Malicious PDF — malware analysis report

Static analysis result for SHA-256 89b72fab7cfb2167…

MALICIOUS

PDF

68.1 KB Created: 2021-02-16 17:26:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 46209455f78963e3a7b008f5bb6443a6 SHA-1: b2f44cd91b8601a4af8a921b64b2676d7be46bde SHA-256: 89b72fab7cfb2167b936e56fe578ba85b0d422f7727869173c8eb4c2f40364d4
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=blood+spatter+analysis+worksheet PDF link annotation
    • http://korsabarca.com/how_to_bypass_lock_screen_on_ipad_miniuo1vx.pdfIn PDF document text
    • http://honey-love.ru/plastic_bottle_house_constructionqcijo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476930/normal_6015b24d3634d.pdfIn PDF document text
    • http://usersdeviceprotectionservice.site/tulubitodizuromer1tibl.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470405/normal_602302b2f2fc6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4407057/normal_5fc7d52651c72.pdfIn PDF document text
    • https://jimekomu.weebly.com/uploads/1/3/1/4/131453536/2959945.pdfIn PDF document text
    • http://fly-drive.online/67232117863ydsjj.pdfIn PDF document text
    • http://mynasert.online/a_workbook_for_arguments_2nd_edition_exercise_answersdmt2v.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wexalaz.epizy.com/17798082633.pdfIn PDF document text
    • http://zipoxibel.epizy.com/razakalizowewisu.pdfIn PDF document text
    • http://xekurenu.rf.gd/31377521029.pdfIn PDF document text
    • http://tibepaxun.rf.gd/sports_listings_tv_guide.pdfIn PDF document text
    • http://nadovudeduxawos.rf.gd/free_business_card_and_letterhead_template.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_off0000cefd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCEFD 5356 bytes
SHA-256: da028efab34b386a10227251b828682177fa8c89131679c5de45e5f6b88e77bd
font_01_sfnt_off0000e142.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE142 10236 bytes
SHA-256: 09fae6ef55cf382a3b6c02aad6925333a3f6e77794b25075d07ceb1ff5793a8d