Malicious PDF — malware analysis report

Static analysis result for SHA-256 01acdc932ec39e79…

MALICIOUS

PDF

69.8 KB Created: 2021-02-15 08:51:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 1af47f3557fbc97a955671284afd317a SHA-1: 3d0bcea096578d886b9d5463b5ab89d98a88cfa5 SHA-256: 01acdc932ec39e791ef7a7dfc5ed24e6b7c0ff4ca7ee1468171dbd470f95a4b2
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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 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://baarspo.ru/wb?keyword=alarmsense%20manual%20call%20point%20installation%20guide PDF link annotation
    • https://wisatevifo.weebly.com/uploads/1/3/0/7/130775851/nigiramuv-dezamu-kekevuxa-sesas.pdfIn PDF document text
    • http://bitcoins-profits.com/zirodwnlq8.pdfIn PDF document text
    • http://24magazine.ru/upsssc_je_syllabus_2016k56vo.pdfIn PDF document text
    • http://mmuuue.space/gegesizo8zsbh.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4425737/normal_6027d0e34b0b8.pdfIn PDF document text
    • https://lewovabarififu.weebly.com/uploads/1/3/1/4/131453312/govatujakob_dugenoda.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379984/normal_5fdc1e2850e1e.pdfIn PDF document text
    • http://vittorguxx.site/12065456670ltm3b.pdfIn PDF document text
    • https://xifexovajebim.weebly.com/uploads/1/3/0/7/130740184/gozurinivupa_jigikaxi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413590/normal_6023d9f2a4f7e.pdfIn PDF document text
    • http://tranquils.space/listen_english_daily_practice_ios0rlwn.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4384835/normal_5fcc02c928fe8.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/gazijewevan/82338742716.pdfIn PDF document text
    • https://s3.amazonaws.com/fejatepudopito/input_type_date_format_in_angular.pdfIn PDF document text
    • https://s3.amazonaws.com/lerezazo/counterfeit_note_detection_guide.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_off0000d53b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD53B 5380 bytes
SHA-256: 0c6516abd6cac7878d74eecff203aec519f2833cd38c3eae4a21240583572049
font_01_sfnt_off0000e76f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE76F 10124 bytes
SHA-256: a86d55a730402a635b6a23dc7276206fcc2dca19d218bfbce3cdd43c4da8ba25