PDF malware analysis — malicious · 7f0658e476700d2f

MALICIOUS

PDF

40.2 KB Created: 2020-03-12 12:15:25 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)

MD5: 2ff03b926681fb82a0655a6b18d11b79 SHA-1: 0a6357080ebbc03c0db445d0d86d1bc663f77b41 SHA-256: 7f0658e476700d2f304534ac6fd0a90317dc31d78eff70f9b74cc98b976c37ed

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1105 Ingress Tool Transfer

The PDF contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. These links point to various PDF files hosted on unrelated domains, suggesting a link farm or SEO spam operation. The primary URL http://ywbhe.bpmtc.com/uploads/1/3/0/6/130621568/130621568.html#airtel+dth+packs+channels appears to be a lure, possibly related to content delivery or further redirection.

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://ywbhe.bpmtc.com/uploads/1/3/0/6/130621568/130621568.html#airtel+dth+packs+channels
- http://loveletterpoetry.com/uploads/1/3/0/7/130775737/a11c567482.pdf
- http://usaerofilms.com/uploads/1/3/0/5/130551483/7490912.pdf
- http://www.shedesignsforyou.com/uploads/1/3/0/2/130289290/negapo_dalonozen.pdf
- http://tamiekasmithphotography.net/uploads/1/3/0/7/130739561/8910267.pdf
- http://ehrbutton.com/uploads/1/3/0/4/130489475/452949df35.pdf
- http://brookstonwagyu.com/uploads/1/3/0/6/130621313/nogux_firinosup_vakunimirozotu_zugugofovariv.pdf
- http://culver3v3invitational.com/uploads/1/3/0/8/130873802/tuwukupepukoje.pdf
- http://hismaidservant.com/uploads/1/3/0/7/130775572/pikozelopim-jatuxasit-govewiwusume.pdf
- http://cuestionentrerriana.com/uploads/1/3/0/7/130776449/88231359.pdf
- http://heppnereng.com/uploads/1/3/0/4/130483114/5072346.pdf
- http://equilibrium21.online/uploads/1/3/0/3/130323092/2463151.pdf
- http://riceblack.com/uploads/1/3/0/2/130291582/nivazuzimaru.pdf
- http://dfm-tickets.com/uploads/1/3/0/5/130589384/a878780c00.pdf
- http://sellyourhomeintucson.com/uploads/1/3/0/6/130604349/tilawa.pdf
- http://merissawrites.com/uploads/1/3/0/6/130639532/wuworobosip.pdf
- http://antarctic-huh.com/uploads/1/3/0/5/130590567/9e7e55a504bed.pdf
- http://bestestcasinos.com/uploads/1/3/0/3/130323268/wizoxezarel_pekerejob_kidazavuleg.pdf
- http://rivendellberry.com/uploads/1/3/0/5/130551247/zudoj-xemuwaro-pulosub.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_off0000726d.bin` `0d511ddf48d95bf15f11b713fdd4e929c0eb3d34e456d4af801ac109fb74f321`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x726D	8552 bytes

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