PDF malware analysis — malicious · d11ecb867957a011

MALICIOUS

PDF

31.6 KB Created: 2020-09-04 12:27:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 7af82eb24ecf748954a2d84c359660fd SHA-1: 25c1bbc6469e3ddc3e5a52fced97e78450ac395a SHA-256: d11ecb867957a011a1e242b12bfd751d1096d4396b10c43fc4f1e1ba62867649

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a link to a known malicious redirector, ttraff.link, which is designed to lure users to malicious sites. The document body, though heavily obfuscated, contains the same URL and references to 'white laminate veneer sheets', suggesting a deceptive lure. The presence of numerous other PDF links, many pointing to static.usrfiles.com, indicates a link farm strategy, likely to improve search engine ranking for malicious content.

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.link/wix?keyword=white+laminate+veneer+sheets
- https://static.usrfiles.com/ugd/b8c837_d5254cda8ee940a693c157be1c2482af.pdf
- https://static.usrfiles.com/ugd/d1c05f_e9bd7d4194e445ff9c426f3094a18c08.pdf
- https://static.usrfiles.com/ugd/6a4619_8be9fbb685e04d589f751291a6391c42.pdf
- https://static.usrfiles.com/ugd/7dd30d_9925805b5ea8499ba625db68952f6fd8.pdf
- https://static.usrfiles.com/ugd/66f3f9_6c5db1c06d644a8484e6e8640e2ee0ea.pdf
- https://static.usrfiles.com/ugd/696b8a_33fa50ac6fd6472d94b3ce797e5208e5.pdf
- https://static.usrfiles.com/ugd/3e9e83_fb31b3b93eda4932a15c7542392584c9.pdf
- https://static.usrfiles.com/ugd/b8c837_849ea72b66b94d2296ea6375bc26e85b.pdf
- https://static.usrfiles.com/ugd/754d94_c1807308a954412c8426640f68b6ddbe.pdf
- https://cdn.shopify.com/s/files/1/0434/7258/4870/files/tajawesofipofetasepuraros.pdf
- https://cdn.shopify.com/s/files/1/0437/8116/1111/files/49757663810.pdf
- https://cdn.shopify.com/s/files/1/0435/2281/8200/files/76654149174.pdf
- https://cdn.shopify.com/s/files/1/0428/9154/2681/files/11956810266.pdf
- https://static.usrfiles.com/ugd/b8c837_60c32697e40e47429aa316643a28fa53.pdf
- https://static.usrfiles.com/ugd/98857b_d0a5c5853fee45cfbd8aaa0108daccb9.pdf
- https://static.usrfiles.com/ugd/0511f5_a2a0217e17b542719a2c3a6ff6821441.pdf
- https://static.usrfiles.com/ugd/b8c837_855f1828950c49308e396aa98137963a.pdf
- https://static.usrfiles.com/ugd/aaaf79_8aac97b1d84c45b5933275cfe241da8c.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 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off000043a8.bin` `9b3a377c0eef9db8908f58b722ac6f469d9b2065813685d3b13fec93f9c05d1a`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x43A8	4996 bytes
`font_01_sfnt_off00005484.bin` `138dfd0f94d426054d5b7d08ef963cc0ef27f151c08ce82cd828f3610f4a7f84`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5484	8592 bytes

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