PDF malware analysis — malicious · a708683f7e7b77a3

MALICIOUS

PDF

39.8 KB Created: 2020-08-29 21:15:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 3dc2df6a5ab1d4da562f89a338d5e51f SHA-1: 60657ded15cdb3a4f3c3a14e39475dd7f3e5f432 SHA-256: a708683f7e7b77a30067f082444071b4af598146d6049a6de09dec0895ef0997

160 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.ru'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded URLs. The document also contains a lure to execute commands via the clipboard, suggesting an attempt to trick the user into running malicious code. No scripts were extracted, but the combination of a malicious redirector and a link farm strongly indicates an attempt to lead the user to a malicious site.

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=ghostbusters+the+video+game+trophy+g
- https://static.usrfiles.com/ugd/b8c837_a5fdf1e2391744ed851fe6f5b12bb720.pdf
- https://static.usrfiles.com/ugd/b8c837_9111885aa33d4c6ead162a81e014f658.pdf
- https://static.usrfiles.com/ugd/b8c837_0019bec7fe5d4706b2cf7941c50487ad.pdf
- https://static.usrfiles.com/ugd/565485_5cbdc8221a32472fa9107f9f389f61a1.pdf
- https://static.usrfiles.com/ugd/f0f215_57960adb343c4895a6370d3f164ba22d.pdf
- https://cdn.shopify.com/s/files/1/0429/1146/5638/files/number_in_english_worksheets.pdf
- https://cdn.shopify.com/s/files/1/0430/8379/2548/files/uniform_cost_search_java_code.pdf
- https://cdn.shopify.com/s/files/1/0429/6278/0311/files/juvatunevejiwerixopo.pdf
- https://cdn.shopify.com/s/files/1/0434/7386/2808/files/fakesuxobiliru.pdf
- https://static.usrfiles.com/ugd/b8c837_fb5060f414fa44a087299213ea30f6b9.pdf
- https://static.usrfiles.com/ugd/b8c837_ec1581671e9f4cbabdd2bf6ea3278440.pdf
- https://static.usrfiles.com/ugd/7e0eb0_0d050c474d234fe1aabf25e93918dd81.pdf
- https://cdn.shopify.com/s/files/1/0434/6265/6152/files/31281838434.pdf
- https://cdn.shopify.com/s/files/1/0432/0811/4340/files/xibeg.pdf
- https://cdn.shopify.com/s/files/1/0431/2806/2109/files/48514527338.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_off00005b25.bin` `5f3ca1b76779d80b4560d71cf884eb2495c590531252c3d50e2ebcc6e9e10069`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5B25	5672 bytes
`font_01_sfnt_off00006e57.bin` `28479c0cf1110843d6a51c7b1e0c69673a0b857c78d85b8571961c815ea67858`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6E57	10380 bytes

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