PDF malware analysis — malicious · 51a84295d563f349

MALICIOUS

PDF

44.1 KB Created: 2020-08-29 15:57:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 9a574439e99ce4de2f4fbb15c0241591 SHA-1: 1ee3c3fb927d47e6f0d599c9c5ee2c8a16336a9f SHA-256: 51a84295d563f349b96118e31ae8978b4eae541ae0ecdbacb047d8c5c774f7f7

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link, directing users to 'https://ttraff.me/wix?keyword=le+corps+humain+ms'. This indicates a phishing or scam attempt. The document body, though heavily obfuscated, also contains this URL, reinforcing the malicious intent. The presence of a large number of external PDF links, many pointing to static.usrfiles.com, suggests a link farm designed to obscure the true malicious destination.

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.me/wix?keyword=le+corps+humain+ms
- https://static.usrfiles.com/ugd/b8c837_90e543a84ac842c8b8da92c186c818f7.pdf
- https://static.usrfiles.com/ugd/b8c837_a586055689a44ff191ed48523f317cce.pdf
- https://static.usrfiles.com/ugd/b8c837_33db054707b64e2e83f720bec0d4b135.pdf
- https://static.usrfiles.com/ugd/b8c837_c1c1b08528504a6386fbecff564c815f.pdf
- https://static.usrfiles.com/ugd/b8c837_60243c40796a47ada54802728d76e76d.pdf
- https://static.usrfiles.com/ugd/136d07_c943a04dea6241719868643b706ad01e.pdf
- https://static.usrfiles.com/ugd/b8c837_c8c41945daba4f0d98e3e43d7d241d30.pdf
- https://cdn.shopify.com/s/files/1/0430/1121/1425/files/85804634464.pdf
- https://cdn.shopify.com/s/files/1/0428/3459/1907/files/bojepemutubuzozuposoxi.pdf
- https://cdn.shopify.com/s/files/1/0434/0337/8839/files/39977475660.pdf
- https://cdn.shopify.com/s/files/1/0440/6090/1528/files/mcdonalds_breakfast_coupons.pdf
- https://cdn.shopify.com/s/files/1/0428/0070/9791/files/stock_market_trading_technical_analysis.pdf
- https://static.usrfiles.com/ugd/b8c837_5c60dc9215f24256a5f9b967047a8e19.pdf
- https://static.usrfiles.com/ugd/0a0016_74cedbb1ef914f7c94a72ec67afa3e38.pdf
- https://static.usrfiles.com/ugd/b8c837_03469f8f1a1c4133900d943862dac300.pdf
- https://static.usrfiles.com/ugd/73cb9e_020a8fb3ebe2443e9839739355583ae7.pdf
- https://static.usrfiles.com/ugd/b8c837_d5f63a7967154f95b8721db2cec90a11.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_off00006b43.bin` `427100f3aea7a2362770bbf67b33964a64c8045825118e4d9f228cf6dc4305b7`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6B43	5080 bytes
`font_01_sfnt_off00007c64.bin` `491f44cdefcba7be58b181edd6cd1f1139dce6a829815a87f59f1efef8c04a2b`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7C64	12200 bytes

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