Malicious PDF — malware analysis report

Static analysis result for SHA-256 324f1ea2b131cfef…

MALICIOUS

PDF

67.9 KB Created: 2021-05-22 16:41:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2406f4848cd0f498844c0ee78ff31c8a SHA-1: 6b9c620e1d13d5f42f5005324293548390c17e3b SHA-256: 324f1ea2b131cfef10af92414b2ce49f3ffbc87b3d0940e85d6afed8c1bee26f
156 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics as malicious, including a ClamAV detection for 'Pdf.Phishing.Trojan'. It contains a link farm pointing to various domains, many of which are hosted on compromised CMS platforms or disposable hosting. The document body, though heavily obfuscated, appears to be a lure related to dream interpretation, likely to trick users into clicking the embedded links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9933

Heuristics 6

  • 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
  • PDF differential parser failed info PDF_DIFFERENTIAL_PARSE_FAILED
    The cross-check parser (pdfminer.six) failed on this file: PDF differential parser failed: PDFSyntaxError. Static heuristics still ran and any of their findings above are valid; only the differential cross-check signal is missing.
  • 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://elementsgogreen.com/userfiles/file/fopamaxijixofesifasedidap.pdf
    • http://abpaluso.com/upload/file/203397561.pdf
    • https://refour.eu/wp-content/plugins/super-forms/uploads/php/files/7f79ef23ee50731dfc46d6f4338cb5ab/puneterexapawa.pdf
    • https://siyata.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/1608b0ec428908---82730445506.pdf
    • https://hopefor.today/wp-content/plugins/super-forms/uploads/php/files/d1395751ff7ae13a4cf3991f70613b49/44271720041.pdf
    • http://videoacceso.com/wp-content/plugins/formcraft/file-upload/server/content/files/16097e4f989ecd---26793500871.pdf
    • http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a28f33f17d5---dologolukikevoleduvewitov.pdf
    • http://eortak.com/img/fck_temp/file/49724128851.pdf
    • https://e-lightingcontrols.com/wp-content/plugins/super-forms/uploads/php/files/2666bc4b2e5654c7d7946a0810b24240/37375399862.pdf
    • http://kwik-it.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16085311305703---nonewopusidesazomik.pdf
    • https://gccpay.net/wp-content/plugins/super-forms/uploads/php/files/e1e71d9940c36f5a6227c2e07fc7bb52/nuritaxoxonixoronigaze.pdf
    • https://paperland.bg/uploads/file/82320964499.pdf
    • https://krimgranit.ru/wp-content/plugins/super-forms/uploads/php/files/fa13114370618d8a84489628df787065/72126946568.pdf
    • http://absolutelyneon.com/userfiles/file/mawavalerukatopulaki.pdf
    • http://americanpetrochemicals.com/customers/CMS-IMAGES/file/luturawuvupupovuvo.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/Om9ozkHLxGw/uplcv?utm_term=que+significa+so%25C3%25B1ar+con+una+culebra+amarilla+grande
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d319.bin
0aafc756b65fdc8c46e3862a625d9a12cc1ac35effdcaef0aa79821c33f99b73		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD319 5752 bytes
font_01_sfnt_off0000e652.bin
801cccd7e954b6a903fd7fcf375f616ee8288851fd8753e568bbfd3cd43003b6		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE652 11556 bytes

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