PDF malware analysis — malicious · 90fde391b7106906

MALICIOUS

PDF

36.6 KB Created: 2020-08-08 11:35:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 02b7d2843d084aea93d7aac639873a71 SHA-1: f31f149c8b727067a862caf0eb3dae111c953d4f SHA-256: 90fde391b71069063073a69977e8658f82ee9622c83bfdf9a313bc2359ce93a3

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1200 Hardware Add-in

The PDF file was flagged by multiple critical heuristics indicating malicious redirector links and a link farm. The embedded URLs, particularly the one pointing to 'ttraff.ru', are likely part of a phishing or malware distribution scheme. The ML classifier also strongly indicated maliciousness. No scripts were extracted, but the sheer volume of outbound links suggests an attempt to overwhelm or confuse security measures while directing users to potentially harmful content.

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.ru/pify?keyword=2.+35+storyboard+template+pdf
- http://files.mrbaugher.com/uploads/1/3/1/4/131482823/31c754.pdf
- http://ligavi.pommaz.com.au/uploads/1/3/1/0/131071157/933ae161232c0e.pdf
- http://files.rosebudboxes.com/uploads/1/3/1/1/131164002/bd592c03950.pdf
- http://files.sweettoothfudge.com/uploads/1/3/1/0/131070861/2654894.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/11286786524.pdf
- https://cdn.shopify.com/s/files/1/0432/0513/2456/files/61463559988.pdf
- https://cdn.shopify.com/s/files/1/0433/2558/7610/files/77524663716.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/40814320730.pdf
- https://cdn.shopify.com/s/files/1/0431/5355/5610/files/6121963987.pdf
- https://cdn.shopify.com/s/files/1/0432/9173/8277/files/sanogele.pdf
- https://cdn.shopify.com/s/files/1/0432/1479/9012/files/19451078638.pdf
- https://cdn.shopify.com/s/files/1/0435/4693/5451/files/alkuu_kitap.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/lafiku.pdf
- https://cdn.shopify.com/s/files/1/0430/3192/0794/files/assessment_center_ejemplos.pdf
- https://cdn.shopify.com/s/files/1/0435/5276/8151/files/48832414324.pdf
- https://cdn.shopify.com/s/files/1/0439/1269/1867/files/35591870114.pdf
- https://cdn.shopify.com/s/files/1/0427/6604/1244/files/19605825979.pdf
- https://cdn.shopify.com/s/files/1/0434/6616/2341/files/mods_para_minecraft_1._4._7.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_off00004f32.bin` `72f824a80fd414e0523707147fb78e27f2a0e08fc997d870df501a4cefd009fa`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x4F32	5784 bytes
`font_01_sfnt_off000062d8.bin` `040d2476782d59875db86d233467997cbd6c458e22ff09a8a8ef9e08e22823ab`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x62D8	10492 bytes

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