Malicious PDF — malware analysis report

Static analysis result for SHA-256 287766f270ffcb93…

MALICIOUS

PDF

71.2 KB Created: 2021-03-25 09:14:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-20
MD5: 489da3ffd6c9bda8bbdb27a0500b4e00 SHA-1: d3c10b65fdb49849a6e807b575292993e1945e6e SHA-256: 287766f270ffcb93a241644b56b44a59782eb9fd332a17b43f2d1cfbb37bdd99
154 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector infrastructure, indicating a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly support its malicious nature. Although no scripts were explicitly extracted, the PDF structure and embedded URLs suggest it's designed to redirect users to malicious content, likely for credential harvesting or further payload delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://dafemum.ru/wix?keyword=m+budget+mobile+hotline In PDF document text
    • https://cdn-cms.f-static.net/uploads/4402032/normal_603d05dc5e41e.pdfIn PDF document text
    • http://uabiomanix.xyz/how_to_inspect_your_new_house_imagestbufu.pdfIn PDF document text
    • https://pikisavejalanab.weebly.com/uploads/1/3/3/9/133986241/wirojexab_fosiwojifupabep_sopibamu_radaj.pdfIn PDF document text
    • http://helpcenterbusiness.xyz/titan_iom_early_bird_menu2tbjd.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4501364/normal_5fe04ac8b03fe.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4427501/normal_6039e5efd48c9.pdfIn PDF document text
    • https://bativazuwa.weebly.com/uploads/1/3/0/9/130969541/5614863.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386620/normal_605430de1138a.pdfIn PDF document text
    • http://nabizutun.iblogger.org/998652148.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4481985/normal_5fe3a17e50b2f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4414339/normal_6009dcb103849.pdfIn PDF document text
    • https://wewiwefiwowofaj.weebly.com/uploads/1/3/4/3/134369931/bbd93f9ae2e.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/gebukil/marksheet_of_10th_class_2015_up_board.pdfIn PDF document text
    • http://besogigususatu.epizy.com/how_much_would_a_first_edition_harry_potter_book_sell_for.pdfIn PDF document text
    • http://dibulazovila.rf.gd/cbr600rr_2004_service_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/libeganot/tonight_west_side_story_spartito.pdfIn PDF document text
    • http://kagabefusexem.epizy.com/sumudeminamiret.pdfIn PDF document text
    • https://s3.amazonaws.com/zafirawit/plant_cell_reports_manuscript_submission.pdfIn PDF document text
    • https://s3.amazonaws.com/sepawi/haunted_house_full_movie.pdfIn PDF document text
    • https://s3.amazonaws.com/novifamigot/why_does_my_ice_maker_keep_clicking.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_off0000d738.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD738 4900 bytes
SHA-256: 78f5f7a6417714e78d407f016398ad4c326eb315ed85731d42f2486a5aad728b
font_01_sfnt_off0000e7c6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE7C6 12116 bytes
SHA-256: 4927ca2809d05978e865e144f41a2165d0513523e043f4f03ed3f9bf27d7dd67

Open this report in the interactive analyzer, or submit your own file for analysis.