Malicious PDF — malware analysis report

Static analysis result for SHA-256 e466c5554eeef63a…

MALICIOUS

PDF

69.2 KB Created: 2020-12-20 19:58:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-02
MD5: f08bcd28c5dcb043348ec4457a6fce72 SHA-1: f39b421c2d4d7f7a73f70dfb944bf1886602845b SHA-256: e466c5554eeef63adde9850dc88b8e70ccb314ab6cdfe0bb8f55f5ff8bc85b0c
154 Risk Score

Malware Insights

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

The PDF was flagged by multiple heuristics, including a critical alert for linking to a known malicious redirector. ML classification and ClamAV also identified it as malicious. The embedded URL, 'https://traffmen.ru/aws?utm_term=android+p+developer+options+night+mode', is the primary indicator of malicious intent, likely serving as a lure for phishing or to download further payloads. No scripts were extracted, but the PDF structure itself facilitates the malicious redirection.

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://traffmen.ru/aws?utm_term=android+p+developer+options+night+mode In PDF document text
    • https://savegisat.weebly.com/uploads/1/3/4/6/134609021/rojalilid_femexo_wawirusiwasamiw_wusuj.pdfIn PDF document text
    • https://meramoginatazo.weebly.com/uploads/1/3/4/7/134733336/64cb99725d33124.pdfIn PDF document text
    • https://tolajugim.weebly.com/uploads/1/3/4/6/134647220/5967462.pdfIn PDF document text
    • https://sodefabufu.weebly.com/uploads/1/3/4/4/134473286/e4376d1fc2ef.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/xidulumexi/accordion_sheet_music_ebay.pdfIn PDF document text
    • https://s3.amazonaws.com/kagedatabujo/actualizar_javascript_android.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc380a5bd14ff0dd2ad0ae2/t/5fc88c5643b29e7a5af8ab35/1606978646714/sonuzukudanunesadarab.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc5a5de085bf90c0e1d7acc/t/5fc9637b6c318e3cdc5629ca/1607033724031/bexivegawulaxak.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc27dae5bcb0228a28c7d06/t/5fce09eb5d2e6f3bda62fc78/1607338487723/woodworking_bench_for_sale_canada.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbf55ee08845d0924815e68/1606374896415/netgear_model_7550_frontier.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0e90c27a199023ab56552/t/5fc8196a8bd77935674371db/1606949227938/27516776931.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc168c927a199023ab8f22b/t/5fc3b6019d79364840ff050f/1606661633641/healthspring_tennessee_provider_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/nimuwet/girlz_ink_coupon_code.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_off0000d07c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD07C 5212 bytes
SHA-256: ee2a15c25c077ba7ff97fa81e3a22662c3eed170b7d0bdb5aa256596684c4044
font_01_sfnt_off0000e212.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE212 11332 bytes
SHA-256: 915707e253fef748f61fb8adf22876ee02012cd7554a19c2bdc1194fc7c04144

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