Malicious PDF — malware analysis report

Static analysis result for SHA-256 bda47e3499a2c744…

MALICIOUS

PDF

77.9 KB Created: 2021-06-07 11:52:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-24
MD5: ed4d9747d054c25fcd85d95e20637fb2 SHA-1: e4ea4accf7535cee0744db2d805ebf486fefeba7 SHA-256: bda47e3499a2c744bfbde2664a9ed926ba8046367fc01e9250eb1f93ee799fe7
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The sample was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The PDF contains numerous embedded URLs, with one prominent URL pointing to a site related to 'adidas yeezy 700 v3 azael size chart', suggesting a lure for phishing or scamming. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' further indicates a malicious structure designed to host multiple links on disposable domains.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://archism.ru/pbw?utm_term=adidas+yeezy+700+v3+azael+size+chart PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4367916/normal_5fc70f39c2a66.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4490256/normal_60bb7b70348b3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4447097/normal_5fd3cc0c0a62a.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://jabevexizoj.pbworks.com/w/file/fetch/144776964/33934468509.pdfIn PDF document text
    • http://poforezufovu.pbworks.com/f/cannizzaro_reaction_with_formaldehyde.pdfIn PDF document text
    • http://farejutotej.pbworks.com/f/download_minecraft_java_edition_apk_android_gratis_apkpure.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/253f5763-8abc-46cc-b8fc-e5371592dcec/bitazenulepivufepa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2104d018-4ee3-4086-92b8-21cf2c7eb641/63196936078.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9326ee02-7ed2-4c75-91bb-83fa68275eae/nekogu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6dbbd693-a60f-4135-8eff-61e735103273/gopojetitolarobomevaf.pdfIn PDF document text
    • http://daridameku.pbworks.com/w/file/fetch/144637950/how_to_see_starlink_satellites_in_uk.pdfIn PDF document text
    • http://bawamotijeku.pbworks.com/f/barevutujuzuboxarag.pdfIn PDF document text
    • http://zivovot.pbworks.com/f/80587740625.pdfIn PDF document text
    • http://fatakalewene.pbworks.com/f/cambridge_first_certificate_in_english_4_students_book_with_answers_free_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/08a6588b-23a4-445c-a880-2c5ee5031971/50121069206.pdfIn PDF document text
    • http://donigipoz.pbworks.com/w/file/fetch/144707895/74476913785.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b5a2a0b7-12fe-4ae7-94f1-139631d7acf5/free_will_definition_christianity.pdfIn PDF document text
    • http://kufavuva.pbworks.com/f/fudejulefivinexogem.pdfIn PDF document text
    • http://kinuwibe.pbworks.com/w/file/fetch/144453489/lekowemopafuwodiwofexal.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_off0000f0ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0EE 5612 bytes
SHA-256: e8f8a68265da1255bfc7be95b2bef0ce71995805a6c77e43c501e4d2e8a1137c
font_01_sfnt_off00010417.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10417 11200 bytes
SHA-256: cf85a65ac60b1bb9001d861cf22849b236c4b12de1fbd4427fb69748ee5fb142

Open this report in the interactive analyzer, or submit your own file for analysis.