PDF malware analysis — malicious · cd7b0ae9afc02923

MALICIOUS

PDF

34.6 KB Created: 2020-09-16 19:33:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 012b1eaffb4ba28709b046f6d26836ee SHA-1: a102b99a2a9a0aa30688e0854ee6b4cbea1ea4df SHA-256: cd7b0ae9afc0292362f47a55311de79444678bb7adcc35a1b0d08dea61b6b679

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 many links pointing to potentially malicious domains. One critical heuristic identified a link to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains a URL that appears to be a lure for a 'eureka central vacuum manual', which is likely a pretext for directing users to malicious content. The ML classifier also strongly indicated maliciousness.

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.me/wix?keyword=eureka+central+vacuum+manual
- http://pokutobe.tattyb.com/uploads/1/3/1/3/131384380/6823571.pdf
- http://files.northernbeachescleanupcrew.com/uploads/1/3/0/7/130739450/1b928af2.pdf
- http://pepusa.improvementscientist.com/uploads/1/3/1/3/131383914/e79425d31210d.pdf
- http://dijaj.alexandrakwilson.co.uk/uploads/1/3/0/7/130775583/9739368.pdf
- https://cdn.shopify.com/s/files/1/0432/2269/6096/files/27719860775.pdf
- https://cdn.shopify.com/s/files/1/0437/6815/2216/files/dlab_study_guide_2019.pdf
- https://cdn.shopify.com/s/files/1/0439/2520/9256/files/bilerag.pdf
- https://cdn.shopify.com/s/files/1/0447/8317/3798/files/avengers_civil_war_movie_full.pdf
- https://cdn.shopify.com/s/files/1/0428/2541/6860/files/xezinevafik.pdf
- https://c4a34fbb-5d77-4fe3-a741-292f96b52d27.filesusr.com/ugd/dec231_8f74ed49e31b4ecb887b6529c9d4ca92.pdf?index=true
- https://924354a2-4426-4f7b-9d0e-8a07c2925972.filesusr.com/ugd/769f78_7ac40ba14e294aa1b9441675c5d53eb9.pdf?index=true
- https://e5a37d09-329a-4172-8953-7090a636644c.filesusr.com/ugd/237bf7_3fca4f9a04394e12b7c3f35c862eb1f8.pdf?index=true
- https://37bd66b5-067a-4567-8449-a802aacdf08d.filesusr.com/ugd/bdc04d_6535f230dea54bf2ab8fa3c41982cddb.pdf?index=true
- https://b5f99370-bada-4ba5-bbcb-378c4d4dfa36.filesusr.com/ugd/b56239_feb40729ad654318bbf15fec45bff121.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_off00004a3a.bin` `07182b99e381e39e30cae344714587b5abc55c96bf9f78b2f78be446e37eab0e`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x4A3A	4848 bytes
`font_01_sfnt_off00005ab0.bin` `6e6d15ea7c40501c4a971841406de5a94894499e4647648b0ae1520054bc4bac`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5AB0	10256 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.