Malicious PDF — malware analysis report

Static analysis result for SHA-256 3cf48cd1860f7cdc…

MALICIOUS

PDF

73.4 KB Created: 2021-06-23 00:14:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 4088cbcf9a14de4b1d0f58b15f9e9a93 SHA-1: 7e1951c55a66567bb0dacf925e560ae6cdd9a391 SHA-256: 3cf48cd1860f7cdcb20a2af30ba1c8afdc413e8fc8e5a22cc7fe0af14ef0c59b
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. It contains numerous links to external websites, many hosted on compromised WordPress installations, suggesting it functions as a link farm or phishing lure. The document body, though heavily obfuscated, contains text related to 'Quran sharif para 27 pdf', indicating a potential lure to attract users interested in religious content. No scripts were extracted from this sample, but the presence of multiple compromised URLs points towards an attempt to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7629

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://philabc.ru/uplcv?utm_term=quran+sharif+para+27+pdf PDF link annotation
    • https://www.sanier.pl/wp-content/plugins/super-forms/uploads/php/files/oq40pmvm84ua5lgv3tom1m602q/lotivivedekuralazaja.pdfIn PDF document text
    • http://www.yourhealthyourchoice.org/wp-content/plugins/formcraft/file-upload/server/content/files/1609f49b80ea18---venubukafafunuk.pdfIn PDF document text
    • http://anhuifan.com/upload_fck/file/2021-5-3/20210503015635148897.pdfIn PDF document text
    • http://ahchala.com/img/file/ladamomurawubugoluvagas.pdfIn PDF document text
    • https://www.charroninc.com/wp-content/plugins/super-forms/uploads/php/files/6c1ff1e05f405d7c9b283bcf4465da0e/wizuvapawuzixikejisija.pdfIn PDF document text
    • https://khanikango.in/file/fufuzesibinisofi.pdfIn PDF document text
    • https://janeunchained.com/wp-content/plugins/super-forms/uploads/php/files/69jgrrngjfmpt7c44min2o8ler/83373772207.pdfIn PDF document text
    • https://123kozijnofferte.nl/wp-content/plugins/super-forms/uploads/php/files/as33fpa64iudjthbra8s3tlpd3/69456453807.pdfIn PDF document text
    • https://petroblend.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b78a905005e---71686005547.pdfIn PDF document text
    • http://www.marcado.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1609468f92cb3e---59331902495.pdfIn PDF document text
    • http://www.nbrownies.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160ba1cd149c52---11991366621.pdfIn PDF document text
    • http://bjallstar.com/upload/file/82269970155.pdfIn PDF document text
    • http://www.christinemartin.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1609120cfd1194---mewiwimuwozemuxadib.pdfIn PDF document text
    • https://benchmarktransitions.com/wp-content/plugins/formcraft/file-upload/server/content/files/16071ca178f3c6---27322240158.pdfIn PDF document text
    • http://aaaexpressheating.com/userfiles/file/30261145271.pdfIn PDF document text
    • https://www.hungryalex.com/wp-content/plugins/super-forms/uploads/php/files/282ipkrifladal98fsla32kkmj/94567473816.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off0000fd5e.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0xFD5E 24673 bytes
SHA-256: b139e4c30991e680fb024230b5acdb7ccc79d545977ec1b0b1ab454de2de1aee
font_00_sfnt_off0000cc36.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCC36 4944 bytes
SHA-256: 95e7a95aa6e4aa4922e0439fefa90d5b181716d9d24b3c1f033b9276d09f61c1
font_01_sfnt_off0000dcec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCEC 9420 bytes
SHA-256: a2ea0f5a7fc6bcb43dd9fb6dfec6d1581e6680f1d8e7f70962ebfcf9eec989c0

Open this report in the interactive analyzer, or submit your own file for analysis.