Malicious PDF — malware analysis report

Static analysis result for SHA-256 c30fcbf8eaacebea…

MALICIOUS

PDF

44.0 KB Created: 2020-10-27 12:33:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-12-26
MD5: 28389ee6c7fb2074d0fcceeaeb50b13b SHA-1: 43bcfef082564fbb55bf4dc61e78c9084330e80e SHA-256: c30fcbf8eaacebeac0480d1aab6b78e6bdd8494e37f783c675a51d4350822671
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://ttraff.me/123?keyword=i%2527m+in+love+with+my+car+singer In PDF document text
    • https://wirukibit.weebly.com/uploads/1/3/0/9/130969322/fijobefi.pdfIn PDF document text
    • https://buxipowuno.weebly.com/uploads/1/3/4/3/134353207/mumofewazuguxil.pdfIn PDF document text
    • https://mojipidu.weebly.com/uploads/1/3/4/3/134391160/345937.pdfIn PDF document text
    • https://kuzaloxamuw.weebly.com/uploads/1/3/1/4/131406684/d7a3b0bacec912b.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00006cf2.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00006cf2.bin)
    • https://cdn.shopify.com/s/files/1/0434/4456/8220/files/lijefas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/6898/3969/files/94105043121.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0501/2052/3926/files/keurig_black_friday_walmart.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0500/0370/6006/files/88366711526.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0482/7306/4097/files/12751721618.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4078/3008/files/41047962215.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0500/5374/2745/files/25400203011.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0465/3223/1327/files/2173669384.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0477/1489/3980/files/kingroot_pro_apk_download_5.1.1.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2afee777-1c4d-47c2-97ee-8b863b4b1682/lusekovonolakopuvuwuboke.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b99892da-234c-4039-810d-36a8a7f3ea20/40333066667.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/653e2f4e-884b-4caf-8560-9b94f86250ee/69047504887.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c622be5a-431c-4b12-b528-c2a120fba5cf/patetasovosikavomal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0482/2479/6829/files/38183971827.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0497/9127/1061/files/votezeluzal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0504/3660/4093/files/14690224774.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_00_sfnt_off00006cf2.bin)

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_off00006cf2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6CF2 5440 bytes
SHA-256: e24080996e165e45b1d889b838c3e257fd178889bafc8bfc63b5119a5d4cf267
font_01_sfnt_off00007f5d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F5D 10456 bytes
SHA-256: f0e54c99c6b10ae3178f92518c8f432a6b4ee3cd8f5949c9a253d6a0161db1fe

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