Malicious PDF — malware analysis report

Static analysis result for SHA-256 a472b0aad8155726…

MALICIOUS

PDF

74.9 KB Created: 2021-02-13 02:44:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 545186a8174b8956560af1fc1364fd2f SHA-1: fbcf2c1c88972d0604ec5fe7196dd329675c418d SHA-256: a472b0aad8155726bad293dad06999dc01641dce5479d09a863a233c17cd9ec8
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://baarspo.ru/123?utm_term=hyundai+tiburon+repair+manual+pdf PDF link annotation
    • https://cdn.sqhk.co/nofatazor/heXo0tB/relebirufufizatelurudefa.pdfIn PDF document text
    • http://arnautmebel.ru/child_care_benefit_formqitzr.pdfIn PDF document text
    • https://cdn.sqhk.co/jatizaru/cYicOhb/flight_sim_2018_mod_apk_free_download.pdfIn PDF document text
    • https://cdn.sqhk.co/bofimekowadu/eGZgj19/jumafamokatezabowun.pdfIn PDF document text
    • http://fionainthefield.org/lamaziwizb0b9.pdfIn PDF document text
    • http://eurofamily.pro/60460671979taj9r.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4406809/normal_602625996772b.pdfIn PDF document text
    • https://cdn.sqhk.co/donuvoduvedo/ggUfghf/45618768845.pdfIn PDF document text
    • http://dayzcommunity.info/zombie_monster_truck_cartoonej6oz.pdfIn PDF document text
    • https://cdn.sqhk.co/wazilisiko/hjdnhac/uber_drivers_california_employees.pdfIn PDF document text
    • http://zogoxadaxagan.iblogger.org/78367362908.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://rabopusafat.epizy.com/bituzajepiba.pdfIn PDF document text
    • http://beritoka.rf.gd/aashiqui_2_songs_naa_songs._com.pdfIn PDF document text
    • http://tujefozumuresul.epizy.com/kagetufafuwagazivumenekov.pdfIn PDF document text
    • http://zunebafovako.epizy.com/bali_road_map.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_off0000dd65.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD65 5212 bytes
SHA-256: bfb581ff993e67703943e1db4ce4318ee2ae768c5f3a8f7805bd4375fa23c074
font_01_sfnt_off0000ef0e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF0E 15224 bytes
SHA-256: 8cac8bda2b6d2662efda9837af4df25257b2bb3f11ab2171dcd81f3793251d51