PDF malware analysis — malicious · c61474e4b79e224d

MALICIOUS

PDF

43.2 KB Created: 2020-09-01 15:16:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: f50cc7b661854b8382edeed2c8c1a632 SHA-1: 68cded33c4bb148cbdde3be28f4b6316e534570a SHA-256: c61474e4b79e224d58dcab9eef55dcf5e5d0fc8ae4ad212b47e2ce4ec92b1c36

160 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded links, many pointing to Shopify domains, likely as part of a link farm for SEO poisoning. One critical heuristic identified a link to a known malicious redirector at https://ttraff.ru/wix?keyword=macromedia+dreamweaver+for+php. Another heuristic indicates the document attempts to lure the user into executing commands via the clipboard. The document body is heavily obfuscated but contains the malicious URL.

Heuristics 4

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.
Clipboard command execution lure high SE_CLIPBOARD_COMMAND_LURE

Document tells the user to copy or paste clipboard content into Run, PowerShell, cmd, or another shell-like execution context
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.ru/wix?keyword=macromedia+dreamweaver+for+php
- https://cdn.shopify.com/s/files/1/0434/3247/6838/files/dapugufivo.pdf
- https://cdn.shopify.com/s/files/1/0435/5286/6467/files/mutejogun.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kenawuvotijogajutimev.pdf
- https://cdn.shopify.com/s/files/1/0437/0166/5960/files/neoliberalismo_histria_e_implicaes.pdf
- https://cdn.shopify.com/s/files/1/0437/6159/8616/files/how_to_create_a_discord_server.pdf
- https://cdn.shopify.com/s/files/1/0433/0841/7192/files/tesis_sobre_acoso_escolar.pdf
- https://cdn.shopify.com/s/files/1/0428/4992/7327/files/gufexujusekemilikoked.pdf
- https://static.usrfiles.com/ugd/b8c837_136a7fb3610b45b89b3d2de77bad39f3.pdf
- https://static.usrfiles.com/ugd/ac72e0_72d64b2c85fb42ea9a928108203a1ee8.pdf
- https://static.usrfiles.com/ugd/a64c8c_9895fdb84a2e4c818041b9f19406a476.pdf
- https://static.usrfiles.com/ugd/cdb50c_7a93cea9fbf9476bbcf9024672fe6696.pdf
- https://static.usrfiles.com/ugd/1849a1_4ef02a53836d490f98b08d230362cac5.pdf
- https://cdn.shopify.com/s/files/1/0434/3840/7832/files/business_model_generation_alexander_osterwalder.pdf
- https://cdn.shopify.com/s/files/1/0440/1194/6134/files/vokerosozaluxumajugesuwol.pdf
- https://cdn.shopify.com/s/files/1/0437/5861/6733/files/dumakixemumite.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_off00006862.bin` `45b0e8b42704420e11574d0e42d6725ee34f3bdc3450d805b2e4e5dacfe73139`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6862	5344 bytes
`font_01_sfnt_off00007a8d.bin` `e2a6e592b8407f8810050c7bdd1ffb97b0ee5570f51e44ff810d921c89bb94db`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7A8D	11268 bytes

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