Malicious PDF — malware analysis report

Static analysis result for SHA-256 02055b397875777d…

MALICIOUS

PDF

62.3 KB Created: 2021-09-29 14:18:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-21
MD5: f2e64d3608feed7d246e03c91ac81932 SHA-1: bc60f5f1d2c23230eb44e49fb462f4291828a977 SHA-256: 02055b397875777d243888a4b6cd20b2d5662511242c910c392d5cdd9ab1fceb
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and exhibits characteristics of a link farm, with numerous distinct hosts and embedded URLs. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates a high likelihood of malicious intent, likely to direct users to phishing sites or download further malware. No scripts were extracted, but the structure and URL patterns strongly suggest a malicious document.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5428

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://missteenqueenuk.com/userfiles/file/54790384048.pdf In PDF document text
    • https://finestblogger.de/wp-content/plugins/super-forms/uploads/php/files/472gto5o2na5j6mr9kea4akmel/80612231104.pdfIn PDF document text
    • http://cavusofis.com/images_upload/files/55484342877.pdfIn PDF document text
    • http://lngpetro.com/userfiles/file/xigetasesutiguvuwile.pdfIn PDF document text
    • https://biorenta.lt/ckfinder/userfiles/files/betimulapimalapovu.pdfIn PDF document text
    • http://planao.com/ckfinder/userfiles/files/19641174392.pdfIn PDF document text
    • https://hongmao.tw/uploads/files/202109042322099491.pdfIn PDF document text
    • http://sriraghavendratemple.com/ckfinder/userfiles/files/palenanevabaki.pdfIn PDF document text
    • http://dpsszczytno.pl/photo/file/54340850583.pdfIn PDF document text
    • http://sitoad.com/bbqjoekey/files/202109121657193236.pdfIn PDF document text
    • http://islaminkiel.de/webmisr/uploadwebmisr/file/90046752759.pdfIn PDF document text
    • https://zhavezbozi.cz/data/file/vawapi.pdfIn PDF document text
    • http://hanasushichoice.com/uploads/files/89708833208.pdfIn PDF document text
    • http://ricoconsultingattorney.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/81561600133.pdfIn PDF document text
    • http://kingspec.su/wp-content/plugins/super-forms/uploads/php/files/4gsvcr9n1ftusbpdmgk75gmvut/nexizavexevu.pdfIn PDF document text
    • http://www.udelimpa.es/ckfinder/userfiles/files/81832132110.pdfIn PDF document text
    • http://vln.nl/files/file/waxomovunegutigu.pdfIn PDF document text
    • http://vesimport.ru/userfiles/file/24712097869.pdfIn PDF document text
    • https://atrax.hr/files/defifipojuvarujo.pdfIn PDF document text
    • http://omegapizza.net/uploads/files/rixesege.pdfIn PDF document text
    • http://tubemakingmachine.com/uploadfile/files/66448912070.pdfIn PDF document text
    • https://omprintandpack.com/userfiles/file/28196863730.pdfIn PDF document text
    • http://jualumnitoronto.com/editor/uploadfiles/50171625810.pdfIn PDF document text
    • https://gaadalagi.com/contents/files/90029763688.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/A3Ryygt5BCM/uplcv?utm_term=kissanime+app+androidPDF link annotation
    • 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_off0000b156.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB156 14868 bytes
SHA-256: 6fbcb46b55e79584d526a5372693204f708d708536271bd70f04d85b9a7f2653
font_01_sfnt_off0000d682.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD682 10400 bytes
SHA-256: 59dc116b50913e5f8947862b3079237792f9f2f965104fde9aef441088462c4f

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