Malicious PDF — malware analysis report

Static analysis result for SHA-256 3207c46e9de9256f…

MALICIOUS

PDF

87.9 KB Created: 2020-11-13 07:59:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: cff9abbb77f5010049268e483bf975d9 SHA-1: 13ccc4eb0e0a1964027ce5218dfac86ad3ea3a3b SHA-256: 3207c46e9de9256f1183181ced1ac8b734aee0d6675eb3105a9e823f7f5cf97a
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file was flagged by multiple heuristics as malicious, including a critical ClamAV detection and an ML classifier. It contains a large number of external links, many pointing to PDF files hosted on various domains, suggesting a link farm or SEO manipulation tactic. One embedded URL, 'https://traffset.ru/aws?utm_term=awdhesh+premi+bhojpuri+video++mp4', is particularly suspicious and likely serves as a lure or entry point to further malicious activity.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

Heuristics 5

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://traffset.ru/aws?utm_term=awdhesh+premi+bhojpuri+video++mp4
    • https://cdn-cms.f-static.net/uploads/4365635/normal_5f8aba4dbfbdc.pdf
    • https://xusawoji.weebly.com/uploads/1/3/0/7/130739635/wavek.pdf
    • https://cdn-cms.f-static.net/uploads/4413850/normal_5f963310282fb.pdf
    • https://fisezofibidan.weebly.com/uploads/1/3/4/3/134316577/8495f5.pdf
    • https://cdn-cms.f-static.net/uploads/4428342/normal_5f9877f1da054.pdf
    • https://xijanejomasug.weebly.com/uploads/1/3/4/5/134506458/vaxelotujaw.pdf
    • https://cdn-cms.f-static.net/uploads/4387939/normal_5fa05728e33a6.pdf
    • https://cdn-cms.f-static.net/uploads/4366302/normal_5fa942aa67745.pdf
    • https://cdn-cms.f-static.net/uploads/4389353/normal_5f99d53e81529.pdf
    • https://bilewazivabo.weebly.com/uploads/1/3/2/8/132816117/330bc79ad8.pdf
    • https://vajemedodumuni.weebly.com/uploads/1/3/4/3/134351385/ce93b04719.pdf
    • https://cdn-cms.f-static.net/uploads/4379854/normal_5fa2c28b3bb46.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • http://fedorahosted.org/lohit
    • https://s3.amazonaws.com/leguvefu/borges_library_of_babel.pdf
    • https://s3.amazonaws.com/dutuzanob/our_lady_of_light_estero_fl_mass_schedule.pdf
    • 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://scripts.sil.org/OFL
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d305.bin
4cf94588f9b391352ecaadd7f01e8acd1adba7f816dd814b6c2beaefe109e8c5		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD305 5100 bytes
font_01_sfnt_off0000e462.bin
afbf364675f99997ef1f1d39c548b90771c3d8c5861bce11fdc6f870993fa8c3		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE462 2424 bytes
font_02_sfnt_off0000ede7.bin
2657d933cf6f74c21c7adaa20444d62953264b42b80e667c2bb4aba7a4b5c689		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEDE7 11396 bytes
font_03_sfnt_off00011391.bin
f6e0f4a25f18a144688c6b7f40519a5efc98c72643b9054f89526e396d9b459d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11391 16144 bytes
font_04_sfnt_off00012892.bin
1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12892 4324 bytes
font_05_sfnt_off00013692.bin
075da99fb3c2b1e256349d579b1653fb0ce2d729251a77f147c4835c123ba2f5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x13692 7576 bytes

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