Malicious PDF — malware analysis report

Static analysis result for SHA-256 209cfc48ce5c4e49…

MALICIOUS

PDF

63.9 KB Created: 2021-02-13 17:49:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: fcd962f52cdbd388b5867df752615d09 SHA-1: 34f2aac53db5ffdd9a43559e39135716ebdb87e1 SHA-256: 209cfc48ce5c4e49f882e898090f6bb89837cb464ac9a002348c7ad2ecfff830
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://jottigo.ru/wix?keyword=exponential+growth+and+decay+word+problems+worksheet PDF link annotation
    • https://cdn.sqhk.co/silijebutu/qid2eje/female_world_leaders_2019.pdfIn PDF document text
    • https://cdn.sqhk.co/sadoburola/hjughNF/bkash_app_cash_out_charge.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412761/normal_6027d4d0b2ce0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4401559/normal_5fd9d618bb455.pdfIn PDF document text
    • http://wowuzarupi.iblogger.org/56954712674.pdfIn PDF document text
    • https://cdn.sqhk.co/rozamulev/rjjcznj/grey_wolf_wallpapers_for_android.pdfIn PDF document text
    • http://creditreportusa.info/jokekuxipurosenuririlajoz23qt7.pdfIn PDF document text
    • https://cdn.sqhk.co/gupetipek/Onhashg/29271788097.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4368467/normal_5fd07f75c2217.pdfIn PDF document text
    • http://1yamal.space/kiwasavuvebopmgtp8.pdfIn PDF document text
    • http://formulamoney.top/seraripegi3q6xy.pdfIn PDF document text
    • http://help-feedback-amzn3.xyz/bajufagilogogin5w6yu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vunanan.epizy.com/71593519033.pdfIn PDF document text
    • http://zizolim.rf.gd/maryland_2018_football_media_guide.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_off0000bc26.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBC26 5908 bytes
SHA-256: b950fd02d48058eb88cd2e561936d8de65c871e9fb398c9705390e5201a68732
font_01_sfnt_off0000d033.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD033 9976 bytes
SHA-256: b97cc607a24641e3fd39047ffc4d3704d1a172a79de83e7738f101d3830cda35