Malicious PDF — malware analysis report

Static analysis result for SHA-256 080ae11b12efb005…

MALICIOUS

PDF

87.2 KB Created: 2021-07-16 08:04:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-09-13
MD5: 40c272b75dd6f5450d9b4fe437194662 SHA-1: 126c5e474d0ddbbaecf1ea1591f77c207d05ae75 SHA-256: 080ae11b12efb005da087623be0b58b7c1d863c2c333a3d162994017ec15fe96
196 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document is classified as malicious and exhibits characteristics of an advance-fee scam. It contains numerous links, many pointing to compromised CMS upload directories, suggesting a tactic to host malicious content. The heuristic 'SE_ADVANCE_FEE_SCAM_LURE' strongly indicates the document's intent is to defraud the user with promises of prizes or funds requiring upfront payment or delivery fees. No scripts were extracted, but the embedded URLs and the nature of the heuristics point to a phishing or social engineering attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9942

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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://allytemp.ru/uplcv?utm_term=tt+payment+meaning PDF link annotation
    • https://www.swx.global/wp-content/plugins/super-forms/uploads/php/files/3ebb36016579a6801d75fcb87e059fd6/magadiwifikizafegetuko.pdfIn PDF document text
    • https://home18.ru/wp-content/plugins/super-forms/uploads/php/files/fe3099f994f14fe97a04be84823d8622/lowefepidoneli.pdfIn PDF document text
    • http://trainternational.in/wp-content/plugins/formcraft/file-upload/server/content/files/160d01e7908d1a---vodigegepopevekos.pdfIn PDF document text
    • https://bykevin.com/wp-content/plugins/super-forms/uploads/php/files/f7c3c1b3b8466fc5d1dc7f763616033e/kimobepejidegezerasi.pdfIn PDF document text
    • https://carpanea.it/wp-content/plugins/super-forms/uploads/php/files/3ae77d16b7b95adbbfa0d5269d88d7de/mojitemeko.pdfIn PDF document text
    • https://www.schroedersales.com/wp-content/plugins/super-forms/uploads/php/files/86b3128cab28a056da1c299f53cff9ce/vepejixu.pdfIn PDF document text
    • http://zartmobilia.com/userfiles/file/20210618114845.pdfIn PDF document text
    • https://cualuoihoanmy.com/uploads/userfiles/file/31775597077.pdfIn PDF document text
    • http://karinameal.ru/imgdish/files/jubikalakigepidimux.pdfIn PDF document text
    • http://chrisdepanneservices.fr/Sites/cds/files/tedogibijiguminaw.pdfIn PDF document text
    • https://alakharia.com/public_html/userfiles/file/13641153787.pdfIn PDF document text
    • http://elhammagazine.com/ckfinder/userfiles/files/levebapefudasowovunejej.pdfIn PDF document text
    • https://sgdivorcelawyers.com/wp-content/plugins/super-forms/uploads/php/files/aa2b26e273ba9d601c7c77d711e96d46/56966001300.pdfIn PDF document text
    • http://kraljicabih.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c757fdc7896---400887.pdfIn PDF document text
    • http://dmn.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160c8614c9158f---kubezuravobiku.pdfIn PDF document text
    • https://prosperitas.be/data/assets/file/22611536552.pdfIn PDF document text
    • https://apoc.com.au/wp-content/plugins/super-forms/uploads/php/files/8d7e477a34258c1363e595174424c737/15027193984.pdfIn PDF document text
    • https://garraldaarquitectura.com/garralda_userfiles/files/buwugosuge.pdfIn PDF document text
    • http://murphysbeads.com/clients/54316/File/nomutedumiwe.pdfIn PDF document text
    • http://geometrabottero.it/userfiles/files/xafoxezekenanogarisiwo.pdfIn PDF document text
    • http://botanicgardenscafe.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16099b2417a115---23665282449.pdfIn PDF document text
    • https://www.colegiodesafio.net/home/wp-content/plugins/formcraft/file-upload/server/content/files/160a4cb8f2793b---vuruvenulaboli.pdfIn PDF document text
    • https://www.scanworld.se/wp-content/plugins/formcraft/file-upload/server/content/files/160809e2544a46---gabose.pdfIn PDF document text
    • http://mdbim.pl/ubezpiecz/obrazy/file/34498500628.pdfIn PDF document text
    • https://tahitotfaluovodak.hu/ckfinder/userfiles/files/vorekagorugifit.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f1cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF1CB 17648 bytes
SHA-256: 2288f2617a5f5010a551bed5445bd089c463ea905cdd864dd9f9296cd155dbe7
font_01_sfnt_off0001205c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1205C 10240 bytes
SHA-256: b8b6e6e24ff3076f69239923843cc8c41dfaa8168f41b0e55a87f76e15e9b228
font_02_sfnt_off00013760.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13760 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1