PDF malware analysis — malicious · 9bc71bdbe9c025a1

MALICIOUS

PDF

60.5 KB Created: 2020-08-09 20:53:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: b24149fd6e5dc51c744ee7dfbcd227cb SHA-1: 55a56671cb7c30a997159591b2516432a756df39 SHA-256: 9bc71bdbe9c025a15b02b2dd02d9722c6937df832a4cb819f49aa777f185558a

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a large number of embedded links, many of which point to Shopify domains, but one critical link redirects to a known malicious domain (ttraff.cc). This suggests a phishing or redirection attack. The document body, though partially corrupted, contains text related to 'Actos de fe meditaciones diarias' and includes the malicious URL, reinforcing the redirection attempt. The ML classifier also flagged this PDF with high confidence.

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=actos+de+fe+meditaciones+diarias+para+mejorar+el+espiritu+pdf
- http://tuvif.uniontownartclub.org/uploads/1/3/0/8/130873851/3a661481dd6.pdf
- http://files.nicholsbaptistchurch.com/uploads/1/3/0/8/130813645/semug.pdf
- http://rubafolom.thresholdsorganizingco.com/uploads/1/3/2/3/132303382/24f1e.pdf
- https://cdn.shopify.com/s/files/1/0433/9728/3992/files/14390246394.pdf
- https://cdn.shopify.com/s/files/1/0435/7442/7806/files/13869300008.pdf
- https://cdn.shopify.com/s/files/1/0440/2230/0822/files/budorunarebok.pdf
- https://cdn.shopify.com/s/files/1/0434/8693/7253/files/26939044833.pdf
- https://cdn.shopify.com/s/files/1/0433/1415/1589/files/fasixegiketurip.pdf
- https://cdn.shopify.com/s/files/1/0432/6624/4764/files/world_time_zone_chart.pdf
- https://cdn.shopify.com/s/files/1/0429/6844/9180/files/rizasivop.pdf
- https://cdn.shopify.com/s/files/1/0431/3491/0618/files/jaluratexe.pdf
- https://cdn.shopify.com/s/files/1/0429/7441/2949/files/76926669848.pdf
- https://cdn.shopify.com/s/files/1/0431/0797/5335/files/39584799652.pdf
- https://cdn.shopify.com/s/files/1/0431/5696/3479/files/41800866893.pdf
- https://cdn.shopify.com/s/files/1/0433/1044/8798/files/nopupuludi.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_off00009305.bin` `4cbd1bf2c9b02932bfc53d61c89e00a4f114ff9a1a22744f9c257a2f0bae81a7`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9305	5368 bytes
`font_01_sfnt_off0000a534.bin` `f77ecd78f23e62c2b596e929df32a2a89869c0cc77bf3bddfed08c916c8e4ad9`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xA534	11108 bytes
`font_02_sfnt_off0000c97c.bin` `fac2d91c5d07e0e67a756a157cb6c06f7c774a7fe5f5f03ae244e4a37e431844`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xC97C	17220 bytes

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