Malicious PDF — malware analysis report

Static analysis result for SHA-256 d50f955b0be34b61…

MALICIOUS

PDF

85.1 KB Created: 2020-03-30 18:51:07 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: b426be249adc08981d9d6caa6f4f079a SHA-1: 50a3c99e4da9d68f953f94fa8d52cc5d536d29c6 SHA-256: d50f955b0be34b61fe22c698228a1f609a506565d6fba80bf1f4512f78c68afa
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF document contains a large number of external links, many of which point to other PDF files hosted on various domains. The document body text, though partially corrupted, contains a lure related to 'cheat codes for call of duty black ops zombies ps3' and includes a URL to evokefitness.net. This suggests a link farm or SEO poisoning tactic to drive traffic to potentially malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • 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
  • 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://evokefitness.net/uploads/1/3/1/3/131383775/131383775.html#cheat+codes+for+call+of+duty+black+ops+zombies+ps3
    • http://pranaprenatal.com/uploads/1/3/0/8/130813108/gekuwomexuji-levuti-pejin-bipatuxa.pdf
    • http://luebkehousebooks.com/uploads/1/3/0/2/130270893/9642393.pdf
    • http://arnolddesignresources.com/uploads/1/3/0/7/130740084/temuneleve_xidinovibalij_guravoso_futikopovifab.pdf
    • http://combatlaseroverload.com/uploads/1/3/0/6/130604807/2e53d.pdf
    • http://sarah-leavitt.com/uploads/1/3/0/4/130489530/niwojepumadisa.pdf
    • http://lyndajeanmoments.com/uploads/1/3/1/0/131070196/9289099.pdf
    • http://lucidstaging.com/uploads/1/3/0/5/130590159/283953.pdf
    • http://classysretrofits.com/uploads/1/3/0/4/130476908/zaxuladojuwuz.pdf
    • http://eternaljoycleaning.com/uploads/1/3/0/6/130620957/fasug-momojutuzud-tipuvogoribeta.pdf
    • http://ymsm.agency/uploads/1/3/0/6/130621942/14df57.pdf
    • http://migrantliteraturejournal.com/uploads/1/3/0/4/130436202/xavevojelenuxus_xibasebujopeg_pufolafixas_naxoziterogiper.pdf
    • http://tessapaige.net/uploads/1/3/0/2/130289282/kivimotepe.pdf
    • http://amtexinsurancetx.live/uploads/1/3/0/9/130969858/gazor.pdf
    • http://macksnack.com/uploads/1/3/0/4/130490036/koxozolodavebi-menifobolebaxip-gikusemuxiv.pdf
    • http://trustcare247.com/uploads/1/3/0/6/130620159/4488083.pdf
    • http://northshoresolutions.com/uploads/1/3/0/5/130589396/loserujofugepizuka.pdf
    • http://theanfchurch.com/uploads/1/3/1/3/131379410/224b0.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_off000126cd.bin
228e75fd3f075ca862635c9bb9456799257d895773c28c5540eca0f40f3eb4bc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x126CD 8220 bytes

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