Malicious PDF — malware analysis report

Static analysis result for SHA-256 4360acb216311c87…

MALICIOUS

PDF

33.5 KB Authoring application: OpenOffice.org
MD5: 15fb9ef212fa1257b8e087737880e28b SHA-1: ebef74d21c0d52a63f460ab09d00073d5fc19a29 SHA-256: 4360acb216311c873cfdcb5838f3fb19b370e981292f7e2818b6845ff1efb4be
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 links to external PDF files hosted on various domains. This behavior is indicative of a link farm or a phishing campaign designed to redirect users to malicious content. The ClamAV detection and ML classifier further support its malicious nature.

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://peanutline.net/uploads/1/3/0/2/130274091/jojejumiworigisezigo.pdf
    • http://nwm8.club/uploads/1/3/0/4/130476006/nepisomus-femetavamiwuju-bupoti.pdf
    • http://conquercoffee.com/uploads/1/3/0/7/130776743/2734968.pdf
    • http://manukabestqualityhoney.com/uploads/1/3/0/9/130970001/2617625.pdf
    • http://connectionsonthebay.com/uploads/1/3/0/7/130776027/dibamileniviwod.pdf
    • http://localtreepros.dadgifts.us/uploads/1/3/0/4/130476145/tuveb.pdf
    • http://anovotekonline.com/uploads/1/3/0/6/130604708/7933078.pdf
    • http://triptexts.com/uploads/1/3/0/2/130270932/7045759.pdf
    • http://webdisk.ruandehart.com/uploads/1/3/0/6/130622024/5053083.pdf
    • http://andantemk.org/uploads/1/3/0/6/130604801/masavom.pdf
    • http://deanamacneil.com/uploads/1/3/0/3/130313368/nelusoxuse_lusubaz_lazepu_kuzomisidal.pdf
    • http://partywife.net/uploads/1/3/0/7/130775277/patitovemebiz.pdf
    • http://zoombuyz.com/uploads/1/3/0/3/130323697/6883373.pdf
    • http://metalpourspouts.com/uploads/1/3/0/5/130589195/a9a4ce0e7d3c6.pdf
    • http://www.sarahgillprojectmanagement.com/uploads/1/3/0/7/130776366/130776366.html#time+from+yield+curve+inversion+to+recession
    • http://metalpourspouts.com/uploads/1/3/0/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002ac7.bin
b4551d26324ffd92a4e0ac1024ab212772d9d074a46b65bae69bd819b9fffb75		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2AC7 7332 bytes

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