Malicious PDF — malware analysis report

Static analysis result for SHA-256 48a86a27e7fe8869…

MALICIOUS

PDF

69.6 KB Created: 2021-03-02 11:51:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 171cf38919dbd4904c4f2fe588bc66d2 SHA-1: e3c49aa5a3e1c609b576fe496d7cb84d5f0cfa45 SHA-256: 48a86a27e7fe8869558bb70529d687619e04f894fed53d314a85bdfef9bd8f3a
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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
  • 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://nipisod.ru/wix?keyword=jet+bandsaw+guide+blocks PDF link annotation
    • http://nabenopavaz.iblogger.org/41735669839.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4373755/normal_5fcdb0ec23c71.pdfIn PDF document text
    • https://denoxexulove.weebly.com/uploads/1/3/4/4/134457588/8281924.pdfIn PDF document text
    • https://visofebofoxofub.weebly.com/uploads/1/3/0/8/130814652/7778537.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4449184/normal_602cadd698729.pdfIn PDF document text
    • http://barbanapoli.moscow/78405902650qflkm.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4422385/normal_5ff658f616675.pdfIn PDF document text
    • http://laithub.pro/wasujubtgnt.pdfIn PDF document text
    • https://terojejiw.weebly.com/uploads/1/3/5/3/135348369/3240433.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4455377/normal_5fe99f524ea70.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4423780/normal_5fdc084589338.pdfIn PDF document text
    • http://molopew.22web.org/66050750205.pdfIn PDF document text
    • http://snegny.com/42443366217qg0aq.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4462056/normal_601b03a57a9e9.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4387035/normal_5fc95f289080c.pdfIn PDF document text
    • https://mafenipo.weebly.com/uploads/1/3/4/8/134879688/447ff54c269ed.pdfIn PDF document text
    • http://fb-ig-violation.com/systemic_juvenile_idiopathic_arthritis_guidelinesb45on.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371240/normal_601abf79a7214.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4453142/normal_60141a09d96cd.pdfIn PDF document text
    • http://kuroramogesok.iblogger.org/8407065582.pdfIn PDF document text
    • http://rolopigabetitu.scienceontheweb.net/what_is_base_rate_neglect_example.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vezoxonu.epizy.com/kuzuwimegasaw.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_off0000d1f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD1F1 5296 bytes
SHA-256: bc5011077fb31116772d96ae9cf65f5203b4f0a9246144ff04d0a211feef87dd
font_01_sfnt_off0000e41c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE41C 10368 bytes
SHA-256: 2f053a40af69ebebd242cd214a7427d18fd5a35524772f6cbcccd2875cc7c4ac

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