PDF malware analysis — malicious · 1ff7ee47f7615d3c

MALICIOUS

PDF

42.2 KB Created: 2020-08-30 05:57:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 5f0846ad18ec2dccc4be434a9f15153b SHA-1: 44af7f6ae2a45fdabe54d64c1115ca28dd13a2dc SHA-256: 1ff7ee47f7615d3cce7bbd7874acdbda6c6edd94ae6dc68408e4a077b8b24013

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a significant number of embedded links, identified as a link farm. One of these links, 'https://ttraff.com/wix?keyword=comparador+de+ventana+lm339', points to known malicious redirector infrastructure. The document body, though heavily obfuscated, also contains this URL, suggesting it is the primary lure. The presence of numerous other links to 'static.usrfiles.com' indicates a coordinated effort to distribute content, likely malicious.

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.com/wix?keyword=comparador+de+ventana+lm339
- https://static.usrfiles.com/ugd/fd30ac_fc05a206d7a84d239c2708cc3ffce3fe.pdf
- https://static.usrfiles.com/ugd/b8c837_ea840c07449841309ba662df1533cf19.pdf
- https://static.usrfiles.com/ugd/b8c837_d8c547cbf4ad45df9bf4e94c2775807b.pdf
- https://static.usrfiles.com/ugd/fa6f14_c0078e80be3340899b30916f467b96ba.pdf
- https://static.usrfiles.com/ugd/9f6a24_356ada9ae58c4eca97020be796120331.pdf
- https://static.usrfiles.com/ugd/ce0e6d_7951c408ef8b47daa8713980bd5f3cea.pdf
- https://static.usrfiles.com/ugd/b8c837_a7318f5f86d74ce6b90b071dcefc3fb6.pdf
- https://static.usrfiles.com/ugd/756799_00d6648c9bbb40b2a8f3928021f25298.pdf
- https://static.usrfiles.com/ugd/b8c837_83f05633342643548e1a060c9763ae51.pdf
- https://static.usrfiles.com/ugd/b8c837_ee0a549f8692443f815821bb22e3288c.pdf
- https://static.usrfiles.com/ugd/837d34_b68cde96ed854d289f258a97dd1bd469.pdf
- https://static.usrfiles.com/ugd/dad90e_592d9e95676048fb8a71f6981067f425.pdf
- https://static.usrfiles.com/ugd/a771bd_c3512f06e10144ab9f282b16d89b1150.pdf
- https://static.usrfiles.com/ugd/253000_0872909c4195437cac4ce3b9340d23f3.pdf
- https://static.usrfiles.com/ugd/cac9e4_44a35c173a7a4c499d6333a8191acff1.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_off000063be.bin` `33cc7b9a4a95f4627fadb4d578e194bf9c1a84e38282ae2013ac7c23681e711f`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x63BE	5212 bytes
`font_01_sfnt_off00007561.bin` `70af378605cfd44db0de9c322c21fd08f0d8519bf2bdc5a7b92a32baa74e331d`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7561	11472 bytes

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