org/ibn_ul_arabi_books_in_urdu_free_download.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4481839/normal_5fc91f8745e61.pdfIn PDF document text
    • https://gunimesugudux.weebly.com/uploads/1/3/0/7/130776745/gaxobunolidonafu.pdfIn PDF document text
    • http://zisezamerares.mygamesonline.org/descargar_comic_batman_the_killing_joke_espaol.pdfIn PDF document text
    • https://kixasakuzejud.weebly.com/uploads/1/3/5/3/135347884/3553687.pdfIn PDF document text
    • http://jakusavu.sportsontheweb.net/after_we_collided_full_movie_english_sub.pdfIn PDF document text
    • https://pinosapop.weebly.com/uploads/1/3/4/1/134131344/5026717.pdfIn PDF document text
    • https://fofifiso.weebly.com/uploads/1/3/4/6/134613093/jukezogivep.pdfIn PDF document text
    • https://nukivobiwej.weebly.com/uploads/1/3/4/0/134016752/fopexaraj.pdfIn PDF document text
    • http://tomolijoponix.mypressonline.com/savoxevifawirovuxezukode.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4374368/normal_6009377f68da9.pdfIn PDF document text
    • https://fojinotumure.weebly.com/uploads/1/3/0/8/130874368/3285169.pdfIn PDF document text
    • https://fakebomazeb.weebly.com/uploads/1/3/1/4/131453402/womifadifurol_bozoselun_joxaxamevo_zovedek.pdfIn PDF document text
    • https://gusumumonabol.weebly.com/uploads/1/3/0/7/130775475/6772483.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4495390/normal_5fe02b0696cc8.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/niwotipugonuvoz/arishfa_khan_hd_wallpaper.pdfIn PDF document text
    • https://s3.amazonaws.com/tiniruru/fuller_house_episode_guide_tv._com.pdfIn PDF document text
    • https://s3.amazonaws.com/zaxawetawupo/padezus.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/33e919ad-fbfc-43c7-a095-dc995a2072d8/how_much_is_a_2012_camry_worth.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1841f463-43fe-45ff-86a9-723a0adec28c/will_the_wings_of_fire_movie_be_on_netflix.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2605bf06-841d-482b-b933-193ea669ec8e/is_it_going_to_snow_in_eugene_oregon_this_year.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a247a8c3-98d9-4c97-8e00-e1d6e01b5ae7/types_of_structure_in_literature.pdfIn PDF document text
    • http://mojogoralil.onlinewebshop.net/95668598794.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_off0000d915.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD915 5496 bytes
SHA-256: dbd0393cbcb01c1b3a376ca571b8401ca7b709bcc3fd1ca728ce543f28d9b2ab
font_01_sfnt_off0000ebcf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEBCF 10360 bytes
SHA-256: 44df8d708dca66cd00e97fe4702ca2a70c8430bf4b2e323811354021b3739d10

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