Malicious PDF — malware analysis report

Static analysis result for SHA-256 39260051bc3cd5cc…

MALICIOUS

PDF

73.2 KB Created: 2021-02-20 03:41:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 28ac665320f09c4c66856e0846aea562 SHA-1: 6e63b301b8cde98eb9028655590d729773b00842 SHA-256: 39260051bc3cd5cc7bf13ad0affdc2d09eb09fe5096b7f48b5ce5fc2891fe62b
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://baarspo.ru/wix?keyword=certified+six+sigma+master+black+belt+handbook+pdf PDF link annotation
    • https://cdn.sqhk.co/gapekozuwa/apaFggd/5344593888.pdfIn PDF document text
    • https://cdn.sqhk.co/motulobugaji/bihahie/wakelulu.pdfIn PDF document text
    • https://junimadegerozo.weebly.com/uploads/1/3/4/0/134096607/5354769.pdfIn PDF document text
    • http://svoydvalend.xyz/plants_zombies_heroes_puzzle_partyy44xf.pdfIn PDF document text
    • https://zubosevofugojat.weebly.com/uploads/1/3/4/3/134307347/bivobafuxaxe_jusozeb_mipapotatatuvup.pdfIn PDF document text
    • http://tixshopclub.space/topism3ikd.pdfIn PDF document text
    • https://cdn.sqhk.co/sitosuduf/Bjhhh0L/96477263502.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/lekelepowo/21956357691.pdfIn PDF document text
    • https://s3.amazonaws.com/wixatax/timivelobetokunimetew.pdfIn PDF document text
    • http://bewojux.epizy.com/dofukesivok.pdfIn PDF document text
    • http://jibovofafef.epizy.com/nadeniwibi.pdfIn PDF document text
    • https://s3.amazonaws.com/mefonevimimix/domaxawozizi.pdfIn PDF document text
    • https://s3.amazonaws.com/juduk/chinese_landscape_painting_techniques_for_watercolor.pdfIn PDF document text
    • http://vowariki.rf.gd/pexipasiveparusodalapu.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_off0000e0e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0E6 5744 bytes
SHA-256: c716006f2de1afb11ecae09135bc85724ad28f77ee2ee59cabf8da433bd47a1f
font_01_sfnt_off0000f448.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF448 10328 bytes
SHA-256: f63feb0f50715d21e8ac798775dc563cafca0c11b99c5f4254334d32d006b069