Malicious PDF — malware analysis report

Static analysis result for SHA-256 1b2240fab810c21e…

MALICIOUS

PDF

69.6 KB Created: 2021-02-12 21:28:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 310086db794b3f09bf2ad47e7564dbdf SHA-1: 7da4a69b632eaad334dfa8757c98ecadf5b16139 SHA-256: 1b2240fab810c21e11baf3df44f810716bfc456a77282af67e5bda7cce674815
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://seumenha.ru/wix?keyword=bayer+advanced+season+long+weed+control+spray PDF link annotation
    • https://mofibowego.weebly.com/uploads/1/3/1/4/131406437/6705408.pdfIn PDF document text
    • http://aslixan.com/airline_pilot_uniform_rulesakgyc.pdfIn PDF document text
    • http://form-lnstagramcopyrightservice.com/niwupeka8zkhl.pdfIn PDF document text
    • https://paleforekirito.weebly.com/uploads/1/3/4/5/134579508/bivorawof_lokobitije_nesesoseze_kopanijo.pdfIn PDF document text
    • http://znasila.ru/pokemon_all_episodes_in_hindi_downloadupkzp.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4385437/normal_600623aba58a8.pdfIn PDF document text
    • https://bufodenoziro.weebly.com/uploads/1/3/4/5/134585066/4597636.pdfIn PDF document text
    • https://papafamibupa.weebly.com/uploads/1/3/0/7/130775965/puwij-guduwukalol-xozipomaz-bedoxugapoz.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4475571/normal_5ffe9f829823f.pdfIn PDF document text
    • https://lizunega.weebly.com/uploads/1/3/5/3/135395432/vamago.pdfIn PDF document text
    • http://mp4.design/powerpoint_template_thesis_presentation_freepp23w.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4445742/normal_5fea1f34d7f56.pdfIn PDF document text
    • https://lesamasipedu.weebly.com/uploads/1/3/0/7/130739144/4b9c9.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4481993/normal_5fe44c9099f98.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/juvetaso/apollo_slots_mobile.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_off0000d02f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD02F 5544 bytes
SHA-256: ec3df8d62e97beb4d8c5b7d5aced0d63dbf9fa51dd4b1832ab226b0e70863c41
font_01_sfnt_off0000e33b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE33B 10540 bytes
SHA-256: 25f37f3d71142ad7b892c8a16f0612863c9bff93e73354cda9f2398fe8fd2372