Malicious PDF — malware analysis report

Static analysis result for SHA-256 7ddac1f0604a6e0b…

MALICIOUS

PDF

77.6 KB Created: 2021-09-04 23:27:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-14
MD5: 262d566928207eda2f80bb793b762758 SHA-1: 7494bf1a68df03e8013fce34c826fc4be399fefb SHA-256: 7ddac1f0604a6e0b7cfe624713c6a3d951c8ad79eac05bf8c79b538d97133080
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains numerous embedded URLs pointing to various websites, many of which appear to be compromised CMS uploads. This structure suggests the document is designed to lure users to external sites, likely for phishing or to download further malicious content. The ClamAV detection as 'Pdf.Phishing.Trojan' strongly supports this malicious intent.

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 https://philabc.ru/uplcv?utm_term=how+to+manually+factory+reset+iphone+se PDF link annotation
    • https://growlocals.com/wp-content/plugins/super-forms/uploads/php/files/1fc9e9b9bc4e72492e555fcd1cc4d17a/82698056194.pdfIn PDF document text
    • http://veronicanealhome.com/wp-content/plugins/formcraft/file-upload/server/content/files/2/160ac692f8416c---94614844159.pdfIn PDF document text
    • http://banghetretruc.com/media/ftp/file/neruxajedikomadajibux.pdfIn PDF document text
    • https://ienter.bg/files/67955549501.pdfIn PDF document text
    • https://beautifullifeuk.com/wp-content/plugins/super-forms/uploads/php/files/8ca325fb6cfed8e0c774e81fa07bd783/jujuwijogakeweramirogog.pdfIn PDF document text
    • http://mg001.cn/upload_fck/file/2021-5-19/20210519002645405820.pdfIn PDF document text
    • http://arch-teh.com/pic/userfile/15442022814.pdfIn PDF document text
    • https://www.reliancecareuk.com/wp-content/plugins/super-forms/uploads/php/files/4852df47e5c9db244358ecc01aeba347/tulexaxifizifetigamiroxov.pdfIn PDF document text
    • https://medok18.ru/wp-content/plugins/super-forms/uploads/php/files/2247fc500e53984c4b0873df52c2cdfb/wuwonerix.pdfIn PDF document text
    • http://friluftsgruppen.se/wp-content/plugins/formcraft/file-upload/server/content/files/160ae65ca309af---55150717571.pdfIn PDF document text
    • https://isleo.com/i_photos/file/73389626648.pdfIn PDF document text
    • http://soyaksiesta3.com/userfiles/file/64487650474.pdfIn PDF document text
    • https://www.americansummercamps.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d29727e61f---99820505420.pdfIn PDF document text
    • https://macleanpinesdrivingschool.com.au/wp-content/plugins/super-forms/uploads/php/files/7a12cff66d23dfadf1481ad0f001be3d/8367851175.pdfIn PDF document text
    • http://localhomesales.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160e6b21af0529---28556288005.pdfIn PDF document text
    • https://jjmassociates.com/wp-content/plugins/super-forms/uploads/php/files/a112d6c0b9ff6d6287c225f411f502d4/77801463552.pdfIn PDF document text
    • https://elsa-daulte.com/ckfinder/userfiles/files/44128170529.pdfIn PDF document text
    • https://www.mercedesbenzofaustinservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c0345c85055---12534710682.pdfIn PDF document text
    • https://olmitek.by/wp-content/plugins/super-forms/uploads/php/files/o2bg5tp6c98ijllusa9i3ico65/85414536499.pdfIn PDF document text
    • https://aventura-agence.lu/userfiles/files/98256896933.pdfIn PDF document text
    • https://master.plus/wp-content/plugins/super-forms/uploads/php/files/ec880db0990fd330430f74acd4704077/jomede.pdfIn PDF document text
    • https://diedacorporation.net/freesiafiles/file/17252321982.pdfIn PDF document text
    • http://kondicionery-ivanteevka.ru/upload_picture/file/sudej.pdfIn PDF document text
    • https://facades-et-traditions.com/actualites/file/vumotu.pdfIn PDF document text
    • http://auroraenergyproject.it/userfiles/files/71158911086.pdfIn PDF document text
    • 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_off0000df26.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF26 11036 bytes
SHA-256: c92e040b7ef6b6aae94ee3add8838c7409988bd52d899155a744c72336668f1d
font_01_sfnt_off0000f8b0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF8B0 17424 bytes
SHA-256: a4286da43508bd4cd4c7540c3eeb53639f4bb865635c5d378a6ff39c1a3799fb