Malicious PDF — malware analysis report

Static analysis result for SHA-256 4c8e6e201996788d…

MALICIOUS

PDF

72.5 KB Created: 2021-02-27 01:13:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: ee8fe0cf11490045edc42aeed63448fb SHA-1: 7cf9f3dcebc5d54f469ae2a8138a70bf43a8860a SHA-256: 4c8e6e201996788dd86f9f529a6a564930c4b4108dc69f38c7fab5c188205ae7
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://pelibifir.ru/award?keyword=router+cisco+linksys+e1200+manual PDF link annotation
    • https://joxalazugadono.weebly.com/uploads/1/3/1/4/131437099/fdb47b7.pdfIn PDF document text
    • https://sinidagiritab.weebly.com/uploads/1/3/5/3/135386058/kejofurefegiwo-fajedeja-gavekame-zuzesazewo.pdfIn PDF document text
    • https://jazigibebegada.weebly.com/uploads/1/3/1/6/131606339/pipirivetejemed-kapapowisusa-sopexeboxono-vonirexolol.pdfIn PDF document text
    • https://zorusijumabek.weebly.com/uploads/1/3/4/8/134851431/boridajo-kagubaw-valefaripafim.pdfIn PDF document text
    • https://cdn.sqhk.co/fujotojaxob/y0iagh7/indonesia_business_visa_requirements_for_sri_lankan_citizens.pdfIn PDF document text
    • https://cdn.sqhk.co/baresupujar/ihihVih/olympic_archery_bow_price.pdfIn PDF document text
    • https://batusuxejodasav.weebly.com/uploads/1/3/1/8/131857782/2447783.pdfIn PDF document text
    • https://simebusuf.weebly.com/uploads/1/3/1/4/131406507/1421d.pdfIn PDF document text
    • https://zadavutuni.weebly.com/uploads/1/3/4/3/134343582/2393339.pdfIn PDF document text
    • https://cdn.sqhk.co/gesafafo/ejfRSii/highway_truck_racing_thrill_valley.pdfIn PDF document text
    • https://sipesavuw.weebly.com/uploads/1/3/4/6/134697333/lemegemuferasu.pdfIn PDF document text
    • https://cdn.sqhk.co/fetebutujo/idrMDM2/79431275756.pdfIn PDF document text
    • https://cdn.sqhk.co/wuluzajiroz/ggjwFh2/download_game_boxing_star_mod_apk_terbaru.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4480745/normal_601ef5174549d.pdfIn PDF document text
    • https://kobokudebixisog.weebly.com/uploads/1/3/5/3/135390699/394daec7e429.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://gemosufijubimup.epizy.com/memento_mori_libro.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_off0000df9e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF9E 5444 bytes
SHA-256: 067e2984e72e36cf53bdd0b725dc46832f70f84b082796cf9096e802f3a1668a
font_01_sfnt_off0000f217.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF217 10224 bytes
SHA-256: d1b2eb134ffc95857d7fdab1e33f063791955247b540660bb4ae726678eeead4