Malicious PDF — malware analysis report

Static analysis result for SHA-256 c0dde5d589f76c6b…

MALICIOUS

PDF

42.3 KB Created: 2020-10-16 02:43:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: 889f6d531fe85acbbf5581d80d9e88f0 SHA-1: 9698b4bc4277451d2935a1e2f086bd235691facf SHA-256: c0dde5d589f76c6bf79931d52213ee1bd3e8a4b0ee8ee4bd264546869f0b8fbd
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://ggtraff.ru/123?keyword=masque+africain+%25C3%25A0+colorier+pdf In PDF document text
    • https://site-1038952.mozfiles.com/files/1038952/kernel_adiutor_latest_apk.pdfIn PDF document text
    • https://site-1043581.mozfiles.com/files/1043581/28394337554.pdfIn PDF document text
    • https://site-1039500.mozfiles.com/files/1039500/nafaw.pdfIn PDF document text
    • https://suzokixuvajix.weebly.com/uploads/1/3/0/7/130776208/kovisemifarigugufol.pdfIn PDF document text
    • https://fijojonibiw.weebly.com/uploads/1/3/2/6/132681787/rotizizalipi-xulejowo-wegevok-xutijub.pdfIn PDF document text
    • https://gurigibafex.weebly.com/uploads/1/3/0/7/130739571/lagorijudiwox-bunawuw.pdfIn PDF document text
    • https://topodomero.weebly.com/uploads/1/3/2/6/132696018/1aa709cded9.pdfIn PDF document text
    • https://tavumake.weebly.com/uploads/1/3/2/7/132740551/2406058.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368251/normal_5f8805e11e7e2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369772/normal_5f87ea625a793.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0486/2630/3134/files/definition_of_contrary_to_belief.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/0908/4072/files/kokapuwasewexagof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9140/2660/files/web_to_offline_apk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0496/3595/0743/files/25664891928.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0504/3175/4414/files/android_com_1_mini_militia.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0499/4524/7899/files/sein_und_zeit_espaol.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000677e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x677E 5516 bytes
SHA-256: c13f6e24d0f81588fbac587ec00adb4e4db4205915fb6db65a9ef455041b19c9
font_01_sfnt_off000079c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x79C1 10348 bytes
SHA-256: 5257044e1fd9bad2dff7dce104270ce5e08dc84a89e700804cc319d6a1ad585a

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