PDF malware analysis — malicious · eefeda4f815cf68d

MALICIOUS

PDF

54.2 KB Created: 2020-09-06 19:00:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 0ff66393c679c2bcfd1a77ce271f1ba5 SHA-1: 5831d53040739dfa89c10872b81e4f6a3b00ed4e SHA-256: eefeda4f815cf68d69cd285a14ed70f7cb34d26d10edee37636afa1bfacb5399

160 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a critical heuristic indicating it's a malicious redirector link, specifically pointing to a URL designed to lure users with a 'cheque book issue letter format' pretext. This aligns with a Business Email Compromise (BEC) pattern, aiming to trick recipients into clicking the link. The file also exhibits a PDF link farm, suggesting an attempt to distribute malicious content or engage in SEO manipulation for phishing. No scripts were extracted, but the presence of a malicious redirector and the lure content strongly suggest a phishing or BEC attack.

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.
Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LURE

Document describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise 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.link/wix?keyword=cheque+book+issue+letter+format+in+word
- https://static.usrfiles.com/ugd/cf79db_ff87dbeacab14060bc3bd62ffe2b5071.pdf
- https://static.usrfiles.com/ugd/62e2c1_340b53e9c3f944788f4123d4dc05bff8.pdf
- https://static.usrfiles.com/ugd/4b874d_d379b77ea8d24875837b0e6359f77999.pdf
- https://static.usrfiles.com/ugd/822ecd_5bfe9f7060a64d8483f63782daed0a9e.pdf
- https://cdn.shopify.com/s/files/1/0431/5011/4967/files/jevuvilozuxiza.pdf
- https://cdn.shopify.com/s/files/1/0430/3880/2073/files/tudabosawarogedoduzi.pdf
- https://cdn.shopify.com/s/files/1/0429/6065/0393/files/photoshop_touch_apk.pdf
- https://static.usrfiles.com/ugd/77941b_d3db8a9fb55c499380f94d3880e0d33c.pdf
- https://static.usrfiles.com/ugd/5ad03d_edb95da175924459939decdfebd75ee0.pdf
- https://static.usrfiles.com/ugd/eb4c03_99b6ce99bd4e48fc826798405aad4242.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 4

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00007ed0.bin` `b7f317aa0f29cd34df008dc84d8f376d2685882a57a4a5cd0d86477d0adf885a`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7ED0	2828 bytes
`font_01_sfnt_off000088cb.bin` `378840c85f958232ab665b55133534fb6ed8235226ef8bcc54d98195bc5f0ebd`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x88CB	5472 bytes
`font_02_sfnt_off00009b3f.bin` `707430020e729a661a4d495540dac1efd4ca14d114bc9e13e1d03e16c476e4ea`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9B3F	10184 bytes
`font_03_sfnt_off0000be6f.bin` `cbf5be0f84fb2bceb79c918233277645c8e8baea6abf833a9cc764b2e48ff54d`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xBE6F	3416 bytes

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