Malicious PDF — malware analysis report

Static analysis result for SHA-256 6ab3006c15d93a7c…

MALICIOUS

PDF

52.0 KB Created: 2020-10-25 03:00:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-12-26
MD5: 9d03b1eb8d6303535d71eae68c9b7e0c SHA-1: 18fc4f5c07e3777a795039e9391832cb2316081d SHA-256: 6ab3006c15d93a7c0d2e1a7faf8712b6149fedf27d6458fbee54aadba6e5b8a5
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/strik?keyword=sacred+geometry+drawing+instructions In PDF document text
    • https://cdn-cms.f-static.net/uploads/4366384/normal_5f8722932e1c6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413842/normal_5f94c2163ea58.pdfIn PDF document text
    • https://towetebofipu.weebly.com/uploads/1/3/1/4/131437669/fukug_lonib_nefej_vefofa.pdfIn PDF document text
    • https://junoxavod.weebly.com/uploads/1/3/1/3/131384771/a9e66ad38a58f86.pdfIn PDF document text
    • https://xujaxivef.weebly.com/uploads/1/3/1/4/131438557/652c4b0acde3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384026/normal_5f8c27af67ae4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369928/normal_5f88c40dafab8.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00008203.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00008203.bin)
    • https://uploads.strikinglycdn.com/files/081f73d4-8a84-44ce-a478-727fc21a4d62/8994171852.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fbb5472d-ff8b-4d8d-990c-589a4a5078bd/38304541905.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/71328ca0-29c3-4ae8-86a8-7dccb5881906/cara_membuat_surat_lamaran_di_hp.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0496/5898/6645/files/ifrs_9_eu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0479/1772/7910/files/97299793704.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0487/8801/3221/files/25759177018.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0499/2044/2529/files/poly_modelling_vs_box_modeling.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0478/1791/6575/files/budget_tool_app_android.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1188/9573/files/dopifokimakunanuzefirepuv.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_off00008203.bin)

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008203.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8203 5524 bytes
SHA-256: e511977afcc93d357a51e5763600bee0bf5155b30f1e3745bec272103274bad0
font_01_sfnt_off000094c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x94C3 1800 bytes
SHA-256: e9a5a1f6ed95b1e3669933bb00002ad32a1708c3e0b735191cad5e02368a6c7d
font_02_sfnt_off00009d51.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9D51 10988 bytes
SHA-256: c768033c2f6f2ef7a96f3100f92fe4c9b4771f47435abb988f856a43c4ce733e

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