PDF malware analysis — malicious · 6976847ac3df1a80

MALICIOUS

PDF

37.3 KB Created: 2020-04-01 15:27:35 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)

MD5: 4ea494fc4a23f89c820dd569ba82817d SHA-1: e8536d54b4a8fbcd2a67fc086dfab13be961f43e SHA-256: 6976847ac3df1a8092f42c397fa1addb4cfc29e9b80559816884c97112133bff

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. The ML classifier also strongly indicated maliciousness. These links likely serve to direct users to malicious websites or to manipulate search engine results, a common tactic for distributing malware or conducting phishing campaigns.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 4

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.
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://luxurydaytours.com/uploads/1/3/0/8/130813967/130813967.html#nomenclatura+de+acidos+carboxilicos+ejercicios+pdf
- http://keepupwiththekeys.com/uploads/1/3/0/6/130605517/9222cf.pdf
- http://getavanty.com/uploads/1/3/0/6/130639973/tetaxomanizi.pdf
- http://nylenken.com/uploads/1/3/0/9/130970016/e8866d8e70.pdf
- http://woodandwhitegallery.com/uploads/1/3/1/1/131164278/zibesibe.pdf
- http://g2intelligencesolutions.com/uploads/1/3/0/2/130272606/lorotiwogefi.pdf
- http://jlpventures.com/uploads/1/3/1/4/131438693/1958496.pdf
- http://nealaccountingtax.net/uploads/1/3/0/3/130313190/zefuragasagip-vevow-siraxusedive.pdf
- http://advancedpsychiatricservices.net/uploads/1/3/0/8/130874493/860318cd7eea.pdf
- http://angelwheeler.com/uploads/1/3/1/3/131397938/8ea6c.pdf
- http://davidbellmd.com/uploads/1/3/0/4/130483577/nogorusarikabirusug.pdf
- http://debud.pl/uploads/1/3/0/3/130379246/8791572.pdf
- http://nnn-investing.com/uploads/1/3/0/7/130776089/bijavozar-bigorul-vakubumobeko-fugetoxoxuvob.pdf
- http://gislweb.info/uploads/1/3/1/3/131383777/ginapozozaxomo.pdf
- http://susanphilpot.com/uploads/1/3/0/6/130621867/931116.pdf
- http://beverlyhillsboba.com/uploads/1/3/0/6/130605438/zemod.pdf
- http://mobetterbrands.net/uploads/1/3/0/6/130620813/lugubowiloteg.pdf
- http://cultafrica.org/uploads/1/3/0/7/130740256/nanam-xixevesuden.pdf
- http://jcapitalex.com/uploads/1/3/0/7/130776745/kutafupapidonukiza.pdf
- http://www.castsafe.com/uploads/1/3/0/5/130541271/4bb132e0b136e7.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 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000687d.bin` `6c8237f0ac71d65f93c21b386c2f24b14928ec33e487e95a44d66db1998cdf15`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x687D	7828 bytes

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