PDF malware analysis — malicious · 37b623c52eab6e73

MALICIOUS

PDF

44.2 KB Created: 2020-08-16 13:40:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: befe0b9f80f067d940dffad4bedac16c SHA-1: 299d6a544e5e44171c0d40776fecc7372c5db09c SHA-256: 37b623c52eab6e73f0b99a2837402b8ec1ef2dae7ad963880ed34f8c2505cb44

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.cc/pify?keyword=react+material+ui+dashboard+template'. This URL is likely part of a phishing or malware distribution chain. The document body, though heavily obfuscated, also contains this URL and references a 'React material ui dashboard template', suggesting a lure. The presence of numerous external PDF links, many hosted on benign platforms like Shopify but likely used to obscure the malicious intent, further supports a link farm or SEO poisoning attack pattern.

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=react+material+ui+dashboard+template
- http://basuser.phoenixtherise.com/uploads/1/3/1/4/131453114/vitevenexasaga.pdf
- http://fezijo.suncitylibraryfriends.org/uploads/1/3/0/7/130776393/93340543d.pdf
- http://files.travelbaseballrankings.com/uploads/1/3/1/4/131437061/a0c90fdb78125.pdf
- http://fezijo.suncitylibraryfriends.org/uploa
- https://cdn.shopify.com/s/files/1/0431/1734/6982/files/all_derivative_and_integration_formula.pdf
- https://cdn.shopify.com/s/files/1/0450/2038/1342/files/capacitores_ceramicos.pdf
- https://cdn.shopify.com/s/files/1/0441/2289/8584/files/xanuwozuzed.pdf
- https://cdn.shopify.com/s/files/1/0433/3751/5176/files/xenepix.pdf
- https://cdn.shopify.com/s/files/1/0439/1796/7528/files/12206347583.pdf
- https://cdn.shopify.com/s/files/1/0435/8003/1137/files/11930070932.pdf
- https://cdn.shopify.com/s/files/1/0432/3606/5435/files/88994207993.pdf
- https://cdn.shopify.com/s/files/1/0440/5064/5157/files/andhra_guide_box_office_twitter.pdf
- https://cdn.shopify.com/s/files/1/0440/6365/4040/files/esl_ordinal_numbers.pdf
- https://cdn.shopify.com/s/files/1/0437/2971/5354/files/xutani.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_off000061eb.bin` `e034667fe767e864ef675f03af72da1038ab70d18069edb02d2755a875c3c61d`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x61EB	5236 bytes
`font_01_sfnt_off000073a7.bin` `f5daea7e6cd37b3eb287001d4a454472e786a2f48d4d9d8df8189306dceba1e7`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x73A7	9868 bytes
`font_02_sfnt_off00009557.bin` `cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9557	4324 bytes

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