PDF malware analysis — malicious · c744f0f926520cc4

MALICIOUS

PDF

123.4 KB Created: 2020-08-31 07:11:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: b37a89cf57a92433f2fddc58f08b3e5b SHA-1: ff660587cb3da0af4cd4c8e5c0783de80f004658 SHA-256: c744f0f926520cc42685efb96da02c1773fbbc0e704c283e1a07c7c90b8ca27d

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a link to a known malicious redirector, ttraff.ru, which is likely used to direct users to further malicious content. The document body, though heavily obfuscated, contains text related to 'Dragon Ball Z' and the redirector URL, suggesting a lure to entice clicks. The presence of multiple embedded links and the ML classifier's high confidence further support the malicious nature of this document.

Machine Learning

Nyx PDF Classifier malicious score 0.9999

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=dragon+ball+z+complete+series+free+d
- https://static.usrfiles.com/ugd/fd3290_4419f81878684743b357c5474f09decb.pdf
- https://static.usrfiles.com/ugd/b8c837_614345f4df674ab5bdd4266c150813d2.pdf
- https://static.usrfiles.com/ugd/07625c_78c1bc770675417cb04351071e7d85c1.pdf
- https://static.usrfiles.com/ugd/66c878_8d6dfeffc00a43ac919c50bef951a518.pdf
- https://static.usrfiles.com/ugd/5ecadc_075dc3a589b64f66a895260d56faf5f7.pdf
- https://cdn.shopify.com/s/files/1/0430/4211/1650/files/48945939595.pdf
- https://cdn.shopify.com/s/files/1/0438/2277/6480/files/29886537454.pdf
- https://cdn.shopify.com/s/files/1/0437/1388/8405/files/weider_home_gym_models.pdf
- https://static.usrfiles.com/ugd/97368a_60ed1e62eeaf418a875565c52037ca58.pdf
- https://static.usrfiles.com/ugd/b8c837_6284ee5ef7f74cc293fa6d99cbb42d45.pdf
- https://static.usrfiles.com/ugd/3bca44_19aaadf0cc0b4fe28ae4c233f53a9cb2.pdf
- https://static.usrfiles.com/ugd/b8c837_2fe6e23ca9a04f1699d0d53e64c6856c.pdf
- https://static.usrfiles.com/ugd/5b9a87_d06b5310dc04461e81853c5dde69c221.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_off000120a6.bin` `bce7a2edc529c5ebe54a875ebb084fd30d75a919122223f7f14711ddd5880fed`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x120A6	40000 bytes
`font_01_sfnt_off00019b49.bin` `22b2f9804933fb3f0ce6463dc5d797eb3fb5f20fe83ccce12af36e27072f8559`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x19B49	5664 bytes
`font_02_sfnt_off0001ae70.bin` `a1c68180eae955d710b1f59d89b7b5bb1f22246194deffa7b9c3298859733f9b`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x1AE70	2140 bytes
`font_03_sfnt_off0001b848.bin` `975c1bb62a16007d1347a212ff4d6c7195d5a174e08cec71f0b36627c55dad5a`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x1B848	11584 bytes

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