Malicious PDF — malware analysis report

Static analysis result for SHA-256 03ba38f4f9c0a467…

MALICIOUS

PDF

70.4 KB Created: 2021-03-01 02:39:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 420f0aa0fbd21d06d4df2e08d8294b4b SHA-1: 057d1f7b6676e5068d3db41a69d7476af97071d1 SHA-256: 03ba38f4f9c0a4676f4fe32af4d47c1404290e09a8921d8a217102139cc9445a
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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 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://bologen.ru/wix?keyword=a+doll%2527s+house+act+2+discussion+questions PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4495696/normal_5fd713f303726.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4470981/normal_5ffa02bde7930.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4495997/normal_602253447b06c.pdfIn PDF document text
    • https://ratopavitakam.weebly.com/uploads/1/3/4/4/134460251/bobaxuvezusu.pdfIn PDF document text
    • https://cdn.sqhk.co/gugirejol/ejhphaX/36561314317.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4486054/normal_60321c3de90b9.pdfIn PDF document text
    • https://budemarapi.weebly.com/uploads/1/3/1/3/131381681/wiwilu.pdfIn PDF document text
    • https://vozufoge.weebly.com/uploads/1/3/5/3/135346805/bidizun-peperafokawuv-tidalusopipoden.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470533/normal_6009cb21d05d1.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4471234/normal_5fedf8e1bb96e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4468571/normal_5fdd917b85743.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4494868/normal_5ff02ff802e8a.pdfIn PDF document text
    • https://majotowuwirup.weebly.com/uploads/1/3/5/3/135346036/16b78144d7.pdfIn PDF document text
    • https://rogapunuki.weebly.com/uploads/1/3/4/3/134375427/29caafa0ecd262.pdfIn PDF document text
    • https://cdn.sqhk.co/tezofugowura/jibgdhn/camping_near_mexia_tx.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://xezepagonozaniw.epizy.com/twitch_mid_guide.pdfIn PDF document text
    • http://joduzot.rf.gd/48712124128.pdfIn PDF document text
    • http://watawazorino.rf.gd/form_c_registration_of_firm.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_off0000d87b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD87B 5212 bytes
SHA-256: f4deea65bcaba69d73e5d212687a7d20bfb30f3b06cd772ef008abf62d309ceb
font_01_sfnt_off0000ea3b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA3B 10028 bytes
SHA-256: fe22570dfcdd8036941cd640107d3a10438d57971bb0aeb674249471254c10b4

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