Malicious PDF — malware analysis report

Static analysis result for SHA-256 30fb106fcf1ff36a…

MALICIOUS

PDF

47.6 KB Created: 2020-10-25 08:54:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 742aa78cc85ba1c1c440650d6c3e4dbe SHA-1: dc9d5b61fb73500406e7e7b57c7984c1c0e12238 SHA-256: 30fb106fcf1ff36a6c2b1f0e443244c4e9f7bfb632903bc437b659507b400221
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://ggtraff.ru/aws?keyword=tamil+books+pdf+free+download+websites In PDF document text
    • https://cdn-cms.f-static.net/uploads/4384150/normal_5f9435df76bfd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386613/normal_5f933724b25fb.pdfIn PDF document text
    • https://xebikazogede.weebly.com/uploads/1/3/2/7/132740990/visepijejasikari.pdfIn PDF document text
    • https://rofexigu.weebly.com/uploads/1/3/0/7/130738805/6a634e617.pdfIn PDF document text
    • https://lilawowawumoxo.weebly.com/uploads/1/3/1/4/131453384/falukajonuxe_rojotavakop_fesufakot_xasefupenagu.pdfIn PDF document text
    • https://gexumuvebevo.weebly.com/uploads/1/3/4/3/134312536/zudepetima-karabakim.pdfIn PDF document text
    • https://pubetisor.weebly.com/uploads/1/3/4/3/134348812/a26d5b2b9c6a61.pdfIn PDF document text
    • https://bipasakugerada.weebly.com/uploads/1/3/4/3/134350286/5579184.pdfIn PDF document text
    • https://guwomenod.weebly.com/uploads/1/3/0/8/130873843/mofep.pdfIn PDF document text
    • https://xeruwuxopexok.weebly.com/uploads/1/3/4/4/134467304/b4d8ab2c1b87.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/8190b700-0fac-4efa-aba8-bdd0670df715/saruvefofogezifa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5da305f1-2809-4da3-b022-4377add3e469/fuzagaroxijupi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/aa80e7e2-ca06-4695-8922-128705ddbda1/tizapuzesota.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/64048608-69ad-473f-80ba-adb5994b3ab4/ta_main_claudio_capo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/42e03493-d4cf-4ba9-b938-5048cb81cbd3/nisufofekebijekagagewi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b4c5dd13-99e7-4275-b769-9a22a6e8f49a/45313531499.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/87237600-2b3e-4725-aaf9-c0acb6ced3b4/38117362847.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0502/0391/8512/files/57636898331.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8972/2534/files/ninobutasifadawuxipok.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_off00007910.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7910 5432 bytes
SHA-256: ede7f80296e88d1e11eea45e5320251139de96c11fc6f5c99cca7439fdb74359
font_01_sfnt_off00008b81.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B81 10900 bytes
SHA-256: 5bbe78225239ed4415865e4bbecce57a91d9ee7ddf16d9fe329e0d8ffe6e6463

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