Malicious PDF — malware analysis report

Static analysis result for SHA-256 7c194a2b540ba806…

MALICIOUS

PDF

65.3 KB Created: 2021-02-06 21:32:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 4fb6d272195990bb8c7a93d0a2f4390a SHA-1: 08e4c101264f61c4fd75e3ecc4f47044bc8c73e9 SHA-256: 7c194a2b540ba806506ff354b2e104c7482a550d337d55e01b831319d0e0afb9
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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/aws?utm_term=ios+13+beta+2+developer+profile PDF link annotation
    • https://kerumesuni.weebly.com/uploads/1/3/4/1/134131613/2925a6052671.pdfIn PDF document text
    • https://cdn.sqhk.co/raxoxawupej/Ajigh9D/31032192668.pdfIn PDF document text
    • https://cdn.sqhk.co/vipatajase/Mgehj27/46268848510.pdfIn PDF document text
    • https://cdn.sqhk.co/pirujezexod/hieZ3hi/southwire_lighting_controls.pdfIn PDF document text
    • https://nanavefog.weebly.com/uploads/1/3/0/7/130775134/posulowevekovodeneso.pdfIn PDF document text
    • http://kovefubiwajulo.22web.org/allcast_premium_apk_full.pdfIn PDF document text
    • http://juxoxelobonoje.22web.org/piduvuxakomagijaja.pdfIn PDF document text
    • https://ronunute.weebly.com/uploads/1/3/1/0/131070227/bewojagededekin.pdfIn PDF document text
    • http://santecmb-sarl.com/dibuwatozomozipenifoduebgh0.pdfIn PDF document text
    • http://kifikawi.66ghz.com/xinovobadamizifiwa.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://nazonuretowu.epizy.com/business_whatsapp_apk_for_iphone.pdfIn PDF document text
    • http://dololesorut.epizy.com/active_directory_tools_free.pdfIn PDF document text
    • http://beritoka.rf.gd/37005464806.pdfIn PDF document text
    • http://zazuxidavo.rf.gd/34137132078.pdfIn PDF document text
    • http://mobisojew.epizy.com/rijiwetijanemawumavido.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_off0000c2d7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC2D7 5520 bytes
SHA-256: 52b0de190e3a3f3e982bb69ca9348a3ccfa4d9ba24a7472956e6721876d810b9
font_01_sfnt_off0000d5aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD5AA 10160 bytes
SHA-256: cc3d2c618942d491c160e1aa48f53385d8cfdb99a9115c6abd9d542515a67284