Malicious PDF — malware analysis report

Static analysis result for SHA-256 6df3208e018d2ac3…

MALICIOUS

PDF

33.8 KB Authoring application: PDFBox
MD5: 8a5a3e68ec670c172ddb69acc3b5ee07 SHA-1: 25b03fedee41787e79f00f29b4b995a353db48d1 SHA-256: 6df3208e018d2ac365cb076a8ea2e7a0c0dd7ac2efe024b32c2a67840b1764c3
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic, pointing to other PDF files. ClamAV detection as Pdf.Phishing.TtraffRobotInstall-7605656-0 and the ML classifier output strongly indicate malicious intent. The embedded URLs are likely used to distribute further malicious content or for SEO spam.

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://fionaborrelli.com/uploads/1/3/0/4/130476069/mowexikuboxa_baxokifade_gomiv_tevodig.pdf
    • http://drew-powell.com/uploads/1/3/0/5/130551294/gixejudanexavox.pdf
    • http://takeatriprentals.com/uploads/1/3/0/3/130323707/2497517.pdf
    • http://mcpeakeandcompany.net/uploads/1/3/0/5/130550817/mifixawaxeju_pedamulujetu_dobilidoji_waxejuvanidumab.pdf
    • http://ramnathsiddicommunitycentre.com/uploads/1/3/0/8/130813054/7fef6a76a8edd.pdf
    • http://ucscustombuilders.com/uploads/1/3/0/3/130313370/e45fd639630d.pdf
    • http://www.smyrnahomeperformance.com/uploads/1/3/0/7/130738628/3940429.pdf
    • http://startuparabia.com/uploads/1/3/0/5/130588718/6315266.pdf
    • http://newbornumc.org/uploads/1/3/0/4/130435813/xeparus_gupexofirexol_vonapagimib.pdf
    • http://www.luxealbania.com/uploads/1/3/0/6/130639093/2714792.pdf
    • http://newimagesfencing.com/uploads/1/3/0/6/130639559/5f7a78d9a81bdce.pdf
    • http://www.polinagavria.com/uploads/1/3/0/9/130969011/04668.pdf
    • http://aqualitylearningacademy.online/uploads/1/3/0/8/130814402/1acac8c84.pdf
    • http://www.trippygoods.com/uploads/1/3/0/3/130323622/mapimabagati_gememivipel_mimujogek.pdf
    • http://flember.com/uploads/1/3/0/6/130639591/tefabejejutop.pdf
    • http://mentalis.info/uploads/1/3/0/2/130287973/6475816.pdf
    • http://host44.carmichaelnl.com/uploads/1/3/0/9/130969873/130969873.html#present+perfect+past+simple+english+exercises

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000027f4.bin
e26197aed7732803d10c5a819a1953e70affb06449e6e8e34de5fd0163ab48f6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27F4 7864 bytes

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