Malicious PDF — malware analysis report

Static analysis result for SHA-256 dae4c3d1128b4e13…

MALICIOUS

PDF

43.2 KB Created: 2020-11-02 16:06:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-15
MD5: d88336eae25f0ce7cb86686b713ced52 SHA-1: e42c87165e2df4e893dd2d8fde56aa0a549fd052 SHA-256: dae4c3d1128b4e1372e71d41477f5415dedd5f0a5b3f499b7365f7736e49ab88
94 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://ttraff.cc/123?keyword=broadway+bootlegs+aladdin'. The ML classifier also strongly flagged this PDF as malicious. While no scripts were extracted, the presence of a malicious URL within the document body suggests an attempt to lure the user to a compromised site, likely for phishing or further malware delivery.

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.cc/123?keyword=broadway+bootlegs+aladdin In PDF document text
    • https://buxivadoga.weebly.com/uploads/1/3/0/7/130740323/zazaxa.pdfIn PDF document text
    • https://fajagewuw.weebly.com/uploads/1/3/4/3/134350503/21f4e7.pdfIn PDF document text
    • https://xojisige.weebly.com/uploads/1/3/1/6/131637148/juguti-bokajaserak.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/2870217c-762a-46d3-9322-7ab696667be5/reborn_storage_guide.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/57a078ec-a1bd-4a92-8f5d-af04bb97f26f/43764491196.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/aad524b3-56be-4685-abca-2633e6834d6b/witcher_3_wolf_gear.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a1b6e816-dc93-4e7b-9d45-e601317c4f3e/80137702557.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b253b0ce-fe4f-4c36-95cb-8f46006f3723/direct_variation_graphic_organizer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6545/0391/files/22510228103.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a164c82f-1647-4c03-bb62-8819f50aa4ed/43767840330.pdfIn PDF document text
    • https://s3.amazonaws.com/jaburirarov/vujaluxikubalaxusuxonogut.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0d1d5932-e061-4d6a-9ac2-a908ae003e92/28926192223.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_off00006277.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6277 5376 bytes
SHA-256: 8cfd23eedb14db31a37fde8fb4bba16a50087021895c866011f245975d9db7a3
font_01_sfnt_off000074e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x74E6 14404 bytes
SHA-256: 501d25fdb741063c742eb56c37830609845c4bce9b2719e421685543e19e9f98