Malicious PDF — malware analysis report

Static analysis result for SHA-256 1db617b322c06586…

MALICIOUS

PDF

66.4 KB Created: 2021-02-20 19:12:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 60249b3af71c22189f8a58b1e26d58a8 SHA-1: b382e11fc220b723af9984a0fdc6c64fcc20495d SHA-256: 1db617b322c06586f323a648301362b4fcb686fbd4f1a4d9af07abdf7f3eb72c
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://jacksth.ru/wix?keyword=yu+gi+oh+duel+generation+cheats+ipad PDF link annotation
    • https://labelamujevodit.weebly.com/uploads/1/3/1/6/131606697/2307843.pdfIn PDF document text
    • https://vuzodafolo.weebly.com/uploads/1/3/4/7/134732359/rekutewed.pdfIn PDF document text
    • https://wotigutaz.weebly.com/uploads/1/3/4/3/134361511/7be06.pdfIn PDF document text
    • https://kuwupixunipava.weebly.com/uploads/1/3/3/9/133986845/tulozifipabule.pdfIn PDF document text
    • http://bufenukaje.22web.org/10425159460.pdfIn PDF document text
    • https://cdn.sqhk.co/tarolaser/2VieeCo/zagit.pdfIn PDF document text
    • https://cdn.sqhk.co/rixakowu/Cjf0lqo/xosenajemosowekeriteji.pdfIn PDF document text
    • https://cdn.sqhk.co/levowexesu/hj2fha9/peacemaker_gun_shop_legit.pdfIn PDF document text
    • https://cdn.sqhk.co/someteku/gceie1K/mojegexifofuluponugojuke.pdfIn PDF document text
    • https://mepodatadun.weebly.com/uploads/1/3/1/4/131452799/dodujev_telivezatimoki.pdfIn PDF document text
    • https://gozezitigaja.weebly.com/uploads/1/3/4/3/134340412/5836554.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://nipufafinera.epizy.com/jemozanoj.pdfIn PDF document text
    • http://kanisisasulaba.rf.gd/fokivogare.pdfIn PDF document text
    • http://rujemivegelap.epizy.com/zorowedopikirutijuxagamad.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_off0000c8d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC8D1 5296 bytes
SHA-256: cbd24a782296328ff74ba4ed97b41d70fbc5d4b5710f961452a6b655d691f004
font_01_sfnt_off0000dace.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDACE 9828 bytes
SHA-256: ec5411752e66a18dca4d62c53b738a6210c0cb18a9cfa98409e7747e3018409f