PDF malware analysis — malicious · 0be0d0ff5e514fb3

MALICIOUS

PDF

45.7 KB Created: 2020-04-01 23:22:40 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)

MD5: 8e8d623d9104e9d0c5090bc7d8930612 SHA-1: e3f1aa05898be7543cc9bb52592aeffb349df5c7 SHA-256: 0be0d0ff5e514fb3734d5cd7ea0827de7f1f01d2240c9ffe84fffa14c1b40e2f

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF file contains a large number of external links, indicating a link farm or redirection scheme. The ML classifier strongly flagged this PDF as malicious, and the presence of numerous URLs suggests an attempt to direct users to potentially harmful content. No scripts were extracted, but the document body and heuristics point to a malicious intent to redirect users.

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://65bancker.com/uploads/1/3/0/8/130814010/130814010.html#manual+para+entender+el+juicio+de+amparo+adriana+campuzano
- http://estatenet.ca/uploads/1/3/1/1/131163578/eae10a2d92e69a.pdf
- http://microcompts.us/uploads/1/3/0/5/130551943/wigofebuleza-pasibow-tamigor.pdf
- http://giftcardguy.org/uploads/1/3/0/5/130538946/residetufizaj_lekeguxap.pdf
- http://jasonjoelharris.com/uploads/1/3/0/7/130776577/wugodudakefo.pdf
- http://missionbluecamp.org/uploads/1/3/0/9/130968976/eed4a.pdf
- http://detroitbeautyshow.com/uploads/1/3/0/7/130738723/sewutugaro_zunozixagujazon_zakofem_julejalexeduma.pdf
- http://rubiconrescue.com/uploads/1/3/0/7/130739063/00a5c5c9944e.pdf
- http://indulgeinyourbestlife.com/uploads/1/3/0/9/130969185/4bd584e.pdf
- http://herhoosierhousehold.com/uploads/1/3/0/8/130814252/1118303.pdf
- http://banhangthue.org/uploads/1/3/0/5/130546024/7655037.pdf
- http://nationalsteelbuildingsltd.com/uploads/1/3/0/7/130739560/84275f4e0864.pdf
- http://vouchermarketing.com/uploads/1/3/0/2/130272918/nunufozurive_gevomivod_ragifafoveraxur.pdf
- http://anthonymassarotto.com/uploads/1/3/0/3/130323884/labubone.pdf
- http://andreasdimitriou.com/uploads/1/3/0/8/130814467/wavavajewabe.pdf
- http://growingabilities.com/uploads/1/3/1/1/131163638/b0c8f0b93e40.pdf
- http://thecraftroomomaha.com/uploads/1/3/1/3/131398411/fonenete.pdf
- http://whiskeydarling.com/uploads/1/3/0/8/130814467/4fac076.pdf
- http://0negocios.biz/uploads/1/3/1/4/131483447/14c64af3.pdf
- http://itranssupport.pl/uploads/1/3/0/4/130489763/tunojuna.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_off000088f4.bin` `62abdaa157a768dc8e957bad58a20a647472ae9e0218c3c2cd1d87a0faec12ab`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x88F4	9024 bytes

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