PDF malware analysis — malicious · 7f010de02d9922df

MALICIOUS

PDF

46.0 KB Created: 2020-04-01 15:16:54 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)

MD5: 251bc8db15cc90f5cf9765535800a2b9 SHA-1: e3975cc749fa3469b639c893aef5c2157b1429cb SHA-256: 7f010de02d9922dff8d29d62aeb88081f574722f791586c03adbb72c9c7623c3

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document exhibits characteristics of a link farm or SEO spam, embedding a large number of external URLs. The primary heuristic indicates a 'PDF_SEO_LINK_FARM' with 20 external links, suggesting an attempt to manipulate search engine rankings or direct traffic to potentially malicious sites. While no scripts were directly extracted, the embedded URLs themselves are the primary indicators of malicious intent, likely serving as lures or downloaders.

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://homesbyesthermillieramos.com/uploads/1/3/0/4/130476141/130476141.html#rick+steves+paris+hotels+2017
- http://freeteacher.org/uploads/1/3/0/6/130620819/347207c857235d.pdf
- http://satzkom.com/uploads/1/3/1/0/131070178/zafobomejimuvuk.pdf
- http://reliablecontgrp.com/uploads/1/3/1/3/131383645/b332e1c407.pdf
- http://meditationconsciousness.info/uploads/1/3/1/3/131381332/6613e94dc1b.pdf
- http://enlightenedastrologycourse.com/uploads/1/3/0/5/130588747/ketopi_pogivila.pdf
- http://milenatensaye.com/uploads/1/3/0/7/130776069/sarirefovuled_rujusa.pdf
- http://crossboxinternational.com/uploads/1/3/0/5/130590462/4529604.pdf
- http://barbandcarl.com/uploads/1/3/0/3/130313179/8015065.pdf
- http://flyingowlexhibitions.com/uploads/1/3/0/8/130815192/fosekimon-faxegenejuti.pdf
- http://emf2.org/uploads/1/3/0/2/130289317/xadepusoz.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- 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/
- https://fedoraproject.org/wiki/Licensing/LiberationFontLicense
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00006a7b.bin` `080719eaa58001a8946a3bf97a16246016ea21d2e9e12b0619c064c45a685b98`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6A7B	9492 bytes
`font_01_sfnt_off00008cc9.bin` `7466f12abaaa7f3061b2eee0fbea2aff938e674d3fe107531bc2e00f9f0dfbcf`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8CC9	2600 bytes
`font_02_sfnt_off000095f4.bin` `779aa567746046747dac965df7fdfb06ff632674a0a99ce247a327bf89f0fa63`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x95F4	16036 bytes

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