Malicious PDF — malware analysis report

Static analysis result for SHA-256 8680e86fa151a88d…

MALICIOUS

PDF

66.5 KB Created: 2020-09-29 19:56:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: c78a003d76430bd148464ee8a9ad4c66 SHA-1: 19f3cf44f0f0c2391862884c48d95ff9a2e7cd22 SHA-256: 8680e86fa151a88db701a82ff523b6d5d2625ebb49321d9a271e87a8fa330d22
94 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ggtraff.ru, which is highly indicative of a phishing or malware distribution attempt. The ML classifier also flagged this PDF with high confidence. The embedded URL is the primary indicator of malicious intent, likely serving as a lure to a malicious site.

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://ggtraff.ru/strik?keyword=bodo+norway+map+pdf In PDF document text
    • http://files.angelicaatelier.com/uploads/1/3/1/4/131483662/todufapanuwedeli.pdfIn PDF document text
    • http://files.1orus.com/uploads/1/3/1/6/131637496/2b530bf9a165.pdfIn PDF document text
    • http://files.negsbestthing.com/uploads/1/3/2/8/132815961/riwemuto.pdfIn PDF document text
    • http://files.ignitecities.com/uploads/1/3/1/8/131856456/4e124e1f02f5016.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/1/0430/0609/9605/files/niroxigamido.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0454/4610/3198/files/bloody_khooni_monday_song.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6893/2767/files/website_icon_set_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/125d834c-1b75-4a00-9a2e-c4ea870bc137/69502196035.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/48ee6109-8665-4da2-9b7a-44474ee8b899/navozolo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/83068fcf-d881-4a84-ab98-64b492630912/gidad.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_off0000b991.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB991 5220 bytes
SHA-256: 64ba76dbee4e9c6eaff655c94d902c0651d545b38da089f4a9ef09e6ad2e8ebb
font_01_sfnt_off0000cb5b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCB5B 16144 bytes
SHA-256: 28c6823776b2943faeee06c57059f32719809c200ddb054f7e04840cc59a9a69