Malicious PDF — malware analysis report

Static analysis result for SHA-256 943e83f51d2feb3f…

MALICIOUS

PDF

72.4 KB Created: 2021-02-20 00:54:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: bbf3adcc9d43d22fa5f8df9354c372c7 SHA-1: a4d9e9766082bc371946678c2d08a94e24656a5e SHA-256: 943e83f51d2feb3f1158ac796292dee7be059b38d0c7cf1c8a1daa816dd34468
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://baarspo.ru/wix?keyword=who+is+the+strongest+angel PDF link annotation
    • https://xowitato.weebly.com/uploads/1/3/0/7/130776358/sekiruzonilalojidif.pdfIn PDF document text
    • https://cdn.sqhk.co/titolegun/CmLhcha/break_down_your_walls_lyrics.pdfIn PDF document text
    • http://2gusevshop.space/8010838263053vt8.pdfIn PDF document text
    • https://cdn.sqhk.co/wemitupu/XJ0zOjc/dunodaxonavuf.pdfIn PDF document text
    • http://esmoney.site/will_splat_bleach_ruin_my_hair1vrwv.pdfIn PDF document text
    • http://lufawobakisi.22web.org/97936709381.pdfIn PDF document text
    • http://vvinorama.website/stairmaster_run_cube_surfing_gameslkl1y.pdfIn PDF document text
    • https://cdn.sqhk.co/bovokolel/jchj2k1/haki_soccer_star.pdfIn PDF document text
    • https://cdn.sqhk.co/banijuwa/bEJPNij/wapukuripuveda.pdfIn PDF document text
    • http://aov.one/122085349625z5lp.pdfIn PDF document text
    • http://prosucre.pro/95594794822r3gzm.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/wumodukubaru/94895338491.pdfIn PDF document text
    • http://xaralitotido.rf.gd/kaxegojegarel.pdfIn PDF document text
    • http://renepipelusibav.rf.gd/14274895223.pdfIn PDF document text
    • https://s3.amazonaws.com/sasufufa/sad_face_gif.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_off0000e126.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE126 4960 bytes
SHA-256: 5e327daf47010e6cd40f250b566491642cd204d200a66da951ab27faa6a04e1d
font_01_sfnt_off0000f20c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF20C 10196 bytes
SHA-256: e50d3dbf3fae48efe835ecc1f92321d6774a5e8605f02819f19b6f8b12f3ebef