Malicious PDF — malware analysis report

Static analysis result for SHA-256 2fa6ec472bef6a8a…

MALICIOUS

PDF

82.9 KB Created: 2021-06-19 21:13:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-24
MD5: 8b3dd39e582c1d94ae65122859c248a3 SHA-1: 5d17b65c4dac0f6df5814d5071135e077e5c540e SHA-256: 2fa6ec472bef6a8a074977b20d3f657120d642634d699293d2683b7ee199a416
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains numerous links, many pointing to compromised WordPress sites, indicating a link farm or SEO poisoning attempt. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or malware distribution via these links. No scripts were extracted, and the document body was unreadable, limiting further analysis of specific payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://eminencesolutions.in/resources/userfiles/file/63443484542.pdf In PDF document text
    • http://richmore.kr/uploadfile/fckeditor/file/mokagejelo.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160afdb196bf06---vokasojo.pdfIn PDF document text
    • http://thaimassagemodel.com/ckfinder/userfiles/files/71154397178.pdfIn PDF document text
    • https://www.landalastadservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/16092d4aa3a7e1---37210088115.pdfIn PDF document text
    • https://emergent-partners.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b0f853061c4---rifab.pdfIn PDF document text
    • https://qnzar.com/files/jilapizejilaroliriwiwobud.pdfIn PDF document text
    • https://provisionsinternational.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607c24ba7fa68---tawidu.pdfIn PDF document text
    • https://www.geosuiteonline.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607c21a381685---2854886235.pdfIn PDF document text
    • https://purpleleafestatebuyers.com/wp-content/plugins/formcraft/file-upload/server/content/files/16071294f98701---gimesebuwojusadimuge.pdfIn PDF document text
    • https://realimpacto.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160b4e29aee7d3---kowexulezuwenid.pdfIn PDF document text
    • http://www.sphotobooth.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606e9108243b1---rebulavoredotaverasokovus.pdfIn PDF document text
    • https://gamletaarnhuset.no/wp-content/plugins/formcraft/file-upload/server/content/files/160ba349bc432b---77511448335.pdfIn PDF document text
    • http://fincasotilloviejo.es/files/sotillo/_repo/file/91807955651.pdfIn PDF document text
    • https://jjmassociates.com/wp-content/plugins/super-forms/uploads/php/files/07d52b357a0ee47e3f85d06434b1f9e2/ludapusu.pdfIn PDF document text
    • https://weblative.com/wp-content/plugins/super-forms/uploads/php/files/31pmhm40ctadsf4h6t3msalsu2/jowimifasikoduvim.pdfIn PDF document text
    • https://www.lenoir-elec.com/wp-content/plugins/super-forms/uploads/php/files/0eea6s6bi2oles4b7c4i8mopgh/kubidakizewofitililuv.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/fzgW7-mxBc0/uplcv?utm_term=ludo+and+snake+and+ladder+game+downloadPDF 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://scripts.sil.org/OFLIn 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_off0000e2bf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE2BF 5240 bytes
SHA-256: 08ce804a131857344502af6634993ed6e1eba957f289d675b5d0db647347ff87
font_01_sfnt_off0000f489.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF489 3508 bytes
SHA-256: 0e52a5d9ea07c8b5fbf84441a08fc58c426174ba1b4714b803621cefe22ca0be
font_02_sfnt_off00010257.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10257 11016 bytes
SHA-256: 3f2a7b942c7634893e03d6d066c0fbf2b2da3f68a0ae41e360afda49199582f4
font_03_sfnt_off0001284a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1284A 16144 bytes
SHA-256: 2a5f1667c2e343500efde63e3dd6a136498333968b1680966ac5eb34589f1174

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