Malicious PDF — malware analysis report

Static analysis result for SHA-256 c542b5dafd339f28…

MALICIOUS

PDF

72.7 KB Created: 2021-03-08 08:07:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 67da0b5776655d199a3c4ffb628c3de5 SHA-1: da11b09ed7d8b416f539ce2054d2434511d6f1ca SHA-256: c542b5dafd339f2814c705ca770f70efc8a1abb682e17c745cfb69a1dba2479e
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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/wix?keyword=etq+in1800i+manual PDF link annotation
    • https://cdn.sqhk.co/dedomafub/XhhSUii/sazod.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366331/normal_5ffeadaac56d3.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4424347/normal_60021c548cc7c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410002/normal_60205b7015a71.pdfIn PDF document text
    • https://cdn.sqhk.co/soziwariru/ysrgfMw/drum_pads_beat_maker_go_apkpure.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454811/normal_600a5cbc06117.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4478928/normal_5fc69e24b8794.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4484355/normal_60109c6f23bad.pdfIn PDF document text
    • https://cdn.sqhk.co/tulotunofuz/5jc9S3v/kokikupipivol.pdfIn PDF document text
    • https://cdn.sqhk.co/rikopekela/gjA6Fia/iva_chile_2019_calcular.pdfIn PDF document text
    • https://cdn.sqhk.co/xonipavu/gUjcggw/jackpot_world_free_vegas_casino_slots.pdfIn PDF document text
    • https://cdn.sqhk.co/zanaforare/ZiatxYv/jawenajusonixirita.pdfIn PDF document text
    • https://cdn.sqhk.co/muluxodipoto/ggWthb8/sedulenom.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4387412/normal_5fca86303f274.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/0738a64b-c76d-4f15-8333-3417a23a0800/pablo_neruda_poemas_de_amor_en_espanol.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/40529be9-7b6b-411a-a602-297e9ac07eeb/34269089908.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/def2e594-992f-4544-8baf-fb4ec936047c/what_are_some_common_latin_phrases.pdfIn PDF document text
    • https://6b54b0b2-91db-43cc-88c8-bbc4f7e20b37.filesusr.com/ugd/a773aa_762783f0ce6141e8a5b0f616a9eca35c.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/b5d60990-4a8f-4940-95db-9b040e2e55f1/39116501075.pdfIn PDF document text
    • https://5c71d6b4-13b5-43a2-97a4-9a0eba4d0f4d.filesusr.com/ugd/0f1814_5060ba5158f247b78a6d5bde3b7e61f9.pdf?index=trueIn PDF document text
    • https://09ec9d85-9312-4337-94d0-b84080e05f2e.filesusr.com/ugd/ac0094_00a1b54aae10465e91ee3eee6cf59048.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/fced4e27-9af3-49ae-9012-cb9875e9a8ab/pidanipomenawaxogaxizagam.pdfIn PDF document text
    • https://6184de0c-c318-42a7-882e-c5ddc63b817d.filesusr.com/ugd/1c8c1e_125ac38624354975a81465d87d8eb2d6.pdf?index=trueIn 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_off0000e1f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE1F4 5028 bytes
SHA-256: f53d801f9060d93feaa340d437764f0d053f17adb82c93d3daf39238c34c455b
font_01_sfnt_off0000f306.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF306 10196 bytes
SHA-256: 02155799ea8fa9ed7143053cc0b317960c718875881b3e5545b1e5ed17b70c6a

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