Malicious PDF — malware analysis report

Static analysis result for SHA-256 14d0355863ab65be…

MALICIOUS

PDF

40.0 KB Created: 2020-09-18 20:15:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 1f32b2cbe00a58966140e0d54740ea5c SHA-1: ccd6ec3d30d2fcacf8e54c5a5eb83c3d3c0df728 SHA-256: 14d0355863ab65be324e4e87d52003db802549ca7ab2c1b8a77dc5f202a07e7d
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.com/wix?keyword=the+century+america%2527s+time+homefront+7+video+worksheet+answers In PDF document text
    • http://tekubu.clarionfootball.com/uploads/1/3/1/3/131380733/mepupojukegufo.pdfIn PDF document text
    • http://dasapipel.fancyfarmmanor.com/uploads/1/3/2/3/132302815/9054747.pdfIn PDF document text
    • http://vikixuj.desotobands.org/uploads/1/3/1/4/131438437/991ed2a.pdfIn PDF document text
    • http://xubavuwur.ebbtidewellness.com/uploads/1/3/2/6/132680813/tigopojixifeso.pdfIn PDF document text
    • http://files.lechelove.org/uploads/1/3/2/6/132681783/132e0bd76b4ee.pdfIn PDF document text
    • http://betudabim.sustainingthehealthylifestyle.com/uploads/1/3/1/4/131454731/zenuvemigesikigofedu.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/1/0439/9369/4366/files/namisopakanalujufovotop.pdfIn PDF document text
    • https://2347d01f-a141-4318-93f1-c4426636b895.filesusr.com/ugd/d2759c_e9daea5e7ef942e88b4c757bbae49e22.pdf?index=trueIn PDF document text
    • https://a832f2be-d186-4292-b8c4-79bbd0882765.filesusr.com/ugd/8ce377_e0f8a01212a74c37a079d304a5a64af2.pdf?index=trueIn PDF document text
    • https://1d8366dd-48a4-4c24-bd60-b9408f00b5e2.filesusr.com/ugd/de60da_de2fef9758254f94ae4b54ec1056f431.pdf?index=trueIn PDF document text
    • https://6b992d19-bab1-465a-8bd0-27c9d22626c6.filesusr.com/ugd/d9f7b5_1ec3c3f0cf07414b9ba4e30288fa990a.pdf?index=trueIn 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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005936.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5936 5612 bytes
SHA-256: 3afccc24edf9cbf40763947a71b76ef3f6a3b6760548db852329edaba505c5fd
font_01_sfnt_off00006c4c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C4C 12008 bytes
SHA-256: 43bd55d5a58c5e3d5070916f935298042f52c31f99b96fb3fd23e15313d39619