Malicious PDF — malware analysis report

Static analysis result for SHA-256 240fc72d8c6ef02f…

MALICIOUS

PDF

54.9 KB Created: 2020-10-29 21:09:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-02-23
MD5: f7e915c490910bd4ee5c8b48a85dbb8e SHA-1: 9012880cebfacc97524cdd60cd70d81369a169fb SHA-256: 240fc72d8c6ef02f7e00b4b6e2c66e907f3ceea6884f24162c974ddbe733e2cd
124 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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 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.me/123?keyword=ruger+sr9c+holster+amazon In PDF document text
    • https://xesaranit.weebly.com/uploads/1/3/2/6/132696194/4381576.pdfIn PDF document text
    • https://besiwalufeg.weebly.com/uploads/1/3/2/6/132696214/mosinozivinaxon-rulubelimebejuj-wafonepigaze-detebewep.pdfIn PDF document text
    • https://latenenagizogip.weebly.com/uploads/1/3/2/6/132696064/56bb24b4d72.pdfIn PDF document text
    • https://valoxapemep.weebly.com/uploads/1/3/4/3/134305175/paxatuvilisove.pdfIn PDF document text
    • https://zebamejiwan.weebly.com/uploads/1/3/4/3/134312785/fikikisuwubiwiba.pdfIn PDF document text
    • https://besiwalufeg.weebly.com/uploads/1/3/2/6/132696214/xoriratapepekum.pdfIn PDF document text
    • https://juragubiv.weebly.com/uploads/1/3/0/8/130874328/gapawibales.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/rubidokezive/easy_learning_english_conversation_collins.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0500/3739/1558/files/wefofef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0266/9549/9968/files/methodology_quantitative_research.pdfIn PDF document text
    • https://s3.amazonaws.com/moduxanakuri/wuvogikomuxurad.pdfIn PDF document text
    • https://s3.amazonaws.com/tadovu/29221239234.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_off000096ec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x96EC 5428 bytes
SHA-256: 323d72ef01f568d1da9ab4fcc4274b34d916dcbb470687482a8e9c107a598363
font_01_sfnt_off0000a948.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA948 11140 bytes
SHA-256: 4911aaa4b07849d765a1a80e41bc7cc8b1992d0811a87270c78af534479c8130