Malicious PDF — malware analysis report

Static analysis result for SHA-256 0be687c6e15891ae…

MALICIOUS

PDF

43.3 KB Created: 2020-10-30 09:39:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: 8e40125cebbe824317e321f3851082e2 SHA-1: d5909e3a810674fa3b0439d138898d5628ed5de1 SHA-256: 0be687c6e15891ae2e9f73ed346cd6733d20a3f841b0b92733c145e50333d321
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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/aws?keyword=prayer+for+myself+as+a+wife+and+mother In PDF document text
    • https://rudiduwusoxu.weebly.com/uploads/1/3/4/4/134445317/ebb9e26de.pdfIn PDF document text
    • https://nesavelo.weebly.com/uploads/1/3/2/3/132303009/9443059.pdfIn PDF document text
    • https://pezopipowom.weebly.com/uploads/1/3/1/4/131406060/9414968.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373526/normal_5f8ce57a702b3.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/susopuzupure/nikeruvireges.pdfIn PDF document text
    • https://s3.amazonaws.com/rezugekolaba/levenexegidazokima.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8982/8771/files/bawugu.pdfIn PDF document text
    • https://s3.amazonaws.com/bisute/free_tattoo_flash_book.pdfIn PDF document text
    • https://s3.amazonaws.com/henghuili-files2/exception_handling_in_java_download.pdfIn PDF document text
    • https://s3.amazonaws.com/zoromexemuzid/camilo_torres_restrepo_biografia.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5499/7402/files/64591192706.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0497/3461/5199/files/18660425286.pdfIn PDF document text
    • https://s3.amazonaws.com/tejuvonixag/lurinop.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_off00006977.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6977 5344 bytes
SHA-256: 4c061bc6afb83815fe1f42f656e8ff7877ae82bed4c416351b34fc06b4f4b5b9
font_01_sfnt_off00007b8b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B8B 10260 bytes
SHA-256: e89609803af4d06b8d2c7ba7160521eb782108f2f5d91c3a0acd7848b25c14a5