Malicious PDF — malware analysis report

Static analysis result for SHA-256 9f0fda92e2d0fe32…

MALICIOUS

PDF

66.5 KB Created: 2021-02-21 00:09:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 82a4a56734fe43c40a515c8941f32249 SHA-1: d47e56e6762c353259eb0dfa7288e4fbacbcaba9 SHA-256: 9f0fda92e2d0fe3246131d67e2abdc9e0e52ccb00cf1b348556a4687b758b2ee
124 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8307

Heuristics 4

  • 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
  • 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/strik?utm_term=philips+series+5000+beard+trimmer+attachment PDF link annotation
    • http://return-0.com/xozow9fjw3.pdfIn PDF document text
    • http://tasimidu.iblogger.org/kejijawezetetekubajejo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4500665/normal_60219c2fd0b1b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4461201/normal_6028b33d19db9.pdfIn PDF document text
    • http://leoidet.xyz/46184017778eudkq.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://kixelekiteduxaz.rf.gd/convert_into_word_docx.pdfIn PDF document text
    • http://xovurilarilowi.epizy.com/domutozixulexijozus.pdfIn PDF document text
    • http://zedebepibepus.rf.gd/2358365790.pdfIn PDF document text
    • https://s3.amazonaws.com/mamibis/vapip.pdfIn PDF document text
    • http://mowigefugitixa.epizy.com/58794748816.pdfIn PDF document text
    • http://norisufa.epizy.com/71929268242.pdfIn PDF document text
    • https://s3.amazonaws.com/sizabo/will_a5_2017_get_android_9.pdfIn PDF document text
    • http://raziwisubuza.rf.gd/gopro_hero_6_black_user_guide.pdfIn PDF document text
    • http://wofevumovef.epizy.com/media_player_classic_for_macbook_pro.pdfIn PDF document text
    • https://s3.amazonaws.com/jizubisetebof/87518200993.pdfIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000edfc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDFC 5396 bytes
SHA-256: 25f234f568acf064f82b08a0d380a04e1bc887f6f6c7b77f14adf257e3e7fc14

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