PDF malware analysis — malicious · f1e7ab77e3396108

MALICIOUS

PDF

57.2 KB Created: 2020-08-19 23:23:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: ae71296eca1c7b2ab109c29a21604a29 SHA-1: 9ef85c16d7e4c334234eec40f52c01b33268b12e SHA-256: f1e7ab77e33961084b0a1cc8f6fb78bd8260a09970a1ac62278af9722cd3b8f0

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a malicious redirector link pointing to 'https://ttraff.ru/pify?keyword=baldor+pdf+calculo', which is a strong indicator of malicious intent. Additionally, the document exhibits characteristics of a PDF link farm, with numerous embedded URLs, many hosted on Shopify. The ML classifier also flagged this PDF with high confidence. The presence of these elements suggests the document is designed to lure users to malicious sites, likely for phishing or malware distribution.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 3

PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK

PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
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.
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://ttraff.ru/pify?keyword=baldor+pdf+calculo
- http://zalamef.youngoakmorgan.com/uploads/1/3/0/7/130776225/4364145.pdf
- http://files.foldadeaf.net/uploads/1/3/0/7/130739185/2981515.pdf
- https://cdn.shopify.com/s/files/1/0430/4338/9597/files/togagixilijinekekerilufin.pdf
- https://cdn.shopify.com/s/files/1/0439/1262/6344/files/12414019234.pdf
- https://cdn.shopify.com/s/files/1/0429/9020/7135/files/budismo_para_dummies_completo_gratis.pdf
- https://cdn.shopify.com/s/files/1/0438/0560/6049/files/algebra_formulas_for_ssc.pdf
- https://cdn.shopify.com/s/files/1/0435/0771/2155/files/mystic_zip_code.pdf
- https://cdn.shopify.com/s/files/1/0447/7721/0005/files/autumn_leaves_partitura_piano_gratis.pdf
- https://cdn.shopify.com/s/files/1/0436/8406/9526/files/antibacterial_activity_of_zinc_oxide_nanoparticles.pdf
- https://cdn.shopify.com/s/files/1/0432/0205/2257/files/pifexiboxikubedi.pdf
- https://cdn.shopify.com/s/files/1/0436/2518/5442/files/duzemiza.pdf
- https://cdn.shopify.com/s/files/1/0437/5805/9671/files/mp4_bollywood_movies.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/

Extracted artifacts 4

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off000084f8.bin` `dc3246fb2514bd649c435bdd01e8b2f8b38bd0d066e9111e56697aec27ba5d41`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x84F8	5020 bytes
`font_01_sfnt_off0000960f.bin` `9fcfd2b2c12c9d480c0beec3ee39f05b9e518edc5177a7a5fcc68dff0371f8a2`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x960F	2092 bytes
`font_02_sfnt_off00009fb0.bin` `fdb0a835a72be73d95fe010f2d153d14ccc079dedbc0951beb4846432a95ed75`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9FB0	10224 bytes
`font_03_sfnt_off0000c2bb.bin` `b118ad4a5f0f66e944d0a6e82a0dad6050c27e77cb1eabf64d07f40874ae21b7`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xC2BB	16080 bytes

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