PDF malware analysis — malicious · eecce79e45f71c02

MALICIOUS

PDF

47.7 KB Created: 2020-09-09 13:03:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 0080c39cf2d70b5092c4224b7f491c6b SHA-1: b2f7334be89e7cd8a2bf4d954388e9e481eb72a5 SHA-256: eecce79e45f71c020fd2f36e70a9845ef3351f82aa83706d98efeed9c56fe74b

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF was flagged by multiple critical heuristics for containing malicious redirector links and a link farm. The embedded URL points to 'ttraff.ru', a known malicious redirector. The document body, though heavily obfuscated, contains the same URL, reinforcing the malicious intent. The primary attack pattern involves luring users to malicious sites via these links.

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/wix?keyword=alveoloplasty+definition+pdf
- https://static.usrfiles.com/ugd/2eedf1_d1b1bb63e7084c1188191ece40ee9e86.pdf
- https://static.usrfiles.com/ugd/d9e9a0_85a367705d024d2091db06eb521c8846.pdf
- https://static.usrfiles.com/ugd/b916f4_9975055989b047a1925b1dd744faf6d2.pdf
- https://static.usrfiles.com/ugd/3649d2_b493b7c30f1642968e8fbe93a834d4f9.pdf
- https://static.usrfiles.com/ugd/5c9621_2f89221b650c4f82961adaca6a13be64.pdf
- https://static.usrfiles.com/ugd/67e251_8de3f5ecb24e41488d58c14841dd7ac5.pdf
- https://static.usrfiles.com/ugd/d55797_d8bb57478e72490bbe146f092602853f.pdf
- https://static.usrfiles.com/ugd/b8c837_fd95d354f52045b6937cb42309b17429.pdf
- https://static.usrfiles.com/ugd/1f6d71_8ba98f6c8e5147ba80cc7ab001811c99.pdf
- https://static.usrfiles.com/ugd/6cf392_8956156419e343a6a803b7ad20172503.pdf
- https://cdn.shopify.com/s/files/1/0460/7043/1908/files/15652112238.pdf
- https://cdn.shopify.com/s/files/1/0440/9714/2936/files/ambry_genetics_consent_forms.pdf
- https://cdn.shopify.com/s/files/1/0434/4306/0901/files/1996_honda_shadow_1100_manual.pdf
- https://static.usrfiles.com/ugd/46429b_40561558bf454fb195c14601242bd158.pdf
- https://static.usrfiles.com/ugd/9eb187_b6fc8f16333246ac96015b7e321dec6a.pdf
- https://static.usrfiles.com/ugd/b910ae_61679e4a3a13491fab5a6dd84fc55acb.pdf
- https://static.usrfiles.com/ugd/8d5d69_e98b257445214464a3a55265b75d925b.pdf
- https://static.usrfiles.com/ugd/a48928_09e9aaf6dc144caaa634f85b2f0d5550.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/
- https://static.usrfiles.com/ugd/2eedf1_d1b1bb63e7084c1

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00007ddd.bin` `d101775b9e5298e9ada45cec0a430dfc3000e87d7e04d4fd6a68d3fd67ac03e8`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7DDD	5092 bytes
`font_01_sfnt_off00008f58.bin` `830ee1254aeffb6a1e98e60e10126b8f09a90e180dfd53fdba982133b1c10cf0`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8F58	9940 bytes

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