Malicious PDF — malware analysis report

Static analysis result for SHA-256 897ebb9924630bba…

MALICIOUS

PDF

85.0 KB Created: 2021-02-28 05:52:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 5112aac03cd1178e9ec43416c97fe7a0 SHA-1: 1c63c57e125c2e17e049bc9ef506b7c4926b3434 SHA-256: 897ebb9924630bba9323b3eb83597e72620ffe4ec2ce5bc6b4e113269c1786dd
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://leonvi.ru/aws?utm_term=what+is+nhs+constitution PDF link annotation
    • https://cdn.sqhk.co/masunidupag/jggcejd/best_tile_spacing_for_shower_wall.pdfIn PDF document text
    • http://xogunajeraxuda.mywebcommunity.org/54879991729.pdfIn PDF document text
    • https://cdn.sqhk.co/rukokota/ja0Kpja/painter_mobile_full_apk_download.pdfIn PDF document text
    • https://xiriwedonup.weebly.com/uploads/1/3/4/2/134265341/zikozeruwivus.pdfIn PDF document text
    • http://jiwujat.iblogger.org/79004149486.pdfIn PDF document text
    • https://cdn.sqhk.co/durotula/Uciwnjf/bojanon.pdfIn PDF document text
    • http://coupons2020.info/662861896764kugq.pdfIn PDF document text
    • https://bofuvozera.weebly.com/uploads/1/3/5/3/135331850/7d144bfd6d395a9.pdfIn PDF document text
    • https://wasefopepaseb.weebly.com/uploads/1/3/1/8/131856398/b3a356912653417.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://jopepojapaz.rf.gd/giderametenezij.pdfIn PDF document text
    • http://turufefi.rf.gd/51695421300.pdfIn PDF document text
    • http://ximitexus.epizy.com/under_the_dome_season_2_episode_3_dailymotion.pdfIn PDF document text
    • http://wenuwobowikowax.rf.gd/samsung_akg_eo-ig955_review.pdfIn PDF document text
    • http://lonuduvikis.epizy.com/fluke_115_multimeter_datasheet.pdfIn PDF document text
    • http://rozipiliwune.epizy.com/wheel_on_the_bus.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_off000111ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x111AD 4772 bytes
SHA-256: 771d21559ff63f3efb5c35acff2cd48d8035e754ed8752ef9959a5dad32c26ce
font_01_sfnt_off000121f7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x121F7 11256 bytes
SHA-256: 4c640b741a88bdaebc2d9c5b9f81918c00fc149783b1e26fdda48352db36075c