Malicious PDF — malware analysis report

Static analysis result for SHA-256 2c179d15d102701a…

MALICIOUS

PDF

58.0 KB Created: 2020-10-16 11:30:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: aac17cc6fe8fdcbb23c78413b526fd60 SHA-1: fa6a8767629d8189a857125012e667a6d24e9c29 SHA-256: 2c179d15d102701a7ecf1b14886d07339e654fb6c0a5c2bcdefb5c1ee7c0ecf3
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://cctraff.ru/123?keyword=northern+italy+map+pdf In PDF document text
    • https://vuxozajuje.weebly.com/uploads/1/3/1/3/131379873/3257372.pdfIn PDF document text
    • https://pobezewimo.weebly.com/uploads/1/3/2/6/132681951/zuzazataf_tevejesugi_wobixofifufir_fopezisiz.pdfIn PDF document text
    • https://xojerajap.weebly.com/uploads/1/3/1/3/131384359/8ba85efefb.pdfIn PDF document text
    • https://mojivimimujovo.weebly.com/uploads/1/3/0/8/130874437/9594994.pdfIn PDF document text
    • https://sirawomaperuli.weebly.com/uploads/1/3/1/3/131398091/rotapulofiminiju.pdfIn PDF document text
    • https://finiluxexolije.weebly.com/uploads/1/3/1/8/131856594/kalomedavux.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367283/normal_5f875654cdea8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367312/normal_5f87b0d7f2422.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://cdn.shopify.com/s/files/1/0431/9870/9917/files/ib_history_internal_assessment_sample_microeconomics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0501/6407/2613/files/bogepaniviwukem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0495/6572/8920/files/media_programming_strategies_and_practices.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0482/5366/5442/files/kazefuweresomimatuta.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0266/9720/3886/files/sugajoronewatexuvoximagav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8434/9591/files/the_maze_runner_book_setting.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0521/3854/files/kernel_adiutor_apk_mirror.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/42264f5b-ed5f-4383-a8a5-34291a9d3eab/pikulotoxalixusomeba.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fd534b93-b047-4e03-a721-0595eefed6eb/digodefojazexagogapumax.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/67f0a9c4-f8b5-44f9-9669-ff2e7feeaf3b/12143878370.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f0530448-7079-4798-8a04-dd5f930e51d7/43879789963.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_off0000961d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x961D 4960 bytes
SHA-256: 37aabc8950331006647322b60bdfe204834a42998f8bee3caa3ceafa60dfa30b
font_01_sfnt_off0000a6d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA6D2 11472 bytes
SHA-256: 1683d62e3d304cf82025e30841db6e6933242f472185da82d4b8c7bdb3ef9957
font_02_sfnt_off0000cc84.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCC84 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

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