Malicious PDF — malware analysis report

Static analysis result for SHA-256 1b08b00029fbeca6…

MALICIOUS

PDF

47.9 KB Created: 2020-10-29 00:20:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-10
MD5: cbaa4e9fe9ec2a6979ae52bc9a7e483a SHA-1: 20028512a13fbca083edfb88650ef3938f057338 SHA-256: 1b08b00029fbeca69c8dd2c20a3190abb4c0872dce016c58f891ac63a014538d
184 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.
  • 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://ttraff.link/pify?keyword=the+motels+band+bio In PDF document text
    • https://finazodaxuvoj.weebly.com/uploads/1/3/2/6/132682535/0b4aed58.pdfIn PDF document text
    • https://dewubonate.weebly.com/uploads/1/3/4/4/134466502/nasesabuvok-remagoseze-pujobetili-folilolewojiza.pdfIn PDF document text
    • https://jawowigo.weebly.com/uploads/1/3/0/7/130774982/424377.pdfIn PDF document text
    • https://kolivobaka.weebly.com/uploads/1/3/4/5/134500933/6676102.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368781/normal_5f93fc28394f4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403266/normal_5f93dd9915fd8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368228/normal_5f87626538132.pdfIn PDF document text
    • https://rizidapovo.weebly.com/uploads/1/3/4/3/134316848/2111936.pdfIn PDF document text
    • https://tudupumodowi.weebly.com/uploads/1/3/1/4/131406798/nenanofot.pdfIn PDF document text
    • https://tipiridevozono.weebly.com/uploads/1/3/4/3/134349557/3720533.pdfIn PDF document text
    • https://musazowoxagaw.weebly.com/uploads/1/3/4/3/134323980/rofapelosilozanil.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00007c82.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00007c82.bin)
    • https://cdn.shopify.com/s/files/1/0495/9859/5221/files/rovusomigotozi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0499/9872/5271/files/horseshoes_of_a_zephyr_pathfinder.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2530/9601/files/to_fragment_trong_android.pdfIn PDF document text
    • https://s3.amazonaws.com/henghuili-files/joxugozurinotisupoxaro.pdfIn PDF document text
    • https://s3.amazonaws.com/ropuba/general_anesthesia_drugs.pdfIn PDF document text
    • https://s3.amazonaws.com/mipeboro/certificate_of_incorporation_download.pdfIn PDF document text
    • https://s3.amazonaws.com/nademopor/15228621840.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_off00007c82.bin)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007c82.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C82 5056 bytes
SHA-256: f3e7090b1dd5469c03721204c767afa1b6ca9e9ce95a5e72aa9920bb1beda177
font_01_sfnt_off00008d82.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D82 10884 bytes
SHA-256: 64e3cf08ca8b2f516f52ee7fd1708672f8cb07feb7a462d9f0c9c08381e535e4