Malicious PDF — malware analysis report

Static analysis result for SHA-256 45ee1e2d480d86f4…

MALICIOUS

PDF

95.7 KB Created: 2021-03-18 13:00:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-20
MD5: 8e990421234ff79d250094a2f6be79f1 SHA-1: d31ed14c35abb2f943f4a557cfb5a60147ab5ce0 SHA-256: 45ee1e2d480d86f444f98e6e92542783fe51c9c5761e3ece8ac8150d69267079
154 Risk Score

Malware Insights

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

The PDF file contains a link that redirects to a known malicious domain, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The ML classifier and ClamAV also flagged this file as malicious, indicating a phishing or trojan attempt. The document body, though heavily obfuscated, suggests a lure related to downloading a 'Whole30 book pdf'. No scripts were extracted, but the presence of malicious links strongly suggests the intent is to lead the user to a malicious site for further compromise.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • 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/strik?utm_term=whole30+book+pdf+download In PDF document text
    • http://ita-fitness.fun/red_rose_wallpaper_images4691z.pdfIn PDF document text
    • https://cdn.sqhk.co/maxevurux/kjehf8z/short_film_skin_oscar.pdfIn PDF document text
    • http://fruittea.space/jefofagawa2q7jc.pdfIn PDF document text
    • http://pimebujeben.66ghz.com/graduation_sheet_cake_costco.pdfIn PDF document text
    • https://cdn.sqhk.co/jogowijalaro/z57ifIP/furafape.pdfIn PDF document text
    • https://cdn.sqhk.co/tezofugowura/biamQja/family_chantel_siblings_ages.pdfIn PDF document text
    • http://iciapp.xyz/4908611564izw3m.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386595/normal_604693d63f8ec.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385421/normal_6011ec11368c0.pdfIn PDF document text
    • http://circleshtang.xyz/blackbird_play_analysisarjff.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476150/normal_6049e957bbe19.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4382190/normal_5ffcf56844d01.pdfIn PDF document text
    • http://55571.ru/141240291128lb70.pdfIn PDF document text
    • http://idealica-italiaofficial.site/is_beats_solo_1_wirelessser9e.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/zuguvoxoki/blackbird_sheet_music_piano_free.pdfIn PDF document text
    • https://s3.amazonaws.com/vovuzize/dexubatikup.pdfIn PDF document text
    • http://pidusuzelaju.epizy.com/referencias_bibliograficas_apa_de.pdfIn PDF document text
    • https://s3.amazonaws.com/wetevali/amazon_kindle_cloud_reader.pdfIn PDF document text
    • https://s3.amazonaws.com/xafaxotaful/4660807610.pdfIn PDF document text
    • https://s3.amazonaws.com/dovulavavo/android_sdk_path_mac.pdfIn PDF document text
    • http://zuraravata.epizy.com/9120778758.pdfIn PDF document text
    • http://jefesati.rf.gd/72830234146.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00012a97.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12A97 5128 bytes
SHA-256: 8a1ff4825e47eaf959f26a152eead771e9bd151ac72017e3aaa1f9dd52b546e2
font_01_sfnt_off00013c11.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13C11 11840 bytes
SHA-256: 52c3cad57400881de14ad58cf6a0584024a71d6c1e7102457b47983954a0efa3
font_02_sfnt_off00016390.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16390 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

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