Malicious PDF — malware analysis report

Static analysis result for SHA-256 efeb7b78e4f99232…

MALICIOUS

PDF

34.5 KB Authoring application: Scribus
MD5: c3c584b3ed0faab9b9f824353709ea24 SHA-1: ce19ee7cde2faad8d95f72fdd81eb4c88ea5daa8 SHA-256: efeb7b78e4f992327e6c3e5bcfa2649195a8b8e4ce279728d36376b335aff285
150 Risk Score

Malware Insights

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

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 further malicious content. The ClamAV detection and ML classifier strongly suggest malicious intent, likely related to phishing or malware distribution.

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://modern-bliss.net/uploads/1/3/0/5/130543816/kototalupawapoz.pdf
    • http://www.ladysmithstoretodoor.com/uploads/1/3/0/6/130639836/zewitulotewuj.pdf
    • http://newlifesdaoh.org/uploads/1/3/0/7/130776344/48f59a6097ac.pdf
    • http://frontlineplusfordog.com/uploads/1/3/0/4/130476203/fec26bb677.pdf
    • http://www.rickmyatt.com/uploads/1/3/0/6/130603978/vobukaz_gofagajiromofif_wujot_mutorusojaxuzig.pdf
    • http://lesslessmoremore.com/uploads/1/3/0/2/130272281/473657.pdf
    • http://aaqmitigation.com/uploads/1/3/0/5/130551402/edc46537ad.pdf
    • http://www.criminallegalaid.ie/uploads/1/3/0/5/130550970/nanedogeg_somofodiwotu.pdf
    • http://thewallce.com/uploads/1/3/0/6/130604986/4204251.pdf
    • http://webdisk.ronbrownart.net/uploads/1/3/0/7/130739552/4781390.pdf
    • http://dcchosa.com/uploads/1/3/0/6/130621194/kalizekazene.pdf
    • http://kalajarvenlomakyla.fi/uploads/1/3/0/2/130288557/130288557.html#acatech+industrie+4.0+definition
    • http://aaqmitigation.com/uploads/1/3/0/5/1305

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002ecf.bin
7e2d7c5283622de07b24a1aa8e5abcb5a26bc665fd10952ee7d5fc1b91a6a96b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2ECF 8632 bytes

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