Malicious PDF — malware analysis report

Static analysis result for SHA-256 bed9295b24dd2240…

MALICIOUS

PDF

91.6 KB Created: 2021-06-28 01:24:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: d7d755a8f6821a85523830d2fc53e0a0 SHA-1: 69fffeffae0c6ace309a7a83cb1e29d1277bfa02 SHA-256: bed9295b24dd2240be3687ac1237e5f13db4a3547acef0b5e572dfd4c9187ab6
156 Risk Score

Malware Insights

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

The PDF contains numerous embedded URLs, many of which point to compromised WordPress sites and disposable hosting domains, 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 from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9835

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://lacyfamilyunity.com/clients/2/20/203fd950dafdada58ea32e7b96f0d147/File/87224686878.pdf
    • https://www.pharmaright.ca/wp-content/plugins/super-forms/uploads/php/files/mf7rggmn6ilni8ss123hjt5cf2/49941377562.pdf
    • http://righetti-ticozzi.it/userfiles/files/25111139905.pdf
    • https://wentworthre.com/wp-content/plugins/super-forms/uploads/php/files/e75be9e91a51e1f74ad44abb95289632/56427293017.pdf
    • http://alhouti.com/userfiles/file/bagufajozetisumipopofujo.pdf
    • http://www.contectrade.hu/fckfiles/file/kanigijije.pdf
    • https://kurek-rowery.pl/user_pict/file/749296463.pdf
    • https://www.ptlittleflower.org/wp-content/plugins/super-forms/uploads/php/files/34h9v1dotntpkadt5u0e284048/89840664262.pdf
    • http://yuseigachi.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16088dd2cf0143---vowujuzaxudanuzutimegaxud.pdf
    • https://hiroyoung.com/data/files/dijetejojimesegej.pdf
    • http://tlproduct.com/userfiles/file/49166901133.pdf
    • http://wbbray.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a04188d65af---birajudaku.pdf
    • https://www.uniqueartzz.com/wp-content/plugins/super-forms/uploads/php/files/vgll8u167f0fvdmk1h6lr9v855/59043725323.pdf
    • http://www.thelawchamber.com/wp-content/plugins/formcraft/file-upload/server/content/files/16098372167496---68109777732.pdf
    • https://stancijanegrin.com/UserFiles/files/siwapoke.pdf
    • https://thriveelearning.com/wp-content/plugins/super-forms/uploads/php/files/cd63594ba4543ab754589a22d05c66c2/tixuzuwetikudotatunurej.pdf
    • https://asiatravel.kg/wp-content/plugins/super-forms/uploads/php/files/36a58523f23cae2f257b8effd9bb2c5e/vesezigumasewovoxexanevo.pdf
    • http://iwish-cosmetics.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607ac3a9176d7---tosukakugobudopawifukiku.pdf
    • http://photographybynami.com/wp-content/plugins/formcraft/file-upload/server/content/files/16099bdb43c8ea---voligovujexavanikufopeze.pdf
    • http://merwepizza.com/upload/file/devulutevu.pdf
    • http://xn--b1ahhafccpgkb2bxo.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/445f0347aebf508c40f59c1461ffc39a/konelifeputematibajodaz.pdf
    • https://www.pfgpartners.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160b06fd56dff9---napopasulivuvuvokivalikur.pdf
    • http://timelessmebel.ru/wp-content/plugins/super-forms/uploads/php/files/34447d81adb07f80c5ccba15195cf56c/74556545206.pdf
    • https://www.techsrollout.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d3776c0d513---79268895838.pdf
    • https://visionbrindes.com/admin/fckeditor/userfiles/file/loxexaledikime.pdf
    • https://www.audioclinica.pt/wp-content/plugins/super-forms/uploads/php/files/50cgitluu8u862mri12i20nksg/lanuxulukug.pdf
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/PmAiG5ZyT-k/uplcv?utm_term=what+removes+thermal+paste
    • 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_off0001053c.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1053C 16792 bytes
font_01_sfnt_off00011d4e.bin
11929b4555700259127c4efa76196990e65a2de04eaf968a7dc0ca50edb3341d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11D4E 17064 bytes
font_02_sfnt_off000149cc.bin
0ebb3aff1518f3ca31f011a39c8147d16150c5057d7213df5ce78378f188cc9b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x149CC 10380 bytes

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