Malicious PDF — malware analysis report

Static analysis result for SHA-256 c5a0632282366f96…

MALICIOUS

PDF

67.5 KB Created: 2020-11-10 22:09:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2022-06-20
MD5: 58357637f55b8e63777472fe893be3e3 SHA-1: f42b2cc2e5aaede74ee6320baed7356082bc0f5f SHA-256: c5a0632282366f96f313578f4d12b883cfedf6a53c471251f28b96bb37d63116
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://trafffi.ru/123?keyword=woh+apna+sa+full+episodes PDF link annotation
    • https://wezukanedipewor.weebly.com/uploads/1/3/4/6/134602888/26aa6a1b641.pdfIn PDF document text
    • https://puniduvete.weebly.com/uploads/1/3/4/3/134341297/b6f9bd.pdfIn PDF document text
    • https://xonuveviriniw.weebly.com/uploads/1/3/0/7/130738603/waxagitor_morasugifujawi_lujinepowop_guguwegifedurol.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369525/normal_5f8b8ba93f434.pdfIn PDF document text
    • https://jikubefu.weebly.com/uploads/1/3/4/3/134318914/8106171.pdfIn PDF document text
    • https://fogiboxumejak.weebly.com/uploads/1/3/4/5/134518377/14f1971868.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/vetamedisoz/pixozevevowekitivejileruk.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f7dca835-e274-4ff8-97d4-b22c79e957f2/martha_stewart_pot_roast_dinner.pdfIn PDF document text
    • https://s3.amazonaws.com/bakoloj/26205872608.pdfIn PDF document text
    • https://s3.amazonaws.com/dazinibonofobi/samsung_hw_f550_soundbar_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/paxivogedewilu/zinines.pdfIn PDF document text
    • https://s3.amazonaws.com/ratixifo/certainty_effect.pdfIn PDF document text
    • https://s3.amazonaws.com/tefelaj/cube_world_cheat_engine_item_codes.pdfIn PDF document text
    • https://s3.amazonaws.com/wozibap/27778870896.pdfIn PDF document text
    • https://s3.amazonaws.com/susopuzupure/water_pollution_effects_and_causes.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000bde1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBDE1 4848 bytes
SHA-256: 9a882610c0278cf859d68c1301e02d580bad2a30ab8ef7dcb0c901841efb4e86
font_01_sfnt_off0000ce5e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCE5E 10716 bytes
SHA-256: 6b5577163758b9158e8e07197844ecd40ba6b4535e0bd52795cae91fbb53825e
font_02_sfnt_off0000f326.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF326 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2

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