Malicious PDF — malware analysis report

Static analysis result for SHA-256 199edabd45b1805b…

MALICIOUS

PDF

75.6 KB Created: 2021-04-04 07:07:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-07
MD5: b2bfb27fb06527de6f894c0112845459 SHA-1: 5af993f9870a7d1d7b2e6454970f4c19d64f16cd SHA-256: 199edabd45b1805be7867d6aa0fd08d28db38f3a7ef393e1bcf48541b6c5b60f
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF was flagged by multiple heuristics, including a critical ClamAV detection and an ML classifier, indicating malicious intent. The PDF contains numerous external URIs, with a primary suspicious URL identified as https://seumenha.ru/wix?keyword=bible+study+reference+guide. The presence of embedded URLs and the overall structure suggest it's designed to redirect users to potentially harmful content, likely for phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

Heuristics 5

  • 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 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://seumenha.ru/wix?keyword=bible+study+reference+guide PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4369161/normal_600c0630d539b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4475209/normal_600295865b320.pdfIn PDF document text
    • http://jijipefifi.iblogger.org/dell_e6410_specs_i7.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4383806/normal_5ff881b67b6de.pdfIn PDF document text
    • http://dressnbuy.com/32185973380pcie2.pdfIn PDF document text
    • http://zawisemuw.iblogger.org/54836289121.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366375/normal_604e7982b48bc.pdfIn PDF document text
    • http://sosunimepewe.22web.org/cdr_jpg_converter_free_software.pdfIn PDF document text
    • http://galoomer.online/dujimudusonexot2kd1.pdfIn PDF document text
    • http://dresdenpharma.ru/how_to_lose_fat_while_weight_training778ds.pdfIn PDF document text
    • http://itanah.space/xefabuginiroguraxikimadaxnpe8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4460263/normal_5ff4b05ab7d7c.pdfIn PDF document text
    • http://jegipebor.iblogger.org/saful.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465263/normal_604af6a270321.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367304/normal_60283fd258765.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/6bc33e83-9588-4fce-bf64-f5d8b0c9d4b0/what_is_real_analysis_math.pdfIn PDF document text
    • https://s3.amazonaws.com/lorerexeg/telelumuzudu.pdfIn PDF document text
    • https://s3.amazonaws.com/vudivuzakal/1575272592.pdfIn PDF document text
    • http://duxuramubot.epizy.com/honda_ruckus_owners_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2319f2af-1630-4870-8533-7e782c043dea/39171241100.pdfIn PDF document text
    • https://s3.amazonaws.com/patotale/49033747073.pdfIn PDF document text
    • https://s3.amazonaws.com/zabejuvijolu/95697269751.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/93f61706-72dc-4ddb-9b31-d0912e7299b5/55020474494.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_off0000e71d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE71D 5268 bytes
SHA-256: 991bafeb721ea8ea166b9e97d71a05d5ef583cc3a9f130e998529ae80d5eaaf9
font_01_sfnt_off0000f927.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF927 11244 bytes
SHA-256: f8cf144f0dc0e1e55363b4be7dfa71b4242debe511c2354224655d43c4284f9a

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