PDF malware analysis — malicious · 3e87ea466e7817e0

MALICIOUS

PDF

50.0 KB Created: 2020-08-12 15:23:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 9c841865b7ec1604b1ec979371a61162 SHA-1: ccc00886c6ab43944e6a10277d2e3bbf0af027a0 SHA-256: 3e87ea466e7817e0d969b96b65b1f5c7d0d2d042de7743da990207bbd269e049

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains multiple embedded URLs, with one identified as a malicious redirector. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK specifically flags the URL https://ttraff.cc/pify?keyword=guia+ada+diabetes+espa%25C3%25B1ol+pdf as malicious. Additionally, the PDF_SEO_LINK_FARM heuristic indicates a large number of external links, suggesting an attempt to obscure the malicious destination or engage in SEO abuse for traffic generation. The ML_NYX_PDF_MALICIOUS score further supports the malicious nature of the document.

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.cc/pify?keyword=guia+ada+diabetes+espa%25C3%25B1ol+pdf
- http://mikij.surfacedesignbymaryjane.com/uploads/1/3/1/1/131164250/gakeranozerogoka.pdf
- http://files.camrapenn.org/uploads/1/3/0/9/130969061/fcb59b.pdf
- http://fosomori.steveleonard.co.uk/uploads/1/3/0/7/130776445/kigizipapuvi.pdf
- https://cdn.shopify.com/s/files/1/0438/0393/4877/files/27980433775.pdf
- https://cdn.shopify.com/s/files/1/0435/4444/5092/files/chinese_alphabet_pronunciation.pdf
- https://cdn.shopify.com/s/files/1/0428/2833/3212/files/principios_da_administrao_cientifica_taylor.pdf
- https://cdn.shopify.com/s/files/1/0432/7361/7568/files/danitaferedonozozemu.pdf
- https://cdn.shopify.com/s/files/1/0437/3741/5829/files/alkanes_list_and_structure.pdf
- https://cdn.shopify.com/s/files/1/0428/2312/3100/files/caprice_24.pdf
- https://cdn.shopify.com/s/files/1/0433/5131/0488/files/10467311815.pdf
- https://cdn.shopify.com/s/files/1/0430/1357/0709/files/zupujala.pdf
- https://cdn.shopify.com/s/files/1/0429/6884/2393/files/41224298356.pdf
- https://cdn.shopify.com/s/files/1/0437/8089/8973/files/46110656018.pdf
- https://cdn.shopify.com/s/files/1/0430/7002/9975/files/input_file_accept.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_off00006cc5.bin` `78d33907fbf4639827c9b6ba5b1470e328f523d4d63e8d5dec815bf312f8a59c`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6CC5	5324 bytes
`font_01_sfnt_off00007eb3.bin` `c68e7c52fdba7ab164c65d87e893664105f7dc46a71b3c5d5d0af67b464d7ba3`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7EB3	11428 bytes
`font_02_sfnt_off0000a41a.bin` `2fa4f296fe9e38b1bea2264e65e06c45fbbf4edfcb32b68fd436b1108ab95b01`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xA41A	16096 bytes

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