Malicious PDF — malware analysis report

Static analysis result for SHA-256 0c3b202afaae242f…

MALICIOUS

PDF

47.9 KB Created: 2020-10-15 05:19:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: d527437ff5c8d57037c0983db93bebeb SHA-1: 6081484cb4e7dc8be43a5124db5fa0950e5a5549 SHA-256: 0c3b202afaae242f1733e2d3cbb1f825ae9422902ad4724f4a80a59652658836
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=agenda+21+objetivos+pdf In PDF document text
    • https://cdn-cms.f-static.net/uploads/4365600/normal_5f8709f12309c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369306/normal_5f87b14939eda.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366022/normal_5f86f55149c0b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368751/normal_5f87a29c8537c.pdfIn PDF document text
    • https://redunexodozik.weebly.com/uploads/1/3/0/8/130814050/votixev.pdfIn PDF document text
    • https://kekerisasil.weebly.com/uploads/1/3/0/7/130775365/kuruxobewi.pdfIn PDF document text
    • https://gevafitasib.weebly.com/uploads/1/3/1/3/131380901/1429013.pdfIn PDF document text
    • https://gukepofefefika.weebly.com/uploads/1/3/1/4/131437977/sorukovenobisuteloka.pdfIn PDF document text
    • https://site-1039958.mozfiles.com/files/1039958/54688631752.pdfIn PDF document text
    • https://site-1039279.mozfiles.com/files/1039279/42614369382.pdfIn PDF document text
    • https://site-1039528.mozfiles.com/files/1039528/rilapisugejebaroguk.pdfIn PDF document text
    • https://site-1038702.mozfiles.com/files/1038702/vusalivabasa.pdfIn PDF document text
    • https://genigudepa.weebly.com/uploads/1/3/1/0/131070712/bekalan.pdfIn PDF document text
    • https://kuwofepex.weebly.com/uploads/1/3/2/7/132740654/e87b1fd2.pdfIn PDF document text
    • https://wepugimi.weebly.com/uploads/1/3/1/0/131070973/biride.pdfIn PDF document text
    • https://vuxozajuje.weebly.com/uploads/1/3/1/3/131379873/1867598.pdfIn PDF document text
    • https://fijojonibiw.weebly.com/uploads/1/3/2/6/132681787/5648329.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/1/0500/8654/3546/files/22844429715.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/3651/7286/files/titafupukowovafe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1420/7134/files/95274819359.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0481/2262/6211/files/how_to_use_logisim_on_mac.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0461/8122/0505/files/vista_sp1_wont_install.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0478/1041/2703/files/gravity_bow_pathfinder_2e.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0497/8167/0042/files/pof_premium_apk.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_off000077d9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77D9 5528 bytes
SHA-256: 44bd7cfdb8c72378c5c2bcf0835fcfe575166946a5b60cb85a57778ee1d517d3
font_01_sfnt_off00008ad5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8AD5 11508 bytes
SHA-256: ba90020fd56a269731ce14db3c8cf502d0a8582367282ba8975d69cbfd69724c