PDF malware analysis — malicious · b3a76102be90f521

MALICIOUS

PDF

43.1 KB Created: 2020-08-02 13:07:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 28699724a48ad36797bae33577dfe507 SHA-1: c622ad8b1c8013ba252894c1cf02f3ebfafc713a SHA-256: b3a76102be90f52106038a8edd6b4ccf67d735a39cdf2aa9f0751edd28782052

222 Risk Score

Malware Insights

MITRE ATT&CK

T1059 Command and Scripting Interpreter T1204 User Execution

The PDF contains a link farm and a malicious redirector pointing to 'ttraff.com', which is a known malicious domain. The document body and heuristics indicate a lure to recover secrets or private keys, and explicitly instruct the user to copy/paste content into a shell. This suggests an attempt to trick the user into revealing sensitive information or executing malicious commands, likely for credential harvesting or further system compromise.

Heuristics 5

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.
Recovery secret / private key request critical SE_SECRET_RECOVERY_LURE

Document requests recovery phrases, private keys, backup codes, or saved passwords. Requests for these secrets in a document are high-risk.
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.com/pify?keyword=ssh+into+virtualbox+mac
- http://files.sealylionsclub.com/uploads/1/3/1/4/131453588/39d45fb8eb5f.pdf
- http://files.marianeth.com/uploads/1/3/1/4/131410479/gabebosuni.pdf
- http://files.joyinthesmallthings.ca/uploads/1/3/1/0/131071067/241d60a860.pdf
- https://cdn.shopify.com/s/files/1/0430/1085/0979/files/sipamurozixojidir.pdf
- https://cdn.shopify.com/s/files/1/0440/4133/9030/files/gta_v_addon_peds.pdf
- https://cdn.shopify.com/s/files/1/0429/6015/8873/files/55293859591.pdf
- https://cdn.shopify.com/s/files/1/0428/8688/9639/files/moxikamafowubilivelikiju.pdf
- https://cdn.shopify.com/s/files/1/0436/0614/7230/files/19679236996.pdf
- https://cdn.shopify.com/s/files/1/0439/9444/8030/files/kesozobe.pdf
- https://cdn.shopify.com/s/files/1/0430/9378/6791/files/zorixiparolu.pdf
- https://cdn.shopify.com/s/files/1/0431/9746/4731/files/78666635785.pdf
- https://cdn.shopify.com/s/files/1/0431/9140/2660/files/67910232291.pdf
- https://cdn.shopify.com/s/files/1/0431/1311/9905/files/28684715870.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_off000068a2.bin` `0f935a90475ac0c0687f8e353387dad66e57880b211a0e20c23a7e5b9be0501e`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x68A2	5412 bytes
`font_01_sfnt_off00007ae7.bin` `5d1e3d753e2dee2aa4f01e1c38894dd629f98cb338e2ae4fff83223654fa36f1`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7AE7	10704 bytes

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