Malicious PDF — malware analysis report

Static analysis result for SHA-256 e4ef7ef980219f3a…

MALICIOUS

PDF

67.8 KB Created: 2021-02-23 18:38:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 010bc56a35e9b0798051a12273177f7c SHA-1: 535c9713be126af07868f2f8ef225545f50c2cc8 SHA-256: e4ef7ef980219f3ad546084d103e6e00bb08c5198468621a1dc1f12b7231cb42
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=escambia+county+arrests PDF link annotation
    • https://cdn.sqhk.co/bibilofefi/jbid0Fl/xesowonudezafaxudasif.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381980/normal_601b8535b5c86.pdfIn PDF document text
    • https://zajebujop.weebly.com/uploads/1/3/4/9/134902249/takilalosajumi.pdfIn PDF document text
    • https://vevuduwas.weebly.com/uploads/1/3/0/7/130775740/vanevefozusax_baseger_jobudalul.pdfIn PDF document text
    • http://linza.media/enlever_mauvais_oeil_avec_oeufyjbcl.pdfIn PDF document text
    • http://frukt.fun/nimazekuwunuberune2t6sz.pdfIn PDF document text
    • https://sovivagigeb.weebly.com/uploads/1/3/5/2/135296454/7930253.pdfIn PDF document text
    • http://rimisirotox.iblogger.org/chinese_ghost_story_game_apk_free.pdfIn PDF document text
    • http://evakuator-uga.ru/74730977891cs7xk.pdfIn PDF document text
    • http://idealica-italiaoficial.site/how_to_program_universal_remote_sanyo_tvl8p5h.pdfIn PDF document text
    • http://drive4mclaneaustell.com/mac_app_store_location_sierra065ht.pdfIn PDF document text
    • http://sell-toclick.online/blend_bubble_tea_skip_the_dishestgbrb.pdfIn PDF document text
    • https://nudiwosesi.weebly.com/uploads/1/3/4/3/134317077/31002d811e.pdfIn PDF document text
    • http://podipotekoi.ru/fawupuykp41.pdfIn PDF document text
    • http://bankrot-biznes.ru/noreredamurobif5a9ok.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://mafevela.rf.gd/environmental_bioremediation_technologies.pdfIn PDF document text
    • http://jerananixakuzeb.epizy.com/acer_chromebook_14_cb3-_431_manual.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_off0000cd8c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD8C 5112 bytes
SHA-256: bf1e9f34d1021ebb9a676c024b04f69f0d7a55a8b7bebd79a3cbb13cec42f787
font_01_sfnt_off0000dee7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDEE7 10368 bytes
SHA-256: f1cc6d1a41743f2fa3c86719878be11f5cb7d2ac12f47959c8eea535fe42b7d3