Malicious PDF — malware analysis report

Static analysis result for SHA-256 6d5e0230d531ea3d…

MALICIOUS

PDF

45.7 KB Authoring application: PDFedit
MD5: 9544570edb998b309a959aafcf4a783f SHA-1: 9ae3a81414a4cd065b1facbb671918bf1f5ce306 SHA-256: 6d5e0230d531ea3d18f6445e7d2b6fbe7399bded8f60df9190a9f1fbf6ef1c39
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF was flagged by multiple heuristics, including a critical alert for a link farm containing 18 external PDF links. The ML classifier also assigned a high probability of maliciousness. The embedded URLs suggest a phishing or traffic-driving campaign, likely aiming to direct users to malicious content hosted on numerous domains.

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://lapsonsplace.com/uploads/1/3/0/5/130588773/sofazulugiwe.pdf
    • http://fuckcharucki.com/uploads/1/3/0/2/130273788/tunipikok-pezej-xiwegejaj-rariweja.pdf
    • http://noralpha.com/uploads/1/3/0/7/130739028/fazejasiten.pdf
    • http://gaycbrinson.com/uploads/1/3/0/4/130488993/4508631.pdf
    • http://angusmaciverbuildingsupplies.co.uk/uploads/1/3/0/7/130775626/8b5d7fe30be.pdf
    • http://sista-dolls-vibrations.com/uploads/1/3/0/2/130272890/botupuzanizope.pdf
    • http://pointsoffivetarot.com/uploads/1/3/0/6/130603858/3dd0c.pdf
    • http://davesbiblestudy.net/uploads/1/3/0/4/130478704/342777.pdf
    • http://modestotowingservice.com/uploads/1/3/0/4/130488975/mobazoda.pdf
    • http://mymissblue.com/uploads/1/3/0/7/130776446/130776446.html#30mm+cardioform+device

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000126a.bin
c945c9edd13ba9d6c5fb29d4c66a5a45557edac8366c52daabc6824effb1a8fa		 pdf-font-stream PDF embedded font (sfnt) at offset 0x126A 9552 bytes

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