Malicious PDF — malware analysis report

Static analysis result for SHA-256 eac99accf3d862b8…

MALICIOUS

PDF

48.9 KB Authoring application: Inkscape
MD5: d7b6d335d87868cf5dc28391deaf8331 SHA-1: 2328c54c256b9693d0a57b6632943ac51c6136ec SHA-256: eac99accf3d862b83d8a4a15dc3f56bdca9d465dca0e6838c1fa097f08f4ce4f
150 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links to external PDF files, a technique often used for SEO manipulation or to distribute malware. The ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' and the ML classifier strongly indicate malicious intent. The document body contains garbled text, suggesting it is not intended for human consumption but rather as a container for the malicious links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://parentsshopusa.com/uploads/1/3/0/3/130313199/nazuvanuwowe-jiwevifu.pdf
    • http://nrsrecruitment.co.uk/uploads/1/3/0/7/130776158/8833053.pdf
    • http://tripandsip.org/uploads/1/3/0/7/130776147/polarupovak_vamasemenalaj.pdf
    • http://bergeneducational.com/uploads/1/3/0/7/130776483/gulegevakoke.pdf
    • http://cbbankclassic.com/uploads/1/3/0/7/130775596/f5b37a7aa92.pdf
    • http://thepracticeproject.org/uploads/1/3/0/4/130483210/6258b15.pdf
    • http://afterdarkboutique.org/uploads/1/3/0/5/130550731/vegujimunejej-ximoxi-pinesako.pdf
    • http://unkledesigns.com/uploads/1/3/0/8/130874671/5168c6eed51.pdf
    • http://rakshitbuildtech.com/uploads/1/3/0/3/130379317/ralivifakirudedutixi.pdf
    • http://rockmelbourne.church/uploads/1/3/0/7/130739974/9393b6bff2640c.pdf
    • http://mail.newskinandcare.com/uploads/1/3/0/6/130640126/35ba5f5e50.pdf
    • http://melatonindreams.com/uploads/1/3/0/4/130490451/06322.pdf
    • http://countrymuttmaine.com/uploads/1/3/0/5/130588405/paxizisulit_ferawidani_lijoronax.pdf
    • http://reedhospitalityassetmgt.com/uploads/1/3/0/7/130775818/jefujegum_bogajamip_fajifamawobe_defavawopexep.pdf
    • http://teamworkprofiles.com/uploads/1/3/0/7/130775308/2613038.pdf
    • http://rtwallenstudio.com/uploads/1/3/0/2/130271051/tosopuwodedoni.pdf
    • http://oursocialsecurityexpert.com/uploads/1/3/0/6/130604369/zutudino.pdf
    • http://usermarketing101.com/uploads/1/3/0/2/130288381/2aa8e26041989d.pdf
    • http://74-123-77-108.mgwnet.com/uploads/1/3/0/8/130874060/130874060.html#que+es+respiraci%C3%B3n+anaerobia+ejemplos

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003efd.bin
0ef1112e50e2a86488aadde4d8a477a3649c66578d8f2a84f2c6ad20bbddbbf8
pdf-font-stream PDF embedded font (sfnt) at offset 0x3EFD 2732 bytes
font_01_sfnt_off00004801.bin
779aa567746046747dac965df7fdfb06ff632674a0a99ce247a327bf89f0fa63
pdf-font-stream PDF embedded font (sfnt) at offset 0x4801 16036 bytes
font_02_sfnt_off00005f7e.bin
83b7c8a074134ed8d1b20654ac0441ba52716fef26d0cdf958ccfc46c8b53619
pdf-font-stream PDF embedded font (sfnt) at offset 0x5F7E 9016 bytes