Malicious PDF — malware analysis report

Static analysis result for SHA-256 06d9feacaa4885c5…

MALICIOUS

PDF

71.4 KB Created: 2021-02-27 23:36:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: a29e4264f0cfc53f5d04627dc34a21c3 SHA-1: d0a1fe57caf0f4e9e5d3b3d12652ad2800906ad4 SHA-256: 06d9feacaa4885c539a8bf11be487ce263a8d66accfae8b14ab3d10c0a49c69c
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://midufefew.ru/award?keyword=how+to+clean+arm%2527s+reach+co+sleeper PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4388163/normal_5ff19a7dd8d71.pdfIn PDF document text
    • https://togazozaxezux.weebly.com/uploads/1/3/1/6/131606461/fusigopinana-dijivasiweramew-sibukeva-veveg.pdfIn PDF document text
    • https://wogizirimabote.weebly.com/uploads/1/3/5/3/135337148/pofapitade.pdfIn PDF document text
    • https://sibevuguz.weebly.com/uploads/1/3/4/8/134859718/xebipaj.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365584/normal_600c1b00ccf77.pdfIn PDF document text
    • https://cdn.sqhk.co/jilelemo/ZEijiih/49191146367.pdfIn PDF document text
    • https://moxigowa.weebly.com/uploads/1/3/0/8/130814106/4848113.pdfIn PDF document text
    • http://gvidilon.ru/44288219811cp7h1.pdfIn PDF document text
    • https://nelotimef.weebly.com/uploads/1/3/2/7/132740277/3192467.pdfIn PDF document text
    • http://rusherx.studio/49670179754cl7zy.pdfIn PDF document text
    • https://woseluwimi.weebly.com/uploads/1/3/4/1/134131525/a6f6649c421.pdfIn PDF document text
    • https://cdn.sqhk.co/sunomedude/Nicjajc/chess_king_learn_tactics_solve_puzzles.pdfIn PDF document text
    • https://cdn.sqhk.co/bugininaxi/AAhiMji/rulivewawo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450733/normal_601fd1e160a3e.pdfIn PDF document text
    • https://cdn.sqhk.co/dajusonas/fbOSvjj/61725048565.pdfIn PDF document text
    • http://tesocoin.online/law_of_agency_indian_contract_actdyox6.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/fupanabivote/allahabad_high_court_aro_question_paper.pdfIn PDF document text
    • https://s3.amazonaws.com/pekatikisuruki/ejemplos_algoritmos_sencillos_informatica.pdfIn PDF document text
    • https://s3.amazonaws.com/xufujofaleki/sazirozevawated.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_off0000da6d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA6D 5260 bytes
SHA-256: 7751d37c9011c1d7000841cabe16e4ddb97ce7f6ad529b0a6c5e6584eff598b9
font_01_sfnt_off0000ec3c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC3C 10580 bytes
SHA-256: aed6878d5db2f2cac435b7a8ff712ba953a8f8fed20191d875dcc7ddb7ff9eb9