Malicious PDF — malware analysis report

Static analysis result for SHA-256 feec7cd03f211444…

MALICIOUS

PDF

150.2 KB Created: 2021-06-29 23:27:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-12
MD5: aaa03be3ad6c7d15fc2089d17b51317c SHA-1: 47570db0958c3c3c1cbd7644bf59c7270adb4cd1 SHA-256: feec7cd03f2114440095c8d8a136307dabdd34d66c16da82e09025387a706110
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains numerous embedded URLs pointing to compromised WordPress sites, indicating a link farm designed to redirect users. The ClamAV detection as 'Pdf.Phishing.Trojan' strongly suggests a malicious intent, likely phishing or malware distribution through these links. No scripts were extracted, and the document body was unreadable binary data.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.3078

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://laborke.ru/uplcv?utm_term=all+his+promises+are+yes+and+amen PDF link annotation
    • http://matrixuniverzum.eu/wp-content/plugins/formcraft/file-upload/server/content/files/160b46c4339a21---60775410129.pdfIn PDF document text
    • https://www.kbstephens.com/wp-content/plugins/super-forms/uploads/php/files/6c2250c38d7128c8dcf74c9621eadd46/gunutodavagevuzawugo.pdfIn PDF document text
    • http://cnhhgj.com/upfiles/userfiles/file/94555729666.pdfIn PDF document text
    • https://www.higher-energy-trampolineclub.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a27453d51a9---83766293747.pdfIn PDF document text
    • http://objetivovender.com/wp-content/plugins/formcraft/file-upload/server/content/files/16090803601916---xozededopasiwukalifubonut.pdfIn PDF document text
    • https://www.modianodesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a5fa294e6bd---7662583790.pdfIn PDF document text
    • https://www.karenlovelee.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a9366f90e8f---rarixigizopufesiz.pdfIn PDF document text
    • https://www.dartmusicfestival.co.uk/wp-content/plugins/super-forms/uploads/php/files/5965e8e21bd6fa2fdd7df6fda930cc7c/legatagok.pdfIn PDF document text
    • https://www.asahinadigital.com/wp-content/plugins/super-forms/uploads/php/files/ldkoggj1nj0al9f738ulmrtsfb/47678528685.pdfIn PDF document text
    • https://www.mclarenpress.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609e12b2cc607---62460502499.pdfIn PDF document text
    • http://entone.es/wp-content/plugins/super-forms/uploads/php/files/043b696805a0a00f5f0bb43fe4407d74/wetesuvifuxogutetakep.pdfIn PDF document text
    • http://chanakol.com/ckfinder/userfiles/files/13205289186.pdfIn PDF document text
    • http://terapeutickemasaze.eu/wp-content/plugins/formcraft/file-upload/server/content/files/16083209d6b391---4946146731.pdfIn PDF document text
    • https://hylyt.co/wp-content/plugins/super-forms/uploads/php/files/bad778efd38dd57b1644a2a25d7e6bc1/43429131163.pdfIn PDF document text
    • http://optimus.org.au/wp-content/plugins/formcraft/file-upload/server/content/files/160b8baf99897b---92301277114.pdfIn PDF document text
    • http://www.auditsi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609984d2d18a6---96736097614.pdfIn PDF document text
    • http://classicalgardenstatues.com/uplds/file/24330521657.pdfIn PDF document text
    • http://jameshamiltondds.com/clients/6/6c/6cc67b5d90347a591bf4e9c0b97a5143/File/worafifizujifimakas.pdfIn PDF document text
    • https://jennysbooks.com/wp-content/plugins/super-forms/uploads/php/files/7fb966e97e2ade7d810f385b0d2f87d2/22068275463.pdfIn PDF document text
    • http://norilskgu.ru/userfiles/file/fowojab.pdfIn PDF document text
    • https://www.tctnanotech.com/wp-content/plugins/super-forms/uploads/php/files/4fe69ed81c80f37f31c7f415764d5b5a/marovusuwa.pdfIn PDF document text
    • http://rallyteamwalraven.nl/file/32516438973.pdfIn PDF document text
    • http://localhomesales.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1607e659cbd93c---52984710092.pdfIn PDF document text
    • https://www.carlosfunes.es/wp-content/plugins/formcraft/file-upload/server/content/files/16096845e9533d---bebawilusovad.pdfIn PDF document text
    • http://www.idenet.net/wp-content/plugins/formcraft/file-upload/server/content/files/1607bbe8a1170e---mekap.pdfIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000214d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x214D0 10656 bytes
SHA-256: d87fa36f95ce09ea59ea4deb977fa20e3f8cca35a64e18e520085ae900b7454e
font_01_sfnt_off00022cfb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x22CFB 16680 bytes
SHA-256: 260b1ef609bb7d14246a0167a2a990cbe6871383563ae80893bde4ac68f42e19
font_02_sfnt_off0002448c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2448C 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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