Malicious PDF — malware analysis report

Static analysis result for SHA-256 12f165fe6e69aaef…

MALICIOUS

PDF

73.0 KB Created: 2021-02-12 21:47:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: ce56d6c404bdd83925c1ed1e7bc565f4 SHA-1: 38b7e727ea0fb48394dcbfdf4af1fb8ebc3ca13e SHA-256: 12f165fe6e69aaefe1016ec84efc2f5e50d19039715e84566aadb631a2376100
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://jacksth.ru/wb?keyword=aerodynamic%20shape%20of%20car%20body%20pdf PDF link annotation
    • http://vidoxilaxugak.22web.org/92144127676.pdfIn PDF document text
    • https://xijeruwenuvu.weebly.com/uploads/1/3/4/0/134018409/sonula.pdfIn PDF document text
    • https://kikizesojumare.weebly.com/uploads/1/3/4/7/134718780/pomogoxavopufun.pdfIn PDF document text
    • http://fifuxuzod.iblogger.org/image_collage_app_free.pdfIn PDF document text
    • https://xodimazu.weebly.com/uploads/1/3/1/4/131408168/xemevoxovuwuxe.pdfIn PDF document text
    • https://vevinobe.weebly.com/uploads/1/3/4/4/134487659/bf373ee0.pdfIn PDF document text
    • https://cdn.sqhk.co/kuzetuzame/cjeZxij/xoxexuxukoxukuva.pdfIn PDF document text
    • http://voirop.xyz/dinesh_kumar_ias_marksheetdj4r8.pdfIn PDF document text
    • https://jiwebatije.weebly.com/uploads/1/3/3/9/133997557/4034024.pdfIn PDF document text
    • http://helpcenterbusiness.xyz/75235740392dc34t.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/kexamoxusinixu/idle_empires_guide.pdfIn PDF document text
    • http://walexesanub.rf.gd/nevijoligole.pdfIn PDF document text
    • http://nigugolesaxof.rf.gd/corrugated_sheet_suppliers_in_dubai.pdfIn PDF document text
    • http://zetamox.epizy.com/powerpoint_free_template_medical.pdfIn PDF document text
    • http://lizuruvabeg.epizy.com/37743595900.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_off0000deea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDEEA 5592 bytes
SHA-256: 2ad8d4bf3458e761e71f493bd01f230d31b4551db642277400344e6da6a75bcf
font_01_sfnt_off0000f1c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF1C9 11040 bytes
SHA-256: 14bffe75b12cc26a51cf597bab2c1829acf802ce90262cdcfa157627d5988cc3