Malicious PDF — malware analysis report

Static analysis result for SHA-256 c689b5a54d327bf1…

MALICIOUS

PDF

75.9 KB Created: 2021-01-30 18:51:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 4e6d7d8681f0d0b2565ee968e3ef0c0c SHA-1: 3e44910def05699817559ee47aeef8e6ca5335bc SHA-256: c689b5a54d327bf1eb89aa4e708e3284e996ead8d02ae4a7f8046256406139ca
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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 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://traffset.ru/wb?keyword=parakeet%20petco%20near%20me%20adoption PDF link annotation
    • http://eduha.online/273498631818xuia.pdfIn PDF document text
    • http://sait-ok.ru/91522452117d554c.pdfIn PDF document text
    • http://hangookoil.ru/6095832322nchw2.pdfIn PDF document text
    • http://copyright-securityx.com/denukobuwax16s30.pdfIn PDF document text
    • https://cdn.sqhk.co/nefijisob/iiijjXN/98787644943.pdfIn PDF document text
    • http://italdom.fun/bokewosevinenheu6.pdfIn PDF document text
    • http://org-fruit.space/89615285818jt0ld.pdfIn PDF document text
    • https://cdn.sqhk.co/gobajejuz/NmjegjP/hammer_horror_christmas_jumper.pdfIn PDF document text
    • http://duplicwcnj.space/fireboy_and_watergirl_3_unblocked9er13.pdfIn PDF document text
    • http://wordsidepost.top/lion_beaver_otter_golden_retriever8v81l.pdfIn PDF document text
    • https://cdn.sqhk.co/bunewonu/jbCij2S/14211304860.pdfIn PDF document text
    • https://cdn.sqhk.co/xiteduva/hhfW1if/wevukanedutavivuxuvu.pdfIn PDF document text
    • http://zesamoa.online/mobile_home_coaches_for_sale_in_floridapzu74.pdfIn PDF document text
    • http://genusadnlo.space/plague_inc_premium_unlocked_apkxya5p.pdfIn PDF document text
    • http://ueuniti.website/gas_prices_in_us_by_yearoqms0.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000ee4e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE4E 5072 bytes
SHA-256: 7c5b1b64062d2ca301f133484a5e4c198b08d416035482c821daa29a81ce35ea
font_01_sfnt_off0000ff7d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFF7D 10376 bytes
SHA-256: 4e5d14f6b4f8b090fa45bbfca6463a8b51f2e97ca1a0d1f91178b8e015c4b6d9