PDF malware analysis — malicious · 3271cd7ab8464eaa

MALICIOUS

PDF

55.7 KB Created: 2020-08-05 23:27:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: a2c1c50ce2d19a1ef31174fe00a0e37f SHA-1: 62bccfd13d2a247b98f25f9b62b82cc27be0355b SHA-256: 3271cd7ab8464eaaede867f7ab59b5d588e8d3dacb03bda911b13c46596bf2f7

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file was flagged by a machine learning classifier and contains a critical heuristic indicating it links to known malicious redirector infrastructure. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded URLs, many pointing to external PDF files hosted on Shopify. The primary malicious IOC is the redirector URL, which is likely used to funnel users to a malicious site.

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=brahmanda+purana+tamil+pdf
- http://files.willowfree.ca/uploads/1/3/0/7/130740344/xiwodufa.pdf
- http://files.cherrywoodadventures.co.uk/uploads/1/3/1/3/131384567/8571882.pdf
- http://files.centrepointecincinnati.com/uploads/1/3/1/4/131406413/e08b8.pdf
- http://files.anglemidwest.com/uploads/1/3/1/3/131398174/6396227.pdf
- https://cdn.shopify.com/s/files/1/0435/7731/1395/files/barangay_clearance_form.pdf
- https://cdn.shopify.com/s/files/1/0440/8098/8325/files/certificados_de_calidad.pdf
- https://cdn.shopify.com/s/files/1/0429/2476/9436/files/16263400841.pdf
- https://cdn.shopify.com/s/files/1/0427/5837/3542/files/nudivu.pdf
- https://cdn.shopify.com/s/files/1/0431/8124/4577/files/neil_cavuto_net_worth.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/sivezijikok.pdf
- https://cdn.shopify.com/s/files/1/0430/3772/0733/files/redatu.pdf
- https://cdn.shopify.com/s/files/1/0434/0963/7530/files/fileliwaw.pdf
- https://cdn.shopify.com/s/files/1/0436/0221/5074/files/53409564619.pdf
- https://cdn.shopify.com/s/files/1/0430/7301/1866/files/auricularia_auricula.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 4

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off000067e7.bin` `b6067f3e4932d05372906ff1800ab6389fe89d9a99b8cd1e2b8f6886f7a38871`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x67E7	5152 bytes
`font_01_sfnt_off00007941.bin` `b91f3c26f37c28538ed09035cbea6f9221827f1e30b50c452f08cc820bcc167b`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7941	3720 bytes
`font_02_sfnt_off000084a4.bin` `791bd7e256c656d4a725e5cc7ccd56990b505f4e5bef85b6a9bd95d382103085`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x84A4	15832 bytes
`font_03_sfnt_off0000b4ca.bin` `6225b87482b37b48dab94611d002d21b781fd8b1df1d21a6b759d13a635b0cdd`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xB4CA	8472 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.