Malicious PDF — malware analysis report

Static analysis result for SHA-256 7ee1b6957be1e0d4…

MALICIOUS

PDF

72.5 KB Created: 2021-03-04 05:27:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-02
MD5: 3c389303d0904062d8f21611a12e98a5 SHA-1: bd32c19d85fcbe2d48e5372a1cbaa5c1d0db7387 SHA-256: 7ee1b6957be1e0d43dfbfb89d8998ccc13dbaf8e86bef0f62f2ae1e444a2773d
214 Risk Score

Malware Insights

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

This PDF file is identified as malicious by multiple heuristics and a machine learning classifier. It contains a large number of embedded links, many of which point to potentially malicious redirectors or SEO link farms, such as 'https://crophysi.ru/wix?keyword=orlando+magic+seating+chart+3d' and 'http://reduslim-italiaofficial.site/post_structuralist_feminismn1yrd.pdf'. The document body, though heavily obfuscated, suggests a lure related to 'Orlando magic seating chart 3d', indicating a phishing or scam attempt.

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 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.
  • 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://crophysi.ru/wix?keyword=orlando+magic+seating+chart+3d In PDF document text
    • http://reduslim-italiaofficial.site/post_structuralist_feminismn1yrd.pdfIn PDF document text
    • http://nesorus.mywebcommunity.org/37363893678.pdfIn PDF document text
    • http://kifejuja.medianewsonline.com/what_did_the_12_disciples_of_jesus_do.pdfIn PDF document text
    • http://cancandance.org/windows_10_bootloader_fileul63r.pdfIn PDF document text
    • http://itwomen.space/descargar_motorola_pc_suitel0wig.pdfIn PDF document text
    • http://afracheat5.xyz/342006442872qtu9.pdfIn PDF document text
    • http://dimozakebaba.scienceontheweb.net/pizogigisesi.pdfIn PDF document text
    • http://sagunutu.medianewsonline.com/el_ser_uno_audiolibros_6_ivoox.pdfIn PDF document text
    • https://tipoxuxol.weebly.com/uploads/1/3/0/8/130814923/a1e9c.pdfIn PDF document text
    • http://bapatavusirave.mygamesonline.org/chemistry_ionic_compounds_worksheet_answers.pdfIn PDF document text
    • http://nesebonuvobeju.getenjoyment.net/the_killing_pact_2017.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/gurafoga/aline_barros_consagrao_louvor_ao_rei.pdfIn PDF document text
    • https://s3.amazonaws.com/begijufadi/7479885739.pdfIn PDF document text
    • http://bixozebaxikapos.atwebpages.com/dantes_inferno_original_book.pdfIn PDF document text
    • https://s3.amazonaws.com/jakujakula/4664126219.pdfIn PDF document text
    • https://s3.amazonaws.com/ruzaganog/10084489521.pdfIn PDF document text
    • https://s3.amazonaws.com/tizowodifi/angry_birds_rio_2_song.pdfIn PDF document text
    • https://s3.amazonaws.com/libusamagowuvo/99985126561.pdfIn PDF document text
    • https://s3.amazonaws.com/zetubakuz/amplifier_song_ringtone.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_off0000df61.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF61 5544 bytes
SHA-256: e82f6dd60fa5bcde3834b285274fa3fc9a6d845b5029c202cc959367a74c0a36
font_01_sfnt_off0000f208.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF208 10448 bytes
SHA-256: e130fadb6c62456051d5f68e69e6c1720a34c5e0c9a9f4a2cda64f239abd599f

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