PDF malware analysis — malicious · b82d9ab75df1313a

MALICIOUS

PDF

87.6 KB Created: 2020-11-24 23:13:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: ea46efb26a7ded98d61304a010eab80c SHA-1: e5078d3cc16dd4704c9c5e6eaf74dcea59fbef58 SHA-256: b82d9ab75df1313aa873a3e3d5891de567ea472c31da974d871080218ac7dd7d

154 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF was flagged by multiple heuristics, including ClamAV and an ML classifier, indicating malicious intent. It contains a large number of external links, with the primary suspicious URL being trafffe.ru. The PDF structure and embedded content suggest it's part of a link farm or phishing campaign, aiming to redirect users to potentially harmful sites.

Machine Learning

Nyx PDF Classifier malicious score 0.9050

Heuristics 4

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-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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://trafffe.ru/strik?utm_term=jang+geun+suk+you%2527re+beautiful
- https://cdn-cms.f-static.net/uploads/4381344/normal_5fa9459c3f606.pdf
- https://cdn-cms.f-static.net/uploads/4419650/normal_5f9c25777b1db.pdf
- https://cdn-cms.f-static.net/uploads/4406169/normal_5fb4fc6a0f76a.pdf
- https://cdn-cms.f-static.net/uploads/4386591/normal_5fadcd30dbaf6.pdf
- https://gavawujag.weebly.com/uploads/1/3/4/3/134370084/5542432.pdf
- https://cdn-cms.f-static.net/uploads/4384316/normal_5f9c1929be8dc.pdf
- https://lurabesuweki.weebly.com/uploads/1/3/4/5/134524451/648c468b.pdf
- https://cdn-cms.f-static.net/uploads/4489733/normal_5fbc954a0d098.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://uploads.strikinglycdn.com/files/b467bd6f-d462-4b6a-a76c-2950d2919caf/98743552479.pdf
- https://uploads.strikinglycdn.com/files/aa466a48-9f5e-4b43-8ee9-bb75e44401f4/el_poder_de_la_esposa_que_ora_descargar_gratis.pdf
- https://uploads.strikinglycdn.com/files/e943a541-1709-48d4-9b2e-799b6c9e397e/josiwidagekepuje.pdf
- https://uploads.strikinglycdn.com/files/bc80fd90-6c82-4feb-b55b-a71adbfbd083/jaxale.pdf
- https://uploads.strikinglycdn.com/files/7dfe7d7e-8c2e-4747-9a76-027c8569acdc/solidworks_books_free.pdf
- https://uploads.strikinglycdn.com/files/aee3824b-6e95-40e4-bde1-37585fc44619/pico_sim_date_answers_for_nene.pdf
- http://scripts.sil.org/OFL

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000ea3d.bin` `ba28a244fd9257149bd7099c029b9a4565d3cd1bc089a7eadbf2fdd0793747f3`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xEA3D	15188 bytes
`font_01_sfnt_off000119cf.bin` `6ae67696004b0783f71e36ecad9816d20ed12c394f9da5f28309c38a608f9411`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x119CF	5264 bytes
`font_02_sfnt_off00012be0.bin` `35d096ee6b44c8e29b9a8e8da4020d50b5c43d75e228c594d587917644343c8c`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x12BE0	12304 bytes

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