Malicious PDF — malware analysis report

Static analysis result for SHA-256 d1e6845195246b3d…

MALICIOUS

PDF

39.7 KB Created: 2020-10-15 17:23:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-12-25
MD5: 0173bd09d166db9847ce7aa827986349 SHA-1: 04980b10c546a7c7069744789d18894e54b83d1b SHA-256: d1e6845195246b3d54136d3c50d50306c64829017b39d0f2b9259383f0a0225f
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://ttraff.club/pify?keyword=majduri+card+form+pdf+mp+download In PDF document text
    • https://jakedekokobara.weebly.com/uploads/1/3/1/3/131381480/1d44b872.pdfIn PDF document text
    • https://dutitujazekap.weebly.com/uploads/1/3/0/8/130814390/sidobojugonuxexoz.pdfIn PDF document text
    • https://viweposedijul.weebly.com/uploads/1/3/1/0/131070314/440e9b52fb1.pdfIn PDF document text
    • https://pavowojavujide.weebly.com/uploads/1/3/1/3/131398322/3284852.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366024/normal_5f873d988a7ac.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365606/normal_5f87452ed8a4c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365624/normal_5f8714b07cd59.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366407/normal_5f87453f211d9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366340/normal_5f87dfc625291.pdfIn PDF document text
    • https://buluzuzumaz.weebly.com/uploads/1/3/1/6/131636727/lesuk.pdfIn PDF document text
    • https://nurekagenarufab.weebly.com/uploads/1/3/1/6/131636906/5882255.pdfIn PDF document text
    • https://narogigadi.weebly.com/uploads/1/3/0/8/130874066/3034478.pdfIn PDF document text
    • https://jawasolasazilem.weebly.com/uploads/1/3/1/3/131379174/sefaritonos-nukivafeka-retisebop-regaxumex.pdfIn PDF document text
    • https://genigudepa.weebly.com/uploads/1/3/1/0/131070712/runemevurexuziwone.pdfIn PDF document text
    • https://site-1043330.mozfiles.com/files/1043330/jutiguporosimakevoboruxeb.pdfIn PDF document text
    • https://site-1037240.mozfiles.com/files/1037240/37941293537.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/1/0497/7800/0026/files/sotaximemafejuxafuxipip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0486/6503/4902/files/feravenifawogorow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0477/4353/3212/files/woodworking_gifts_ideas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6055/0046/files/waduba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0479/6094/8903/files/small_form_factor_graphics_card.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c8cd9b0b-20f5-4083-9581-e797349e4a4b/42591412031.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7095bc94-9ce2-4ad7-90ca-9c2f0dc70a1c/xatepi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a8c2e1a1-a52f-416b-8ecb-9703788d4c02/wovadebewimanadipikakuwo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e7ff36a1-4fc4-469c-8fab-44579576e442/52903548162.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f53dc91d-29a1-43f4-8784-1435bbfc87fb/vopotenununidusevifeligi.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_off00005d6a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D6A 5296 bytes
SHA-256: 68c8fdabbf6f28f714d22ff1a230026a0c44bfd96494166ff74909586018df05
font_01_sfnt_off00006f71.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F71 9800 bytes
SHA-256: 0119f7cc819c7ec5e9a24f162e3d28c5683787d9e7a6771c5f1954dab5614311