Malicious PDF — malware analysis report

Static analysis result for SHA-256 bc53b8683f592974…

MALICIOUS

PDF

67.4 KB Created: 2021-02-13 16:40:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 193caf220b819e1a4d849c76f8dc83d2 SHA-1: 8593b751cd33005e116d18475907b56ad0c2031e SHA-256: bc53b8683f5929741db268b10d9dce46ac7bb77157c9c8c18bdfcf6ef1ca5c76
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://baarspo.ru/wix?keyword=maytag+performa+gas+stove+manual PDF link annotation
    • https://cdn.sqhk.co/kawonidoza/rX6tgcC/78257922848.pdfIn PDF document text
    • https://cdn.sqhk.co/bamazaludez/Fjcjgia/drop_it_off_for_you.pdfIn PDF document text
    • https://cdn.sqhk.co/merodobiweve/hcjbicc/barber_appointment_book_app.pdfIn PDF document text
    • http://nowtorrentz.com/18349826388h6773.pdfIn PDF document text
    • https://cdn.sqhk.co/fujotojaxob/h9idhcB/dragon_ball_z_infinite_world_pcsx2_save_game.pdfIn PDF document text
    • http://goossyy.online/66893501703t2pyn.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4377100/normal_5fce78641a6c2.pdfIn PDF document text
    • https://cdn.sqhk.co/nufopusifa/jigigTr/boat_operator_license_florida.pdfIn PDF document text
    • https://cdn.sqhk.co/jidulopavoji/nhgeggf/shipping_manager_jobs_in_canada.pdfIn PDF document text
    • http://probmaka.tech/wibajaddyj.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4488103/normal_5ff762d6863d5.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4451049/normal_5fed04ba7a52c.pdfIn PDF document text
    • https://cdn.sqhk.co/mudinaxape/1iesjgL/vulejaxosezuzadafifodora.pdfIn PDF document text
    • http://sungo1.space/wotamadipazog10myn.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://mapitixonemo.epizy.com/tajivudufowalefepadabij.pdfIn PDF document text
    • https://s3.amazonaws.com/vojapu/69973740280.pdfIn PDF document text
    • http://xoxejafomi.rf.gd/zugaroburok.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_off0000cb0d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCB0D 5388 bytes
SHA-256: 2e6fb010f99c721d06396e69ef242d07905fcefa87ccc764c6dfb6685066b84b
font_01_sfnt_off0000dd71.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD71 10344 bytes
SHA-256: 14bd3b4617ed550fd8fe44fe4704331d126196fd7eb59e78ca529e2b215e58cc