Malicious PDF — malware analysis report

Static analysis result for SHA-256 32bcd1f8d2603bd7…

MALICIOUS

PDF

71.2 KB Created: 2021-09-08 11:22:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-12
MD5: bb60c7dd1963439054512ea25327b8a2 SHA-1: 3db8785f2a8f8ac502b68893b251910a07c6f36e SHA-256: 32bcd1f8d2603bd7ebbfea2db45b8c965b6101c17c6f2bdc5b5f3d373dac1e64
204 Risk Score

Malware Insights

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

The PDF contains embedded JavaScript and numerous links pointing to compromised WordPress sites and disposable domains, indicating a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly suggest malicious intent, likely to redirect users to malicious content or download further payloads. The presence of embedded JavaScript (T1059.007) and the overall structure point towards exploitation for client execution (T1203).

Machine Learning

  • Nyx PDF Classifier malicious score 0.9956

Heuristics 8

  • 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 to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • 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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://gservicepz.com/wp-content/plugins/super-forms/uploads/php/files/13c86ded028810745838f179ca5e6634/xafejubivotokal.pdf In PDF document text
    • http://willtorock.com/wp-content/plugins/formcraft/file-upload/server/content/files/160afcd32eec4a---14023605926.pdfIn PDF document text
    • http://villaturri.it/wp-content/plugins/formcraft/file-upload/server/content/files/160967a9bd31a6---30765503602.pdfIn PDF document text
    • https://www.phoenixdentalacademy.co.uk/wp-content/plugins/super-forms/uploads/php/files/a1d95ea000f7f65832f1e18bf4a8f566/jonemo.pdfIn PDF document text
    • http://www2.grupoksl.com.br/js/ckfinder/userfiles/files/415136885.pdfIn PDF document text
    • https://thepetrichortouch.com/wp-content/plugins/super-forms/uploads/php/files/s9p6gr69qr8971pqoili18v0je/morisasivipujibekuj.pdfIn PDF document text
    • http://panhongbo.com/ckfinder/userfiles/site_eachfun_com/files/5477494249.pdfIn PDF document text
    • http://vinhthuan.vn/upload/files/mupen.pdfIn PDF document text
    • http://logistra.fr/ressource/site-image/files/7738842461.pdfIn PDF document text
    • https://thic.net/plugin/ce1/ckfinder/userfiles/files/bumomoxifesubebuzalowug.pdfIn PDF document text
    • https://maloneslandscape.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a5dbc5c22d4---rurekamonev.pdfIn PDF document text
    • https://bangprice.combangprice.com/beta/cms_image/file/71996949875.pdfIn PDF document text
    • https://estigotours.com/wp-content/plugins/super-forms/uploads/php/files/16cdf27f5df258224017d53d93432eea/nuguvegotibeluxezafa.pdfIn PDF document text
    • https://canadianrelocation.net/wp-content/plugins/formcraft/file-upload/server/content/files/1607e82d37fc6b---31372529094.pdfIn PDF document text
    • https://ncfouting.com/wp-content/plugins/formcraft/file-upload/server/content/files/16080656f0f606---76816616591.pdfIn PDF document text
    • http://www.irrv.org/uploads/files/2478909438.pdfIn PDF document text
    • http://1careglobal.com/upload/files/78471253702.pdfIn PDF document text
    • https://psg66.ru/admin/ckfinder/userfiles/files/gabivegusifixu.pdfIn PDF document text
    • https://uaqbakery.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606c8260aec45---lemomegiremutevubexujibi.pdfIn PDF document text
    • http://www.marsagri.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612a712619eff---dafuzapagusiletorimetoj.pdfIn PDF document text
    • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/24gunt6f7ivs4co96pchcpfam7/52966548589.pdfIn PDF document text
    • https://goez3.com/10005001208290177/ckfinder/userfiles/files/70451320494.pdfIn PDF document text
    • https://storage-in-motion.com/wp-content/plugins/formcraft/file-upload/server/content/files/160fbf084cbcfb---23350374994.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/6naE_Nh8_CY/uplcv?utm_term=earthquaker+the+depths+manualPDF link annotation
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In 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_off0000b65b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB65B 16280 bytes
SHA-256: ccc3dda0774d8cfb797b37a51440079e96da82fab966517bd340376e25ea51a5
font_01_sfnt_off0000df33.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF33 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0000f74a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF74A 10764 bytes
SHA-256: 2ab907a40039d739985b9bc439d15be35649baceb3150714e86fe7eae0640c1c

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