Malicious PDF — malware analysis report

Static analysis result for SHA-256 bd3d626cc58b48b3…

MALICIOUS

PDF

68.1 KB Created: 2021-02-17 23:04:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 2d6cf1c9f42613212741b4809a066b43 SHA-1: 471fb8a7d760c75283f88799004d83f21fd48d0e SHA-256: bd3d626cc58b48b3b173f44d59fbe8b12322e974ba43bc64fd938a6eaba95549
66 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • 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://jottigo.ru/wix?keyword=bcmon+monitor+mode+apk+download PDF link annotation
    • http://love-your-lips.online/tulelefakakukisf9hz7.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4421787/normal_5ff4c83294faa.pdfIn PDF document text
    • http://marinarus.space/vernier_caliper_practice_problems_with_answershrurq.pdfIn PDF document text
    • http://spencermcman.us/tutu_app_2019_ios0etm5.pdfIn PDF document text
    • http://autokenn.com/paxewidezakuxilifufatqu1at.pdfIn PDF document text
    • http://mipefukonuvav.iblogger.org/mental_illness_worksheets.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4463308/normal_5ff781beeb4c1.pdfIn PDF document text
    • http://legendnat.space/druid_shapeshift_5e_guidele943.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fogalefudomuj.epizy.com/aop_full_form_in_law.pdfIn PDF document text
    • http://kubemumibesedu.epizy.com/gugarewuwize.pdfIn PDF document text
    • http://mobotifiriw.epizy.com/nutville_horace_silver_sheet_music.pdfIn PDF document text
    • http://kulekewu.rf.gd/weniwazuxaxu.pdfIn PDF document text
    • http://wurunepoxu.rf.gd/luzoviduwunexuvik.pdfIn PDF document text
    • http://jolagetota.epizy.com/71244777247.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_off0000cfff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCFFF 5244 bytes
SHA-256: dffe14a2cc91b364dc67b5dad6df2c101ce4552d405bac43fd9e83c30a3d9780
font_01_sfnt_off0000e1cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE1CD 9988 bytes
SHA-256: 33e575008bd9bb42baa8ad52cfcc719fc63b3ad24aa7c4b3e2ed50ae7a219ea3