Malicious PDF — malware analysis report

Static analysis result for SHA-256 b5c587fce0980b9f…

MALICIOUS

PDF

38.0 KB Authoring application: ImageMagick
MD5: 9ee5231df8749b5eb61058e808a740fc SHA-1: 33c09dca625d4c7c8ce32a835940d7a63b90990f SHA-256: b5c587fce0980b9fc55b0b87b704177ee5539347c47484d28b996956dacbc89d
150 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics as malicious, including a critical finding for a large external link farm. The embedded URLs point to various domains, all hosting PDF files, suggesting a coordinated effort to distribute malicious content or phish users. The ML classifier also strongly indicated maliciousness. 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://carlosnarrovigo.org/uploads/1/3/0/4/130488100/xemagevir_losaxugon.pdf
    • http://www.lazynutrition.net/uploads/1/3/0/3/130324440/6028839.pdf
    • http://2strong2quit.com/uploads/1/3/0/8/130813992/dajavuxo.pdf
    • http://www.k7climbing.com/uploads/1/3/0/7/130775521/4295011.pdf
    • http://slforeignpolicy2017.lk/uploads/1/3/0/6/130604433/105bdf51767180.pdf
    • http://www.dkdesignnh.com/uploads/1/3/0/7/130775222/2906660.pdf
    • http://ezcards.com/uploads/1/3/0/8/130814644/paxolali_muban_wobade.pdf
    • http://desatascosbarcelona.com/uploads/1/3/0/4/130435712/wigezoku.pdf
    • http://notjustanotherhomosexual.ca/uploads/1/3/0/6/130621058/nimezo.pdf
    • http://tipologiagourmet.com/uploads/1/3/0/5/130589050/3684274.pdf
    • http://techforstudents.com/uploads/1/3/0/2/130272271/9471293.pdf
    • http://bayarea-interactivehypnotherapy.org/uploads/1/3/0/5/130543099/kabojurokukilo_ripep_vuwuwivi.pdf
    • http://fishbowllabs.com/uploads/1/3/0/2/130288498/8489448.pdf
    • http://narchacker.com/uploads/1/3/0/4/130479044/zadelapitodubanid.pdf
    • http://quickdrink.org/uploads/1/3/0/3/130379463/676d040602ae72.pdf
    • http://suntuffnatives.com/uploads/1/3/0/6/130640027/tamesozo.pdf
    • http://cloud-six.com/uploads/1/3/0/7/130739235/443189.pdf
    • http://manosamistosas.org/uploads/1/3/0/5/130541346/sumitas.pdf
    • http://barrhaventravelclinic.ca/uploads/1/3/0/7/130776328/d7187c4194f01.pdf
    • http://hazmatpackingandsupplies.com/uploads/1/3/0/3/130379447/130379447.html#pronoms+relatif+compos%C3%A9+exercices
    • http://barrhaventravelclinic.ca/uploads/1

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000332b.bin
021f3db4f45fc34229cf257bf0ab365aee0ab5e28f5362bb40e5dca474f2f5b6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x332B 9884 bytes

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