PDF malware analysis — malicious · 1b838470d9fb8e00

MALICIOUS

PDF

43.0 KB Created: 2020-08-29 09:50:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 6f79506f2a15df9328d0a5f27d5dde21 SHA-1: 5fd2f1bb765c07df474933c635742a1840c054bf SHA-256: 1b838470d9fb8e0095c6a6075205406841d7c53e3966039fd53161c1fe3e25cb

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file exhibits characteristics of a link farm, with numerous embedded URLs. One critical heuristic identifies a link to a known malicious redirector at 'https://ttraff.com/wix?keyword=the+most+dangerous+game+anticipation'. The document body, though heavily obfuscated, also contains this URL and other links pointing to benign-looking PDFs hosted on Shopify. The primary attack pattern appears to be the distribution of malicious links within a PDF document, likely for phishing or malware delivery.

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=the+most+dangerous+game+anticipation
- https://static.usrfiles.com/ugd/b8c837_7db30c22d794484f9432cd9a2a448ddc.pdf
- https://static.usrfiles.com/ugd/b8c837_5f7cf313d14c4353b1e5a6a49c102a40.pdf
- https://static.usrfiles.com/ugd/b8c837_5ac3ee028dd74febb13802a87a7de7f6.pdf
- https://static.usrfiles.com/ugd/b8c837_aab46271fa4b4c2c8da4aa8f71a5113e.pdf
- https://cdn.shopify.com/s/files/1/0432/5530/0249/files/batakamuweparo.pdf
- https://cdn.shopify.com/s/files/1/0443/9402/1030/files/31951998540.pdf
- https://cdn.shopify.com/s/files/1/0432/8760/9497/files/xafer.pdf
- https://cdn.shopify.com/s/files/1/0432/8580/7268/files/18441309320.pdf
- https://cdn.shopify.com/s/files/1/0431/2127/9132/files/install_gcc_ubuntu.pdf
- https://cdn.shopify.com/s/files/1/0435/3110/8504/files/49611942116.pdf
- https://cdn.shopify.com/s/files/1/0435/4303/6053/files/bioterrorism_prevention.pdf
- https://cdn.shopify.com/s/files/1/0429/7441/2949/files/nepapatukuladijufifis.pdf
- https://cdn.shopify.com/s/files/1/0432/9055/8620/files/gaxijekepovivakuri.pdf
- https://cdn.shopify.com/s/files/1/0432/2089/3851/files/c_byte_array_to_file.pdf
- https://cdn.shopify.com/s/files/1/0430/4614/2114/files/tesuxukinidekikutimixab.pdf
- https://cdn.shopify.com/s/files/1/0437/8093/1742/files/24422042624.pdf
- https://cdn.shopify.com/s/files/1/0431/6397/5835/files/22297533161.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_off0000626c.bin` `317e28a54c3732e826ece76a6d46faa4613ea2f1602ffa812d863667c9196999`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x626C	5404 bytes
`font_01_sfnt_off000074a4.bin` `5e120ee7c9f1930bd8fe8625fa72e6f10074c4c93ebd569f683abd7e5cf82ca3`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x74A4	13472 bytes

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