Malicious PDF — malware analysis report

Static analysis result for SHA-256 7962c34772a8011d…

MALICIOUS

PDF

70.8 KB Created: 2021-03-03 21:35:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: c0b3d7c6ff26958b1d49e6e54ccedfe4 SHA-1: db2be764a017697f3159bb4760fe747ecf653666 SHA-256: 7962c34772a8011d8554e175253908779a74989e228633722ebffaacd6043956
186 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.
  • 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://druttle.ru/award?keyword=harry+potter+y+la+camara+secreta+pelicula+completa+en+espa%25C3%25B1ol+latino+youtube PDF link annotation
    • https://cdn.sqhk.co/serodozire/dXmjijf/foragiwafitixenudexeli.pdfIn PDF document text
    • https://dovimivezo.weebly.com/uploads/1/3/4/3/134327865/tunuluwazaw-xebanenikam-dulinezakid.pdfIn PDF document text
    • http://tigibisolefora.mygamesonline.org/riello_burner_wont_turn_on.pdfIn PDF document text
    • https://cdn.sqhk.co/tifobebe/PhghaHD/time_to_go_to_mars_and_back.pdfIn PDF document text
    • http://gukabibus.mygamesonline.org/chapter_7_ionic_and_metallic_bonding_test_b_answer_key.pdfIn PDF document text
    • https://cdn.sqhk.co/tiviluluje/PvjfTgc/suxixanawe.pdfIn PDF document text
    • https://cdn.sqhk.co/bimerolu/gijhjjk/kafavipafidigaxiwaduse.pdfIn PDF document text
    • https://xejapekedom.weebly.com/uploads/1/3/4/8/134864907/detipijulatejiz-vajefoz-luredixijidili-verilew.pdfIn PDF document text
    • https://cdn.sqhk.co/woberimi/uj6kIjf/bit_dungeon_2_apk_download.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481411/normal_603d4601ca185.pdfIn PDF document text
    • http://jafoxidulez.mypressonline.com/kekunuronizaxuwopubizija.pdfIn PDF document text
    • https://cdn.sqhk.co/kulukopupiw/ahcWif0/car_part_finder_app.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4419198/normal_5fe8ce1ca8e16.pdfIn PDF document text
    • http://mojenisijita.mywebcommunity.org/how_to_be_a_creative_photographer.pdfIn PDF document text
    • https://sodipojemip.weebly.com/uploads/1/3/5/3/135325099/6754567.pdfIn PDF document text
    • http://vatidenow.medianewsonline.com/94921301944.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://dowafirowelumex.atwebpages.com/how_do_you_set_the_time_on_a_citizen_eco_drive_radio_controlled_watch.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_off0000d35c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD35C 5496 bytes
SHA-256: 3b1f57e3e57cbb4c8a07edb4dc9051fb9c80002d0921c5bcc123ecd585f784d7
font_01_sfnt_off0000e5b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE5B5 11204 bytes
SHA-256: 3a085b4cdcef5ef43aaadbcb7d5efad8f055dc16825b3e3bec672fabd0083173

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