Malicious PDF — malware analysis report

Static analysis result for SHA-256 0c6f63f633b24048…

MALICIOUS

PDF

37.5 KB Created: 2020-10-28 08:14:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 0b129b33cd5475f2f6001a82db468708 SHA-1: d7a32341fba26922c064c624b25e9438507824da SHA-256: 0c6f63f633b240480ff4be682b3cb69ce19a809a26f17d0fd1add46329c8fbe7
94 Risk Score
Tags
free-cdn-ebook-manual-lure

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://ggtraff.ru/strik?keyword=deep+sleep+movie In PDF document text
    • https://cdn-cms.f-static.net/uploads/4369935/normal_5f89de84e000e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365656/normal_5f8df8c71e291.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380527/normal_5f8c5cebc3d7c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4406213/normal_5f93c15d81b7d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367283/normal_5f8d055467c85.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369495/normal_5f8829ccf005d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373998/normal_5f98f620d3a68.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368999/normal_5f928b11c9edb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379973/normal_5f94194a19029.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368485/normal_5f96351b1555a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388839/normal_5f950fe09019b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372377/normal_5f89c0dbcb533.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/a0401a5b-7ac8-4b0f-9b39-62e264c47f5c/42186991434.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8eb9f1e3-855a-45db-b192-1a588c04e0ec/skeleton_business_plan_template.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8b3e0c27-3e48-4a6c-bc0f-b789024bbf38/7351880308.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/02e427eb-934d-4263-a8ac-3fee9c111230/partition_guitare_pirate_des_caraibe.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b37daa1a-eee8-416e-b036-02c63d809ae4/10500272127.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1c6adb16-06bb-4374-a78a-adaa077926b4/xiwugasidineduzanaxij.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/14c5be5c-c7f3-4297-b6f9-42df7676c441/88736024872.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/34e08023-0e8c-416a-b006-1a420e225b4e/ejercicios_resueltos_de_circuitos_el.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/477280a0-0375-45c9-a769-9335d1d54122/11829926846.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/caf5abba-389b-4b6a-ba5e-a83dded3607d/gurobovafajawowego.pdfIn PDF document text
    • https://s3.amazonaws.com/subud/totizivuw.pdfIn PDF document text
    • https://s3.amazonaws.com/tixedujegibex/wukatixoxoxuwadapopo.pdfIn PDF document text
    • https://s3.amazonaws.com/gupawupigawono/medicamentos_antipireticos_lista.pdfIn PDF document text
    • https://s3.amazonaws.com/henghuili-files/soromebesowajuru.pdfIn PDF document text
    • https://s3.amazonaws.com/susopuzupure/60468023566.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_off00005547.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5547 4716 bytes
SHA-256: 7a4d1927ae07f1a78861bf11927e8374e525361803d9932ed77b18c2c518f9b7
font_01_sfnt_off00006554.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6554 10252 bytes
SHA-256: 29fbcc9b7f6222685a9f63330c2919619da827e23c2fd0e24ad8f125001ddd49

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