Malicious PDF — malware analysis report

Static analysis result for SHA-256 202cee5b2437e222…

MALICIOUS

PDF

63.8 KB Created: 2020-11-09 20:16:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-14
MD5: da3e3af3b1642e014a33639da8bcb9f5 SHA-1: 70425677f5ad4dc9b5ba620302efecb10fd45097 SHA-256: 202cee5b2437e2223cd4e800356743e1da2528dc071a661280fe16b9019bb162
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/aws?keyword=examples+spatial+patterns+in+geography'. This URL is the primary indicator of malicious intent, likely serving as a lure for phishing or to download further malicious content. The ML classifier also strongly flagged this PDF as malicious.

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://gettraff.ru/aws?keyword=examples+spatial+patterns+in+geography In PDF document text
    • https://cdn-cms.f-static.net/uploads/4376606/normal_5f8cee9a74725.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413119/normal_5fa46a13117e6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459054/normal_5fa289d5aa24f.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/welanisowari/paddy_chayefsky_network_screenplay.pdfIn PDF document text
    • https://s3.amazonaws.com/kudowo/48079999192.pdfIn PDF document text
    • https://s3.amazonaws.com/tuzamada/xolumewawilapaxarudapoxat.pdfIn PDF document text
    • https://s3.amazonaws.com/zarelusipofox/shintoism_beliefs.pdfIn PDF document text
    • https://s3.amazonaws.com/wonoti/87194862217.pdfIn PDF document text
    • https://s3.amazonaws.com/tawosutosuxi/82859308141.pdfIn PDF document text
    • https://s3.amazonaws.com/mudurixo/c_band_satellite_dish.pdfIn PDF document text
    • https://s3.amazonaws.com/vasofirida/rogewekari.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/10fba9ac-5299-4601-a1fa-fdf33662fa65/terizifujawitufusidoxelob.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_off0000be60.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBE60 5360 bytes
SHA-256: 93f239151b777af698f145961e2551da4bb3ad59e1d168059bdbe4cb7c822b69
font_01_sfnt_off0000d079.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD079 9852 bytes
SHA-256: bedfef70edbe2e5384028cbd25925a43b9979b06168f7c1c851b5a8ff8acaf6a