Malicious PDF — malware analysis report

Static analysis result for SHA-256 6a85faf3e9589dce…

MALICIOUS

PDF

73.2 KB Created: 2021-02-25 14:51:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: d9a682b952af23d374520b3bef9f6e13 SHA-1: a6edf1c58f6a33d89bc1f7e50c4c27b55539b74c SHA-256: 6a85faf3e9589dcecc2ad278b6e3773843f6e651079bc4fac80b38612361a288
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://jottigo.ru/award?keyword=how+to+set+temp+on+ge+oven PDF link annotation
    • http://vibomolivizim.iblogger.org/kanekuzuwivere.pdfIn PDF document text
    • http://lnstagramcopyrigtservice.com/loctite_406_data_sheet2yr54.pdfIn PDF document text
    • http://clientbluebadge.com/mdf_instruments_manual_blood_pressure_cuffy355b.pdfIn PDF document text
    • http://scrlt.xyz/jezojemek9a7.pdfIn PDF document text
    • http://fabimepela.22web.org/how_to_replace_pressure_washer_nozzle.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4468838/normal_6009eb50ca030.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393754/normal_5fe5a62f1b5d2.pdfIn PDF document text
    • https://cdn.sqhk.co/givogaduta/jfW3Njf/31337452975.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4426960/normal_5ff16a3a0956b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4385614/normal_5fc6429166275.pdfIn PDF document text
    • https://cdn.sqhk.co/gotakavapu/AK6hhjf/zeridugapiratabi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371509/normal_6031e20444d2f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481154/normal_5fdb0d7841b82.pdfIn PDF document text
    • https://cdn.sqhk.co/sebutarukaw/jiDiajg/juludatilodalelul.pdfIn PDF document text
    • http://paganel.world/59449809022bpudg.pdfIn PDF document text
    • http://yognat.space/full_form_of_iso_in_computer_sciencel8whf.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000e4d9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE4D9 4916 bytes
SHA-256: a15d97d64de386bfb65c4a4a3398910056824f99494802706716f4581a0c54b1
font_01_sfnt_off0000f5a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF5A0 10136 bytes
SHA-256: 7a0bd1af936b35f7be76d72ecf5ac478ea16c0d82ad3e85b237fc53edb42abca