PDF malware analysis — malicious · 64ebc9d13ec4a8a4

MALICIOUS

PDF

47.1 KB Created: 2020-06-08 23:01:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 697211b89241ccde563a3aaeed683d8d SHA-1: f570494b54217ca45a528a63b7fd5824dd545a34 SHA-256: 64ebc9d13ec4a8a4a7f6549c18caff802623ce3bd0f07ff75f468fedb7576ff2

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains a large number of external links, identified as a link farm, pointing to various domains. The ML classifier strongly indicated maliciousness, and the PDF_SEO_LINK_FARM heuristic confirms the presence of numerous external PDF links. The embedded URLs suggest an attempt to redirect users to potentially malicious content or phishing sites.

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://melbournehotel.devsite-1.com/uploads/1/3/0/5/130541765/130541765.html#http%253A%252F%252Fdeeperhealingministries.org%252Fuploads%252F1%252F2%252F9%252F3%252F129358120%252F129358120.html%253Foppo+bdp+103d+darbee+edition
- http://enendeavors.com/uploads/1/3/0/4/130436165/6820b13e0b0.pdf
- http://mixedmedia.nz/uploads/1/3/0/6/130620704/xajivunejuzof.pdf
- http://alexandercranewriter.com/uploads/1/3/1/3/131380316/45799.pdf
- http://jrosefeidnerphotography.com/uploads/1/3/0/5/130548070/jivazokiguvef_miseretizopax.pdf
- http://albiruniinc.com/uploads/1/3/0/6/130621956/7774441.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://topafajanew.files.wordpress.com/2020/06/fusosames.pdf
- https://zunovaxolupo118517497.files.wordpress.com/2020/06/zufifejivufofevozo.pdf
- https://memizogowuma.files.wordpress.com/2020/06/doxefekonugu.pdf
- https://zunuxav.files.wordpress.com/2020/06/garunenubonizumawuxurafuw.pdf
- https://gotexutag798502486.files.wordpress.com/2020/06/52318717582.pdf
- https://manuwonakano.files.wordpress.com/2020/06/pamoko.pdf
- https://xuvisoje.files.wordpress.com/2020/06/xegunoworigikusas.pdf
- https://takekidelof.files.wordpress.com/2020/06/55572539785.pdf
- https://jabobotomaso.files.wordpress.com/2020/06/97114309154.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
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00007430.bin` `7d21c47a664e9e8e7a28ee83bd9266e13d4a8738e8ccf8498d278c18275ae1af`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7430	10944 bytes
`font_01_sfnt_off000099be.bin` `c988415812f594187b0a0ed75dc52802e798e1695b49bd300f8412a65040a449`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x99BE	16204 bytes

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