Malicious PDF — malware analysis report

Static analysis result for SHA-256 ab51e68269dca024…

MALICIOUS

PDF

62.3 KB Created: 2021-06-21 15:20:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b83522c40b4cf29b141b90612675110c SHA-1: 9c48020de57c12d5274057ba9d531a294964eeea SHA-256: ab51e68269dca024d80f2423ed9a56b85c8f0b7f8b132f4944bccfbb1327f4e2
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document is classified as malicious, likely a phishing or trojan delivery mechanism. It contains numerous links to external URLs, many hosted on compromised WordPress sites, suggesting an attempt to redirect users to malicious content or download further payloads. The document body's content, while heavily obfuscated, appears to be a lure related to movie streaming, aiming to trick users into clicking the embedded links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8124

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://pixomot.ru/uplcv?utm_term=mulan+2020+watch+online+123movies
    • https://sk-developers.com/wp-content/plugins/formcraft/file-upload/server/content/files/160866aa754a0e---lefonovigupujonewerokogam.pdf
    • https://cgeminfos.ma/upload/file/neralozurafomagoturosewo.pdf
    • http://webscape.co.bw/wp-content/plugins/formcraft/file-upload/server/content/files/16077e16dce426---22068843238.pdf
    • https://www.sblending.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16086d979cb6d3---42273017553.pdf
    • https://xn--1--8kcai1ck2bs.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/033d5142877eedd48257a9593ac9b6b8/94074015751.pdf
    • http://terezmisszio.eu/files/file/92117594915.pdf
    • http://simonhoirup.dk/userfiles/file/11607164320.pdf
    • http://tubietelbar.hu/uploadfile/giwol.pdf
    • http://claudiodauelsberg.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607540eea913e---dologofaduni.pdf
    • https://wills.sg/wp-content/plugins/super-forms/uploads/php/files/1817d3e774028a4fe4588905ee8680c5/tubixez.pdf
    • https://www.skyline-recruiting.com/wp-content/plugins/super-forms/uploads/php/files/e7018bd04e49f18cb229173554d020c8/fupowegidisesaxiwo.pdf
    • http://shinserviceodi.ru/wp-content/plugins/super-forms/uploads/php/files/339c45121aced3e3e301918245e65904/tokom.pdf
    • http://freeski.hu/freeski/file/sepuzalojelu.pdf
    • http://xn--clinicaquirogavilario-vbc.com/wp-content/plugins/super-forms/uploads/php/files/6rasg2ruquu82r9ri1ios0lhh2/likaj.pdf
    • https://flylights.pl/wp-content/plugins/super-forms/uploads/php/files/efo8793s7hvo9a4neq30mg3o48/20842511296.pdf
    • https://www.endthestigmacounselling.com/wp-content/plugins/super-forms/uploads/php/files/86g2v071ckod6jgq59tirg84vp/rizituduzumavewewatolu.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://scripts.sil.org/OFL

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e46f.bin
51fa2fc4c762dabdaee90223a0c306a9fed4cf8197849ce8a26337c0ce522b03		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE46F 5592 bytes

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