Malicious PDF — malware analysis report

Static analysis result for SHA-256 fac8340359ba6f8a…

MALICIOUS

PDF

37.3 KB Authoring application: LibreOffice
MD5: bbbc7cbde9d8c64fe11c32772e5a8c58 SHA-1: fff068abb2c0f5d2d034b799a7d078b020810b15 SHA-256: fac8340359ba6f8aee64b82b8036d73c570c6c3bd4570af8783f2bb8b9766e3e
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious File

The PDF file was flagged by multiple heuristics, including a critical alert for a link farm containing numerous external PDF URLs. The ML classifier also assigned a high probability of maliciousness. The embedded URLs suggest a phishing or traffic-driving campaign, aiming to lure users to download further malicious content or visit compromised websites.

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://simyasuaritma.com/uploads/1/3/0/4/130488243/bivinafibugoxevefa.pdf
    • http://desatascosgranollers.org/uploads/1/3/0/6/130620709/didana.pdf
    • http://canvasland.ru/uploads/2020/01/29/wavasabe.pdf
    • http://mrkrieg.com/uploads/1/3/0/6/130639268/04ff209e0ab9b33.pdf
    • http://michelledabundo.com/uploads/1/3/0/5/130543995/232530c4641a8d.pdf
    • http://michelleshero.com/uploads/1/3/0/6/130639313/ralurodapin.pdf
    • http://birthingintentionally.com/uploads/1/3/0/5/130589454/jenagadudijuragej.pdf
    • http://kingdomartisans.org/uploads/1/3/0/5/130588477/6372553.pdf
    • http://lufefuxiz.lulacrib.com/uploads/2020/01/29/cad392.pdf
    • http://acadianaphoto.com/uploads/1/3/0/6/130640110/2503691.pdf
    • http://miami.momotombochocolatefactory.com/uploads/1/3/0/6/130639177/130639177.html#cost+accounting+theory+pdf

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000011cb.bin
393f91e16d57147980f1c6ea0bfeb090e4c1e9a3dea926939facbe99fb772c44		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11CB 7652 bytes

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