Malicious PDF — malware analysis report

Static analysis result for SHA-256 be3d1518880a34be…

MALICIOUS

PDF

65.6 KB Created: 2021-02-01 20:28:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 842e9fd2d1bd3d74796e917bea83a2de SHA-1: a5301494356b308f1bcc1100ac5f224b4c4940e3 SHA-256: be3d1518880a34be61f5247985192838de6f57aef2b96a0dfea7c20f6692d370
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://jacksth.ru/aws?utm_term=lagu+sunda+bungsu+bandung+daun+puspa PDF link annotation
    • https://doleroxewaforud.weebly.com/uploads/1/3/4/3/134322791/90026865.pdfIn PDF document text
    • https://nedidibizexoba.weebly.com/uploads/1/3/0/9/130969065/405eebdc9127a5.pdfIn PDF document text
    • https://cdn.sqhk.co/ketofebem/NBDjgjg/asmr_slicing_mod_apk_unlimited_money.pdfIn PDF document text
    • https://romizipomubem.weebly.com/uploads/1/3/0/7/130775952/0e8d00.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4498678/normal_5fc81c389b99d.pdfIn PDF document text
    • https://cdn.sqhk.co/dagufiwus/ijjbjhZ/11680226996.pdfIn PDF document text
    • https://boxorefo.weebly.com/uploads/1/3/0/9/130969922/8926450.pdfIn PDF document text
    • https://jevetokisavov.weebly.com/uploads/1/3/3/9/133997370/lujowebili_sosoxibozuwez_levunizediv.pdfIn PDF document text
    • https://cdn.sqhk.co/fuvonazavo/VfghEhj/billie_eilish_brother_gf.pdfIn PDF document text
    • https://cdn.sqhk.co/vagewovupug/7jdhage/43777057260.pdfIn PDF document text
    • https://cdn.sqhk.co/nezusoxe/hbzghhe/screen_recorder_pro_apk_no_root.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4377931/normal_6002eed440af4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4402000/normal_5fd628340b810.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/radubozufiwo/el_patriotismo_mijail_bakunin.pdfIn PDF document text
    • https://s3.amazonaws.com/faxaxos/neumonia_pediatria_colombia.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_off0000c73e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC73E 5080 bytes
SHA-256: bceb3f880ae4b1539644f31c74c96834a366a5945fc82f8f9db09035c7bcf49b
font_01_sfnt_off0000d895.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD895 9696 bytes
SHA-256: 4af0e05b1963d479421a1deba092f7054ed2649b8376ceb87f33d2f10ff169f2