Malicious PDF — malware analysis report

Static analysis result for SHA-256 ff321f48586787a3…

MALICIOUS

PDF

38.2 KB Authoring application: OpenOffice Draw
MD5: e4e10842b28214861c73a6e3a136c471 SHA-1: 84b9dd6d101cd04596117d9afcd22dc1e7f15de6 SHA-256: ff321f48586787a3202ccb8db15e6237b38f1b184fdd442916c963c251d0d415
152 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded URLs pointing to other PDF files hosted on various domains. This behavior is indicative of a link farm or a distribution mechanism for potentially malicious content. The ClamAV detection and ML classifier strongly suggest malicious intent, likely related to phishing or malware distribution. No scripts were extracted from this sample.

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://keepupwiththekeys.com/uploads/1/3/0/6/130639760/6c4ba.pdf
    • http://buhosbookreview.com/uploads/1/3/0/4/130476736/e5403.pdf
    • http://reduf.nauticflclub.org/uploads/2020/01/28/jewuti.pdf
    • https://delinibagifila.weebly.com/uploads/1/3/0/5/130545733/nagilofajub-lemutisusuvej-vamewoveliwe.pdf
    • http://eaugur.com/uploads/1/3/0/5/130588517/buzinirerazu.pdf
    • http://kod.garagrus.ru/uploads/2020/01/29/4e88cee29e38eb.pdf
    • http://sharalynedgeberg.com/uploads/1/3/0/4/130476513/gupanivugulejij-rorofuzazax-notixaruxegon.pdf
    • http://californiazion.com/uploads/1/3/0/5/130550920/dokoxememes-xanavod-nadomijuvelub.pdf
    • http://newenglandpowerlight.com/uploads/1/3/0/5/130588360/sepanewokize_zefulujonevawej_nunekoda.pdf
    • http://pornoizler.site/uploads/2020/01/28/bekipegibilorovafega.pdf
    • http://cecilyeiferle.com/uploads/1/3/0/5/130546759/130546759.html#capitulaciones+matrimoniales+formato

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001337.bin
6cc9745c7cb5bf93213a201b269ad8fa0cce2f21af2b031375ca8daad6536bd7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1337 9284 bytes

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