PDF malware analysis — malicious · da7fa4cfbaf1a606

MALICIOUS

PDF

42.4 KB Created: 2020-09-06 23:38:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: c21c453b8f6c4b289097cfff050243e2 SHA-1: e2f4b8060515896e6df0c10c00a776d2a61257de SHA-256: da7fa4cfbaf1a606cc7cc283fc221b812c0aafa9c50f7f2b7549b799a758fb42

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded links, many of which point to SEO-optimized PDF files hosted on Shopify and static.usrfiles.com. One of the primary links directs the user to 'https://ttraff.club/wix?keyword=date+calculator+application', which is flagged as a malicious redirector. This indicates a likely attempt to lure users to malicious infrastructure, possibly for further exploitation or phishing.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 3

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.
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.club/wix?keyword=date+calculator+application
- https://cdn.shopify.com/s/files/1/0434/3149/3784/files/hp_2530-_8g-_poe_switch_j9774a_firmware.pdf
- https://cdn.shopify.com/s/files/1/0462/1503/7082/files/89925233563.pdf
- https://cdn.shopify.com/s/files/1/0429/3469/8147/files/bizhub_c224e_manual.pdf
- https://cdn.shopify.com/s/files/1/0438/4302/7104/files/situacion_didactica_sobre_el_dia_de_muertos_en_preescolar.pdf
- https://cdn.shopify.com/s/files/1/0430/7759/9383/files/zuratusefidisogax.pdf
- https://cdn.shopify.com/s/files/1/0454/5862/0574/files/aashto_m251_free_download.pdf
- https://static.usrfiles.com/ugd/cfa91a_ec87a82bd63a4286af3162aea99a0816.pdf
- https://static.usrfiles.com/ugd/cf14a4_6b9d85b6ccab47eabc5206c32b888c39.pdf
- https://static.usrfiles.com/ugd/76156b_746acf7d1616433b8ea856027fa40136.pdf
- https://static.usrfiles.com/ugd/8b97dd_03a9fd0be7f84f49b2aff9e54e3223f5.pdf
- https://static.usrfiles.com/ugd/44b221_814a334819594b63a04017122382c513.pdf
- https://static.usrfiles.com/ugd/b8c837_dcd2d19f2e0347388e6efd2680f7a612.pdf
- https://static.usrfiles.com/ugd/5bb01c_6407f7057e634067ace1af013cf8e1ad.pdf
- https://static.usrfiles.com/ugd/88a84f_06b9cf187d34407e965d2f0903fb3e77.pdf
- https://static.usrfiles.com/ugd/0cd019_47368393c4dd44de93f88ed181fb94a4.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 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00005fea.bin` `cc73357b80c22cadc499b676fa680fbf9edd5c5f5e0772de0657ac5bbc270ab8`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5FEA	4748 bytes
`font_01_sfnt_off0000701e.bin` `1d18534733479c870a78c46a90b83ed8aff410c3511f6838c5b83347f92bfa48`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x701E	1964 bytes
`font_02_sfnt_off00007978.bin` `366d61aebec01543514aaa01da92a7cd80583b01dd35880fbc54fa00718d1f48`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7978	10248 bytes

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