PDF malware analysis — malicious · bd6d67ded43bc1ad

MALICIOUS

PDF

49.5 KB Created: 2020-07-31 22:50:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: b3b20c308360dba2374191975e75b664 SHA-1: 8dc457ea7b868f1c0353db56f34b48abbae2903d SHA-256: bd6d67ded43bc1ad0799862cdfa6cacef398c2ea717b9259aeb8c30472fda3fa

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a lure for "Windows 10 pro key free" which is a common social engineering tactic. The embedded link directs to a known malicious redirector, indicating a phishing or malware distribution attempt. The PDF also hosts a large number of other links, suggesting it's part of a link farm designed to improve search engine ranking for malicious 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=windows+10+pro+key+free
- http://files.suncoastsoul.com/uploads/1/3/1/3/131379612/baretanemomimu.pdf
- http://files.teacakeandgaming.com/uploads/1/3/0/9/130969887/lovuvokubeke.pdf
- http://files.banyantreeatpavilion.com/uploads/1/3/1/8/131856234/jevepezun-rixuwolenozaki-gimulufuniw.pdf
- http://files.mukewatercreative.com/uploads/1/3/1/4/131410158/c9d5fabd451e2a1.pdf
- http://files.teresarobeson.com/uploads/1/3/0/8/130815115/vilagumeg.pdf
- https://cdn.shopify.com/s/files/1/0434/0776/9750/files/15044086601.pdf
- https://cdn.shopify.com/s/files/1/0433/7208/5406/files/74686382545.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/23631451812.pdf
- https://cdn.shopify.com/s/files/1/0433/5081/8981/files/wagirir.pdf
- https://cdn.shopify.com/s/files/1/0431/4644/4960/files/5184804188.pdf
- https://cdn.shopify.com/s/files/1/0432/7541/9798/files/varogugokun.pdf
- https://cdn.shopify.com/s/files/1/0433/3964/5093/files/56675003189.pdf
- https://cdn.shopify.com/s/files/1/0437/9715/1904/files/2546868142.pdf
- https://cdn.shopify.com/s/files/1/0431/2278/6466/files/nha_phlebotomy_study_guide.pdf
- https://cdn.shopify.com/s/files/1/0437/0199/3622/files/23743643976.pdf
- https://cdn.shopify.com/s/files/1/0438/5121/9104/files/85145404234.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 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000770f.bin` `784335d92307bd63cf78b8822f0aee9841c21226427c5c09c7ab24f20f184497`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x770F	4964 bytes
`font_01_sfnt_off0000881c.bin` `7fa47e14f311d3db0302c331b6fff76c659d1b3d749a1a09a0fa72ae809ba87a`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x881C	10268 bytes
`font_02_sfnt_off0000ab2d.bin` `4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xAB2D	4324 bytes

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