Malicious PDF — malware analysis report

Static analysis result for SHA-256 601192539c8a4157…

MALICIOUS

PDF

77.4 KB Created: 2021-01-28 15:06:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: d7b77a4d88bddcdc22f08259e7a3eeda SHA-1: 935020f639dc4c515e344a626147fce8fc152e55 SHA-256: 601192539c8a41573b395effa3816afa56682c52d332bd5e9527750de7d48e23
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://maypoin.ru/aws?utm_term=infosys+reading+comprehension+questions+and+answers PDF link annotation
    • http://getubij.66ghz.com/cinema_v2._0._5_apk.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4493602/normal_5ff4c39ea6f9b.pdfIn PDF document text
    • http://gerisekazaleg.22web.org/miburowedokebogosej.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4425217/normal_5fc75a2e9fbec.pdfIn PDF document text
    • https://cdn.sqhk.co/butaliwe/bHijwvs/tofukuvo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4411691/normal_60120a5ac60e7.pdfIn PDF document text
    • https://cdn.sqhk.co/vukupamita/rjeUJje/geviwizab.pdfIn PDF document text
    • https://cdn.sqhk.co/wiwifudu/WkhiMdc/how_can_you_keep_mosquitoes_away_naturally.pdfIn PDF document text
    • https://cdn.sqhk.co/bofilewidil/XzDRz3m/darkzone_idle_rpg_wiki.pdfIn PDF document text
    • https://cdn.sqhk.co/bexamajuw/5IKidA0/84143482074.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4387226/normal_5fdf8270f24f3.pdfIn PDF document text
    • https://cdn.sqhk.co/xojelumegasi/jdCjbfs/borubanerasid.pdfIn PDF document text
    • https://cdn.sqhk.co/vufisolepu/QXjgbhj/wofawomegakafurozobo.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4472186/normal_5febed7ba3bd4.pdfIn PDF document text
    • https://cdn.sqhk.co/daxegajok/tibhdqJ/globe_prepaid_promos_300_for_1_month.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://birotizedu.epizy.com/dawagaledesewomikiwetaget.pdfIn PDF document text
    • http://jabepujun.epizy.com/21904915137.pdfIn PDF document text
    • http://dejanubotikepiw.rf.gd/refokefekarajavoxovotige.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_off0000f10e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF10E 5792 bytes
SHA-256: 1ed36d034ecaa7d18daa704c6e93b13a7ea5fb135b3416133e5c27348d3fb95b
font_01_sfnt_off000104b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x104B4 10508 bytes
SHA-256: 729214fa8fbbc0cdbb6c395c5a2c6290a568e136a7f1ab8957d73d0d6928175e