Malicious PDF — malware analysis report

Static analysis result for SHA-256 f050cc7b589f0be6…

MALICIOUS

PDF

35.0 KB Created: 2020-10-15 10:36:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: 993a253227ca90baeb763cb39390e15b SHA-1: f225314609148caef51f982ca869299c9e7c33c2 SHA-256: f050cc7b589f0be6ad243bcbb0568847f88d2806eee0ea476d3ba90bdf97b0a4
124 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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 is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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=mrcog+part+1+success+manual+pdf In PDF document text
    • https://site-1036991.mozfiles.com/files/1036991/kapitomojotolotebanupiw.pdfIn PDF document text
    • https://site-1037010.mozfiles.com/files/1037010/fefulavim.pdfIn PDF document text
    • https://site-1039888.mozfiles.com/files/1039888/nusurowigubesixalu.pdfIn PDF document text
    • https://site-1040312.mozfiles.com/files/1040312/giwifi.pdfIn PDF document text
    • https://site-1043694.mozfiles.com/files/1043694/71330284435.pdfIn PDF document text
    • https://site-1042765.mozfiles.com/files/1042765/32722362827.pdfIn PDF document text
    • https://site-1042880.mozfiles.com/files/1042880/49425013751.pdfIn PDF document text
    • https://site-1038387.mozfiles.com/files/1038387/8623483106.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366374/normal_5f87264bd16fc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366408/normal_5f87ad0240e0c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365635/normal_5f8717e4744bf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366405/normal_5f87400dbd514.pdfIn PDF document text
    • https://site-1042360.mozfiles.com/files/1042360/97745431562.pdfIn PDF document text
    • https://site-1036862.mozfiles.com/files/1036862/29249963134.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/1/0483/2103/6452/files/varevuvirutejuguno.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7217/5772/files/molecular_mass_of_copper_sulphate.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5723/3576/files/68729267417.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0487/8758/7237/files/16991021230.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4141/4555/files/mibipewo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0497/8045/7623/files/magic_school_bus_goes_to_seed_worksheet_answers.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_off00004958.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4958 5532 bytes
SHA-256: dc549df3f77739a1307ad3b97429067a0befe7b2ee8703c735c1d6694b5fd2b8
font_01_sfnt_off00005c1c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C1C 10116 bytes
SHA-256: 8141075724bf700bf130ecdf7244e4ffc1c430d46f5de7792e1bda7bdd81ca2d

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