Malicious PDF — malware analysis report

Static analysis result for SHA-256 5980c9c1ffb63f34…

MALICIOUS

PDF

66.1 KB Created: 2021-02-24 04:11:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: f6f234a6cd2e63b469e4bcde301e45f9 SHA-1: 2f51b6cf38802d2c1f7e34a60cf14792a5901cc2 SHA-256: 5980c9c1ffb63f34b7b837a0cbf4a8b33f4f8abb98b3333b69457b51491044b0
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://yafferge.ru/wb?keyword=new%20testament%20church%20of%20god%20philadelphia In PDF document text
    • https://static.s123-cdn-static.com/uploads/4366987/normal_5ff7d464beebe.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384484/normal_6017402076c59.pdfIn PDF document text
    • https://jinunezig.weebly.com/uploads/1/3/4/3/134308797/wamoguk-gugutikapasol-sonufavopom.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369638/normal_601e42b7139fb.pdfIn PDF document text
    • https://givepatodanino.weebly.com/uploads/1/3/6/0/136097232/047e3d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367299/normal_601e40dcb92bf.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4458144/normal_5febe8d17b44d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4486742/normal_6011342c253ed.pdfIn PDF document text
    • https://sitakubijilu.weebly.com/uploads/1/3/0/7/130776110/1dfa7.pdfIn PDF document text
    • http://idealica-italiauficiale.website/budget_2020_speechmr3r1.pdfIn PDF document text
    • http://lifeshop.pro/manual_wbc_differential_count0xf3a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4416656/normal_5ff405963db5d.pdfIn PDF document text
    • http://subfamjtii.site/fasudelaxadodenuf9p7qq.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426550/normal_5fdc8cca070a3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4473938/normal_6019c7fbcfbb5.pdfIn PDF document text
    • http://1eyvgo.xyz/fajosagoganinepajojozustey.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454558/normal_602221c90b6b6.pdfIn PDF document text
    • http://silvanozito.online/divitogwaumo.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000c1bf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC1BF 5632 bytes
SHA-256: 87419ee367a4931fa34c5e14f62f69cf8d89845e1daec7ed78f7823c7b6db5d8
font_01_sfnt_off0000d4da.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD4DA 10644 bytes
SHA-256: e7ef647ceffad495de2cc88eb314037b2b3554080fe8a668fc813b09fc8436e4

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