Malicious PDF — malware analysis report

Static analysis result for SHA-256 22a60056198a0e4f…

MALICIOUS

PDF

71.1 KB Created: 2021-02-19 04:17:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: de5e3fc1c3ef2c94f021df83ddbe228f SHA-1: 46248cb76dd1f94d1892254ba5096f5bb8c07dfd SHA-256: 22a60056198a0e4f3538cad6477fd7d4925cd26a946a61d59fe11579683ae3ff
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://leonvi.ru/wix?keyword=nora+roberts+pdf+free+download PDF link annotation
    • http://getliterate.online/taxabalademali630p3.pdfIn PDF document text
    • http://samo-katim.ru/vaxelimoligogilotusixot7umv.pdfIn PDF document text
    • https://cdn.sqhk.co/doginifa/ajhIxzo/66711441586.pdfIn PDF document text
    • http://meinekarten.best/inversor_abb_100_kw_datasheettkwzw.pdfIn PDF document text
    • https://cdn.sqhk.co/tajudozizif/iajjicQ/table_ice_hockey_3d_pro_driver.pdfIn PDF document text
    • https://cdn.sqhk.co/naxupowu/hkjdibn/bulokos.pdfIn PDF document text
    • https://foxazejepanobo.weebly.com/uploads/1/3/1/6/131637169/a1bbbfbfd52c.pdfIn PDF document text
    • http://avtoshkola-region26.ru/26577384503iokyt.pdfIn PDF document text
    • https://cdn.sqhk.co/noxisoture/ieerxje/fantasy_flight_games_star_wars_x-_wing.pdfIn PDF document text
    • http://itasda.online/zane_and_the_hurricane_chapter_13x6l3.pdfIn PDF document text
    • https://cdn.sqhk.co/lojumisebu/2myxidD/pagogoneg.pdfIn PDF document text
    • https://mibokedizigabu.weebly.com/uploads/1/3/1/4/131437832/44642.pdfIn PDF document text
    • https://cdn.sqhk.co/xitilesuxiw/ijHCbhb/lojuwuwupijax.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/bomifabipi/50553923100.pdfIn PDF document text
    • https://s3.amazonaws.com/zonivezada/sugar_skull_pumpkin_carving_templates.pdfIn PDF document text
    • https://s3.amazonaws.com/tinajabizoreguf/basha_audio_songs_tamil.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_off0000db5c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB5C 5236 bytes
SHA-256: 8d9405dee481af050b72f2e18d003bee5b20d78fd23647fdd565a50c25154247
font_01_sfnt_off0000ed47.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED47 9964 bytes
SHA-256: c91f497b69f1137cd2f3a1c111d7dba00b4dfd34890a0cae7ef61b5dffd765b1