Malicious PDF — malware analysis report

Static analysis result for SHA-256 02970c4b24865ed5…

MALICIOUS

PDF

77.6 KB Created: 2022-04-25 12:35:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-08
MD5: 58c0aedc0640b87d8724d357b9d1f5f0 SHA-1: d50e387cbc22b2b80ac9b388943a0c71a4e7d8cf SHA-256: 02970c4b24865ed57110305f3a62e71084a2097e49bd27bf5e9044713bc11626
226 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was flagged by multiple heuristics as malicious, including a critical ClamAV detection and an ML classifier indicating a high probability of maliciousness. It contains a large number of external links, many hosted on disposable domains, suggesting a link farm or phishing lure. The presence of 'Travel-support phone-number stuffing scam' heuristics indicates a potential social engineering attempt to trick users into calling fraudulent support lines. The embedded URLs are likely used to redirect users to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9932

Heuristics 7

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Travel-support phone-number stuffing scam high SE_TRAVEL_SUPPORT_PHONE_SCAM
    Document repeats phone numbers in airline/travel/refund/support language, often across multiple regional phrasings. This matches SEO/support-scam PDFs that impersonate airlines or travel brands and route users to attacker-controlled call centers rather than a normal travel document.
  • 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://wirut.co.za/YmrXLWy8?keyword=dallas%20texas%20sales%20tax%20rate%202019 PDF link annotation
    • https://rosaguvedofim.weebly.com/uploads/1/3/4/3/134352906/6874217.pdfIn PDF document text
    • http://ulrike-mayer.de/userfiles/files/wonewediweduti.pdfIn PDF document text
    • https://puxipevabama.weebly.com/uploads/1/3/4/3/134308905/xebaja.pdfIn PDF document text
    • https://diruwogedow.weebly.com/uploads/1/3/1/3/131382439/9302330.pdfIn PDF document text
    • https://twojeloty.pl/admin/kcfinder/upload/files/85850313411.pdfIn PDF document text
    • https://wenuzivubog.weebly.com/uploads/1/3/5/3/135392435/birovuduxakaxureg.pdfIn PDF document text
    • https://debozolajaxagaf.weebly.com/uploads/1/3/1/0/131070846/zosavekumekonulef.pdfIn PDF document text
    • http://teplolux72.ru/upload/file/34518028580.pdfIn PDF document text
    • https://tajezutudod.weebly.com/uploads/1/3/1/3/131398094/wozemibuxidujinawove.pdfIn PDF document text
    • http://shinyoungvalve.com/userData/board/file/vabevegenimiliki.pdfIn PDF document text
    • https://ccskin.com/geektic/files/zarifupezeverafaze.pdfIn PDF document text
    • https://tinhhoaxanh.vn/userfiles/file/89793267566.pdfIn PDF document text
    • http://unitedpestmanagement.com/userfiles/file/lubidalumipuradejo.pdfIn PDF document text
    • https://jeludumekidi.weebly.com/uploads/1/3/2/7/132740852/8d19777cbc787.pdfIn PDF document text
    • https://xumotisububilup.weebly.com/uploads/1/3/4/5/134591263/9870c3e9cb9.pdfIn PDF document text
    • https://nizesuvijeva.weebly.com/uploads/1/3/1/6/131607023/dunivor_teluzaja_vinujunepuf_nurojude.pdfIn PDF document text
    • https://schreinerheusi.de/wp-content/plugins/formcraft/file-upload/server/content/files/162257af55d740---tenovulamamarimowaj.pdfIn PDF document text
    • https://waxipirugetaweg.weebly.com/uploads/1/3/7/5/137508402/sixufogudogago.pdfIn PDF document text
    • http://professional-tuner.at/uploaded/file/kuxulukiwumupabegixavo.pdfIn PDF document text
    • http://hide-bo.com/img/tmp/file/5002646744.pdfIn PDF document text
    • http://criollo-cocoa.com/userfiles/file/28959433832.pdfIn PDF document text
    • https://xiwajuropoji.weebly.com/uploads/1/3/4/3/134371127/9606902.pdfIn PDF document text
    • https://vitekasawo.weebly.com/uploads/1/3/4/4/134456264/dafama.pdfIn PDF document text
    • https://sumangold.net.vn/wp-content/plugins/super-forms/uploads/php/files/rn1c33q9tq9e29r84qp89371bj/golibunajejerulalileziku.pdfIn PDF document text
    • http://evevoyance.fr/adh/.-/file/xabukil.pdfIn PDF document text
    • https://metazavog.weebly.com/uploads/1/3/4/6/134650383/47e14c5970.pdfIn PDF document text
    • https://lazerom.pro/media/file/bomowobetotutidolalodaput.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://dejavu.sourceforge.netIn extracted file (font_00_sfnt_off0000cbe8.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000cbe8.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cbe8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCBE8 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000e3fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE3FA 16892 bytes
SHA-256: b44ef47968fa841059a57fd4706218ab2fc241e87368a88cec2e764aeef9a0a8
font_02_sfnt_off0001102a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1102A 10352 bytes
SHA-256: 7b4ed62d8a1ca2cf3ba667f45276438ba92486b72b43458a68b0120b07e10fc0