Malicious PDF — malware analysis report

Static analysis result for SHA-256 e75f6cba03776394…

MALICIOUS

PDF

67.5 KB Created: 2020-11-19 08:54:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-26
MD5: f1f94212cbbabd08420cdbd36577ca56 SHA-1: d13fe47effaa53ee30afebf93bce8c1ff03aa0ed SHA-256: e75f6cba03776394e9e44ec7580b6225b94e2b2b00d90d3986737dec38d72e28
154 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing indicating it links to known malicious redirector infrastructure. The embedded URL 'https://ggtraff.ru/strik?utm_term=body+piercing+guideline' is the primary indicator of malicious intent. While no scripts were explicitly extracted, the PDF structure and the malicious link suggest an attempt to lure the user to a harmful site, consistent with phishing or malware delivery.

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://ggtraff.ru/strik?utm_term=body+piercing+guideline In PDF document text
    • https://cdn-cms.f-static.net/uploads/4449618/normal_5fa0e5c070be2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393762/normal_5f93b262cebc1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476147/normal_5fae131775426.pdfIn PDF document text
    • https://fisofomopix.weebly.com/uploads/1/3/4/6/134603918/juxivupapiwudadami.pdfIn PDF document text
    • https://gikusevenax.weebly.com/uploads/1/3/4/5/134529244/1299163.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4484639/normal_5fb584938451c.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/jojitagifuva/francis_of_the_filth_book.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2c687ec8-167c-4d65-bef8-83a561586162/the_summer_i_turned_pretty_movie.pdfIn PDF document text
    • https://s3.amazonaws.com/robumuduluwise/7897768124.pdfIn PDF document text
    • https://s3.amazonaws.com/wonoti/jonilol.pdfIn PDF document text
    • https://s3.amazonaws.com/wejuvono/avid_pro_tools_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/nijosinizo/of_mice_and_men_candy_physical_description.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_off0000cefc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCEFC 5004 bytes
SHA-256: 5ca416d81374ee6012a92c507c5fb63aa6b2eca111335cbfee8f2345b5a68ccb
font_01_sfnt_off0000e01e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE01E 9772 bytes
SHA-256: 755b920753fe1400a720b4755fcf0f5eda7fee9a402e1ca188bf4b3f2a00a96f

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