Malicious PDF — malware analysis report

Static analysis result for SHA-256 d79d47ab0d625daa…

MALICIOUS

PDF

70.6 KB Created: 2021-02-23 13:47:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: d26859e40f5d4ddf2afce7ea54712d0c SHA-1: 13275b041e672f0e2c66a0d3cbed739f4ae00efd SHA-256: d79d47ab0d625daabb9f2cd74607d8591646b867b566939bbc6b424900c29d0a
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://jacksth.ru/wix?keyword=rain+x+expert+fit+windshield+wipers PDF link annotation
    • https://xezixopizanew.weebly.com/uploads/1/3/5/3/135314636/wopaduvesasa-jukumediloze.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369330/normal_5fd7c1ce5f3aa.pdfIn PDF document text
    • http://nicepics.xyz/neptunia_rebirth_2_stella_s_dungeon_guidex8dw6.pdfIn PDF document text
    • https://cdn.sqhk.co/gukugifixija/iajdjgr/world_multi_craft_exploration_survival.pdfIn PDF document text
    • http://infonewstravel.com/55483256043p83n1.pdfIn PDF document text
    • http://amorexpo.com/koriziqd6b4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4411915/normal_6014b44bb1312.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459163/normal_600a4e66ea6fb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4460230/normal_601663ca251bf.pdfIn PDF document text
    • http://1green.space/ice_cream_delivery_near_me_nowpin75.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://ziriboxemo.epizy.com/kobolds_and_catacombs_priest_guide.pdfIn PDF document text
    • http://pitolujebenim.epizy.com/46282077474.pdfIn PDF document text
    • http://lajirobodogew.epizy.com/9111194733.pdfIn PDF document text
    • http://tunozesanapi.rf.gd/zupofexetemorojekigos.pdfIn PDF document text
    • http://sojizodujibibo.epizy.com/vetuvekuguwuvuzon.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_off0000d782.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD782 5296 bytes
SHA-256: efefa5c1be97de637b28f345f64837ef314cf4f1186d6eed116ccf35db61c976
font_01_sfnt_off0000e99e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE99E 10428 bytes
SHA-256: c79815f9ec9e24db2aec3b3d1dcfb18a1898d312fc6e6c95285b0b4c3fc62eba