PDF malware analysis — malicious · 7567967b2b84124f

MALICIOUS

PDF

254.0 KB Created: 2021-06-13 14:43:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02

MD5: df9d95f6e9621e9fc68c375985ade071 SHA-1: 888f876eca3c209602f7f32da646f2150f65e3f5 SHA-256: 7567967b2b84124ffefac2cedee530c45cbb0c89f70cac6a86e974be01d40736

126 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm, many hosted on compromised CMS upload directories. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

Nyx PDF Classifier malicious score 0.9966

Heuristics 5

ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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.
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://krisoc.ru/uplcv?utm_term=download+video+boboiboy+galaxy+the+movie+2 PDF link annotation
- http://raunlarose.us/wp-content/plugins/formcraft/file-upload/server/content/files/16072a5d00d536---9153040642.pdfIn PDF document text
- https://comobrew.com/newsite/images/user_uploads/file/56845267832.pdfIn PDF document text
- http://guides2alpes.fr/uploads/file/kobatepadidupenedibolij.pdfIn PDF document text
- https://nbcmedia.vn/ckfinder/userfiles/files/33241514901.pdfIn PDF document text
- https://www.cr-sdc.org/wp-content/plugins/super-forms/uploads/php/files/0b079c26c0bc82b14b25b1046160210c/limotap.pdfIn PDF document text
- https://sportli.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/16081aa16a7413---25499914238.pdfIn PDF document text
- https://erinmillssmilesdentistry.com/wp-content/plugins/super-forms/uploads/php/files/akm39khh0ljbn4ju2bcaneqbf3/womiguwujuzepas.pdfIn PDF document text
- http://alexanderkanevskyartgallery.com/clientMedia/file/logazevikuvimorumasotif.pdfIn PDF document text
- https://doitsolutions.co/wp-content/plugins/super-forms/uploads/php/files/bef4020cf33206fdc32f3557ef574dff/rotikumepubefixuxufaguli.pdfIn PDF document text
- https://gdr.co.il/wp-content/plugins/super-forms/uploads/php/files/a8253c0fc0ea89059d1484f559a0fee1/98968127627.pdfIn PDF document text
- http://sgrappresentanze.eu/userfiles/files/25252910371.pdfIn PDF document text
- http://colafranceschi.it/userfiles/files/fisudonebibenowol.pdfIn PDF document text
- https://aquariumfargo.com/wp-content/plugins/super-forms/uploads/php/files/7ebcb28f3935e14fb34f85a86c038b6d/73546847837.pdfIn PDF document text
- https://medok18.ru/wp-content/plugins/super-forms/uploads/php/files/dedeff93cf79172486b555ea5af9f836/sifilazedobogirijup.pdfIn PDF document text
- http://grupogmec.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c28c321bbf2---18966523264.pdfIn PDF document text
- https://drmarlenebothma.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160a4f49e605f9---firefekowegesixoxal.pdfIn PDF document text
- http://ahkjt.com/upfile/file/94956620323.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn 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://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.

Filename	Kind	Source	Size
`stream_002_off00014fd2.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x14FD2	202088 bytes
SHA-256: `2565028bc71f35468aa458c8f864b7bd3b7c4b6de039a1c3e36af4f66a159b43`
`font_01_sfnt_off00039987.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x39987	5560 bytes
SHA-256: `0d8cfbac6c461461fa90540c66f2398e8d3e5ba1aef3e093ef8d0c2a0f52c6e5`
`font_02_sfnt_off0003ac73.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x3AC73	12288 bytes
SHA-256: `6041dd6d184dbc74a627405966b86ccdc82eabd1e33e021f60d0118dadb6d6a4`
`font_03_sfnt_off0003d556.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x3D556	16060 bytes
SHA-256: `4c0a3f0893f5e69c6acf0c6b7f036872587aec6188c41bdd40a009ab43c82216`

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