Malicious PDF — malware analysis report

Static analysis result for SHA-256 c315865260c4272e…

MALICIOUS

PDF

80.8 KB Created: 2021-02-25 18:33:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-22
MD5: b8f176bcb813e4062d4d517a17206cbc SHA-1: 801042122f69ef60f7eaa4a1ce9ab4858c4c145b SHA-256: c315865260c4272e89315ccdcadf25290817c8095dfe97af76b94f51618f89c0
96 Risk Score

Malware Insights

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

The PDF contains an embedded URL that redirects to a phishing-related domain, masquerading as a search result. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URI suggest it's designed to redirect users to malicious content, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • 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://maypoin.ru/strik?utm_term=what+weight+is+bernat+blanket+yarn PDF link annotation
    • https://cdn.sqhk.co/bidusowo/rAhahbg/fojunenizojurab.pdfIn PDF document text
    • http://wivuperafuzo.mypressonline.com/the_lord_of_the_rings_the_hobbit_book_review.pdfIn PDF document text
    • https://cdn.sqhk.co/liripudeb/ib5IjdV/ice_cream_3_horror_game_download.pdfIn PDF document text
    • https://cdn.sqhk.co/kukisigafumi/Bjfbgcy/positive_thoughts_after_heartbreak.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4453129/normal_6003659a84ec5.pdfIn PDF document text
    • https://cdn.sqhk.co/wibezudak/hFieifE/stick_fighter_animation.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4372987/normal_5fc7a7338e37b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4498997/normal_6033bf9b817b4.pdfIn PDF document text
    • https://cdn.sqhk.co/zarifabidit/xR0PjjN/skillmill_treadmill_user_manual.pdfIn PDF document text
    • http://zuvels.xyz/ark_meat_spoiler_modiitux.pdfIn PDF document text
    • https://cdn.sqhk.co/fugovigul/wEjaNQ6/logapuxuxidulurikanewo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4428331/normal_600f9dc83a58a.pdfIn PDF document text
    • https://cdn.sqhk.co/baxotonad/iifjaic/reverse_pacman_unblocked.pdfIn PDF document text
    • http://lojapidabud.mypressonline.com/83503313052.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/rafiralexezol/dipuwosulolutazej.pdfIn PDF document text
    • https://s3.amazonaws.com/naxizugenabi/software_as_built_documentation_template.pdfIn PDF document text
    • https://s3.amazonaws.com/dufekifaral/48252030818.pdfIn PDF document text
    • https://s3.amazonaws.com/kovozenamofox/bluejackets_manual_editions.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_off0000fccb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFCCB 5360 bytes
SHA-256: 0f84c367556e77affe4e640a6d5fc803dec84e3ec80fb1d3f7394395c7928bd7
font_01_sfnt_off00010f1e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10F1E 10888 bytes
SHA-256: 29253c791d3924e20b056ed01706e6c820e932733c94d0053eb1a9b3ffeef07f

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