Malicious PDF — malware analysis report

Static analysis result for SHA-256 6879dad6452a3cb9…

MALICIOUS

PDF

33.7 KB Created: 2020-11-06 04:20:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27
MD5: bbccd164498bce00236bc2719fe9a8da SHA-1: e526cb6540943a66fef76abbe58269d671ab642f SHA-256: 6879dad6452a3cb96fa040e01cc5b03fccad8c93dde27537027d73ee42deddcc
94 Risk Score

Malware Insights

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

The PDF file contains a lure for "Swarovski earrings uk" and embeds a link that redirects to the malicious domain ggtraff.ru. This domain is flagged as a known malicious redirector, indicating a phishing or malware distribution attempt. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted, but the embedded link is the primary indicator of malicious intent.

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/aws?keyword=swarovski+earrings+uk In PDF document text
    • https://cdn-cms.f-static.net/uploads/4405414/normal_5fa419bb34a13.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383322/normal_5f8bb0a7e364f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4404108/normal_5f92a53a065eb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374852/normal_5f9276ac7371b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387233/normal_5f982d49d59c8.pdfIn PDF document text
    • https://jinugavov.weebly.com/uploads/1/3/4/4/134438703/valotexa.pdfIn PDF document text
    • https://lebuwaner.weebly.com/uploads/1/3/4/4/134478239/xedifojesipiz-dugojoburogu-femuwamu.pdfIn PDF document text
    • https://kukavixol.weebly.com/uploads/1/3/4/4/134485481/e9200045ed553ca.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4391315/normal_5f8ea8950c615.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/bcb28451-35db-4fb7-bb65-a4330a032a35/hey_onbeli_onbeli_hikayesi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c1119487-529f-4ce6-8eb2-fd349499bc37/wiwiwutavixomar.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b25e7238-34dd-41b9-a759-50c5a291f3f8/tunemovie_is_cinema_movies_html.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0d6e554f-87e9-47b1-b143-a0d3c006baed/pijipezubu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/389919f7-f74f-4766-adb7-993c0c145cf5/the_island_of_dr_moreau.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_off0000465a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x465A 5140 bytes
SHA-256: 31b444f3841a0d7894b748534687a9676572f7185cbc55f5364add0ddc53287e
font_01_sfnt_off000057ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x57FF 10544 bytes
SHA-256: d09fd2b0781eb457ecdb970af6529749178b1c5b030eb120955e064cd9d0cead