Malicious PDF — malware analysis report

Static analysis result for SHA-256 942fbdb1ba4cd048…

MALICIOUS

PDF

72.0 KB Created: 2021-02-12 07:37:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 27a5843ca1039844da2f81ee2aad9bfc SHA-1: 7eab2d34a68324e63451a63ff8522650540141a2 SHA-256: 942fbdb1ba4cd0487f6307db7cfacfb6856885c212e0adb65e441ee01f3efd94
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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=bandit+skyrim+uesp PDF link annotation
    • https://dagatofolake.weebly.com/uploads/1/3/0/8/130874029/jizivoxepulalezon.pdfIn PDF document text
    • https://cdn.sqhk.co/kezavilageg/07aNClk/mavijobibij.pdfIn PDF document text
    • http://3gusevshop.website/niragededisosolepaluvadikoxyn.pdfIn PDF document text
    • http://presentinsta.site/mobilumudinabuwonoxephx.pdfIn PDF document text
    • https://cdn.sqhk.co/zotofoza/hbtIrsU/imdb_movies_on_prime.pdfIn PDF document text
    • http://dirtygirl.fun/risc-_v_tutorialt4hbm.pdfIn PDF document text
    • http://trikotoria.ru/xogexatubexamatakidufru4.pdfIn PDF document text
    • https://cdn.sqhk.co/kixepijap/Qii00Ab/63412141724.pdfIn PDF document text
    • https://cdn.sqhk.co/vopupevomate/bgmBJ21/69089884294.pdfIn PDF document text
    • https://bunavomotuta.weebly.com/uploads/1/3/4/6/134606544/3680096.pdfIn PDF document text
    • http://lenudes.com/89516465842du9hx.pdfIn PDF document text
    • https://mefixakiderix.weebly.com/uploads/1/3/4/3/134319494/a5c6a8809a4dc53.pdfIn PDF document text
    • https://jufoximivovanad.weebly.com/uploads/1/3/4/0/134013024/kofobod.pdfIn PDF document text
    • http://lnstagramcentre.net/huey_helicopter_vietnam_model5eftj.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/kovezodepugov/85979293238.pdfIn PDF document text
    • https://s3.amazonaws.com/tikoweravisixu/gatifanij.pdfIn PDF document text
    • https://s3.amazonaws.com/sagotomagin/energy_journal_latex_template.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_off0000df1c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF1C 5288 bytes
SHA-256: 7ae43e71c8d54c9472def168d1df03686f958900ce3fac151245db96da698bb6
font_01_sfnt_off0000f10e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF10E 10056 bytes
SHA-256: 61eaa5c7a7fa0170fe944e36d4d20ba476b16472a901e46bf4442eafaa724541