Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd5ed20dbb6644b6…

MALICIOUS

PDF

71.7 KB Created: 2021-01-21 12:26:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 8da31151c2dcbb138c9b43e599e8a545 SHA-1: a39dc7efd64f173afc240aab041b5a9ed0d68b51 SHA-256: cd5ed20dbb6644b684a74724ff677b69a7b331c3e1e3bdb5ecb26d767a9ef0b1
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://baarspo.ru/wb?keyword=easy%20cake%20decorating%20ideas%20with%20icing PDF link annotation
    • https://site-1195811.mozfiles.com/files/1195811/angular_7_formcontrol_focus.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387419/normal_5f9ade22196ac.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4451033/normal_5fe6271b71fde.pdfIn PDF document text
    • https://site-1168371.mozfiles.com/files/1168371/best_ping_pong_vr_game.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4446283/normal_5fc6a4ad45760.pdfIn PDF document text
    • https://warubexe.weebly.com/uploads/1/3/4/6/134647576/0ee634207d674a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4469634/normal_5fc8c0aa279f8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4495037/normal_5ffa80f408283.pdfIn PDF document text
    • https://bozuwosumexoxal.weebly.com/uploads/1/3/2/6/132682772/vobeza.pdfIn PDF document text
    • https://zisamezasebav.weebly.com/uploads/1/3/3/9/133997726/3cb841fc.pdfIn PDF document text
    • https://teduzagegoxow.weebly.com/uploads/1/3/4/4/134400331/tekove-riwidamer-sadodawijojew.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387924/normal_5f8da424bc8d5.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/jevedijadiki/19483649354.pdfIn PDF document text
    • https://s3.amazonaws.com/zoluwivebiro/9994387718.pdfIn PDF document text
    • https://s3.amazonaws.com/gedimuta/16934866001.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_off0000daf2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDAF2 5384 bytes
SHA-256: 700377352fba485b7a4de46e190a6f4de294555c2e3456d0f4a0635e156a7d26
font_01_sfnt_off0000ed57.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED57 10824 bytes
SHA-256: 2846a09d8712c0117b56e3c8934e24b6128d0b7ef0c48278e5cccaf9cd4341c2