PDF malware analysis — malicious · f812bdf1dbc25597

MALICIOUS

PDF

37.0 KB Created: 2020-08-29 18:00:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 4373838b1720954ddf96f8722891c040 SHA-1: 31a3d5e05110f0b0942903321bf5c9816f4b33c3 SHA-256: f812bdf1dbc25597db552eefe691637230822bda2c2df2aff657841434ed100a

128 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a link to a known malicious redirector, ttraff.cc, disguised as an 'entresto patient assistance form pdf'. This heuristic, combined with the presence of a large number of embedded links pointing to various PDF files, suggests a phishing or scam attempt. The document body, though heavily obfuscated, contains the malicious URL and references to other PDF files, reinforcing the lure.

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.
Urgency / deadline lure low SE_URGENCY_LURE

Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
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=entresto+patient+assistance+form+pdf
- https://cdn.shopify.com/s/files/1/0429/2929/1427/files/momakilaxirumodobujo.pdf
- https://cdn.shopify.com/s/files/1/0432/5136/8104/files/65043846258.pdf
- https://cdn.shopify.com/s/files/1/0432/1994/3579/files/dojabow.pdf
- https://cdn.shopify.com/s/files/1/0428/5625/1555/files/18375184357.pdf
- https://cdn.shopify.com/s/files/1/0434/9722/6402/files/tourism_victoria_annual_report.pdf
- https://cdn.shopify.com/s/files/1/0433/6785/8334/files/administration_publique_dfinition.pdf
- https://static.usrfiles.com/ugd/b8c837_cf47ea6b1b8442ee9c2bcdc31cafbbe3.pdf
- https://static.usrfiles.com/ugd/b8c837_789b67d666bf4959a7013fb3584f0a42.pdf
- https://static.usrfiles.com/ugd/b8c837_ab81987757864880b9211f26daa779da.pdf
- https://static.usrfiles.com/ugd/b8c837_c42a3941ec6a42f4ada1f34b21746e93.pdf
- https://static.usrfiles.com/ugd/b8c837_fdf468356f4840908b7707929b9d07a0.pdf
- https://static.usrfiles.com/ugd/b8c837_bb28072733b24862b11105ec8d3431bb.pdf
- https://static.usrfiles.com/ugd/b8c837_1cd81dc27d2d4ab3a7601226f188ad43.pdf
- https://static.usrfiles.com/ugd/b8c837_01ea57b9614d43c18c39151d72285354.pdf
- https://static.usrfiles.com/ugd/b8c837_bb4d0b3c08ad49eab3d4c4a0914c1d7e.pdf
- https://static.usrfiles.com/ugd/b8c837_7f2b7d9a47da44d293e0ccd689a5c3cd.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_off000053e2.bin` `0083c570eaedb6fac7fd8b48df98aa638a7bf049585039a26771626b715c5351`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x53E2	5228 bytes
`font_01_sfnt_off00006590.bin` `fdfb7a3f24ef8052737db8da4a4505ac48982bf3d36fb2faa9f38f01fc801ae0`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6590	9996 bytes

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