PDF malware analysis — malicious · ed27a6e270b003ad

MALICIOUS

PDF

46.2 KB Created: 2020-09-01 07:47:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 0df81f6ea88f6ca01ae916253cae57f8 SHA-1: 46501b46520d89e226f68e14dbde9064a3b66cd1 SHA-256: ed27a6e270b003adb1781e08bde4b24f09786fc7a28fae7641ddd2bf67bf2c3c

128 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.ru/wix?keyword=project+execution+plan+template+free'. Additionally, it exhibits characteristics of a PDF link farm, with numerous external links, many hosted on 'static.usrfiles.com'. The presence of a 'download button' lure suggests a social engineering attempt to trick the user into clicking the malicious link. No scripts were extracted, and the document body is heavily obfuscated, but the primary attack vector appears to be redirection 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.
Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON

Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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=project+execution+plan+template+free
- https://static.usrfiles.com/ugd/33ab24_9e49c703953441f9891f944db4dab6e7.pdf
- https://static.usrfiles.com/ugd/5bb01c_b30ce453f53348c8831797c5a3c86463.pdf
- https://static.usrfiles.com/ugd/07e02c_1b9814f9750444e8827f4dc77349bccc.pdf
- https://static.usrfiles.com/ugd/ee9d3f_0d981cd4e18247c5b2834b7652881eff.pdf
- https://static.usrfiles.com/ugd/b8c837_99223cab84a5456c9afdc6adb5b0ca2a.pdf
- https://static.usrfiles.com/ugd/54fa57_dc52cb383aad46b8b4301b4b03afa13c.pdf
- https://cdn.shopify.com/s/files/1/0428/9619/5737/files/11595422669.pdf
- https://cdn.shopify.com/s/files/1/0430/7389/6602/files/30978661673.pdf
- https://cdn.shopify.com/s/files/1/0437/4380/5594/files/71719513512.pdf
- https://cdn.shopify.com/s/files/1/0439/3802/1544/files/car_battery_charger_circuit_diagram.pdf
- https://static.usrfiles.com/ugd/b8c837_16a9ef25f3be47588016194cdd8ca507.pdf
- https://static.usrfiles.com/ugd/ba3095_9218ad6f5e7b417f81e6d3fcf7e3be7f.pdf
- https://static.usrfiles.com/ugd/bd5c68_1c7c9de99e02493ab66841b970dc99ad.pdf
- https://static.usrfiles.com/ugd/b8c837_82d1aec97a9741bb9f23b1b8250a3e55.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_off000077a3.bin` `e1665b92d945dd6d5852aeec8dd58edc69a4eecabb25c2616b79f9ddffae4c56`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x77A3	5128 bytes
`font_01_sfnt_off0000890c.bin` `6929a91adecff63d7ba69d6af29fbd8ec3511ac176bbc221f2841591c18f34b2`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x890C	10268 bytes

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