PDF malware analysis — malicious · 03244a56a047d47b

MALICIOUS

PDF

35.1 KB Created: 2020-06-11 23:08:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: b2baaab578abf74d21ed17426c603452 SHA-1: dcf76466c92a30cb0cac0a388284f71e16961798 SHA-256: 03244a56a047d47bf9727a57bf038170bd56838b42e02b656d89bb3bc37c06b0

136 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document exhibits characteristics of a phishing lure, specifically a Multi-Factor Authentication (MFA) or one-time-code harvesting scam. It contains a large number of embedded links, many of which point to suspicious domains and appear to be part of a link farm designed to obscure the true destination. The ML classifier strongly indicated maliciousness, and the presence of numerous external links suggests an attempt to redirect the user to a malicious site.

Machine Learning

Nyx PDF Classifier malicious score 0.9999

Heuristics 5

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.
MFA / one-time-code harvesting lure high SE_MFA_LURE

Document asks for a one-time code, authenticator approval, or MFA confirmation — consistent with credential phishing kits that steal session tokens or abuse multi-factor authentication
External URI info PDF_URI

PDF contains an external URL action
Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL

The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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 http://hostmaster.ruthscurr.co.uk/uploads/1/3/0/4/130490609/130490609.html#polycom+hdx+7000+user+guide
- http://hostmaster.baewingauthor.com/uploads/1/3/0/3/130313468/ladirudefujexanenido.pdf
- http://promomark.net/uploads/1/3/1/4/131437423/8deeede9cd2.pdf
- http://newfoundationsaba.com/uploads/1/3/0/5/130588805/fojoxotapose.pdf
- http://bychoicewellness.com/uploads/1/3/1/4/131407965/nunabifesu-repoto-zajofobimubat-gojutepeva.pdf
- http://mtperrymechanicsptyltd.com/uploads/1/3/0/5/130551475/2f675.pdf
- http://emilydelbridge.com/uploads/1/3/0/2/130291908/rawox.pdf
- http://grovphotography.com/uploads/1/3/1/4/131437750/mipusax.pdf
- http://erniebauer.com/uploads/1/3/2/3/132303235/bexamerotikodaza.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://wakukozid.files.wordpress.com/2020/06/morumamafixowufofel.pdf
- https://fosapab.files.wordpress.com/2020/06/kofurobuvi.pdf
- https://gafoxozu930545477.files.wordpress.com/2020/06/betoziminiwetoxagik.pdf
- https://mosogatejos.files.wordpress.com/2020/06/boduxewibu.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/
- http://scripts.sil.org/OFL

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00005d54.bin` `3b577dd2318b13002af2d8be7fde2a1d31f4296ee2b57d9c921984abfb18796a`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5D54	10580 bytes

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