Malicious PDF — malware analysis report

Static analysis result for SHA-256 d7eeb2a8c958b99c…

MALICIOUS

PDF

68.1 KB Created: 2021-03-09 17:45:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 3b2a1575f87ad42600bde08569d8f0c8 SHA-1: 654de84d0ae701f6ac4fa629bb6bed48ad734b6f SHA-256: d7eeb2a8c958b99c8eeac82e1fba3123ee6478d4209da998d0446b76802ac679
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://xezojetit.ru/award?keyword=apocryphal+gospels+pdf+download PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4495058/normal_5fce2b516a782.pdfIn PDF document text
    • https://zotorakiv.weebly.com/uploads/1/3/0/7/130739478/gafanafux.pdfIn PDF document text
    • https://rimususoku.weebly.com/uploads/1/3/4/5/134587725/wumeg.pdfIn PDF document text
    • https://fofapisobav.weebly.com/uploads/1/3/4/7/134712410/d4bbb.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4529780/normal_5fd04df5188ac.pdfIn PDF document text
    • https://gitarufimoka.weebly.com/uploads/1/3/4/2/134235546/d6a2668.pdfIn PDF document text
    • https://jewepixixa.weebly.com/uploads/1/3/0/8/130814248/98ea9c8afdc.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4412607/normal_5fdd3dc6c21d4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4464082/normal_5fd06cd76d460.pdfIn PDF document text
    • https://meluwirukumipi.weebly.com/uploads/1/3/1/4/131483006/3221402.pdfIn PDF document text
    • https://xixefofitajeres.weebly.com/uploads/1/3/3/9/133999179/redeta.pdfIn PDF document text
    • https://mepanomelisegil.weebly.com/uploads/1/3/4/8/134899905/fudabonutumetakek.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wokupuwijose.rf.gd/wekagi.pdfIn PDF document text
    • http://luxixeg.epizy.com/modern_indian_political_thought_by_v_r_mehta.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/23e6ccc1-171a-42f9-94bd-d5880fdf1d2e/57015847197.pdfIn PDF document text
    • http://vogumogut.epizy.com/neil_degrasse_tyson_books_to_read.pdfIn PDF document text
    • http://konogorubur.epizy.com/rectifier_circuit_design.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3fdb6aae-bfd7-428f-b89c-4c2ee14dcc60/1513444084.pdfIn PDF document text
    • http://xenuduximowub.epizy.com/guidelines_for_conducting_a_business_meeting.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_off0000cdaa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCDAA 5600 bytes
SHA-256: 3e76ccfc1af6cc9421c4d3f0515ca1f53f248fcd06f01e470c81a29e9325153b
font_01_sfnt_off0000e0ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0CE 10076 bytes
SHA-256: a3e28b756c2d423010d6460f39a804a564a7eef13f17495160d7e24dff3e3aa2

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