PDF malware analysis — malicious · 8df9da0dcda54010

MALICIOUS

PDF

48.5 KB Created: 2020-09-06 12:23:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 62201f98cbf3ee1f957ce241c0b58457 SHA-1: fb603c1ee393ee3c386d1b6bb0ec1bd883f40909 SHA-256: 8df9da0dcda54010090ed9146626cb15564968684232573a7244ed71a99441d7

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a heuristic firing for a malicious redirector link, which is also present in the document body. This link, 'https://ttraff.link/wix?keyword=mla+citation+website+article+format', is designed to redirect users to potentially harmful content. The file also exhibits characteristics of a link farm, with numerous embedded URLs pointing to external PDF documents, likely an attempt to manipulate search engine results or distribute further malicious content. The primary attack vector appears to be social engineering through a deceptive link.

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=mla+citation+website+article+format
- https://static.usrfiles.com/ugd/19103d_48bac616d42748ff9b7c5a1bcc11c2ec.pdf
- https://static.usrfiles.com/ugd/d01287_80eb5a597fb24c3fb9c55654b380cc32.pdf
- https://static.usrfiles.com/ugd/b8c837_3fd14edd0c424e399f80c1a2b0f6c6e0.pdf
- https://static.usrfiles.com/ugd/1e4819_9e6ada170370439c8a353af2f1897174.pdf
- https://static.usrfiles.com/ugd/724bd4_c57db1bad9244aa3ae2ec7f7b9cc04b3.pdf
- https://cdn.shopify.com/s/files/1/0435/7118/3777/files/embroidery_patterns_for_beginners.pdf
- https://cdn.shopify.com/s/files/1/0433/6628/5462/files/55235465009.pdf
- https://cdn.shopify.com/s/files/1/0428/5890/5759/files/57190442095.pdf
- https://cdn.shopify.com/s/files/1/0433/9151/6828/files/68375931724.pdf
- https://cdn.shopify.com/s/files/1/0427/4959/1718/files/juicy_stakes_poker.pdf
- https://cdn.shopify.com/s/files/1/0437/7991/5937/files/zawuximum.pdf
- https://static.usrfiles.com/ugd/3aca14_c9de90be9f34453d8b1ba8c149547f5f.pdf
- https://static.usrfiles.com/ugd/7c1f05_403fdc2b6437434787d5bec11b66865b.pdf
- https://static.usrfiles.com/ugd/e1d12c_d96f88b1916a4f85a0cde96a8a80a6ee.pdf
- https://static.usrfiles.com/ugd/37428b_3fa92e16ef0c464bae2f75511fb7230b.pdf
- https://static.usrfiles.com/ugd/bb13a2_e243533611894b1995da4a03a8fd1fb2.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_off00007f0a.bin` `4b77d0a1e21823ace7c06fa3264c1486061a802f60b069043d133054e78f1834`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7F0A	5264 bytes
`font_01_sfnt_off000090f5.bin` `a43676c135fa332ff2bd9d5a6614912409d67874487e40488c2567a62f999392`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x90F5	10616 bytes

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