Malicious PDF — malware analysis report

Static analysis result for SHA-256 7ee800772833bf8b…

MALICIOUS

PDF

89.7 KB Created: 2021-09-18 17:48:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-26
MD5: 38bd76b13a1d1e6283149e61843e2be2 SHA-1: b466005694fdde110a4c95430d19581597298cbf SHA-256: 7ee800772833bf8bf99dec6e41dca886ebcd8e712080481e19d5e582ffe8a58f
164 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains embedded JavaScript and numerous external URIs, many of which point to compromised WordPress sites or disposable hosting, suggesting a link farm designed to distribute malware. The embedded JavaScript likely facilitates the download or execution of a secondary payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9875

Heuristics 7

  • 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.
  • 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://www.d-table.com/wp-content/plugins/super-forms/uploads/php/files/f561eef030ae5043f53ed5afc62b341d/54962631801.pdf In PDF document text
    • https://civilkontroll.hu/uploads/file/bumogudatilukulafodur.pdfIn PDF document text
    • http://zsdbiopharm.com/upload/files/sixolafizuxiniva.pdfIn PDF document text
    • https://monyetmesum.com/contents/files/sedamumil.pdfIn PDF document text
    • http://ieltsadd.ir/cache/fck_files/file/63778884188.pdfIn PDF document text
    • http://notar-frings.de/userfiles/file/logafolodedawajijosagew.pdfIn PDF document text
    • https://siyata.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/16138ac4556281---17785035297.pdfIn PDF document text
    • https://bbox.ru/images/shared/file/kijijiji.pdfIn PDF document text
    • http://antonio-pelella.eu/userfiles/files/98172091989.pdfIn PDF document text
    • https://zoorichi.com/temp/fckeditor/file/67059993092.pdfIn PDF document text
    • http://ihdbd.org/upload/files/39995988302.pdfIn PDF document text
    • https://all-new-wow.com/upload/files/fikipitukunupezoj.pdfIn PDF document text
    • https://bilbox.es/wp-content/plugins/super-forms/uploads/php/files/dafe2319f7bcc916012dd62ae9d2dbf2/60218628259.pdfIn PDF document text
    • https://hacunamatata.ru/wp-content/plugins/super-forms/uploads/php/files/9298270f50f63ea8919bc7abed51e667/jepomimelisogejerawe.pdfIn PDF document text
    • http://aquaclub.hu/userfiles/file/nasoletidebuterokabu.pdfIn PDF document text
    • https://srldirect.com/ckfinder/userfiles/files/nusodisuka.pdfIn PDF document text
    • http://interiorconsignments.com/media/file/59353892770.pdfIn PDF document text
    • http://carnow.jp/js/upload/files/50049361554.pdfIn PDF document text
    • https://atlasautoglass.com/wp-content/plugins/formcraft/file-upload/server/content/files/16133325fa3e81---4054552734.pdfIn PDF document text
    • http://bsp-oblspl.org/ckfinder/userfiles/files/16124178680.pdfIn PDF document text
    • http://wsp.pl/userfiles/file/tovuwedepetonikamun.pdfIn PDF document text
    • https://siltri.com/fck_upload/file/razazavetu.pdfIn PDF document text
    • https://swagath.co/new/ckfinder/userfiles/files/67243044529.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1xuhb7AK25c/uplcv?utm_term=download+red+dead+redemption+2+for+androidPDF 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 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ca64.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCA64 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000e276.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE276 24864 bytes
SHA-256: 56a736f0f1800d3b198797f3e91be54dc6b2482331525e5bf01f5d18821efa67
font_02_sfnt_off000120e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x120E9 1820 bytes
SHA-256: ef4c56b83544acc0eae329b123dcb13384a4443b8ee25b6b011fcec9f25c534c
font_03_sfnt_off00012974.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12974 10696 bytes
SHA-256: 082de17b501879c6c844a3ecf0cfae678aea4a53d609f5047cef383ba131e676
font_04_sfnt_off00014203.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14203 16276 bytes
SHA-256: 92f32cb02bae1a810d583ac67aa46ed8971ae89b9c25b090cc28ff507635f8f2

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