PDF malware analysis — malicious · e2bb9524f23bb0ad

MALICIOUS

PDF

50.3 KB Created: 2020-08-31 00:30:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 5333fafd4fb4670166c0d200dc1eb129 SHA-1: e108924774018ec7786d942524f831468ff3f17d SHA-256: e2bb9524f23bb0adddd89c15eba5abc04725f4cb4f97b5c0f34d4039fe243a30

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded links, many of which point to a link farm hosted on Shopify. One of these links, 'https://ttraff.cc/wix?keyword=dieta+sin+lactosa+fructosa+ni+sorbitol', is identified as a malicious redirector. The document body, though heavily obfuscated, appears to contain text related to diet, likely serving as a lure to disguise the malicious intent of redirecting users to harmful sites.

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=dieta+sin+lactosa+fructosa+ni+sorbitol
- https://static.usrf
- https://cdn.shopify.com/s/files/1/0432/1450/4093/files/chundari_penne_song_kuttywap.pdf
- https://cdn.shopify.com/s/files/1/0431/2875/0234/files/vesaditesafosejito.pdf
- https://cdn.shopify.com/s/files/1/0451/9981/8903/files/educational_psychologist_report_example_uk.pdf
- https://cdn.shopify.com/s/files/1/0436/1040/7069/files/40558906877.pdf
- https://static.usrfiles.com/ugd/b8bbd7_2445e1d5b2d149cdaacaf9e490e074c0.pdf
- https://static.usrfiles.com/ugd/217d68_5a19ba3e97734b0eab9b9c560f1c9b58.pdf
- https://static.usrfiles.com/ugd/5b9a87_00f6f9229fed43a5864f97fec8670d11.pdf
- https://static.usrfiles.com/ugd/b8c837_59343a23c8c142e099bce8d6b319adda.pdf
- https://static.usrfiles.com/ugd/1a89c8_f0f6dcb3726d47cfa9d5a1ef62cf94a7.pdf
- https://static.usrfiles.com/ugd/b8c837_222507c7f79c4b5098767eedd9a08b32.pdf
- https://static.usrfiles.com/ugd/01bc73_b7c091f4a741466daff63ffdfe23abbc.pdf
- https://static.usrfiles.com/ugd/b7ab08_17492dd85b6e4ad084a9b3edc05cd45e.pdf
- https://static.usrfiles.com/ugd/b8c837_4ecfa0cfb9e34e1caf6f2caeb2cb374d.pdf
- https://static.usrfiles.com/ugd/516574_b16ab9e033ee424384c9adfd39740949.pdf
- https://static.usrfiles.com/ugd/111c46_6bc5b1a1522a4bf4a049b16a549357b6.pdf
- https://static.usrfiles.com/ugd/33a2e4_66053e78da884611b58ac369463ba1d1.pdf
- https://static.usrfiles.com/ugd/bd5c68_ac309848ee8a4238b2857c3117904017.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_off00008298.bin` `08e64eec47a8fbdf494eb067150177845bcf3205abed9c88e8831f704439dbe8`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8298	5012 bytes
`font_01_sfnt_off000093ac.bin` `952b8b1b613c645051d79d13b9edc2bcd10b5a91a763b4cd8cb961bf246fbdb7`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x93AC	11976 bytes

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