PDF malware analysis — malicious · f6da4606bd693fb2

MALICIOUS

PDF

53.3 KB Created: 2020-08-31 04:26:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: b4c1c7efed2b29098887a31a5e01f546 SHA-1: 23980f539e5801a441ae7ded86226d59c9e1c547 SHA-256: f6da4606bd693fb2e7e688750939e799e83edcddae32c3dcab6451eeaaad28e1

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a heuristic firing for a malicious redirector link, which points to 'https://ttraff.cc/wix?keyword=pokemon+ash+x+bonnie+lemon'. This URL is presented within the document body, suggesting a social engineering lure. The PDF also contains a large number of external links, many hosted on Shopify, indicating a link farm strategy. The ML classifier strongly flagged this PDF as malicious.

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.cc/wix?keyword=pokemon+ash+x+bonnie+lemon
- https://cdn.shopify.com/s/files/1/0432/0965/4434/files/76746245084.pdf
- https://cdn.shopify.com/s/files/1/0430/8706/9348/files/jspdf_html_to.pdf
- https://cdn.shopify.com/s/files/1/0437/3640/0037/files/55483029843.pdf
- https://cdn.shopify.com/s/files/1/0430/0223/2983/files/28070690353.pdf
- https://cdn.shopify.com/s/files/1/0430/9948/8410/files/96599859476.pdf
- https://cdn.shopify.com/s/files/1/0432/9901/2766/files/92569960590.pdf
- https://cdn.shopify.com/s/files/1/0434/2880/6808/files/nubujujo.pdf
- https://cdn.shopify.com/s/files/1/0438/6953/6411/files/datupaxusu.pdf
- https://cdn.shopify.com/s/files/1/0437/4436/2647/files/zugos.pdf
- https://cdn.shopify.com/s/files/1/0435/5594/6647/files/discrete_mathematics_and_its_applications_7th_edition.pdf
- https://cdn.shopify.com/s/files/1/0435/0679/4656/files/enlaces_ionicos.pdf
- https://cdn.shopify.com/s/files/1/0435/6970/9217/files/buvunivopuxupifakovu.pdf
- https://cdn.shopify.com/s/files/1/0438/2257/9869/files/61080850112.pdf
- https://cdn.shopify.com/s/files/1/0428/7689/5398/files/bbl_fixture.pdf
- https://static.usrfiles.com/ugd/b8c837_bbc11f2d3e3a4b10820ca7c305db3b2b.pdf
- https://static.usrfiles.com/ugd/12745a_aa51a1ff5982416bb7ba1d4da8693b8f.pdf
- https://static.usrfiles.com/ugd/d54300_42e80c383b5640eb92ee6042543699b0.pdf
- https://static.usrfiles.com/ugd/b47706_42dcf1f6d93544f2a65fa51d74a3ca9b.pdf
- https://static.usrfiles.com/ugd/a4e402_fd784d8c9072404a9d091da4953045f1.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_off00009417.bin` `4afd0321986ad2aff2450ddf8df1066dc341cf0f08ed27dace4e70f93cb90ed3`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9417	5104 bytes
`font_01_sfnt_off0000a54d.bin` `9ef2ec9e395a9a2d786f468b4549ff4500c7454999684cbaa378c692aaccb5af`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xA54D	10192 bytes

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