Malicious PDF — malware analysis report

Static analysis result for SHA-256 eaa2a6e432e4ce7f…

MALICIOUS

PDF

85.2 KB Created: 2021-06-30 14:11:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 2768aa46eb389c036973834f1e27b6e4 SHA-1: 5d802fcde9b76ae778bcb2bcabddb9c422d2e61d SHA-256: eaa2a6e432e4ce7fa31c9e22412096e4ca1febb247f46c3492403ddb9137ff7f
156 Risk Score

Malware Insights

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

The PDF contains numerous links, many hosted on compromised CMS upload directories, indicating a link farm designed to redirect users to potentially malicious content. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or malware distribution. No scripts were extracted, but the structure and URL patterns are indicative of a downloader or phishing lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9951

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 http://www.predoisiasociatii.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16094a3a309559---38342661282.pdf
    • http://www.bridalchapel.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a659789cf29---32651607360.pdf
    • http://yucehukuk.com/resimler/files/migetuw.pdf
    • https://snabavto.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606ca3bea48d3---18303070410.pdf
    • http://doubletroubels.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606dc0aeee1aa---zixoranoko.pdf
    • http://eventcompany.org/clients/e/e3/e30ef11cf4efe639fe6592aa37b9cb94/File/leserotaganujobosarez.pdf
    • https://smartmedia.ro/app/webroot/files/userfiles/files/39426302094.pdf
    • https://ecomassage.pt/wp-content/plugins/super-forms/uploads/php/files/hu12lt4n6v4rj6i9psj0bttjnu/50680142575.pdf
    • http://www.kevinbrooks.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160c5f5c646dab---mamojexafunubimilijuda.pdf
    • http://www.recetasyconsejos.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c565b361352---78721902577.pdf
    • https://ceadersvalet.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608a521b89364---22491672726.pdf
    • http://kameleonhastanc.hu/files/file/dewaxane.pdf
    • https://xn----7sbbjg7ctfs.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/28745fe46a6d8197a08083033fb0b9bb/kaminipanage.pdf
    • http://pulsarvn.com/media/ftp/file/41228517099.pdf
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16093a0eace430---70013521862.pdf
    • http://www.inhd.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1608f6ad460389---zivigonewugajugojake.pdf
    • http://www.mmalappeenranta.com/tiedostot/files/duxesemepirepibisivu.pdf
    • http://irmascaritasdejesus.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/160b64d790570b---sopifo.pdf
    • https://aftaplan.com/works/peepsparty/html/upload_files/file/47105508721.pdf
    • http://yuseigachi.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16072c1ec5f9a5---wuxaxajilipawaxobadede.pdf
    • https://fetogram.com/images/upload/files/lurapisoxi.pdf
    • http://inewbus.com/wp-content/plugins/super-forms/uploads/php/files/00vdad7vi4fh6e860q903s6ba0/69335280583.pdf
    • https://aduanaldelvalle.com/userfiles/file/28247737648.pdf
    • https://alfa-pechati.ru/wp-content/plugins/super-forms/uploads/php/files/c3adc6ba002ae2d6b631c703bacc786d/25803565085.pdf
    • https://feedproxy.google.com/~r/skout/mBVl/~3/1xuhb7AK25c/uplcv?utm_term=worcester+bosch+28si+manual
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e9ae.bin
018a220f47098a1ee68b6968d8de8c2f03bd2ed501ba15d0fa26d1269585de2e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE9AE 11056 bytes
font_01_sfnt_off00010355.bin
8b4283230cb49ad2363c41246450ce5d7c176da6684aca3ecb465317e2ee0bc1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10355 17092 bytes
font_02_sfnt_off00012fc5.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12FC5 16792 bytes

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