Malicious PDF — malware analysis report

Static analysis result for SHA-256 09abde2fa2bb2ed0…

MALICIOUS

PDF

70.3 KB Created: 2021-05-19 00:47:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: fd8ce519e94fdc53f381b6b9b6a9f280 SHA-1: b3f1a9cd042fd7c88010698f078ba0bb7a241e69 SHA-256: 09abde2fa2bb2ed0638864a4c69a3ff4e607c86c18cba31a9561423da8baa8d1
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains numerous links to compromised WordPress sites, indicating it functions as a link farm. The ClamAV detection and ML classifier strongly suggest malicious intent, likely phishing or malware delivery. The embedded URLs point to various domains, many of which are associated with compromised CMS uploads, suggesting a coordinated effort to distribute malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8302

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://www.sunarozlem.com.tr/wp-content/plugins/super-forms/uploads/php/files/bi8m935ttpnqp86ale95r907i0/67572873510.pdf
    • http://xn--b1ahhafccpgkb2bxo.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/249c417b208d2a2f0fffeeeada14eb6d/50578142639.pdf
    • https://charqueadaboavista.com.br/wp-content/plugins/super-forms/uploads/php/files/521efa67d24eb9fc2aad8e56820d4557/jofudokemitadedomona.pdf
    • https://remoteworkerclub.com/wp-content/plugins/super-forms/uploads/php/files/ddd6a12173b61e27e82984dd4a388fcb/65147787486.pdf
    • https://www.audioclinica.pt/wp-content/plugins/super-forms/uploads/php/files/qjedgmah08n3q4ti8q156u3kdd/6270638961.pdf
    • https://lasvegasrebath.com/wp-content/plugins/super-forms/uploads/php/files/87031167370f8d697c3ce427c1a2adc0/98992393699.pdf
    • http://baanpowertrain.com/wp-content/plugins/formcraft/file-upload/server/content/files/16093fca6bce3b---51227664023.pdf
    • https://sgdivorcelawyers.com/wp-content/plugins/super-forms/uploads/php/files/fc0f505c0d684b59a1231bdeba44b052/mojirufinilibijejes.pdf
    • http://msci.com.ng/wp-content/plugins/formcraft/file-upload/server/content/files/1609236f5c87c4---tesodusapafalikaratuzot.pdf
    • https://jgmurphy.com/wp-content/plugins/super-forms/uploads/php/files/86dc74602d28efbc254dc6d5fb784635/tafituxas.pdf
    • http://www.neslihanonur.com/wp-content/plugins/super-forms/uploads/php/files/fa7f09b317a855cd9c922e24f6274bf2/jumobezagututalajip.pdf
    • https://howardsteeves.com/wp-content/plugins/super-forms/uploads/php/files/b4e06ea84fc001cb2fe854b43b5ca1b1/womolu.pdf
    • http://festivaldeliteraturadepereira.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608a4886a5b28---pesozeritirorezixuvogod.pdf
    • https://gearforfree.com/wp-content/plugins/super-forms/uploads/php/files/h93nv990smkpvpg232biqii960/xugarat.pdf
    • http://antwerp-rentals.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607499edb9e3c---17424930261.pdf
    • http://ziepniekkalns.lv/wp-content/plugins/formcraft/file-upload/server/content/files/16093b4ea70fae---80933051570.pdf
    • http://trenermichal.pl/wp-content/plugins/formcraft/file-upload/server/content/files/16080abc9a23db---69706335291.pdf
    • https://vizzzio.ru/wp-content/plugins/super-forms/uploads/php/files/b7588e066378d49cb09bffd93c43a351/rafajudazimo.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://feedproxy.google.com/~r/skout/mBVl/~3/YTWXjIUwRh0/uplcv?utm_term=what+does+non+ppr+rankings+mean
    • http://scripts.sil.org/OFL

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010297.bin
7d02268219cfdfad50a5b1259491d5783c22960655a315dac3aa4a4676611049		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10297 5416 bytes

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