Malicious PDF — malware analysis report

Static analysis result for SHA-256 578b3218b63f827d…

MALICIOUS

PDF

60.4 KB Authoring application: Inkscape
MD5: 1ecbc14db4464a9420a2b7e35c8036dd SHA-1: 15b5221521e90cdea05d43c79ae2b69bc3074a24 SHA-256: 578b3218b63f827d7a3da95efd689f2a2440a0a2e9026d43619bf5745ee54e0d
150 Risk Score

Malware Insights

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

The PDF contains a large number of external links to other PDF files, a technique often used for SEO poisoning or to redirect users to malicious content. The ClamAV detection and ML classifier strongly indicate malicious intent. The embedded URLs are the primary indicators of compromise, suggesting a phishing or redirection campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://london-pet-grooming.co.uk/uploads/1/3/0/7/130740536/segap_xazam.pdf
    • http://kubbsjewelryandfashion.com/uploads/1/3/0/5/130551247/517262.pdf
    • http://bluesmasters.club/uploads/1/3/0/6/130620750/4021388.pdf
    • http://dofnelsonfaithfomation.com/uploads/1/3/0/3/130379391/f34ec6111.pdf
    • https://wenenakeju.weebly.com/uploads/1/3/0/4/130488839/1376065.pdf
    • http://oldmilltradingco.shop/uploads/1/3/0/3/130379160/tofuzunizigovov_kumix.pdf
    • http://mynaturalplace.com/uploads/1/3/0/6/130620695/406d08167d80.pdf
    • http://panicroomrva.com/uploads/1/3/0/5/130547207/ritubaf_zoned_neboza_virowepeg.pdf
    • http://millerschoolmaster.com/uploads/1/3/0/6/130605389/88ebfe68.pdf
    • http://dlitefullgifts.com/uploads/1/3/0/5/130551957/zajajoro.pdf
    • http://juliejesternewman.com/uploads/1/3/0/5/130543386/130543386.html#harry+potter+book+bag

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000149d.bin
98b644548a20f4a5e1f67415bba2ddef0b3329d5e61aa5010599999fcbee2903		 pdf-font-stream PDF embedded font (sfnt) at offset 0x149D 10808 bytes
font_01_sfnt_off0000b2a1.bin
d907c570f1f8f2d62f38d7529dbf77de46ca3a1917ec53aca7a78bae59874b04		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB2A1 2616 bytes

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