Malicious PDF — malware analysis report

Static analysis result for SHA-256 ab02ea5edb60729e…

MALICIOUS

PDF

48.7 KB Created: 2020-10-31 13:28:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 3ad980e91cd90787f481729f2cad1082 SHA-1: d97df56fdfdf276d4aac4d18f2fcf978414ee13c SHA-256: ab02ea5edb60729ede6e0c81586675b023171bfebd36373f4527bf5490489e16
94 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • 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://ttraff.me/123?keyword=michigan+maple+block+company+history In PDF document text
    • https://cdn-cms.f-static.net/uploads/4366374/normal_5f911e327b26c.pdfIn PDF document text
    • https://vodipewelo.weebly.com/uploads/1/3/1/6/131637384/tewazol.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4405193/normal_5f974d3753f0f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366317/normal_5f89e5ca38bf1.pdfIn PDF document text
    • https://pitimonajavigo.weebly.com/uploads/1/3/1/3/131383860/kinexefanu-xaxuf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368246/normal_5f99483ff3754.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4402938/normal_5f9cbec59dc97.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383929/normal_5f93fc95e0d75.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376601/normal_5f91c555c1209.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0499/6123/8680/files/pusoxasokag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3375/4773/files/zadie_smith_generation_why_summary.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0500/9398/1853/files/52346633603.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0501/1682/1157/files/electrochemistry_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3066/6651/files/35770982796.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7066/8448/files/kizoduvojifemego.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0505/2655/2264/files/download_cwm_recovery_apk.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_off00007cda.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7CDA 5660 bytes
SHA-256: 0c8ee22fa97c516ee91b3df12fc51d32014d9f6166bc604d4b3c6600c06a7afe
font_01_sfnt_off00009003.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9003 10928 bytes
SHA-256: 4caeb28b77ebef9bb15ae8d3bb6a8171b748d62c03d9ae4ed88a11138baee269

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