PDF malware analysis — malicious · fc70b0b41f9558f9

MALICIOUS

PDF

41.2 KB Created: 2020-08-03 19:24:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 28404f35e2b6dd7f76ed54006af9dbcf SHA-1: 48e78d8c7fde41497104a6b7a6b0cc77d40abb65 SHA-256: fc70b0b41f9558f9445fc9013845d96534e762091e5cda788f228b9d1f4278da

162 Risk Score

Malware Insights

MITRE ATT&CK

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

The PDF file contains a social engineering lure, presenting itself as a download for Adobe PDF Reader. It embeds multiple links, with the primary one, 'https://ttraff.ru/pify?keyword=adobe+pdf+reader+online+download', redirecting to a link farm. This suggests the document is designed to drive traffic to malicious or spam sites, potentially for further exploitation or credential harvesting. No scripts were extracted, limiting the analysis of direct payload delivery.

Heuristics 4

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.
Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE

Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
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.ru/pify?keyword=adobe+pdf+reader+online+download
- http://files.esphockeyagency.com/uploads/1/3/1/3/131379552/nipovuw.pdf
- http://files.nationalhoteltoowoomba.com/uploads/1/3/0/7/130775396/3254230.pdf
- http://files.burbankbeat.net/uploads/1/3/2/6/132681901/riwiboj_gilomogapuj.pdf
- http://files.onesketchyartstudio.com/uploads/1/3/1/3/131382696/41d072a074f5.pdf
- https://cdn.shopify.com/s/files/1/0438/8323/3448/files/nofumogakaz.pdf
- https://cdn.shopify.com/s/files/1/0434/3355/8168/files/riwaxoxejidifewi.pdf
- https://cdn.shopify.com/s/files/1/0431/3025/7568/files/creating_a_discord_server.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/dejotoxirebogoro.pdf
- https://cdn.shopify.com/s/files/1/0437/6369/5770/files/bewudifanogawogute.pdf
- https://cdn.shopify.com/s/files/1/0431/5742/2229/files/how_to_unlike_a_post_on_facebook.pdf
- https://cdn.shopify.com/s/files/1/0434/7353/5142/files/89004075965.pdf
- https://cdn.shopify.com/s/files/1/0432/0778/6654/files/64609633926.pdf
- https://cdn.shopify.com/s/files/1/0433/7916/3285/files/70194687885.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/59022585862.pdf
- https://cdn.shopify.com/s/files/1/0437/2591/4277/files/lefuwapukagi.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_off0000631e.bin` `08fd1d901919fccedbe0e6b799b5ea62a02bd0bcca89a717742013bddaaebf7a`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x631E	5080 bytes
`font_01_sfnt_off00007485.bin` `ed4419ec01388a92f51ab9f55461a5fd993fd692de40179400d82c78ce00cab0`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7485	10420 bytes

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