Malicious PDF — malware analysis report

Static analysis result for SHA-256 95069422ce8f758c…

MALICIOUS

PDF

81.0 KB Created: 2021-07-07 13:14:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-09-14
MD5: 4f0465eeafdc9f2baf7705b6dd085e63 SHA-1: b7fde80893d735844920518c591a457e0e1ee9f7 SHA-256: 95069422ce8f758cdbf9a1d74228d2d5fc1992fce70e5563045c7a7ea5dd358e
156 Risk Score

Malware Insights

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

The PDF contains a large number of external links, many pointing to compromised WordPress sites or disposable hosting, indicating a link farm designed to distribute malicious content or phish users. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or malware delivery via these links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9940

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
  • 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://infrive.ru/uplcv?utm_term=chemical+changes+gizmo+answers+pdf PDF link annotation
    • http://minhvuongthuphap.com/upload/ck/files/98951660802.pdfIn PDF document text
    • http://creativeindustries.ru/uploads/userfiles/file/12196816276.pdfIn PDF document text
    • https://master.plus/wp-content/plugins/super-forms/uploads/php/files/22ee026b71c884778e90c4ad498909a6/21776429613.pdfIn PDF document text
    • http://funperm.ru/content/file/mikujos.pdfIn PDF document text
    • http://55pluscommunityspecialist.com/userfiles/files/50868630189.pdfIn PDF document text
    • http://alliance-ltd.com/userfiles/dofadidimabepuguwizeroj.pdfIn PDF document text
    • https://www.spoton.pet/wp-content/plugins/super-forms/uploads/php/files/u8vbc0mjhfl6v076dqv5jkr16q/38004414963.pdfIn PDF document text
    • https://www.abaco-engineering.it/wp-content/plugins/formcraft/file-upload/server/content/files/1607616625f706---94186966187.pdfIn PDF document text
    • http://sakirnoopo.ru/wp-content/plugins/super-forms/uploads/php/files/b00d404d1bf5a376359db755e1288104/jimiserarupomi.pdfIn PDF document text
    • https://gancza-yacht.pl/userfiles/file/51677513792.pdfIn PDF document text
    • http://www.megasaludips.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608f902a84fdb---vinogerupazofokegutulaga.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607e469cee8f2---vabive.pdfIn PDF document text
    • http://kientrucnhacuagio.com/upload/files/22690866490.pdfIn PDF document text
    • https://fortlauderdale-carservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/160809f0910fd8---mofina.pdfIn PDF document text
    • http://jinistudy.com/_UploadFile/Images/file/rusatafu.pdfIn PDF document text
    • http://firmykominkowe.pl/Obrazki/edytor/file/14247514045.pdfIn PDF document text
    • https://xlux.vn/wp-content/plugins/super-forms/uploads/php/files/ba3qo9621e18936863j5cs863k/nepuvejigebizigurisaju.pdfIn PDF document text
    • https://tiguan-wiki.ru/file/97064543265.pdfIn PDF document text
    • http://english-life.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16071ccab8ac32---8218798736.pdfIn PDF document text
    • http://billsky.ee/files/file/4696456073.pdfIn PDF document text
    • http://archi1919.com/smlclub-files/file/46744534446.pdfIn PDF document text
    • http://www.logistiekverbeteren.nl/ckfinder/userfiles/files/35274379427.pdfIn PDF document text
    • https://luxurytravel-show.com/wp-content/plugins/super-forms/uploads/php/files/559095126dfe76963e6d260a39154363/50616270108.pdfIn PDF document text
    • 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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c2c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC2C1 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000dad8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDAD8 11148 bytes
SHA-256: 9fe1bdf3003e4a67fe3eaf5720158c5929aad689f8839bf8b983fd7b956a81fc
font_02_sfnt_off0000f495.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF495 16956 bytes
SHA-256: 8887583c19222c40384d2fa1795bbef90c45c09722d39c4e060af941656ae605
font_03_sfnt_off000120eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x120EB 16092 bytes
SHA-256: 9d5144547e0b729630886a3ad3ce48e7da84b0115899dd9c2390406af6f0fecd

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