Malicious PDF — malware analysis report

Static analysis result for SHA-256 702c8d17b9adfe97…

MALICIOUS

PDF

73.0 KB Created: 2021-02-26 02:59:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 8ed268e635608b6d70a329ce89d3b4aa SHA-1: 97bd5aeb845012e1c356ce0d2952f1de3239bccd SHA-256: 702c8d17b9adfe97ac0bd6d3e6bb43b8dc963ec37b1e0083ff717e9f76c837f7
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://baarspo.ru/award?keyword=how+to+clean+top-o-matic+cigarette+machine PDF link annotation
    • https://cdn.sqhk.co/runetonorox/diamjfE/videxazagilum.pdfIn PDF document text
    • https://latitatuforuza.weebly.com/uploads/1/3/1/3/131398212/6bdb33b2.pdfIn PDF document text
    • https://cdn.sqhk.co/jabosuve/bTjcYAb/xaveberukidezexitu.pdfIn PDF document text
    • https://cdn.sqhk.co/xemugugafot/xjhkRc4/classcraft_game_sign_in.pdfIn PDF document text
    • https://cdn.sqhk.co/xafemepino/ggibiec/34947057837.pdfIn PDF document text
    • https://vonemiwez.weebly.com/uploads/1/3/0/7/130776812/dazupole.pdfIn PDF document text
    • https://cdn.sqhk.co/nozelenid/Xichbib/t_mobile_tv_go_prihlaseni.pdfIn PDF document text
    • https://cdn.sqhk.co/zujijivopuju/rhh7uPr/uno_card_reverse_cards_uno_rules_game.pdfIn PDF document text
    • http://jiwujut.iblogger.org/how_to_program_my_liftmaster_garage_door_opener_remote.pdfIn PDF document text
    • https://mapunexi.weebly.com/uploads/1/3/3/9/133999872/a0b89917784612b.pdfIn PDF document text
    • https://cdn.sqhk.co/tefozakozup/xISpgg4/evacuated_solar_tubes_nz.pdfIn PDF document text
    • https://cdn.sqhk.co/kufusivekogo/jiT9jcT/segudixubag.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/badodemebo/pagoxo.pdfIn PDF document text
    • http://vinetewexe.epizy.com/41518803750.pdfIn PDF document text
    • https://s3.amazonaws.com/fonibinaraj/belaposubevavejaku.pdfIn PDF document text
    • http://bekujefil.epizy.com/constantly_risking_absurdity_questions_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/rixevozajixezos/xomab.pdfIn PDF document text
    • https://s3.amazonaws.com/jeworurowam/access_to_patient_information_program.pdfIn PDF document text
    • http://kumobeba.epizy.com/mufumizefiwomubaruk.pdfIn PDF document text
    • http://sedoguzod.rf.gd/chrome_canvas_performance.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_off0000e28a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE28A 5256 bytes
SHA-256: 4a9a7c8c6caa27490f0b7f18aace95c05ed0d11781419cf1ac4e9499a275cf58
font_01_sfnt_off0000f455.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF455 10080 bytes
SHA-256: 3c1de3356586263f5c63f15c8d7f99b1ce369e59c16319c78bde3b1b5b98bb1e

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