Malicious PDF — malware analysis report

Static analysis result for SHA-256 7fa0020d45870294…

MALICIOUS

PDF

37.2 KB Created: 2020-10-23 17:57:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: 7008a7541b4485796dd63cec6e25bc29 SHA-1: 9a2889e33f13e9f0a375d3450ee8c961ffd1e85f SHA-256: 7fa0020d45870294ef6deddc74efef010c8cc6ec3c976edf211cd7a86376b685
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=hague+evidence+convention+pdf In PDF document text
    • https://cdn-cms.f-static.net/uploads/4368266/normal_5f905fbad1571.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374181/normal_5f8a2f9e59904.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380530/normal_5f8ace07b8acf.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6734/1974/files/26714877188.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2317/8656/files/major_scales_worksheet_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0266/7829/6746/files/97437035403.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0459/9270/6207/files/foxx_tone_machine_schematic.pdfIn PDF document text
    • https://s3.amazonaws.com/remuv/6399868251.pdfIn PDF document text
    • https://s3.amazonaws.com/wipotegadodorek/60327548799.pdfIn PDF document text
    • https://s3.amazonaws.com/zirojopemup/dibufixejig.pdfIn PDF document text
    • https://s3.amazonaws.com/gupuso/84228306456.pdfIn PDF document text
    • https://s3.amazonaws.com/sabegokek/historical_origins_of_islam.pdfIn PDF document text
    • https://s3.amazonaws.com/gupuso/15653996207.pdfIn PDF document text
    • https://s3.amazonaws.com/lorifawuvawot/tomuji.pdfIn PDF document text
    • https://s3.amazonaws.com/falevi/nelisitidevajabenuxiwesam.pdfIn PDF document text
    • https://s3.amazonaws.com/subud/31913085802.pdfIn PDF document text
    • https://s3.amazonaws.com/wegemebufojafak/approaches_to_problem_solving_in_psychology.pdfIn PDF document text
    • https://s3.amazonaws.com/wonoti/joveviwum.pdfIn PDF document text
    • https://s3.amazonaws.com/megodipewukitoj/wing_chun_all_techniques.pdfIn PDF document text
    • https://s3.amazonaws.com/tixedujegibex/exogenous_antioxidants.pdfIn PDF document text
    • https://s3.amazonaws.com/henghuili-files2/fudagodori.pdfIn PDF document text
    • https://s3.amazonaws.com/sulasatevirexo/99305207152.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 6

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_off00004685.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4685 4920 bytes
SHA-256: f88b0ccbcfa7261366e209991a95d32057bc8ec6669dda11f999b6318f046cba
font_01_sfnt_off0000575a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x575A 10024 bytes
SHA-256: 7f3c6c5d16cb3e834fe69b9592bd4fb7c3a95147d35eee9378377c2c8579ad86
font_02_sfnt_off0000799f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x799F 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2

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