Malicious PDF — malware analysis report

Static analysis result for SHA-256 e7fe2003dbf334b9…

MALICIOUS

PDF

46.0 KB Created: 2020-08-02 02:23:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 963b8ab0b7710de90fab3371a5b9f04d SHA-1: 2cd62d0c1a7f1aedf77be78b40fd8edeac865249 SHA-256: e7fe2003dbf334b95074149ebea5b11b0b2dfcda3889d1cd0dd4685b5a63eb98
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.ru/pify?keyword=derivative+of+frobenius+norm In PDF document text
    • http://files.wayne-badminton.com/uploads/1/3/1/3/131384359/9068208.pdfIn PDF document text
    • http://files.bestgardendesign.co.uk/uploads/1/3/1/8/131858592/rujapoxopade.pdfIn PDF document text
    • http://files.troop323bsa.com/uploads/1/3/1/6/131606636/4660325.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/1/0430/6878/4791/files/46417783349.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3876/8294/files/sosozititorabarefu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6465/6026/files/manual_de_opera.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4134/1092/files/pabozibajol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1740/4573/files/18274432911.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3241/0272/files/how_to_untrack_files_in_git.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4671/5040/files/teachers_curriculum_institute_answer_key.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6988/8920/files/38660937220.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/81256704061.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4218/6150/files/tajutulavepa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5830/6965/files/rinelusubopasemiguwopen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6970/2306/files/85886434243.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005a8d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A8D 4964 bytes
SHA-256: 00d4c398753f2362bfdf3c2faa56dba8a5573d53addbdbc4772a5ec707c73241
font_01_sfnt_off00006b5f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B5F 16024 bytes
SHA-256: 97e40b8757277a5805dfbe6c5c3c5722e9daa4e282b33f2746d272bbf8398ede
font_02_sfnt_off00009cec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9CEC 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

Open this report in the interactive analyzer, or submit your own file for analysis.