Malicious PDF — malware analysis report

Static analysis result for SHA-256 3412ac23f16e74d6…

MALICIOUS

PDF

79.6 KB Created: 2021-07-25 17:19:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: ea4cd6401ed6a4ac365fe9b13c410770 SHA-1: 7d8c3bb81f62cc085fee332be48420f60f4aa9b1 SHA-256: 3412ac23f16e74d625765512b41b95c65b8ae68a80fe9c8a2056d5a9d8ed7741
154 Risk Score

Malware Insights

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

The PDF contains numerous links, many of which point to compromised CMS upload directories or disposable hosting, indicating a link farm designed to lure users to malicious content. ClamAV detected this file as Pdf.Phishing.Trojan, and ML classifiers also flagged it as malicious. The presence of multiple unknown URLs suggests a phishing or malware distribution campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6314

Heuristics 5

  • 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
  • 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://heritagelogs.com/wp-content/plugins/super-forms/uploads/php/files/hk2h1tbkofkrtqhu5sr1srl9fk/tulimikasaminemolitikamu.pdf
    • https://semsaesp.com/ckfinder/userfiles/files/gebisaxekotepodojaparepov.pdf
    • https://wagaskar.com/media/12085222070.pdf
    • http://dobraukraina.org/sites/all/sites/dobraukraina.org/files/kefewirikevatisunaxopikuk.pdf
    • https://dtcprojects.com.au/wp-content/plugins/super-forms/uploads/php/files/2s60f6ungtoh1lar43rua3d4m2/15642445709.pdf
    • https://varbackaforskola.se/ckfinder/userfiles/files/wiruwen.pdf
    • http://www.thediethub.in/wp-content/plugins/formcraft/file-upload/server/content/files/160aa0289a83e5---38088259694.pdf
    • http://hubbardfamilycircle.com/clients/62940/File/mumagevi.pdf
    • http://atlantichomeportugal.com/wp-content/plugins/formcraft/file-upload/server/content/files/160813f496271d---67345321939.pdf
    • https://dalyanestate.com/userfiles/file/bobuwafigidewo.pdf
    • https://aryaayur.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a409b392c09---75190015098.pdf
    • http://hnc2.com/userfiles/file/xuvikiganov.pdf
    • http://tantex.org/tantex/tantexuserfiles/file/xixezejabagu.pdf
    • https://www.c2commercial.com/wp-content/plugins/super-forms/uploads/php/files/3b5dd9985a04f12aba4593084338ed42/tatumumokex.pdf
    • https://daaeportrett.no/upload/file/7017117793.pdf
    • https://lbassicurazioni.it/file/33659130345.pdf
    • http://www.northeastmarquees.com/wp-content/plugins/super-forms/uploads/php/files/24f90c4cdf925a420a63138e23b9be9a/54337119157.pdf
    • https://marathonroller.com/userfiles/files/jijonat.pdf
    • http://innotec-industrie.be/userfiles/file/24375146056.pdf
    • https://vashadvokat82.ru/wp-content/plugins/super-forms/uploads/php/files/60ec556e2c30b722db3b9dcb678dd1d2/99402902302.pdf
    • https://aryaayur.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608dfb89a1f3e---34682860529.pdf
    • https://dalilak1.com/userfiles/file/gofowajojoj.pdf
    • https://bluetact.com/locktactyuma/userfiles/file/nedisujekak.pdf
    • http://businessplan-capalpha.eu/mbp/upload/images/images/upload/ckfinder/buzawomubi.pdf
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BkSY9tpko7c/uplcv?utm_term=how+to+get+cursor+back+on+lenovo+laptop
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ef63.bin
a2a2b7562bd9f6f1021212d3564c40d9fd9fae7bcf485192a8eea7e1209af724		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEF63 10932 bytes
font_01_sfnt_off000108bd.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x108BD 16792 bytes

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