Malicious PDF — malware analysis report

Static analysis result for SHA-256 be34dfe374c3c111…

MALICIOUS

PDF

80.2 KB Created: 2021-03-02 07:11:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-16
MD5: cbe85f8a4c75758f0f25b11502762fbf SHA-1: e1946abbed891b1dca8d83726b0ef03b0d6f61eb SHA-256: be34dfe374c3c111138301ca2003c83d6291790f259c84623a60f7e31da08e56
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, indicating an attempt to lead the user to a harmful site. The ML classifier and ClamAV detection strongly suggest malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URLs point towards a phishing or redirection attack, likely leveraging a PDF exploit to achieve initial execution.

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
  • 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://yafferge.ru/123?utm_term=how+to+replace+zephyr+range+hood+light+bulb In PDF document text
    • http://kigurumi.org/zadurawevogosewegasfuyvb.pdfIn PDF document text
    • http://kneeksi.ru/google_excel_sheet_apkt0jop.pdfIn PDF document text
    • http://lizoguxumugef.mywebcommunity.org/how_to_learn_animation_for_beginners.pdfIn PDF document text
    • http://pogadai.xyz/donjoy_shoulder_stabilizer_brace_instructionstiirb.pdfIn PDF document text
    • http://sipipewawezizuf.getenjoyment.net/64712638742.pdfIn PDF document text
    • http://girlita.space/touhoumon_another_world_guidebf29m.pdfIn PDF document text
    • https://puwulafu.weebly.com/uploads/1/3/5/3/135329465/20127ec.pdfIn PDF document text
    • http://jekefidaz.mygamesonline.org/how_long_does_wonder_week_leap_10_last.pdfIn PDF document text
    • http://fb-pageunderreview.com/word_swipe_pic_online7qi3u.pdfIn PDF document text
    • http://center-about.com/calibri_bold_regular_font_freeeu2j7.pdfIn PDF document text
    • http://hyipinvest.site/boi_bella_vision_2020_musicyjpup.pdfIn PDF document text
    • http://silver35.ru/new_bedford_guide_school_closingsgu55y.pdfIn PDF document text
    • http://zumanidoxup.medianewsonline.com/sawagefotozujive.pdfIn PDF document text
    • http://instapodarok365.site/31024818074fdu07.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fufudaloxola.onlinewebshop.net/port_greek_latin_roots.pdfIn PDF document text
    • https://s3.amazonaws.com/gazitif/97074008333.pdfIn PDF document text
    • https://s3.amazonaws.com/suxiweke/33302304914.pdfIn PDF document text
    • https://s3.amazonaws.com/mokamoba/alfred_marshall_libros.pdfIn PDF document text
    • https://s3.amazonaws.com/fedure/71186349705.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_off0000fb91.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB91 5504 bytes
SHA-256: 460a107536231e16ba039cbe1b9a0780a2d14cd7ec7bddd30208630feedaf496
font_01_sfnt_off00010e59.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10E59 10780 bytes
SHA-256: 01e2431fdfaa3fd79c2b780fb5eb0905cd0682e609e282c67fadd242682cc793

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