Malicious PDF — malware analysis report

Static analysis result for SHA-256 c414b3e9b2063ae2…

MALICIOUS

PDF

70.6 KB Created: 2021-02-18 05:16:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 2d6e7066f569484d02eec302a8749420 SHA-1: f737d36983fd411c55e7818f1a518139de5c5ef3 SHA-256: c414b3e9b2063ae2fc7b12091ad3e1f25c92a42c692e17f249847065fca5bf82
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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/wb?keyword=chauvet%20obey%2070%20dmx%20addressing PDF link annotation
    • http://damvglaz6.xyz/vazoviwerudarowipuzemajip6p5z.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426945/normal_6021d4b46d731.pdfIn PDF document text
    • http://keepmaxi.space/nova_launcher_prime_apk_download_2020nwbb8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476133/normal_5fd75a5ccbe93.pdfIn PDF document text
    • https://bununijadepijag.weebly.com/uploads/1/3/5/2/135298825/ronoviju.pdfIn PDF document text
    • https://cdn.sqhk.co/tejikeluz/hgGjfje/whole_catfish_recipes_fried.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412592/normal_5fe6126225603.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481839/normal_60299a0adc818.pdfIn PDF document text
    • https://cdn.sqhk.co/fawabanof/QXICie4/kat_deluna_drop_it_low_song_download.pdfIn PDF document text
    • https://cdn.sqhk.co/kogoruzojif/diHSiil/6298980760.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4416806/normal_5fe31a67007d8.pdfIn PDF document text
    • http://filemarker.store/financial_accounting_and_reporting_cpa_20182708i.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vutagefen.epizy.com/brantley_gilbert_fire_brimstone.pdfIn PDF document text
    • http://gagafexekoxoseb.epizy.com/vewolajaranafanisejeni.pdfIn PDF document text
    • http://fivasire.rf.gd/chrysler_town_and_country_2006_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_off0000d3b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD3B5 5704 bytes
SHA-256: e5f7f4a6e35d93d0fcaf32729270dfc514c780ceeb77237c57bb41af7a01c5a8
font_01_sfnt_off0000e702.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE702 11316 bytes
SHA-256: e8c6fd30bab79a29096561acd8a96eeb86ca30af354c5a8c93cb09b3524bcf06