Malicious PDF — malware analysis report

Static analysis result for SHA-256 d6328ab3a135dfe0…

MALICIOUS

PDF

71.7 KB Created: 2021-01-23 14:13:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-01
MD5: 9ff38d6e9aa84cd48677f379c020c0bd SHA-1: 999c161fbd900f36449ab31a0d020672f90da032 SHA-256: d6328ab3a135dfe0f7deb45cb7beb781b38eeef513a5cad59a12938617884b8e
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • 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 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://bologen.ru/own?utm_term=horse+running+fast+sound PDF link annotation
    • https://site-1168299.mozfiles.com/files/1168299/beginners_guide_to_coding_qualitative_data.pdfIn PDF document text
    • https://site-1172089.mozfiles.com/files/1172089/love_feeling_video_songs_in_tamil.pdfIn PDF document text
    • https://wojumujar.weebly.com/uploads/1/3/5/3/135396772/gigoxebavo.pdfIn PDF document text
    • https://cdn.sqhk.co/vusutazomaga/igj83jb/king_s_raid_plugin.pdfIn PDF document text
    • https://cdn.sqhk.co/tugitajusow/g0qBYhi/10346479141.pdfIn PDF document text
    • https://regutipedazuvi.weebly.com/uploads/1/3/1/0/131071249/8aac990161363.pdfIn PDF document text
    • https://pipenibeteza.weebly.com/uploads/1/3/4/5/134508730/rodexujilurexotovo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367312/normal_5fdc873848ae9.pdfIn PDF document text
    • https://site-1194081.mozfiles.com/files/1194081/97741108841.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4367000/normal_5fec2eaad1d1b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4410207/normal_5ff1f24b252a0.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://janeresofopojaz.epizy.com/picsart_gold_mod_apk_2018.pdfIn PDF document text
    • http://vijanemafe.rf.gd/hsn_code_for_sheet_metal_fabrication_work.pdfIn PDF document text
    • http://dolufin.epizy.com/pericentric_heterochromatin_formation.pdfIn PDF document text
    • http://ruzuzis.rf.gd/agreed_by_jj_hairston.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_off0000dee5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDEE5 5004 bytes
SHA-256: 793085d0bb0f61d691f20c4886804821d417aef325c98f5640d2a2deca8a134a
font_01_sfnt_off0000eff7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEFF7 10032 bytes
SHA-256: 8974df1df4501e3846f441f71653add07a2caf8049a9e93fd35ab88c057ca062