Malicious PDF — malware analysis report

Static analysis result for SHA-256 2891c742b169b2c4…

MALICIOUS

PDF

76.3 KB Created: 2021-03-15 11:59:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 94b4eff3c0b7cff9686ce20bf3571d4b SHA-1: 0f7b4750ede4c0bbf69583bd18e876a7b9649621 SHA-256: 2891c742b169b2c437d930bc4633d008c542d2f55c6fc800b38fb6af9f2124d0
154 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 0.9706

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 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.
  • 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=aditya+hridayam+gujarati+pdf PDF link annotation
    • https://dojudetokin.weebly.com/uploads/1/3/4/6/134613144/xibifiboxomizu.pdfIn PDF document text
    • https://cdn.sqhk.co/lisupixiwe/zhifhbe/papa_s_freezeria_to_go_poki.pdfIn PDF document text
    • https://sukorason.weebly.com/uploads/1/3/4/5/134578332/jadubokosivax-pujizoxatex-juxobedixuxusi.pdfIn PDF document text
    • https://tamoniwezetiro.weebly.com/uploads/1/3/5/9/135961995/fa6a34e494ba.pdfIn PDF document text
    • http://canlisohbetim.net/45126154959u5twm.pdfIn PDF document text
    • https://sodujamewo.weebly.com/uploads/1/3/4/7/134750465/1904048.pdfIn PDF document text
    • https://cdn.sqhk.co/sirepajaku/ihbggja/20250750099.pdfIn PDF document text
    • http://d-youtube.com/how_much_do_long_haired_dachshund_puppies_cost_new_jerseyy67nx.pdfIn PDF document text
    • https://sobasoje.weebly.com/uploads/1/3/2/6/132695832/4956640.pdfIn PDF document text
    • https://fofupapezu.weebly.com/uploads/1/3/4/3/134356394/6957979.pdfIn PDF document text
    • https://tenosufude.weebly.com/uploads/1/3/1/4/131455069/cbf0b80.pdfIn PDF document text
    • http://dihtyar.online/because_i_could_not_stop_for_death_imagery_analysisj90e4.pdfIn PDF document text
    • https://xixefofitajeres.weebly.com/uploads/1/3/3/9/133999179/c2eb4ad02b2.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/7b64f5af-4e44-4325-967e-925e3523be3e/who_wrote_the_emerald_tablets_of_thoth.pdfIn PDF document text
    • https://s3.amazonaws.com/paxuvagal/c_more_play_app.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/941cd5d7-d81c-4ffd-be3a-3a06c3eb700f/rinnai_gas_water_heater_specifications.pdfIn PDF document text
    • https://s3.amazonaws.com/kufazete/altered_forme_giratina_weather_boost.pdfIn PDF document text
    • https://s3.amazonaws.com/fasomusogapovi/conditional_probability_table_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/fejififimaketo/6545479742.pdfIn PDF document text
    • https://s3.amazonaws.com/povelenavuviw/lawose.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/86c3168b-bdd9-40d2-84c6-81e70764a8bf/84091810153.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c20a60c6-d69b-4565-ad56-195a0a9e700f/migelanobabeku.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_off0001256d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1256D 4960 bytes
SHA-256: fc1951a6917da7c3eb3f5beb452dab56c88b06e3bf4b345eab66bff8117bd5ff

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