PDF malware analysis — malicious · 5249742f678cf6a0

MALICIOUS

PDF

41.1 KB Created: 2020-08-11 02:53:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: ae208e277ef7c5471870fe0795d6f26a SHA-1: 6be51b5d295de2d3ab153bd26f39c92424b8018f SHA-256: 5249742f678cf6a07c32abc17c2314c00f26566fcbd083200f3fe1f768af491b

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a link to a known malicious redirector, ttraff.cc, which is likely intended to lead the user to a malicious site. The document body, though heavily obfuscated, contains text related to downloading images from PDFs and includes the malicious URL, suggesting a social engineering lure. The presence of numerous other links to Shopify-hosted PDFs, while many are benign, contributes to a link farm pattern, potentially for SEO manipulation or to obscure the malicious destination.

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=download+images+from+pdf+file+online
- http://files.m.kaltydesigns.com/uploads/1/3/1/4/131438282/5388253.pdf
- http://files.directinservicetraining.com/uploads/1/3/0/9/130969775/zutus-zomarejovefo.pdf
- http://jiguru.andy-buchan.co.uk/uploads/1/3/2/6/132682883/811625.pdf
- https://cdn.shopify.com/s/files/1/0437/7011/8302/files/24050205400.pdf
- https://cdn.shopify.com/s/files/1/0428/3485/4051/files/robotech_rpg.pdf
- https://cdn.shopify.com/s/files/1/0431/1754/3588/files/office_administration_skills.pdf
- https://cdn.shopify.com/s/files/1/0434/6734/1974/files/kodukapuzawet.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zavoriduxosijalas.pdf
- https://cdn.shopify.com/s/files/1/0430/4781/3269/files/15081880915.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/40369191557.pdf
- https://cdn.shopify.com/s/files/1/0428/4986/1791/files/alphabetical_and_numeric_series_reasoning.pdf
- https://cdn.shopify.com/s/files/1/0430/9316/4181/files/ledudimafurufidenivobupo.pdf
- https://cdn.shopify.com/s/files/1/0434/9889/7574/files/45810417485.pdf
- https://cdn.shopify.com/s/files/1/0433/0664/7717/files/23275740938.pdf
- https://cdn.shopify.com/s/files/1/0429/4007/2092/files/24291573352.pdf
- https://cdn.shopify.com/s/files/1/0429/3813/8783/files/ruliloga.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_off0000623f.bin` `b706224cddba2917fc3d422b43f801a8a9f95964f36bc25c0237df8e1b027055`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x623F	5452 bytes
`font_01_sfnt_off000074ca.bin` `e966359471b60abe07ae282d0b5781c765d8a5ef7ea3df7655dafbb6f9d64cd5`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x74CA	10144 bytes

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