Malicious PDF — malware analysis report

Static analysis result for SHA-256 bd0bef17af4590fb…

MALICIOUS

PDF

37.9 KB Created: 2020-10-15 15:59:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: e663638ed5319338125f68df1e7a3fe5 SHA-1: ebd9af51874a5373ab85c6bb4f80eba3b2614e89 SHA-256: bd0bef17af4590fbed7620d266b002ae8321447b60065b3fbfc863d96e11a313
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://gettraff.ru/123?keyword=alif+novel+episode+10+download+pdf In PDF document text
    • https://cdn-cms.f-static.net/uploads/4367305/normal_5f8764c3298de.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369763/normal_5f88376968fe6.pdfIn PDF document text
    • https://liwevapazu.weebly.com/uploads/1/3/1/0/131071299/4756581.pdfIn PDF document text
    • https://mojivimimujovo.weebly.com/uploads/1/3/0/8/130874437/xefafimofaxeparekuji.pdfIn PDF document text
    • https://dimaxafazeza.weebly.com/uploads/1/3/1/4/131453031/zakeme.pdfIn PDF document text
    • https://jakedekokobara.weebly.com/uploads/1/3/1/3/131381480/fesixukorupu.pdfIn PDF document text
    • https://wepugimi.weebly.com/uploads/1/3/1/0/131070973/3072351.pdfIn PDF document text
    • https://sujajikozodes.weebly.com/uploads/1/3/1/3/131384638/c0e008fb.pdfIn PDF document text
    • https://kokexofagisukop.weebly.com/uploads/1/3/2/7/132710589/kerativejubikunabas.pdfIn PDF document text
    • https://genigudepa.weebly.com/uploads/1/3/1/0/131070712/vovofofaverun_sawivurovoj_nifawubazox.pdfIn PDF document text
    • https://bibeliki.weebly.com/uploads/1/3/0/7/130738572/3cfd05c7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365634/normal_5f8708e1c16f3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366408/normal_5f87d67698099.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369164/normal_5f87c6b720475.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365636/normal_5f86f96170f3e.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/1/0479/7992/1564/files/22591469711.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0496/6917/7497/files/z_table_standard_normal_probabilities.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0498/0690/1405/files/29408932824.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0480/7308/0996/files/touhou_6_download_mega.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0497/8468/4706/files/suzuki_piano_practice_chart.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0496/6694/9269/files/60692838371.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005610.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5610 5276 bytes
SHA-256: 56a24567037c2c8e37f41a6f1503428f63ac0bac28c3637f0d090b2333242081
font_01_sfnt_off00006834.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6834 10044 bytes
SHA-256: cc92ce0b100b723e6739d6a01d2533c032a78ad0955390c5f885ba851148bd65

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