Malicious PDF — malware analysis report

Static analysis result for SHA-256 d7024717db888219…

MALICIOUS

PDF

47.6 KB Created: 2020-10-25 12:42:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-12-26
MD5: 3b76ecd52df4086794057e48f30f73b3 SHA-1: 82d8772e296e57aac9c32670059a53e029abad3b SHA-256: d7024717db888219ee694972f722154117bbacca1e2f8705f3ae9968984f068c
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://cctraff.ru/pify?keyword=waiting+for+godot+as+tragicomedy+pdf In PDF document text
    • https://batagokefo.weebly.com/uploads/1/3/1/0/131070859/4995441.pdfIn PDF document text
    • https://sadixudodexoz.weebly.com/uploads/1/3/4/2/134234615/5514886.pdfIn PDF document text
    • https://dutitujazekap.weebly.com/uploads/1/3/0/8/130814390/vigirupiruwovilav.pdfIn PDF document text
    • https://fepaxumezo.weebly.com/uploads/1/3/4/3/134320712/dcf64e.pdfIn PDF document text
    • https://wiwanozamo.weebly.com/uploads/1/3/4/3/134306351/6d24ae9db5ac9.pdfIn PDF document text
    • https://mojivimimujovo.weebly.com/uploads/1/3/0/8/130874437/batagebexi.pdfIn PDF document text
    • https://xeseboda.weebly.com/uploads/1/3/4/3/134323550/buvup.pdfIn PDF document text
    • https://panidulupeju.weebly.com/uploads/1/3/0/9/130969186/jadurekofetuvedu.pdfIn PDF document text
    • https://vunixumo.weebly.com/uploads/1/3/1/4/131453253/4239866.pdfIn PDF document text
    • https://fimuvuxufubewi.weebly.com/uploads/1/3/4/4/134442536/1c3f16.pdfIn PDF document text
    • https://mabanopovofed.weebly.com/uploads/1/3/1/4/131453130/rurixuxesozani-kukufe-gulanamiloboxi-fajud.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00006dd8.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00006dd8.bin)
    • http://www.daltonmaag.com/In extracted file (font_02_sfnt_off0000a2d6.bin)
    • https://uploads.strikinglycdn.com/files/cb92a185-4bf1-4104-ac68-dddaf322b6b1/lixijevawovufem.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fbdd1fa3-70b3-4cc0-9e7c-535e8f529ef9/31514431163.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1feb8b36-1a01-43b2-ae08-62d4ef46218c/kajipa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6c5a067b-6e40-4bc5-8a94-7e83c1d9626d/modezomitikikajimox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0482/1912/7965/files/91462656126.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4365/9677/files/solving_multi_step_equations_kuta.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0501/7934/2526/files/97354057978.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0482/8115/7787/files/34782525590.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6da76f41-e7ec-4d6f-b0e2-651cf6d84230/39057728755.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a3a3ca1b-4592-4a35-ad1a-3cb2e9dcaafe/62745508759.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_off00006dd8.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006dd8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6DD8 5348 bytes
SHA-256: af3d9a6916f5288ebff75fc0e3f2fee9a3e6f6644f604cac5264c7d7db466623
font_01_sfnt_off00007ffa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7FFA 10176 bytes
SHA-256: caa21635f2a414706c8300edb59804afac9da4da2a1bf7b1dbfd73ad63b407a0
font_02_sfnt_off0000a2d6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA2D6 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333