Malicious PDF — malware analysis report

Static analysis result for SHA-256 14e983fe3beac645…

MALICIOUS

PDF

48.7 KB Created: 2020-10-25 18:18:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-12-26
MD5: e0933dcf9c21154f357ea08fe961a986 SHA-1: 9f29379f960b4376d97e0926400555388128dadb SHA-256: 14e983fe3beac6451effdcf8f52bdada95fa28a8fbcb81662b09e80085374ae4
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/aws?keyword=calgary+plus+15+map+pdf In PDF document text
    • https://cdn-cms.f-static.net/uploads/4387581/normal_5f924c990eb63.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412173/normal_5f956e7008776.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384645/normal_5f8cac8615d4c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366304/normal_5f87aa915a7f6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366048/normal_5f86fb38596e7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368266/normal_5f8c98d0327f9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367648/normal_5f91b2f654bfa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377101/normal_5f902fed23e20.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380694/normal_5f8fcebdd3354.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_01_sfnt_off00007d04.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_01_sfnt_off00007d04.bin)
    • https://cdn.shopify.com/s/files/1/0497/2042/6653/files/lepai_2020_vs_2024.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0500/3506/5002/files/cloze_test_for_reading_comprehension.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9279/3757/files/japad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2259/7800/files/text_free_app_download_for_android.pdfIn PDF document text
    • https://s3.amazonaws.com/rimepusox/naming_of_cycloalkanes.pdfIn PDF document text
    • https://s3.amazonaws.com/jamokaroxoj/22456278914.pdfIn PDF document text
    • https://s3.amazonaws.com/dadupawo/alter_ego_plus_3_livre_du_professeur.pdfIn PDF document text
    • https://s3.amazonaws.com/tojabixefova/amharic_afaan_oromo_dictionary.pdfIn PDF document text
    • https://s3.amazonaws.com/susopuzupure/silas_marner_oxford_bookworms_stage_4.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0498/9331/0631/files/family_worksheet_year_1.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6998/0320/files/gosonegefedofulojupikotup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0496/2723/4455/files/58030775042.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0494/1221/0844/files/the_lottery_black_book_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0314/9479/files/ipsec_vpn_configuration_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/mijedusovineti/siwigesaruk.pdfIn PDF document text
    • https://s3.amazonaws.com/vuraradaso/non_abelian_group.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 extracted file (font_01_sfnt_off00007d04.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006afd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6AFD 5200 bytes
SHA-256: 3c6415ea26a9005fa2fa9838174e91e270457bc4cdbf7f864dc72d6ebac3702f
font_01_sfnt_off00007d04.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D04 5544 bytes
SHA-256: 79acf87de3fe0bc980b896405f92036c2f55370a74fd5a4038e5e1fe660c022c
font_02_sfnt_off00008fdf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8FDF 10480 bytes
SHA-256: fd56ba4799fad6a898c3e655f6504af7d7ba99771072632a28acd8c4b771d4c8