Malicious PDF — malware analysis report

Static analysis result for SHA-256 603420b01d6a2903…

MALICIOUS

PDF

43.2 KB Created: 2020-08-13 01:23:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 11807909deede34cd7627492cda34199 SHA-1: 553f5593db600f68db12d4c5c62496df23390793 SHA-256: 603420b01d6a2903a149f05721599c79ec01832c0eca37f9e8f1f154b86faac4
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.com/pify?keyword=energia+da+biomassa+pdf In PDF document text
    • http://files.ecolimits.org/uploads/1/3/2/8/132814476/tawesebenok-tologonewakepi-tixuger-sabixafonuvut.pdfIn PDF document text
    • http://files.phase1trackclub.com/uploads/1/3/2/6/132681602/2a3a5ab08c0.pdfIn PDF document text
    • http://files.aaronpuppe.com/uploads/1/3/1/4/131455543/51580a6745347.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/1/0428/6863/7862/files/9268110009.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7418/1537/files/wipiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3173/2132/files/57458293477.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6881/5528/files/notsobot_command_list.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5483/9461/files/analytical_groundwater_mechanics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6359/7466/files/76779718312.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4474/8950/files/rekakawekizakepo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1895/2610/files/61719553961.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8982/1845/files/practical_multivariate_analysis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8559/4775/files/talipunuke.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3321/4621/files/nimoniloxajoxekadesoma.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5266/0901/files/wodatulumepawalomupu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5537/3720/files/29065954459.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9847/0555/files/libezaxum.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 7

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_off0000697b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x697B 5424 bytes
SHA-256: bed7d1ac1161f484eb1c7c2c55362dd28b2177be105c3165cf21c6db853e4079
font_01_sfnt_off00007bcf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7BCF 11216 bytes
SHA-256: e705213e952a137d6e9421bfd2305d0720fdce588b27b4c55abe1791d9a2e813

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