PDF malware analysis — malicious · bb793ddfcaf845f6

MALICIOUS

PDF

43.2 KB Created: 2020-08-01 13:22:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: bdf32fda379cf33a5ea7302898fd8b82 SHA-1: d8d36a651e626c9c4b00ef47d03f4ec61b5b4c21 SHA-256: bb793ddfcaf845f6e8760958b6e933403d9cfeff518229389b3cc2968087b30b

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains numerous embedded links, with a critical heuristic firing indicating a malicious redirector. The document body, though heavily obfuscated, contains text related to 'wor file extension' and a URL that appears to be a lure. The primary malicious URL identified is ttraff.cc, which redirects to further content. The PDF also hosts a large number of links to external PDFs, likely for SEO manipulation or to obscure the malicious redirector.

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.cc/pify?keyword=wor+file+extension
- http://files.highdefsalon.com/uploads/1/3/1/1/131164398/lasosis-vevetebagiviro-fiduwov.pdf
- http://files.housespechomeinspections.com/uploads/1/3/0/7/130775867/4908446.pdf
- http://files.897788976207812023.com/uploads/1/3/1/3/131383575/f4516abe7e4d1c3.pdf
- http://files.iambatinsane.com/uploads/1/3/0/9/130969115/85c6c.pdf
- http://files.mycannablissonline.com/uploads/1/3/0/7/130776401/5115539.pdf
- https://cdn.shopify.com/s/files/1/0433/9413/8277/files/kadawoxijosirog.pdf
- https://cdn.shopify.com/s/files/1/0429/6753/1673/files/narexef.pdf
- https://cdn.shopify.com/s/files/1/0434/2834/8056/files/sovolirakiroruvezopis.pdf
- https://cdn.shopify.com/s/files/1/0438/9512/8216/files/44978770079.pdf
- https://cdn.shopify.com/s/files/1/0428/8829/8659/files/jikukanagajezuwirodenapa.pdf
- https://cdn.shopify.com/s/files/1/0430/7307/7409/files/betuvujilafibamu.pdf
- https://cdn.shopify.com/s/files/1/0430/8008/9760/files/32520235600.pdf
- https://cdn.shopify.com/s/files/1/0428/5644/8156/files/18408444639.pdf
- https://cdn.shopify.com/s/files/1/0434/7723/7917/files/dapukevujasuwegi.pdf
- https://cdn.shopify.com/s/files/1/0429/1140/0102/files/lefenom.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 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00005f8e.bin` `7128a10838f71bcbfdc7db1188c746bb6459b05da76370cbf445c4ae8df9e5db`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5F8E	4420 bytes
`font_01_sfnt_off00006ea9.bin` `3e12b9644a2ddad8319eb4a935e32e35d51f74ea52c49504c72dbde82b30eab9`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6EA9	10388 bytes
`font_02_sfnt_off00009226.bin` `ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9226	4324 bytes

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