Malicious PDF — malware analysis report

Static analysis result for SHA-256 23ccf40617ac02bd…

MALICIOUS

PDF

69.6 KB Created: 2021-02-22 01:24:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 9c3433d80b12c26a55800cd6076da110 SHA-1: 88f994adae8e4b9ddabebb6135b313f4060de7a3 SHA-256: 23ccf40617ac02bd47531c6d6e3f6b0aace0bc91a29a26e5a4338cfddd2499ee
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://druttle.ru/wix?keyword=marble+launcher+lab+physics+answers PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4451565/normal_6029638a58d33.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4501037/normal_600f8d1e8871b.pdfIn PDF document text
    • http://copyrightviolationcenters.com/my_movies_for_mac_downloadhvatq.pdfIn PDF document text
    • https://cdn.sqhk.co/rezalabobo/ithdKge/bmx_stunt_bikes_for_adults.pdfIn PDF document text
    • https://bolojowugupi.weebly.com/uploads/1/3/4/8/134886087/57f4a85.pdfIn PDF document text
    • https://gamekesilib.weebly.com/uploads/1/3/4/8/134892139/milojajobowaruma.pdfIn PDF document text
    • https://zigudufojivop.weebly.com/uploads/1/3/4/7/134718002/ab0c4.pdfIn PDF document text
    • https://zunitaxipef.weebly.com/uploads/1/3/1/3/131398356/5756121.pdfIn PDF document text
    • https://cdn.sqhk.co/kazakilen/rs7Igcp/baluwujisuxugigijo.pdfIn PDF document text
    • https://cdn.sqhk.co/silakozafi/hCidjaD/kirofoxif.pdfIn PDF document text
    • https://cdn.sqhk.co/jinuzekovodi/KYcpuhi/hokey_pokey_elmo_destruction.pdfIn PDF document text
    • https://polokoxukoneg.weebly.com/uploads/1/3/2/8/132816042/2532046.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417807/normal_5ff2a444b5978.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4444370/normal_6011d2a5586b0.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zorogeloma.epizy.com/85134107796.pdfIn PDF document text
    • http://poxabeb.rf.gd/rubasijikexekeriruseweg.pdfIn PDF document text
    • http://vobewegogiz.rf.gd/15402532042.pdfIn PDF document text
    • http://jujabezemaluwe.rf.gd/european_guidelines_helicobacter_pylori_treatment.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_off0000d3bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD3BC 5360 bytes
SHA-256: b365ea1f02e9db53aa7d9d7490d9a3bb34910e51ef1c604d4550b55a083b63ef
font_01_sfnt_off0000e60b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE60B 10316 bytes
SHA-256: 41a3cb61d31ae3b0fbce643177ae3cf15725c8a4855df27907eb2828cbcdab16