Malicious PDF — malware analysis report

Static analysis result for SHA-256 ccd53939df328538…

MALICIOUS

PDF

39.4 KB Created: 2020-10-29 11:45:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 98bee9cfcc27f7f4c1788b44aa167305 SHA-1: ed844e0a82914e6f795435e0348d0b1c4889e7f5 SHA-256: ccd53939df328538520c72e3c9b206bad79474a656a5f655a0f1392f9609bbdb
94 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file contains a critical heuristic firing indicating a malicious redirector link. The embedded URL 'https://ggtraff.ru/pify?keyword=sly+cooper+pc+emulator' is the primary indicator of malicious intent, likely serving as a lure to a phishing or malware download page. The ML classifier also strongly flagged this PDF as malicious.

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/pify?keyword=sly+cooper+pc+emulator In PDF document text
    • https://cdn-cms.f-static.net/uploads/4366011/normal_5f8f6a19b0cee.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366008/normal_5f900c81d5363.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413851/normal_5f9a043eb71cb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368469/normal_5f889c1d8d89e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368471/normal_5f8dd68aefe3f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365626/normal_5f87476317759.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367277/normal_5f8a45d0a0b45.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/vukusa/plan_pergola_adosse_bois_gratuit.pdfIn PDF document text
    • https://s3.amazonaws.com/limewub/22479420093.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cc704a14-484f-4ce5-b3b7-8dc544286862/jutav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0495/9436/8163/files/17202499213.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0505/7619/5752/files/90444323541.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e2b72188-d42d-4a31-80b6-d335fc658427/92995156748.pdfIn PDF document text
    • https://s3.amazonaws.com/gogonof/how_to_be_a_better_leader.pdfIn PDF document text
    • https://s3.amazonaws.com/bisute/anti_tax_avoidance_directive.pdfIn PDF document text
    • https://s3.amazonaws.com/wonoti/thyristor_applications.pdfIn PDF document text
    • https://s3.amazonaws.com/jobavo/antibiticos_en_odontologia.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_off00005de2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DE2 5104 bytes
SHA-256: 9d4e176274fcee664e8a08cb4ef3efb2b1751bb863e3008a24aaae0c04dc3bae
font_01_sfnt_off00006f32.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F32 9836 bytes
SHA-256: ca8820b4c185e5cc9be6d0b763241d966d6082dd4631c88491f428579ad0d465

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