Malicious PDF — malware analysis report

Static analysis result for SHA-256 067f58a69259ba8b…

MALICIOUS

PDF

68.2 KB Created: 2020-12-08 19:24:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-24
MD5: 16ec8ae69f34aa06dadee19253e86bf6 SHA-1: dcd7d85b96cfea5e7a21ae55ad6b98784d587eda SHA-256: 067f58a69259ba8b79ee2b6628ff8b96d511b0aacdc46d578985cd5d5f4e82a3
154 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://gettraff.ru/123?utm_term=olay+age+defying+classic'. This, combined with ML classification and ClamAV detection, strongly suggests a phishing or malware distribution attempt. No scripts were extracted, but the presence of a malicious URL is the primary indicator of compromise.

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://gettraff.ru/123?utm_term=olay+age+defying+classic In PDF document text
    • https://lawagupavuraxap.weebly.com/uploads/1/3/4/6/134616311/wavumulozigeloj.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403406/normal_5f993ef811552.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/divelikubapiwaj/zajemevebewav.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7c23d08a-17d4-4f60-8bec-849668a1332d/6582553418.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cd770298-f23e-4bf1-be9b-51bb7a663975/49499681674.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b1376517-9d7e-4a2c-9822-a82668f19964/26910777424.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc170e692c50b1a1e7b565d/t/5fc846f4e21c7c679ade23ab/1606960884807/sarazamidiralosoxukadeb.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc130cd8787e879896ddc20/t/5fc7383d5060c93fcd798250/1606891582885/tap_tap_builder_unblocked.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc01425c6d96458361db408/t/5fc0db1b3485235c86e68f6b/1606474524994/samsung_sm-g900v_screen_replacement.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc564412bbd7406582491d5/t/5fce904d9d54617cc103e2a5/1607372878434/gem_fusions_maker.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbd04fdb4c4d833b8bec5aa/1606223102750/76591072028.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b870.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB870 6396 bytes
SHA-256: 6be38807af67e103a2a14c9a9e7dfb18d8b95d10176fb4a4e4ae5f1719d8cf89
font_01_sfnt_off0000ce5f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCE5F 5224 bytes
SHA-256: aa65f4833bd1cbe88c93667823d3c500b554c2a413a5b5411355cc6d3d28321c
font_02_sfnt_off0000e047.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE047 10416 bytes
SHA-256: 226b1f9bf41483a90aa913351458931a381e5009e428d69627878d5a4cee2130

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