PDF malware analysis — malicious · a77f90cc21bb169f

MALICIOUS

PDF

84.9 KB Created: 2020-09-13 00:12:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: b7ccd6fa924f5c4cd760457e7092f66a SHA-1: 35252605c4283161c2dc2b492c9755f6b64d11e3 SHA-256: a77f90cc21bb169fb3514bc6b33002c4ea7342a89b96e270b0415a472841de82

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.club/wix?keyword=download+your+freedom+net+apk'. This URL is presented in the document body, suggesting an attempt to trick the user into downloading an Android application. The PDF also contains a large number of external links, characteristic of a link farm, further supporting a malicious intent.

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.club/wix?keyword=download+your+freedom+net+apk
- https://cdn.shopify.com/s/files/1/0436/2806/9017/files/tunnel_boring_machine_manual.pdf
- https://cdn.shopify.com/s/files/1/0429/8768/4003/files/dazikigeg.pdf
- https://cdn.shopify.com/s/files/1/0429/1048/2588/files/frame_io_premiere.pdf
- https://cdn.shopify.com/s/files/1/0440/4376/3862/files/rizivujakuxidiweligu.pdf
- https://cdn.shopify.com/s/files/1/0432/6565/4939/files/1578249258.pdf
- https://static.usrfiles.com/ugd/46429b_e6be614d141b4585a273848d6dd66184.pdf
- https://static.usrfiles.com/ugd/762c1a_d42e657e1c894fe7a56802ee9c442a2f.pdf
- https://static.usrfiles.com/ugd/f09a9d_be50dde49323468a99f9ca84f752efc2.pdf
- https://static.usrfiles.com/ugd/4c3ae3_36d5c2b5985f409cbf2af0caac830da7.pdf
- https://static.usrfiles.com/ugd/de60da_1ff2e2360c174431896ad7300ff4c4c7.pdf
- https://static.usrfiles.com/ugd/eed56f_c31cc3b9b51b4da7ad5ba3c4a4ba57bd.pdf
- https://static.usrfiles.com/ugd/44b221_b5ff15ab34854ed983ccb8336e46a063.pdf
- https://static.usrfiles.com/ugd/b65acf_3126cfc63cba4c9b888c63f45e09f233.pdf
- https://static.usrfiles.com/ugd/4a6c57_9c4a10e12f4d4cc38da5355c9124c0eb.pdf
- https://static.usrfiles.com/ugd/bc4951_2022775be11940f3b941179b87599f8b.pdf
- https://static.usrfiles.com/ugd/5ecadc_361fffa6bedf4d578b299271b2a929d1.pdf
- https://static.usrfiles.com/ugd/dc98cc_d7400a1b159a479aa3f8314fbb4a4a1b.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_off00010584.bin` `951f748fa453c8a2cd316ae468d2906acfd1b55898a1afe2163816501cd2095c`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x10584	5268 bytes
`font_01_sfnt_off0001177b.bin` `579641cbbbfe5d23648314521a867a668303f4b0202a5bc4ceab3927ca1abe1a`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x1177B	14480 bytes

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