Malicious PDF — malware analysis report

Static analysis result for SHA-256 9e609a586cb592ac…

MALICIOUS

PDF

83.6 KB Created: 2021-03-20 06:02:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-20
MD5: 7c9ea7f0be4aafff54885c4679874e38 SHA-1: 82760f121d171b4e7992395b0338147c0b9034ff SHA-256: 9e609a586cb592ac28c108289705fe79705f2762a103d26421e44ac37be21411
154 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing indicating it links to known malicious redirector infrastructure. The primary malicious URL identified is https://yafferge.ru/award?keyword=berliner+platz+4+neu+h%25C3%25B6rtexte+pdf. While no scripts were explicitly extracted, the PDF structure and the malicious link strongly suggest an attempt to lure the user to a compromised site, aligning with phishing or malware delivery tactics.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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/award?keyword=berliner+platz+4+neu+h%25C3%25B6rtexte+pdf In PDF document text
    • https://cdn-cms.f-static.net/uploads/4380543/normal_5fd287ec6ee87.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4459794/normal_6009a4c6595d4.pdfIn PDF document text
    • http://jekenufakewe.mypressonline.com/what_type_of_oil_does_a_husqvarna_push_lawn_mower_use.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417138/normal_5fe3c992b9eb8.pdfIn PDF document text
    • http://lajodibibodi.getenjoyment.net/antenna_free_book.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4392209/normal_5ffaa706048c3.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/leributafa/canopic_jars_fact_sheet.pdfIn PDF document text
    • https://s3.amazonaws.com/dofufiri/91813251817.pdfIn PDF document text
    • https://s3.amazonaws.com/zaxawetawupo/safe_church_policy_baptist.pdfIn PDF document text
    • http://wusozupit.myartsonline.com/duxawadugedajiditipix.pdfIn PDF document text
    • https://s3.amazonaws.com/xeruxaxer/xubuwuni.pdfIn PDF document text
    • https://s3.amazonaws.com/rivazixexuguri/waveguide_evanescent_mode.pdfIn PDF document text
    • https://s3.amazonaws.com/tixedujegibex/70321975246.pdfIn PDF document text
    • https://s3.amazonaws.com/wolawatin/bivapurub.pdfIn PDF document text
    • https://s3.amazonaws.com/diwitapezu/picture_of_bed_bug_stains_on_sheets.pdfIn PDF document text
    • https://s3.amazonaws.com/kovilowab/rexawilimiki.pdfIn PDF document text
    • https://s3.amazonaws.com/fakuguvil/brazil_vs_germany_2002_formation.pdfIn PDF document text
    • https://s3.amazonaws.com/gosete/gw2_artificer_crafting_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/xetasif/love_test_calculator_app_free.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_off000105b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x105B4 5344 bytes
SHA-256: f19954ccc6f09328a70b9ebcf174dd67085c4b301177810a781db9cb56e1ebba
font_01_sfnt_off000117b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x117B3 12036 bytes
SHA-256: 834702d33e4599656532a928243aac691fbe139177afa31f9ccdfb085253404a

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