Malicious PDF — malware analysis report

Static analysis result for SHA-256 49c193b1090ac200…

MALICIOUS

PDF

64.8 KB Created: 2021-02-19 11:06:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: eb0993fceb113df6577b3b5e05d16906 SHA-1: 718e6e9244a1e5c919ec7b297e0ba7c8136c40fa SHA-256: 49c193b1090ac200cd97314a1acd01796f928b84cb0256106dc4faf41a2a087a
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://leonvi.ru/wix?keyword=motorcycle+manual+dmv PDF link annotation
    • https://sedapelagug.weebly.com/uploads/1/3/4/1/134109100/183265b04d86ae4.pdfIn PDF document text
    • https://cdn.sqhk.co/xivovido/ZidgcrM/70957275010.pdfIn PDF document text
    • https://dobisuji.weebly.com/uploads/1/3/1/4/131454523/06c80.pdfIn PDF document text
    • https://cdn.sqhk.co/jevamivuvugi/wgdjhgc/ridimulonitiponigenotafu.pdfIn PDF document text
    • https://cdn.sqhk.co/wusoxopejezo/jfhiNjb/43534251570.pdfIn PDF document text
    • https://cdn.sqhk.co/pagifizipafo/Eheghhe/download_king_of_kung_fu_fighting_mod_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/jabosuve/iaQjhLw/90991044593.pdfIn PDF document text
    • https://kusavavatixe.weebly.com/uploads/1/3/4/8/134878613/4518046.pdfIn PDF document text
    • https://vifutezovabul.weebly.com/uploads/1/3/1/4/131408528/1574199.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zatorir.epizy.com/10933984671.pdfIn PDF document text
    • http://suzujuvejis.epizy.com/girl_baby_name_list.pdfIn PDF document text
    • http://kexeban.rf.gd/archeologia_romana.pdfIn PDF document text
    • http://dosidojabar.epizy.com/bluestacks_install_apk_from_pc.pdfIn PDF document text
    • https://s3.amazonaws.com/bidivo/diarios_de_una_motocicleta_libro.pdfIn PDF document text
    • http://zilemugas.epizy.com/contoh_soal_akuntansi_perusahaan_jasa.pdfIn PDF document text
    • https://s3.amazonaws.com/sugowubuf/human_body_systems_worksheet_doc.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_off0000c3ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC3CE 5076 bytes
SHA-256: c605a62ba44280d276ad0d303e2e97fb72d7aadc63ccc54f53143f398dadf303
font_01_sfnt_off0000d50b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD50B 9704 bytes
SHA-256: e724665f33e8c192ae60d706dab3f973659c4ccf741561ae4ddb08c37a3ba07f