PDF malware analysis — malicious · c133408c69803f32

MALICIOUS

PDF

76.0 KB Created: 2020-09-07 20:54:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 7d6754b1956f8da76fa97b8ed3b6cc70 SHA-1: a76ecd6dd5949205c26b265f54e4c1c060d9566e SHA-256: c133408c69803f320103b9f18150a1d39a0eb1812031c425c31e0f0e57aa6d73

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK, indicating it directs users to malicious infrastructure. Additionally, PDF_SEO_LINK_FARM suggests the document is part of a link farm designed to attract traffic. The primary malicious IOC is the redirector URL, which is likely used to host or deliver further malicious content. The document body contains garbled text but includes the target URL, suggesting an attempt to disguise the malicious link within seemingly legitimate content.

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/pify?keyword=cortical+and+cancellous+bone+formation
- https://cdn.shopify.com/s/files/1/0434/9755/4084/files/sitij.pdf
- https://cdn.shopify.com/s/files/1/0433/3672/8734/files/caramel_latte_nutrition_information.pdf
- https://cdn.shopify.com/s/files/1/0429/0641/9367/files/kefegulasu.pdf
- https://cdn.shopify.com/s/files/1/0431/6397/5835/files/babaduwegikasajan.pdf
- https://cdn.shopify.com/s/files/1/0431/2186/8960/files/26310912708.pdf
- https://cdn.shopify.com/s/files/1/0437/2814/2485/files/english_nursery_rhymes_mp4.pdf
- https://cdn.shopify.com/s/files/1/0433/1077/6473/files/20679582226.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/37638787324.pdf
- https://cdn.shopify.com/s/files/1/0428/3033/2070/files/darakokoj.pdf
- https://cdn.shopify.com/s/files/1/0430/7265/1413/files/xirelapirapif.pdf
- https://cdn.shopify.com/s/files/1/0437/5940/3157/files/berulilujof.pdf
- https://cdn.shopify.com/s/files/1/0438/5941/1104/files/36857913878.pdf
- https://static.usrfiles.com/ugd/285be4_8815a7d5cfac46ec907d28383083cd7d.pdf
- https://static.usrfiles.com/ugd/253000_da14dda1eceb4a27812ed7013e6b3f63.pdf
- https://static.usrfiles.com/ugd/3bf302_4b295a54f80047d48c75810533161471.pdf
- https://static.usrfiles.com/ugd/921909_c7d634288f124f6983705fa5a38ab8c0.pdf
- https://static.usrfiles.com/ugd/5ea691_990a5a1a8bca401ea1417bf9ca5355c5.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_off0000ea99.bin` `da97f253105df8b977ea0d0a6a6515f21fa038725f9b9b9e4e3f47d40fa70df7`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xEA99	5212 bytes
`font_01_sfnt_off0000fc38.bin` `d772e3b63738d7c43a2880452e3653c9a7c8d85fcf1b2e9228a9fe1de5372715`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xFC38	11356 bytes

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