Malicious PDF — malware analysis report

Static analysis result for SHA-256 1cbc430aa6758905…

MALICIOUS

PDF

65.9 KB Created: 2021-01-28 03:08:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 3c47e8730eb9c8e915537b1c7cefbd10 SHA-1: f2edecdab7a7a9a9635da6e205d0b900c3316a41 SHA-256: 1cbc430aa6758905e4823d337c4d55f935e93f87a9d606fffb893a25ea851f4c
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://leonvi.ru/wb?keyword=crossword%20mysteries%20season%201%20episode%202%20dailymotion PDF link annotation
    • http://robertferrell.net/72738228198iw28o.pdfIn PDF document text
    • http://wugigazugijub.22web.org/74645121229.pdfIn PDF document text
    • http://jasapremium.xyz/53579342648sied.pdfIn PDF document text
    • http://berkeciftci.net/florerias_elegantes_centrosi8olg.pdfIn PDF document text
    • http://money-team.site/studio_54_pics_no_longer_acceptablezf1wj.pdfIn PDF document text
    • https://cdn.sqhk.co/difixoruze/WhejgUz/kigojituzija.pdfIn PDF document text
    • http://worldthailand.fun/bibivugajuratugh8sbq.pdfIn PDF document text
    • http://mimasajikataza.iblogger.org/pepcid_davis_drug_guide.pdfIn PDF document text
    • http://thepropheticapp.com/hit_tha_roof_speed_gangrnknc.pdfIn PDF document text
    • http://datinge.site/kasurimujifogewedepinosszmqu.pdfIn PDF document text
    • http://wedogadev.iblogger.org/android_forum_app_source_code_github.pdfIn PDF document text
    • https://xiligori.weebly.com/uploads/1/3/1/4/131411896/9718632.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fugovolit.rf.gd/shyamali_ranchi_admission_form_for_class_11.pdfIn PDF document text
    • http://topawod.epizy.com/kali_linux_tools_ubuntu.pdfIn PDF document text
    • https://s3.amazonaws.com/wazagidonux/69367279810.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_off0000c545.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC545 5388 bytes
SHA-256: 86304f229ca11efdec6aaed38122a63baf5114dfa38b9e23d170edb1bef90b6c
font_01_sfnt_off0000d795.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD795 10212 bytes
SHA-256: 1587681ed4313861003a21c4a75877dca2651f00cda5f97010a7970a8fb94895