Malicious PDF — malware analysis report

Static analysis result for SHA-256 bab5a2e8be94b57a…

MALICIOUS

PDF

74.8 KB Created: 2021-06-29 21:49:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-27
MD5: d77202e041a1df71ff5d9b250b6fb75d SHA-1: a56f00430d058f771327abfed5873de938128ebe SHA-256: bab5a2e8be94b57abd712d8665535b8e0988cd03c4ae54763a71709fa464bff0
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous embedded URLs, many of which point to compromised WordPress sites or disposable hosting, suggesting a link farm designed to distribute malicious content or phish users. ClamAV detection as 'Pdf.Phishing.Trojan' further supports a malicious classification. No scripts were extracted, but the structure indicates a phishing or redirection attempt.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4750

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 http://gernano.eu/gfx/userfiles/files/kapaborezonegapitile.pdf In PDF document text
    • http://standartbio.com/fckfiles/file/58738560243.pdfIn PDF document text
    • https://monacollection.ua/wp-content/plugins/super-forms/uploads/php/files/647e536b86ff90760a05934176b0a424/muwimuxuxi.pdfIn PDF document text
    • https://nnt52.ru/userfiles/file/gizagumalomatepub.pdfIn PDF document text
    • http://elitvorota.ru/f/file/74102679131.pdfIn PDF document text
    • https://anukulagrotech.com/userfiles/file/30135201560.pdfIn PDF document text
    • http://springswellness.net/wp-content/plugins/formcraft/file-upload/server/content/files/160ceb26d66a34---vifupuda.pdfIn PDF document text
    • http://waterreducer.cn/d/files/53361093084.pdfIn PDF document text
    • http://zrdb-drogbud.pl/Upload/file/fapujemafiziwa.pdfIn PDF document text
    • https://miguktour.com/FileData/ckfinder/files/20210629_E4875E62B9367DBD.pdfIn PDF document text
    • http://www.investing-in-women.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607285d83daad---74650276644.pdfIn PDF document text
    • http://totaleclipsenv.com/wp-content/plugins/formcraft/file-upload/server/content/files/16087746ad23bd---12463261336.pdfIn PDF document text
    • http://agiusfuneraldirectors.com/files/file/71418482564.pdfIn PDF document text
    • https://elitestrategyglobal.com/wp-content/plugins/super-forms/uploads/php/files/903cd269d982fc601af970eb989c9886/kojugi.pdfIn PDF document text
    • https://www.lenoir-elec.com/wp-content/plugins/super-forms/uploads/php/files/nc0flilet96627v74m7s8n4ku2/46033411544.pdfIn PDF document text
    • https://chrmglobal.com/userfiles/file/40262639348.pdfIn PDF document text
    • http://hndgyl.com/v15/Upload/file/2021612143527135.pdfIn PDF document text
    • https://ltgtrends.com/wp-content/plugins/super-forms/uploads/php/files/f5b1a4a04c5d162beef159bfd025e597/67461005959.pdfIn PDF document text
    • http://www.webtony.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160d20b00c9deb---25206765235.pdfIn PDF document text
    • https://www.diktu.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609b2aec4368e---sibebubijexinomefukaz.pdfIn PDF document text
    • https://robertmatzuzi-massagetherapist.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160844bd223826---gepogetemalasu.pdfIn PDF document text
    • http://www.europesolidaire.eu/userfiles/files/nugalukaxagologokovam.pdfIn PDF document text
    • http://www.fliesen-brill.de/wp-content/plugins/formcraft/file-upload/server/content/files/160aa9c5a15043---puwusadaruku.pdfIn PDF document text
    • https://emmaushuis.org/pages/6352539313.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/DOqCt-cVA4I/uplcv?utm_term=tdc+specialty+underwritersPDF link annotation
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d364.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD364 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000eb76.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB76 17092 bytes
SHA-256: acb60d7a3df38bd589b785ece980ffd3bc819ebe7cb2c98b287747f72bfc5297

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