Malicious PDF — malware analysis report

Static analysis result for SHA-256 60428234d32fd22d…

MALICIOUS

PDF

66.8 KB Created: 2021-02-15 15:55:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 2fbbed7980be00bc9c99595aa9b8decb SHA-1: efe5da8699d23825e1b9d5a3d06efba0f7c1a283 SHA-256: 60428234d32fd22df43bb2d5891cba9c30b47f5e0e3cf1b560ccda4a95437a17
126 Risk Score

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://baarspo.ru/wix?keyword=our+father+worksheet+ks1 PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4388627/normal_60112bf851b26.pdfIn PDF document text
    • https://cdn.sqhk.co/jefulajidi/eShapic/talesibovogumobafeveso.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4479905/normal_5fdcdcf6e92fe.pdfIn PDF document text
    • http://taxafig.66ghz.com/21020308196.pdfIn PDF document text
    • https://rogetaguw.weebly.com/uploads/1/3/1/4/131407632/0e971.pdfIn PDF document text
    • https://cdn.sqhk.co/xunixenovapi/cieFjan/mini_bike_racing_melbourne.pdfIn PDF document text
    • https://cdn.sqhk.co/bidogefapo/EShjfzi/pozogegerigagagi.pdfIn PDF document text
    • https://watumuguv.weebly.com/uploads/1/3/2/6/132695830/12b06b237b4cec7.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://ramasewo.epizy.com/compress_mac_preview.pdfIn PDF document text
    • http://jonukufazok.rf.gd/xuxirojitefobitifib.pdfIn PDF document text
    • https://s3.amazonaws.com/tapexiw/cesarean_operation_videos.pdfIn PDF document text
    • http://ravuxisopol.rf.gd/dujijumadilixiluvagu.pdfIn PDF document text
    • http://nujowizuwumug.rf.gd/chidinma_kedike_instrumental.pdfIn PDF document text
    • https://s3.amazonaws.com/safenalavojuwu/77554263692.pdfIn PDF document text
    • https://s3.amazonaws.com/xomudufe/latex_report_class_chapter.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_off0000cab1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCAB1 5060 bytes
SHA-256: 0e460a2df2aae687cde81e50a52bcfe6fcc04fe2dbab9a51b7d1251acb38e9bd
font_01_sfnt_off0000dbfb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDBFB 10124 bytes
SHA-256: d1523f821b6ade244c035e12c47ca47716d253480bdd2a6ebd1aafe4504c79ec