Malicious PDF — malware analysis report

Static analysis result for SHA-256 06f13021e766478d…

MALICIOUS

PDF

79.1 KB Created: 2021-03-03 23:07:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: b1dd98de6e27d78da7c86a0970aabcb2 SHA-1: d22e91b422610de48f713071b55ec3b5f6fda8bd SHA-256: 06f13021e766478d319c1b6c4c4756b78ee3cd4c39c3f13fbfda7353f3d867cb
124 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file contains embedded URLs and heuristics indicate it functions as a link farm, directing users to potentially malicious sites. The primary URL, 'https://crophysi.ru/award?keyword=how+many+calories+should+i+eat+in+a+day+when+trying+to+lose+weight', suggests a phishing or content-luring tactic. ClamAV detection as 'Pdf.Phishing.Trojan' further supports its malicious nature.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9077

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://crophysi.ru/award?keyword=how+many+calories+should+i+eat+in+a+day+when+trying+to+lose+weight PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4494166/normal_600517bb7616f.pdfIn PDF document text
    • http://axecheat7.xyz/biragefipafavuvide37hnj.pdfIn PDF document text
    • http://findssldz.xyz/438262592409ed2v.pdfIn PDF document text
    • https://cdn.sqhk.co/leloxoreje/UhiuVgj/blockchain_penny_stocks_2020.pdfIn PDF document text
    • http://lodomujimujug.mywebcommunity.org/tutipak.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367914/normal_602ff3b4bc60d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4500670/normal_60386a91bea9e.pdfIn PDF document text
    • https://cdn.sqhk.co/tijanukubo/jfQjigh/bejanimuwukureliga.pdfIn PDF document text
    • http://vezdesami.ru/nopakuvegotovupufukazzecz.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380876/normal_6011082b46166.pdfIn PDF document text
    • http://detonic-romania.website/mudunajtxvmn.pdfIn PDF document text
    • http://big-ita.space/10092049816zcc7x.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4454691/normal_60001337798eb.pdfIn PDF document text
    • http://povulofi.mywebcommunity.org/re_zero_light_novel_english_translation.pdfIn PDF document text
    • http://vekvelo.ru/logurolikipafobonomidoxchp6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4485301/normal_5ffb8650a72d2.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450434/normal_5ff54a7a5eae9.pdfIn PDF document text
    • http://mgacessoria.online/52442569152dzgzx.pdfIn PDF document text
    • http://lg-copyright.com/togudefixaxexv82jx.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403539/normal_5fe6d8d5954de.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4446263/normal_5fcd7a875de2e.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://xologikaju.atwebpages.com/bissell_proheat_plus_no_suction.pdfIn PDF document text
    • http://penanaras.myartsonline.com/87677722296.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_off00011313.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11313 5508 bytes
SHA-256: 46b12d822ff8453cfac093d4d921818298d6bc9f593e9d064ec74e349355ab65

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