Malicious PDF — malware analysis report

Static analysis result for SHA-256 d3501ba680d81801…

MALICIOUS

PDF

72.8 KB Created: 2021-03-02 21:06:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 57a7a0a0ddbdeceb4e5076fd7448a4d9 SHA-1: 0135720ec8c33ef4881235b4de6dc76aa20f78a3 SHA-256: d3501ba680d818015a4d87fd5acbc39cc23d2c3a6bce94c4a4f16d884794d67f
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://dugedepap.ru/wix?keyword=are+raleigh+bikes+made+in+uk PDF link annotation
    • https://ripilebaxozeduv.weebly.com/uploads/1/3/4/2/134266308/bimari.pdfIn PDF document text
    • https://cdn.sqhk.co/wemorapi/XhfEKa2/masha_and_the_bear._games_activities.pdfIn PDF document text
    • http://zootime.store/todos_los_nombres_de_jehov_y_su_significadomt0kg.pdfIn PDF document text
    • http://kixurox.getenjoyment.net/bobarijozojabowop.pdfIn PDF document text
    • https://cdn.sqhk.co/nasanoroge/iidiggj/magic_snake_toy_diamond.pdfIn PDF document text
    • http://afracheat9.xyz/how_to_use_whirlpool_gold_series_ovendu9he.pdfIn PDF document text
    • http://safijejog.mygamesonline.org/journey_to_the_west_full_movie_in_hindi_dubbed_720p.pdfIn PDF document text
    • http://itclick.info/dilowovazefofimuguvikarsco.pdfIn PDF document text
    • https://cdn.sqhk.co/kululojilo/ijbNgc9/diy_pallet_ideas_for_garden.pdfIn PDF document text
    • https://cdn.sqhk.co/giganopof/udtnFhe/ivanka_trump_age_2019.pdfIn PDF document text
    • http://dodemul.mygamesonline.org/seduzeron.pdfIn PDF document text
    • http://waferaboteb.mypressonline.com/how_to_clean_a_waring_waffle_maker.pdfIn PDF document text
    • http://jedomagisuw.getenjoyment.net/what_does_a_guardian_ad_litem_do_for_a_child.pdfIn PDF document text
    • https://cdn.sqhk.co/xamitarerivu/ahgjhhe/sowogizif.pdfIn PDF document text
    • https://cdn.sqhk.co/fazologim/ijjgiii/multiplayer_snakes_and_ladders_game_a_java_project.pdfIn PDF document text
    • http://jekefidaz.mygamesonline.org/lajawageteruvedemojabifeb.pdfIn PDF document text
    • http://lamaded.mywebcommunity.org/is_sony_rx10_iv_full_frame.pdfIn PDF document text
    • https://cdn.sqhk.co/zafowavo/hiBMTKZ/bird_box_book_review.pdfIn PDF document text
    • http://wigageturuv.mywebcommunity.org/mississippi_drivers_license_number_lookup.pdfIn PDF document text
    • https://cdn.sqhk.co/libobivole/5jdMa74/25728252753.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://rixuroruwe.myartsonline.com/47047489974.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_off0000e059.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE059 5432 bytes
SHA-256: e396bf2af69094af80b4756f4f920686cde36f0d6ca32d771732942584b76573
font_01_sfnt_off0000f29e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF29E 10376 bytes
SHA-256: a76c3f406f9d3e816d322480e48e1196a034a47c903008b6f8d4c177873d8927