PDF malware analysis — malicious · 13f79703f90b176d

MALICIOUS

PDF

32.2 KB Created: 2020-06-10 01:46:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 36e937ada6a41a09852a67b55b8b2be0 SHA-1: e06b9aeab7580b7cee9012aa2761eaf9dc408c10 SHA-256: 13f79703f90b176d371a9f9977eab1f033e4de7bf651bcc3e267ce6c4883ea2d

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF contains a large number of external links, identified as a 'PDF_SEO_LINK_FARM' heuristic. The embedded document body also contains several of these URLs, suggesting the primary purpose is to direct users to external content. The ML classifier also flagged this PDF as malicious with high confidence. The presence of numerous external links suggests a potential attempt to manipulate search engine results or host malicious content on linked pages.

Machine Learning

Nyx PDF Classifier malicious score 0.9999

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://sundancertradingco.com/uploads/1/3/0/6/130605074/130605074.html#red+hat+enterprise+linux+storage+administration+guide
- http://webdisk.lmairtech.com/uploads/1/3/0/9/130969003/94f1043627b.pdf
- http://floriowoodworking.com/uploads/1/3/0/3/130379231/3727888.pdf
- http://bluemarbleexplorer.voyagerwebsites.com/uploads/1/3/0/8/130815026/3548411.pdf
- http://uses2018.org/uploads/1/3/1/4/131452840/gapivu.pdf
- http://freedomballoonfestival.com/uploads/1/3/0/4/130483860/3b28616867c5f0.pdf
- http://emmaburns.net/uploads/1/3/0/5/130588763/bbdb8391.pdf
- http://dwtaylor.com/uploads/1/3/0/6/130604350/ribaruziko_rewosufek.pdf
- http://strudlennoodle.com/uploads/1/3/1/4/131406582/wisusuneni-wusokesi-tenizatopusu-gojovov.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://rebofowi.files.wordpress.com/2020/06/tizowudupunumagofeza.pdf
- https://kuramajibi.files.wordpress.com/2020/06/lozatu.pdf
- https://tamuvonitu.files.wordpress.com/2020/06/janopekonipegadoj.pdf
- https://vumigiwup.files.wordpress.com/2020/06/joxejumaxorelog.pdf
- https://zemuderowu.files.wordpress.com/2020/06/55304292095.pdf
- https://giwoxomexe.files.wordpress.com/2020/06/30773953632.pdf
- https://zoxuwij.files.wordpress.com/2020/06/725555474.pdf
- https://motonukem.files.wordpress.com/2020/06/94801313838.pdf
- https://wiginikinu.files.wordpress.com/2020/06/kavirovegoxekezujap.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_off00005134.bin` `08deed3b52192bb31e928538df57b1ad4ddaf9400ff206ae950a21d94ea6411c`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5134	10616 bytes

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