Malicious PDF — malware analysis report

Static analysis result for SHA-256 46eb7f59a85d9b1a…

MALICIOUS

PDF

41.5 KB Created: 2020-11-01 12:24:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: 79d1b53795fb7412ba8a0878b429ac60 SHA-1: 96c75e0a062568da3f207e836d7be6fbc79462c5 SHA-256: 46eb7f59a85d9b1a40555f42d8ff71468c64cbfc8d6895e21ca5e86738ee7404
94 Risk Score

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://gettraff.ru/123?keyword=actividades+diarias+in+english In PDF document text
    • https://cdn-cms.f-static.net/uploads/4366335/normal_5f99163c6d53d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4390642/normal_5f9bd4d189455.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368741/normal_5f9a142be1e68.pdfIn PDF document text
    • https://fasefipuronupa.weebly.com/uploads/1/3/4/4/134471496/punij.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366033/normal_5f870a1367e6d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369304/normal_5f8dac8b8805c.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/72e18ad7-fbc4-4856-b6ee-0eb3acd02f66/jokeviga.pdfIn PDF document text
    • https://s3.amazonaws.com/muvarelo/torib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0268/7834/5387/files/why_this_kolaveri_di_chords.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3669950c-b29c-413a-895a-78e44a3741e0/the_21-day_sugar_detox_diane_sanfilippo.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000574e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x574E 4928 bytes
SHA-256: 8c171a8cfc58b80d1d435951c8656acd7d9d24fd70004c68b5ed402de5d45825
font_01_sfnt_off000067f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67F8 10584 bytes
SHA-256: 1e4be249e4638ba1eaca2f210df02b830ee7385f2a819a767aa19188afc38163
font_02_sfnt_off00008b49.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B49 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3