Malicious PDF — malware analysis report

Static analysis result for SHA-256 6174f71217722e07…

MALICIOUS

PDF

52.5 KB Authoring application: Nitro PDF
MD5: 73b53c3de7e433d7cb6f7155a3c9df59 SHA-1: ea1e13b5f10b09691cf459c81dfdb0cbb6d41aff SHA-256: 6174f71217722e074198e43691952bdfec5d2dfff92f306b259eab7f19282194
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file was flagged by multiple heuristics, including a critical alert for a large external link farm and a ClamAV detection for 'Pdf.Phishing.TtraffRobotInstall'. The embedded URLs strongly suggest a phishing or redirection campaign, aiming to lead users to malicious content. While no scripts were explicitly extracted, the nature of the embedded URLs and the heuristic findings indicate a high likelihood of malicious intent.

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.
  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • 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://allencabinetshop.com/uploads/1/3/0/2/130289254/fegoberulu-wakizas.pdf
    • http://authenticfreedomcoaching.com/uploads/1/3/0/5/130588843/gojupixodidon_gowefekumovadim.pdf
    • http://thelotuscast.com/uploads/1/3/0/5/130546076/numebaxitugezat_zodoxaj.pdf
    • http://naturalifeec.com/uploads/1/3/0/7/130775800/f2ad59e27c704c.pdf
    • http://www.disabilityresearch.org/uploads/1/3/0/8/130813489/disudejevafasaxinu.pdf
    • http://littlebrasselephant.com/uploads/1/3/0/3/130379049/dd16a53737.pdf
    • http://emailmarketing507.com/uploads/1/3/0/6/130604335/tevibamitasexid.pdf
    • http://libertyfiltration.com/uploads/1/3/0/6/130605493/dituvirafupog.pdf
    • http://barnyardbidders.com/uploads/1/3/0/7/130739923/sasabuxe.pdf
    • http://ayudandoteacrecer.com/uploads/1/3/0/5/130551059/8337661.pdf
    • http://australiancrusadersparty.com/uploads/1/3/0/2/130289723/bukig.pdf
    • http://dtailspetboutiquespa.com/uploads/1/3/0/4/130476684/batepotiv.pdf
    • http://inspiredmillennials.org/uploads/1/3/0/4/130476101/nugijonu-vutunig-nojoteki-memez.pdf
    • http://www.louiseashcroft.org/uploads/1/3/0/7/130775604/wipojuna-riradaxomexorap-jigovukomefu-lujirotemul.pdf
    • http://foundationsblackhistory.org/uploads/1/3/0/2/130289290/7791847.pdf
    • http://webmail.justanothersunday.com/uploads/1/3/0/5/130588885/130588885.html#greensleeves+piano+accompaniment+sheet+music

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001217.bin
76991938ce38993c07e0e079098930a4c7b573e22d092acd83915a7b2907026f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1217 9908 bytes

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