PDF malware analysis — malicious · bc726380212d1880

MALICIOUS

PDF

42.5 KB Created: 2020-09-01 18:42:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 4c2dbe4e191dab12b81f5db8a30d15d9 SHA-1: d8ff8ce53babc1aaeddcf2f45c0284f0c5ab1bc7 SHA-256: bc726380212d1880ea3662ada5f278828ebf981b7ed46d3bddbb9d84bcc9c7b0

128 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/wix?keyword=kathi+mela+kathi+audio+song++starmusiq'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded links, including one to 'https://static.usrfiles.com/ugd/9ea91e_e3a557df53fb43f48bb95ffd10b01994.pdf'. The presence of a 'download button' heuristic further supports the lure mechanism. The document body contains obfuscated text and the malicious URL.

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.cc/wix?keyword=kathi+mela+kathi+audio+song++starmusiq
- https://static.usrfiles.com/ugd/9ea91e_e3a557df53fb43f48bb95ffd10b01994.pdf
- https://static.usrfiles.com/ugd/c068f8_3afaf2bbd58541d492fdc8ded49db6b5.pdf
- https://static.usrfiles.com/ugd/8127dd_56b9c84ddc7a4412a080798ad7a552c6.pdf
- https://static.usrfiles.com/ugd/105a8c_3797ce0e7d274a198e89a8ccaeff5238.pdf
- https://cdn.shopify.com/s/files/1/0436/4815/5806/files/lean_canvas_model_template.pdf
- https://cdn.shopify.com/s/files/1/0429/1916/6119/files/59453996335.pdf
- https://cdn.shopify.com/s/files/1/0432/8466/0380/files/ocarina_of_time_n64_guide.pdf
- https://cdn.shopify.com/s/files/1/0430/6662/2105/files/pokepilo.pdf
- https://cdn.shopify.com/s/files/1/0432/1116/1768/files/acta_constitutiva_de_bimbo.pdf
- https://static.usrfiles.com/ugd/628a76_87589575b69f4e358fc1d401ee5e630e.pdf
- https://static.usrfiles.com/ugd/b8c837_d946a00d414141e79af84fb08e1ae5de.pdf
- https://static.usrfiles.com/ugd/529dbf_e6ce46a4bbe6478ba2b0b406ecf816f7.pdf
- https://static.usrfiles.com/ugd/b8c837_63aad2c1a8234b43a7d25d63c193b7e7.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_off000051ba.bin` `ecbd8178be2ad68caa50cd183e5a7e8065bab57cde9647ec8ff06fe4035cc8a4`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x51BA	5400 bytes
`font_01_sfnt_off000063da.bin` `af1d4e8f5066d3499bd5ab76f246e3f5124a496122d11de5c315be1da451bfa7`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x63DA	10116 bytes
`font_02_sfnt_off000086a9.bin` `bc6d684f813ac1c32be8bd0fe15b7813cdddcd900b6f98dcbbe4bb93017ec79b`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x86A9	16448 bytes

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