PDF malware analysis — malicious · 0ddf1ca33d73edac

MALICIOUS

PDF

43.3 KB Created: 2020-07-06 14:00:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 9785ce2ced01c0df00fc65ebe6af1891 SHA-1: fbb952b7ed00a451e3630c82a831a7503fdc68c5 SHA-256: 0ddf1ca33d73edacdb8c95c7ec277fcbfbc2a89c3a708080592f254bfc667e62

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document contains a large number of external links, identified as a PDF link farm. The primary purpose appears to be directing users to numerous websites, potentially for SEO manipulation or to host further malicious content. No scripts were extracted, and the document body is heavily obfuscated, limiting deeper analysis of specific user lures.

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://files.snugglehose.com/uploads/1/3/1/8/131856533/131856533.html#master+pdf+editor+linux+terminal
- http://files.melaniemetzman.com/uploads/1/3/1/4/131408984/380816.pdf
- http://vuloop.shop/uploads/1/3/0/4/130435819/9914143.pdf
- http://files.scorpionbikewheels.com/uploads/1/3/0/7/130738565/3369023.pdf
- http://files.notronmfgsales.com/uploads/1/3/1/6/131607119/1807490.pdf
- http://people2peoplephotography.org/uploads/1/3/0/6/130604886/gidogedekik_jufejawime_xosijoxeguro_reviv.pdf
- http://giltnertraining.com/uploads/1/3/1/4/131437487/4173581.pdf
- http://thepartywallsurveyor.net/uploads/1/3/0/5/130551177/gexamiduf-tumutuwivusobas-soxozefu.pdf
- http://londonwillwriters.com/uploads/1/3/1/4/131453015/puvigoro.pdf
- http://ethos.guru/uploads/1/3/0/8/130813557/xadorivomojagore.pdf
- http://files.catherineemclean.com/uploads/1/3/1/4/131437924/43bf64d809676.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://gopisasiru.files.wordpress.com/2020/06/66077631076.pdf
- https://mowoguwexige.files.wordpress.com/2020/06/muwupe.pdf
- https://rafoxuzin.files.wordpress.com/2020/07/divofaxulonorebazoxes.pdf
- https://lolakukiz.files.wordpress.com/2020/06/bonatiwa.pdf
- https://sidulofu.files.wordpress.com/2020/07/xesofubezu.pdf
- https://saxikob.files.wordpress.com/2020/06/92868577406.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 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00006c29.bin` `efd48c6f0200a338af70b90fd32091c9e684e27106badb96f55b9dfd3f1b0f07`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6C29	5144 bytes
`font_01_sfnt_off00007d8c.bin` `9be3cd44a128bf0eb086d30d5bffc571486524ff1cc37e9b4bbabe8f75445faa`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7D8C	10248 bytes

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