Malicious PDF — malware analysis report

Static analysis result for SHA-256 696248916708db97…

MALICIOUS

PDF

46.4 KB Created: 2020-10-25 03:17:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-12-26
MD5: c9f0c54168d7c5386c018bada6a6921d SHA-1: d4cf49cfb6af294a54c112fa0b2a7d992a287e3f SHA-256: 696248916708db974bce0fb7304e2e4e5b7dd716531d8e33203764c579366927
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/aws?keyword=scorpio+sun+capricorn+moon+pdf In PDF document text
    • https://mipirizu.weebly.com/uploads/1/3/2/6/132682564/975526.pdfIn PDF document text
    • https://wetuxabo.weebly.com/uploads/1/3/0/8/130873937/doliverepiginezag.pdfIn PDF document text
    • https://folarudivol.weebly.com/uploads/1/3/1/8/131871739/2140855.pdfIn PDF document text
    • https://fuparududewon.weebly.com/uploads/1/3/1/8/131856041/9509331.pdfIn PDF document text
    • https://pumowurunumig.weebly.com/uploads/1/3/2/7/132740285/vesokipuz_judinenoni_mojosetula_powuri.pdfIn PDF document text
    • https://dajifavetesa.weebly.com/uploads/1/3/4/2/134234726/basemeb-luvun.pdfIn PDF document text
    • https://walijogopabo.weebly.com/uploads/1/3/0/7/130776167/b4e6966cf639ec.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off0000760a.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off0000760a.bin)
    • https://cdn.shopify.com/s/files/1/0498/7859/7790/files/99605054856.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3866/8965/files/9774767688.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0496/0662/3384/files/read_bible_in_6_months.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0486/0752/7077/files/48776855394.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9011/5748/files/machine_input_output_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0266/8494/8653/files/john_fogerty_rock_and_roll_girl_live.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0497/5008/1690/files/machine_shop_training_report.pdfIn PDF document text
    • https://s3.amazonaws.com/zarelusipofox/rixeredimusagon.pdfIn PDF document text
    • https://s3.amazonaws.com/jamokaroxoj/85941461966.pdfIn PDF document text
    • https://s3.amazonaws.com/penefelomiju/83781738741.pdfIn PDF document text
    • https://s3.amazonaws.com/tinajabizoreguf/bise_sahiwal_gazette_2019_download.pdfIn PDF document text
    • https://s3.amazonaws.com/memul/business_communication_full_notes.pdfIn PDF document text
    • https://s3.amazonaws.com/ratixifo/60611184526.pdfIn PDF document text
    • https://s3.amazonaws.com/wonoti/zudawabatoralar.pdfIn PDF document text
    • https://s3.amazonaws.com/fasanag/nupimofowova.pdfIn PDF document text
    • https://s3.amazonaws.com/tizowodifi/82025624920.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_off0000760a.bin)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000760a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x760A 5372 bytes
SHA-256: a427f579f3685f0b9f2482e5138d396a72053b4e0117f4eb790cefaae3ce2e29
font_01_sfnt_off0000883b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x883B 10396 bytes
SHA-256: 3a58a92f6c7ebee372e433afb0ad3501c9df6d807d0c92e0aa64e12ac779617a