Malicious PDF — malware analysis report

Static analysis result for SHA-256 05275d2c69f8da47…

MALICIOUS

PDF

63.8 KB Created: 2021-02-21 12:01:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: ede46e73151c506ceabc48ba94643602 SHA-1: c45088c32e123181c81a2e9764be5233958d5191 SHA-256: 05275d2c69f8da47e8cd418d86153a9a22de4f8e9e29b5fae601d95582f2b4cf
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://seumenha.ru/wix?keyword=ffa+emblem+colors PDF link annotation
    • http://copyrightsupportforlnstagram.com/90550570368mkhwr.pdfIn PDF document text
    • https://kawifapexevudo.weebly.com/uploads/1/3/4/7/134711131/41039d48bff.pdfIn PDF document text
    • https://musisemikalig.weebly.com/uploads/1/3/4/6/134694348/ad02e62d27.pdfIn PDF document text
    • https://cdn.sqhk.co/molivovuki/jchijhG/talking_dog_buttons.pdfIn PDF document text
    • http://pexukakadom.22web.org/anaconda_python_mac.pdfIn PDF document text
    • http://prostosite.site/60353049050y1pti.pdfIn PDF document text
    • http://vonokumi.iblogger.org/formation_alternance_ressources_humaines_lyon.pdfIn PDF document text
    • https://voxepobar.weebly.com/uploads/1/3/4/6/134668427/wuliba_magexa_favumani.pdfIn PDF document text
    • http://dazemuwemez.22web.org/script_html_template.pdfIn PDF document text
    • http://kieverts.xyz/kopebovozojisuxakanol2fa8.pdfIn PDF document text
    • https://bolowotusupiwam.weebly.com/uploads/1/3/5/3/135300352/fuvazesawaxog_nizenewotakavuf_mejoga_dikuwuzedotudo.pdfIn PDF document text
    • https://xizadububexo.weebly.com/uploads/1/3/4/5/134595199/7240324.pdfIn PDF document text
    • https://cdn.sqhk.co/xekemini/jgBjciW/netiratinam.pdfIn PDF document text
    • http://pojorabe.iblogger.org/home_zone_security_light_installation.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://nizegabimuremiv.rf.gd/sarcophagus_model_template.pdfIn PDF document text
    • https://s3.amazonaws.com/sifawekujiki/yowhatsapp_ios_12._2.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_off0000bf93.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBF93 5124 bytes
SHA-256: 6389c08ef7b7a734c686c81fe22fb15334c7b66f74b4ff3b961529345a644f64
font_01_sfnt_off0000d0ec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD0EC 9848 bytes
SHA-256: 716b55acd094bcc84878b9d6677843ce78e5b2489fc8373531f00bd294398f0e