Malicious PDF — malware analysis report

Static analysis result for SHA-256 6d7c44f83b7e7c12…

MALICIOUS

PDF

72.9 KB Created: 2021-02-26 20:53:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 4a70d851513a55f8e2dc8043b59f3c09 SHA-1: a67ce84e14bdcbf99fccf3672343b7bdd2e2edb7 SHA-256: 6d7c44f83b7e7c12f17849b70165431c45fa91c833bcb6aa91c76b845668a4d3
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • 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 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://golowaki.ru/award?keyword=what+is+the+best+book+on+servant+leadership PDF link annotation
    • https://cdn.sqhk.co/wazafanez/lYhdejd/rubadunejutet.pdfIn PDF document text
    • http://lazujifoxupa.getenjoyment.net/24753845732.pdfIn PDF document text
    • https://cdn.sqhk.co/zofukumane/ZDpigji/nvidia_shield_gamestream_supported_games.pdfIn PDF document text
    • http://rexonina.medianewsonline.com/mary_poppins_cast_2019_imdb.pdfIn PDF document text
    • http://sugameloxufe.mywebcommunity.org/92252272136.pdfIn PDF document text
    • http://nunajurum.iblogger.org/navy_ball_dress_code.pdfIn PDF document text
    • http://fomijegi.mypressonline.com/how_to_remove_pimple_spots_at_home.pdfIn PDF document text
    • https://cdn.sqhk.co/wixexozesila/W42Begj/go_guys_ultimate_knockout_racing_3ds.pdfIn PDF document text
    • https://cdn.sqhk.co/bowevuva/jYihcgi/winchester_defender_1300_review.pdfIn PDF document text
    • http://nabavawuzafurur.mygamesonline.org/how_much_does_a_catalytic_converter_cost_for_a_subaru.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zevusup.atwebpages.com/68925146229.pdfIn PDF document text
    • https://s3.amazonaws.com/bejikefowu/21650568741.pdfIn PDF document text
    • http://ziwilud.epizy.com/chennai_city_route_map_free.pdfIn PDF document text
    • http://bazobajinazar.rf.gd/sesemogimudepi.pdfIn PDF document text
    • http://beruleruz.rf.gd/fitarajibimukodezazedaw.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_off0000e187.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE187 5324 bytes
SHA-256: 73b57320a59043e9d4ac5e5de6fa9f88add393c6e5589271af036fd8f5d54cb0
font_01_sfnt_off0000f3a5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF3A5 10176 bytes
SHA-256: e90c99bd535d3d9baae8ed28e70f3247bbb53b79ddb9d945b25fe07b0d4f0635