PDF malware analysis — malicious · 630eb35dfb585728

MALICIOUS

PDF

39.3 KB Created: 2020-03-21 16:43:09 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)

MD5: 84321790b32e44fba7d936bc79e1010f SHA-1: c0aefb286da536dc1a8e98ac6490882dbc94c46c SHA-256: 630eb35dfb5857289ba34b49892a64a210ea26dbe1bcf0aaa97211d9c0101179

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a large number of embedded external links, indicating a potential link farm or redirection scheme. The ML classifier strongly flagged this PDF as malicious. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest an attempt to direct users to potentially harmful content or for SEO manipulation.

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://resolvescientific.com/uploads/1/3/0/2/130291555/130291555.html#canto+mi+dios+esta+vivo+con+acordes
- http://faithfx-investments.com/uploads/1/3/0/6/130604205/f458862.pdf
- http://3dprintinggeelong.com.au/uploads/1/3/0/5/130590412/mitijet_nimugalutipuz_jiposef.pdf
- http://jesusbranch.com/uploads/1/3/0/8/130814411/ririmuzesufa.pdf
- http://www.frankieshin.net/uploads/1/3/0/7/130775821/1973927.pdf
- http://www.fishercreekfcr.com/uploads/1/3/0/5/130551212/jidok-wekeloxuvosotex-bapusorulesekak-refabuduni.pdf
- http://nysmaplepartridge.com/uploads/1/3/0/6/130621296/9124478.pdf
- http://rsrproperties.net/uploads/1/3/0/6/130640019/xufiguvo_sodeme_liwaxazivi_ferozigutuvir.pdf
- http://michellesusanmarketing.com/uploads/1/3/0/5/130539097/volotitu-viwonerexizibu-gawuseti.pdf
- http://importlinkglobe.com/uploads/1/3/0/5/130542875/8670520.pdf
- http://talkingcrypto.org/uploads/1/3/0/8/130814004/sagolizagabi.pdf
- http://misiupapier.com.au/uploads/1/3/0/8/130813732/70b7b61c1ee.pdf
- http://sevencedarsdesign.com/uploads/1/3/0/7/130775374/mokutuf.pdf
- http://surgehub.org/uploads/1/3/0/2/130289345/nilugejuz.pdf
- http://pyperslegacy.com/uploads/1/3/0/4/130476378/gudit.pdf
- http://www.wowmandarin.com/uploads/1/3/0/6/130604982/buzigajobek.pdf
- http://onedaypopcornremoval.com/uploads/1/3/0/2/130288854/d198ae2553.pdf
- http://mbyj.net/uploads/1/3/0/5/130550754/zupawesavog_lapavir.pdf
- http://livyluu.com/uploads/1/3/0/2/130289430/dubemarikinijazara.pdf
- http://innercircleconsultinginc.com/uploads/1/3/0/9/130969059/robifewax.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_off00006d78.bin` `f9b17872a5904002215264bd282cf3a8a053e7ffa274759fd4a60c59cd71b3b5`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6D78	9144 bytes

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