PDF malware analysis — malicious · 28f3025356a0d1a0

MALICIOUS

PDF

37.5 KB Created: 2020-09-01 05:20:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 657cd909bd3c42918982dbc62b2ba40f SHA-1: 86d2a9ac9762e5cf1a131c56ab2a14ca806d59a1 SHA-256: 28f3025356a0d1a0c42291e3d42a64e86958fa45b46f703144638b7dcf7542c6

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a mass external link farm, with a critical heuristic firing for a malicious redirector link. The document body, though heavily obfuscated, contains the URL that triggered the malicious redirector heuristic. This suggests the PDF is designed to redirect users to malicious infrastructure, likely for further exploitation or phishing. No scripts were extracted from this sample.

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.cc/wix?keyword=simplified+arabic+bold+font+free
- https://cdn.shopify.com/s/files/1/0452/6794/3586/files/audit_risk_management.pdf
- https://cdn.shopify.com/s/files/1/0427/6033/9623/files/dotuvokiburogamesifoki.pdf
- https://cdn.shopify.com/s/files/1/0434/1376/6296/files/41310192654.pdf
- https://cdn.shopify.com/s/files/1/0439/9969/0910/files/3647078806.pdf
- https://cdn.shopify.com/s/files/1/0431/7062/7735/files/nuvet.pdf
- https://static.usrfiles.com/ugd/2f7815_4a399006764f43b0b19f511f568af7c6.pdf
- https://static.usrfiles.com/ugd/8b97dd_81e1950f9d5740fc9a249c5d48c573e7.pdf
- https://static.usrfiles.com/ugd/576447_358be4a87822493dbdd21b032bad9ef0.pdf
- https://static.usrfiles.com/ugd/b8c837_f38d507272ba4bb5ac3f24534b1883b7.pdf
- https://cdn.shopify.com/s/files/1/0428/2767/7852/files/warefikesotoro.pdf
- https://cdn.shopify.com/s/files/1/0439/9670/9022/files/nutritional_information_three_bean_salad.pdf
- https://cdn.shopify.com/s/files/1/0427/7121/8588/files/59779277328.pdf
- https://cdn.shopify.com/s/files/1/0434/0740/9308/files/wunenigigatuvokeru.pdf
- https://static.usrfiles.com/ugd/dd4472_702c515879344b50b09ab4eea8ca7b6c.pdf
- https://static.usrfiles.com/ugd/2ca09c_19d21876b33645a598d33efc35ab9181.pdf
- https://static.usrfiles.com/ugd/b8c837_b6aaf312e7c8418087497f06d67d87a4.pdf
- https://static.usrfiles.com/ugd/409ca8_fd98a2b813e0477eb9ed497957694a7a.pdf
- https://static.usrfiles.com/ugd/9b33c5_cf70d3d1377e4253b2f7af906ad948c2.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_off0000517f.bin` `1ffa2a75f45521f2e9b316bf0ee0f10d23adf807033fe75b1fd770b1fb95678d`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x517F	5364 bytes
`font_01_sfnt_off000063a1.bin` `8624b1f7d1d94317798d4f10b50be29df9ff6487d8b259f80be2c2179e068a62`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x63A1	11700 bytes

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