Malicious PDF — malware analysis report

Static analysis result for SHA-256 006545d55d0d6935…

MALICIOUS

PDF

78.9 KB Created: 2021-03-19 21:53:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-13
MD5: 1cd7c8158bd60e99f859aa1767bd14e4 SHA-1: c2b16052877a4af92844b339c07808d7634e0b31 SHA-256: 006545d55d0d6935c184cb77f1b2af26dab3991e51a9a7d355870b5eac3554f6
156 Risk Score

Malware Insights

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

The PDF contains numerous external links, many pointing to Weebly-hosted PDFs, suggesting a link farm or SEO manipulation tactic. The ClamAV detection and ML classifier indicate malicious intent, specifically identified as phishing. While no scripts were directly extracted, the PDF structure and embedded URIs are indicative of malicious activity designed to redirect users to potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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 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.
  • 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://resalured.ru/strik?utm_term=40+rules+of+love+elif+shafak+review PDF link annotation
    • https://taxusuxegob.weebly.com/uploads/1/3/3/9/133997122/suwosu.pdfIn PDF document text
    • https://fumabufoduf.weebly.com/uploads/1/3/5/3/135313851/500625.pdfIn PDF document text
    • https://zugatuwedi.weebly.com/uploads/1/3/0/8/130874050/485509.pdfIn PDF document text
    • https://magalezofutik.weebly.com/uploads/1/3/4/5/134599277/8647989.pdfIn PDF document text
    • https://jevokave.weebly.com/uploads/1/3/4/2/134266272/bagewagixopetax-wodipe-rasuk-nojajalawijega.pdfIn PDF document text
    • https://vabeliguteziji.weebly.com/uploads/1/3/1/3/131379360/8084828.pdfIn PDF document text
    • https://sawebegiwe.weebly.com/uploads/1/3/4/7/134706463/99b7379dbc2.pdfIn PDF document text
    • https://dubelife.weebly.com/uploads/1/3/4/3/134379826/c15788.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/569109c3-7dbe-480d-a10a-fc2202be5827/how_to_make_alexa_do_a_fart_noise.pdfIn PDF document text
    • https://80c8fd16-4cf8-4f9f-b52b-d6c956df8f3b.filesusr.com/ugd/1a94e8_2bbfb65fe6c7400589ad3bf7924910c7.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/mejawiwomak/xametomazabugurofetox.pdfIn PDF document text
    • https://s3.amazonaws.com/fatisake/14581045758.pdfIn PDF document text
    • https://s3.amazonaws.com/woxojuxafopuv/tv_program_guide_sydney_tonight.pdfIn PDF document text
    • https://s3.amazonaws.com/dazovosugev/hp_laserjet_p3015_printer_error_59.60.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/098b2355-86a7-4b7b-b9b2-d86e6b4d140d/how_to_use_pioneer_bluetooth.pdfIn PDF document text
    • https://466f9527-ada3-48b4-ac0c-4ba5546996ca.filesusr.com/ugd/a4b6b9_9b6c9fda9c77418daf6fd01d88b37239.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/feseni/renajakeviluvugixolawu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d66c83e9-1cf7-4a30-a253-2a5136fa39b2/7650534085.pdfIn PDF document text
    • https://s3.amazonaws.com/faxaxos/corporations_have_a_role_in_establishing_their_communities.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a8c8c4a8-d9fa-408c-b158-d235a73aaa16/kiwivobewirevab.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/37c8deaa-3ef6-4d8d-b575-a14cee105d19/ap_human_geography_class_website.pdfIn PDF document text
    • https://s3.amazonaws.com/pisik/zeriza.pdfIn PDF document text
    • https://s3.amazonaws.com/ziwuvijevo/what_is_the_most_dangerous_part_of_new_york_city.pdfIn PDF document text
    • https://s3.amazonaws.com/wurivuve/willy_wonka_and_the_chocolate_factory_streaming_australia.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_off0000f868.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF868 5208 bytes
SHA-256: c57c419b2cea06062e239282c654fead40065a497f23fe4892c2da991f8bb026
font_01_sfnt_off00010a2d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10A2D 10564 bytes
SHA-256: e8f9f13165203dac154c222b6c68ebb92175c5e4e7e9f2dcbbc1efaf60096463

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