Malicious PDF — malware analysis report

Static analysis result for SHA-256 2a682f11f61a0e42…

MALICIOUS

PDF

92.0 KB Created: 2021-08-12 03:42:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-12
MD5: 36139a26e2830388de7ccdb165106e38 SHA-1: c8d261321067ac6abbdbd5b5076d757bbec10e32 SHA-256: 2a682f11f61a0e42d386c5a7de11e568decc453ff290939e7e48ad5070c951be
176 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 User Execution: Malicious File

The PDF document was flagged by ML classifiers and ClamAV as malicious, indicating it likely contains a malicious payload. The 'SE_ENABLE_LURE' heuristic suggests the document instructs the user to enable macros or editing, a common tactic for malware droppers to execute their payload. The embedded URLs point to compromised websites hosting further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

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.
  • Macro/content-enable lure medium SE_ENABLE_LURE
    Document instructs the user to enable macros or editing — a common technique used by malware droppers to bypass Office macro security settings
  • 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://lostsoulsmemorialnj.org/wp-content/plugins/super-forms/uploads/php/files/c1e28b98e5c5d7e4145d813c227519c0/fikifivelowufa.pdf In PDF document text
    • http://www.suffaheducation.com/wp-content/plugins/formcraft/file-upload/server/content/files/16077d7447cde7---vufodomapovakal.pdfIn PDF document text
    • http://deborahkay.com/ckfinder/userfiles/files/38393535755.pdfIn PDF document text
    • https://forex-robo.org/wp-content/plugins/super-forms/uploads/php/files/aa27f08ee94e4efea14e692a9af8a36c/76533639136.pdfIn PDF document text
    • http://thietbixanh.net/uploads/files/demivefudepawonureza.pdfIn PDF document text
    • http://www.k-24.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ab5ce47c8e1---61290434443.pdfIn PDF document text
    • http://ophirtonhotel.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160b1a9363937e---wijenetozekavevitax.pdfIn PDF document text
    • https://benhgout.net/uploads/Files/file/kenesabike.pdfIn PDF document text
    • http://www.louthadventures.ie/wp-content/plugins/formcraft/file-upload/server/content/files/160dc3841e0e8a---4619957306.pdfIn PDF document text
    • http://tw-sincere.com/upfiles/editor/files/19298856552.pdfIn PDF document text
    • http://www.urbanwaterways.info/files/kelivuzebamunumunazug.pdfIn PDF document text
    • http://sieuthibongda.net/ckfinder/userfiles/files/74161104351.pdfIn PDF document text
    • http://www.srijonihealinghome.com/fckimages/file/96153116217.pdfIn PDF document text
    • http://www.mvdisposal.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607c634c9a2ab---pagezop.pdfIn PDF document text
    • http://matrixuniverzum.eu/wp-content/plugins/formcraft/file-upload/server/content/files/1607542284bfa8---34846321753.pdfIn PDF document text
    • http://ruben.pl/ckfinder/userfiles/files/dubev.pdfIn PDF document text
    • http://odpadykj.cz/UserFiles/File/57282237673.pdfIn PDF document text
    • http://bridgesonthepark.com/wp-content/plugins/formcraft/file-upload/server/content/files/16073fd137cf74---20545751778.pdfIn PDF document text
    • http://usaoxin.com/userfiles/2021-6/file/38524173905.pdfIn PDF document text
    • https://cmetrix.net/ckfinder/userfiles/files/jojudu.pdfIn PDF document text
    • http://kinel-hunter.ru/upfiles/file/89144389675.pdfIn PDF document text
    • http://kpotplace.com/uploads/files/98755827332.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/DOqCt-cVA4I/uplcv?utm_term=como+conseguir+diamantes+gratis+en+dls+2020PDF 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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fe75.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFE75 11084 bytes
SHA-256: 7a630bc654eae67391f75ecc80501710541c2c3474c84d8e1f8d132baafb1ee4
font_01_sfnt_off00011823.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11823 18932 bytes
SHA-256: 3b2984445a6d99ff346e43a26134cf3ca41b555d9de54175589ab8dcb10e71f1
font_02_sfnt_off0001480a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1480A 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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