Malicious PDF — malware analysis report

Static analysis result for SHA-256 b0e156f44780736c…

MALICIOUS

PDF

64.0 KB Created: 2021-06-12 13:22:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-07
MD5: ec0efe0d3972b36d58f3c2207baa2b58 SHA-1: 5cfed6b3ecdd07a0ff1a16037b9cda0ab4d5b8fe SHA-256: b0e156f44780736c1dac50ef12c96c6ac2d0685457d0a8639ccfc4dea181cc62
154 Risk Score

Malware Insights

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

This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous links to external websites, many hosted on compromised WordPress installations, suggesting a phishing or malware distribution campaign. The presence of 'utm_term' parameters in some URLs further supports a campaign-driven approach to lure victims.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8600

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
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://garglob.ru/uplcv?utm_term=sonic+galactic+apk PDF link annotation
    • https://funkydrop.shop/wp-content/plugins/super-forms/uploads/php/files/b3f80b853bf8790d56ebc9869a90e3b8/guzabujadadizosugisebuz.pdfIn PDF document text
    • https://tecsal.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160b2d6f61a1a2---48027042477.pdfIn PDF document text
    • https://www.lindopoint.it/wp-content/plugins/super-forms/uploads/php/files/29d7ee18659c36ce891306b8e0ca385d/4243566380.pdfIn PDF document text
    • https://nowbali.co.id/wp-content/plugins/formcraft/file-upload/server/content/files/1609eb8e65cebb---85964972851.pdfIn PDF document text
    • https://kham.vn/userfiles/file/vexajagajuwodasitosoru.pdfIn PDF document text
    • https://kassa-evotor.ru/wp-content/plugins/super-forms/uploads/php/files/29tl91v6tt62qiqapbmgticrej/wopunimasik.pdfIn PDF document text
    • https://t4g.nasscomfoundation.org/wp-content/plugins/super-forms/uploads/php/files/kinen4k3hf3ng114ckdhq2r313/wawazomowixim.pdfIn PDF document text
    • https://brickbodysupplements.com/newerac2c/userfiles/file/mepadepubomo.pdfIn PDF document text
    • https://dedywiredja.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c194275c8f1---17990144195.pdfIn PDF document text
    • https://bursac.net/userfiles/file/pisamefaturemepuzufog.pdfIn PDF document text
    • https://www.advids.io/wp-content/plugins/formcraft/file-upload/server/content/files/1609baa0327c4c---roxagukumofafugajigirowud.pdfIn PDF document text
    • http://sazjah.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607c5d8a1043b---rotagefamixugijafe.pdfIn PDF document text
    • http://ixtvs.de/_upload_bilder/_filemanager/file/padob.pdfIn PDF document text
    • http://emirates-offshore.com/uploads/image/file/79456270519.pdfIn PDF document text
    • https://engineeredrepinc.com/wp-content/plugins/super-forms/uploads/php/files/8a273d8dc4e5d90825c99ce6c82c8b25/xokanax.pdfIn PDF document text
    • https://djennebeads.com/nbloom/fckuploads/file/jiledisewabisato.pdfIn PDF document text
    • http://www.hkwebdesign.com.hk/wp-content/plugins/formcraft/file-upload/server/content/files/1606d9ac785909---balamejaxakuz.pdfIn PDF document text
    • https://www.actionconstructionjax.com/wp-content/plugins/super-forms/uploads/php/files/80fd7ef0948a4edab48e628a831b3aa2/rupez.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000edd3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDD3 4996 bytes
SHA-256: 069b4150a14ec332337749bda6f80efe229f06ecd62615a567f03e19970d7166

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