PDF malware analysis — malicious · 2b78de20b83fda8c

MALICIOUS

PDF

49.4 KB Created: 2020-09-09 09:01:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: b965d40cebd165bb1dccb901224a232a SHA-1: 03322f9ab18290be76739a5c86138426a8f0608b SHA-256: 2b78de20b83fda8cb6d253d20e3108eb25b6466ab862a1ee25a6273a18f2b4cf

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.club/pify?keyword=button+badge+design+template'. This URL is likely used to redirect users to malicious content, disguised as a design template. The document body, though heavily obfuscated, also contains this URL, reinforcing the lure. The ML classifier also flagged this PDF with high confidence.

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.club/pify?keyword=button+badge+design+template
- https://static.usrfiles.com/ugd/b8c837_110147b973d3491b885b5105fb3fb8b9.pdf
- https://static.usrfiles.com/ugd/4f270c_d0be8246d242481caaf008d915c5fbfd.pdf
- https://static.usrfiles.com/ugd/902d29_43d5f797e3324cb0b4ab3d1f0d621c52.pdf
- https://static.usrfiles.com/ugd/33c377_21e05ee8c39b4cf8962ded0effe87351.pdf
- https://static.usrfiles.com/ugd/b8c837_965c8c0373814048ad8d9eb9b11ac205.pdf
- https://static.usrfiles.com/ugd/f84671_c201ca08459e4d16a544d080a620c1ad.pdf
- https://static.usrfiles.com/ugd/9c43ec_9fd22f78800b4b8da9be0526285f7ff3.pdf
- https://static.usrfiles.com/ugd/ee6770_d74daf7746914a038a47e2e7a49732b3.pdf
- https://static.usrfiles.com/ugd/808d8c_9eb03a06bc1743698d31d9cdfe4bc792.pdf
- https://static.usrfiles.com/ugd/a86d68_66ede66aac9d4c84b429d4fbf0d9c6c7.pdf
- https://static.usrfiles.com/ugd/83d902_3f3ac03942df472298344f2c2ce68693.pdf
- https://static.usrfiles.com/ugd/b9801a_1a574e7f8bd14ca5861031238b68b5a4.pdf
- https://static.usrfiles.com/ugd/fd4c29_0d5152ef36c847fabeb3dc4bc74ba4b7.pdf
- https://cdn.shopify.com/s/files/1/0437/4737/7301/files/jugutoref.pdf
- https://cdn.shopify.com/s/files/1/0431/4998/3905/files/nofotuposev.pdf
- https://cdn.shopify.com/s/files/1/0431/7875/4199/files/24498620325.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_off0000626f.bin` `3f3ddcd3380db243d138f43b6e9944c207ca1573dcdca14811e43ba60ca1d3e8`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x626F	5372 bytes
`font_01_sfnt_off0000749e.bin` `dfb8bff7e5e99696305b17933294eeab0c44ca148eca2885d20f450771f522ff`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x749E	13892 bytes
`font_02_sfnt_off0000a0d8.bin` `532315dfdc59b350d447ad91845dd8cc72a836e684f536ab9a4305dc5b53fb8e`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xA0D8	16204 bytes

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