PDF malware analysis — malicious · 90b966ef9b69103e

MALICIOUS

PDF

45.0 KB Created: 2020-08-12 05:08:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: b82537580669339c58fc622b2e334dff SHA-1: 0de0aa36a294336af19d910d178cb941fc6ff4ef SHA-256: 90b966ef9b69103e4dd5fbb85227fb82c207eff16b87d6a0a28f199afb7c07b5

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a significant number of embedded links, with one identified as a malicious redirector. The heuristic firings indicate a PDF link farm and a malicious redirector, strongly suggesting the intent is to lure users to malicious sites. The ML classifier also flagged this PDF with high confidence. No scripts were extracted from this sample.

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.com/pify?keyword=amleto+traduzione+montale+pdf
- http://files.itistheend.com/uploads/1/3/0/8/130874647/netil.pdf
- http://files.daigribbleangling.com/uploads/1/3/0/7/130739043/mipelidovikopalovej.pdf
- http://files.bizsign.shop/uploads/1/3/1/4/131452903/venofabojojimu-zetumubezawupa.pdf
- http://files.hareloomupholstery.com/uploads/1/3/1/4/131454221/a13b2bf742f5c.pdf
- http://files.barryneighbors.com/uploads/1/3/1/0/131070560/a94055491805.pdf
- https://cdn.shopify.com/s/files/1/0432/8525/0216/files/87911115655.pdf
- https://cdn.shopify.com/s/files/1/0434/4040/6695/files/2009_jetta_owners_manual.pdf
- https://cdn.shopify.com/s/files/1/0431/8461/9680/files/womeni.pdf
- https://cdn.shopify.com/s/files/1/0434/0835/9589/files/bavativuxoda.pdf
- https://cdn.shopify.com/s/files/1/0437/2732/3301/files/doseketavudenaxirev.pdf
- https://cdn.shopify.com/s/files/1/0429/4891/9450/files/ravolanid.pdf
- https://cdn.shopify.com/s/files/1/0434/5180/9942/files/83791146154.pdf
- https://cdn.shopify.com/s/files/1/0429/2083/7279/files/nobemenorodaxeweviw.pdf
- https://cdn.shopify.com/s/files/1/0432/2865/9874/files/jopevufezosidoxisokubu.pdf
- https://cdn.shopify.com/s/files/1/0432/6745/7188/files/caballo_de_troya_3.pdf
- https://cdn.shopify.com/s/files/1/0433/0507/4838/files/42604383962.pdf
- https://cdn.shopify.com/s/files/1/0431/8209/6535/files/algebra_and_trigonometry_5th_edition_blitzer.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/
- https://cdn.shopify.com/s/files/1/0433/0507/4

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00006ffd.bin` `b60ac83e601f4a0e5f8cec3b598380f2a01dbce505b0c90896b17f47d8b7f871`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6FFD	5048 bytes
`font_01_sfnt_off0000811c.bin` `3501469e8f5891cab2c47462c69b68556a35c18b80b69c7e15aee0ec2f2f1e15`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x811C	11040 bytes

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