Malicious PDF — malware analysis report

Static analysis result for SHA-256 06acf9c822a3f647…

MALICIOUS

PDF

75.3 KB Created: 2021-02-26 20:29:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-03
MD5: 9ba45a93a4261df9bf6994cceda63b81 SHA-1: 7e0146f85642459a47925ba67c8add179e19ed8b SHA-256: 06acf9c822a3f64787649923d27f6160c64ce03c2630778489aa1ba6c9971156
184 Risk Score

Malware Insights

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

The PDF contains embedded links, with one specifically identified as a malicious redirector. The ML classifier and ClamAV detection strongly indicate malicious intent. The document body, though partially obfuscated, contains text related to biblical texts, likely a lure to encourage clicking the malicious URL.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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/123?utm_term=what+are+the+75+books+removed+from+the+bible In PDF document text
    • http://hellesypakk.online/free_printable_attendance_forms_for_teachers30rie.pdfIn PDF document text
    • http://boost-store.net/76267709752sl9w5.pdfIn PDF document text
    • https://cdn.sqhk.co/jugomuzuteb/Tkjdiga/vademomal.pdfIn PDF document text
    • http://xalelokepevidon.iblogger.org/the_heiress_chinese_drama_eng_sub_ep_11.pdfIn PDF document text
    • http://meetraisins.club/hp_update_software_utility_failed_vistaws48q.pdfIn PDF document text
    • http://vonezejavej.22web.org/53412432717.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/mefadedosuw/yantam_marathi_song_video.pdfIn PDF document text
    • http://penoputibilexo.rf.gd/jutujemiwazovogizilatutij.pdfIn PDF document text
    • http://gurepabe.epizy.com/elastomeric_nitrile_rubber_insulation_sheet.pdfIn PDF document text
    • http://waboxizolomove.rf.gd/casio_svpam_fx-_991ms_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/nigimul/63997739808.pdfIn PDF document text
    • http://riramemixezu.epizy.com/13189502394.pdfIn PDF document text
    • http://zulonojaminipe.rf.gd/3470045619.pdfIn PDF document text
    • http://nazifaba.rf.gd/10592837516.pdfIn PDF document text
    • http://wekumut.epizy.com/wawere.pdfIn PDF document text
    • https://s3.amazonaws.com/tuxalowafokuvo/83893940137.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_off0000e816.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE816 5628 bytes
SHA-256: 501703f7ed650859df49b3085b46ac04b6090bf214fad11fc6127a40a3b35e6d
font_01_sfnt_off0000fb2a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB2A 10740 bytes
SHA-256: 710551a03d42da036d43b75ba5d61281ff383d497b5a70502edc66585b40e0d8

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