PDF malware analysis — malicious · a75f384c65cd337d

MALICIOUS

PDF

45.0 KB Created: 2020-09-17 01:31:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 00322856e29f976f8c716edd3a3783cd SHA-1: 1dfc0a975e1633af694835d13e60e719c0812e45 SHA-256: a75f384c65cd337da5859a7385fa35ebbedd64d93a5b686781efc6be96ccde03

150 Risk Score

Malware Insights

MITRE ATT&CK

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

The PDF contains a mass external link farm, with a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.cc/wix?keyword=gainesville+apartment+and+condominium+guide+gainesville+fl'. This indicates a likely phishing or malware distribution attempt. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted, but the presence of numerous links to potentially malicious domains suggests a delivery mechanism focused on user interaction with embedded URLs.

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/wix?keyword=gainesville+apartment+and+condominium+guide+gainesville+fl
- http://files.guillozine.ca/uploads/1/3/2/7/132740249/45b6f0c64ac02.pdf
- http://vawazotow.mpglossproducts.com/uploads/1/3/0/8/130874583/vutebegozipe-wovopib.pdf
- http://gojevu.krutschworks.com/uploads/1/3/0/9/130968961/fudew.pdf
- https://15c0114a-3c1d-4f2c-bcf0-f63377e0749d.filesusr.com/ugd/7f16bd_a75399fa18b44f1f95e88d9c552c56dc.pdf?index=true
- https://dd8ace19-4508-4976-8d5e-657535bf4200.filesusr.com/ugd/5de1df_f5a9713149d9441a8de4e101c4b3bcd7.pdf?index=true
- https://698789a0-e745-4ca9-b7f5-a15d505341e0.filesusr.com/ugd/7d2910_b7992894159c4282bdb9ed2c73278e8c.pdf?index=true
- https://b7863069-5d9b-407b-a330-7434a88bb69c.filesusr.com/ugd/3eed2b_e1de709dd9be4308902d8d270db8b21f.pdf?index=true
- https://0bdc9967-af71-4fc1-9f7e-defbdd3c4458.filesusr.com/ugd/02beb7_51da00e55fcc4599b5cdbf06bc0fcf64.pdf?index=true
- https://9ae62927-c7ab-4ba3-aad9-13ee940e1f57.filesusr.com/ugd/69695d_fe21a5d121b74a189d2cecbddb3e391c.pdf?index=true
- https://f6b2248b-ba04-456b-8337-d138421c2a9a.filesusr.com/ugd/d1c05f_8cb3d7659d424325a2f81d406a11a6b0.pdf?index=true
- https://c0edb329-cf3f-4f07-9e96-883a29a5789a.filesusr.com/ugd/f3cb45_4ff8e341f090411f95a71a4042f5dad4.pdf?index=true
- https://8f4390fb-6aa3-44a8-a067-6c503d55170e.filesusr.com/ugd/3d0627_2d635d27dbf1420bad78771086fcd1c3.pdf?index=true
- 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_off00006fd3.bin` `3520fd1e75c6f679fbf63cb65d53ceac06264c6c4f033ea34484fedd872c9062`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6FD3	5564 bytes
`font_01_sfnt_off000082bd.bin` `bb397e6d54cd00b3817f36bd4604c732a494dea325704f254deb0010dfc29d27`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x82BD	10548 bytes

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