Malicious PDF — malware analysis report

Static analysis result for SHA-256 c3d69050d5c0fed6…

MALICIOUS

PDF

45.0 KB Created: 2020-04-02 02:56:39 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: dde8d860e652570804e2746d3817366f SHA-1: f4295849b469d1ff79660b0ab0c2cfc691dbaf2e SHA-256: c3d69050d5c0fed6ad0369879029f6f7193be8ce89a08311278bd12e2abaaf42
94 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of external links to other PDF files hosted on various domains. This behavior is indicative of a link farm or a distribution mechanism for further malicious content. The ML classifier strongly flagged this PDF as malicious, supporting the assessment of a malicious intent. No scripts were extracted, limiting the analysis of direct payload execution.

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://bassslandscapinglawncare.net/uploads/1/3/1/4/131453027/131453027.html#ethiopia+constitution+1931
    • http://artismarnie.com/uploads/1/3/0/6/130604986/tonamezipatadetesa.pdf
    • http://kantalewhitepark.com/uploads/1/3/0/6/130604951/dosebogowibojude.pdf
    • http://cuttingedgelawncare.org/uploads/1/3/0/7/130776088/6695224.pdf
    • http://spcprinting.com/uploads/1/3/1/3/131398443/cbcdd1.pdf
    • http://yourjourneytravel.com/uploads/1/3/0/2/130291415/vadozafomini_zuwived_rufiselom.pdf
    • http://lonigro.ch/uploads/1/3/0/2/130287278/kijelolifik_xekamar_fugeso.pdf
    • http://robthompsonmassage.com/uploads/1/3/0/6/130639021/tazavefuwoxuj.pdf
    • http://themountainforge.com/uploads/1/3/0/7/130775164/bamowewivugike.pdf
    • http://livraexpress.ch/uploads/1/3/0/2/130289301/5304536.pdf
    • http://stitchmestudios.com/uploads/1/3/0/7/130776366/vebizus.pdf
    • http://roleafm.com/uploads/1/3/0/6/130639728/33121.pdf
    • http://zahnallianz.biz/uploads/1/3/0/5/130589207/8131150.pdf
    • http://cupidcardgame.com/uploads/1/3/0/8/130813646/sadusole-wejomuzulo-tinigubo.pdf
    • http://stephaniebainyoga.com/uploads/1/3/0/6/130605390/1779e4ca.pdf
    • http://royalthronelavatories.com/uploads/1/3/0/2/130272613/12f51b14d2629d.pdf
    • http://pressingthrough.faith/uploads/1/3/0/4/130483819/66a2df0e0a98f.pdf
    • http://parashantiyoga.com/uploads/1/3/0/8/130813428/tozujasakogu-vuzovedejunuze-fosanugumaj-gijadulafoxa.pdf
    • http://thegeeksdomain.com/uploads/1/3/0/4/130476565/8168611.pdf
    • http://rainbowriversongs.org/uploads/1/3/1/4/131454521/3484cf.pdf
    • http://nanaimohomeinspection.com/uploads/1/3/0/7/130739633/vanajum.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.

FilenameKindSourceSize
font_00_sfnt_off000087b9.bin
673a2c13c0bf99045e6c4f6c5d1083deff080a996c47a72dd49fe46c4af09e72		 pdf-font-stream PDF embedded font (sfnt) at offset 0x87B9 8020 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.