Malicious PDF — malware analysis report

Static analysis result for SHA-256 182b49fef04bbe39…

MALICIOUS

PDF

72.9 KB Created: 2021-02-19 18:50:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 65864d3d06c0ca4aa730b4b0ba0dedea SHA-1: 841b9343a64202f334d459b5365b7f4ff29aca34 SHA-256: 182b49fef04bbe39bf7cf437bbfcfe3bebff59a4d3ecb30df26f4edf2973b43c
186 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.
  • 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://druttle.ru/wix?keyword=naranjas+de+angela+mcewan+alvarado PDF link annotation
    • https://cdn.sqhk.co/tutabalero/IwJhgib/nudoj.pdfIn PDF document text
    • https://rimemukevip.weebly.com/uploads/1/3/4/3/134318995/3843123.pdfIn PDF document text
    • https://cdn.sqhk.co/fidinananale/nhdKaha/panezezubefagubalagogesu.pdfIn PDF document text
    • https://kunamugak.weebly.com/uploads/1/3/0/7/130739026/kobur_fizakidobik_pasiwebetofipiv.pdfIn PDF document text
    • https://cdn.sqhk.co/mudinaxape/eZdgigf/disneyland_park_anaheim_tickets_discount.pdfIn PDF document text
    • https://ratipixudaxixix.weebly.com/uploads/1/3/4/4/134472160/3077117.pdfIn PDF document text
    • http://bamigewagozajom.iblogger.org/83680663682.pdfIn PDF document text
    • https://cdn.sqhk.co/zasemewiti/CCHbOid/tigadirasebetavaxovixatef.pdfIn PDF document text
    • https://masodorenos.weebly.com/uploads/1/3/0/9/130969057/ruxifenegedojigu.pdfIn PDF document text
    • https://sebupemisopuba.weebly.com/uploads/1/3/4/7/134706320/94774d.pdfIn PDF document text
    • https://cdn.sqhk.co/folamudoj/gfiige4/27937411873.pdfIn PDF document text
    • https://cdn.sqhk.co/kobadaxo/jeUIZRW/81230311373.pdfIn PDF document text
    • https://cdn.sqhk.co/tojofelekob/QhigiGJ/e_trade_baby_shocked_face.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://bitugoxopezuwu.rf.gd/fesumududofiwirokewe.pdfIn PDF document text
    • https://s3.amazonaws.com/somisilegex/deped_tambayan_curriculum_guide_for_grade_5.pdfIn PDF document text
    • https://s3.amazonaws.com/pirofopafu/mitixipasezi.pdfIn PDF document text
    • https://s3.amazonaws.com/fixararololu/gegemexabejelede.pdfIn PDF document text
    • https://s3.amazonaws.com/divexikav/13262182202.pdfIn PDF document text
    • http://lekinip.epizy.com/7296619299.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_off0000e208.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE208 5456 bytes
SHA-256: 83ae0f9639896d3fb8954dcdeb4b7da13d24e9ae1da9cb0ed37a6cb5b6eebe28
font_01_sfnt_off0000f4a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF4A3 9796 bytes
SHA-256: cb6cd2405fbeedf6bb27e9519b960a0ec40382a619feb9b8c864c77bb7506a12

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