Malicious PDF — malware analysis report

Static analysis result for SHA-256 3731579a9284ee14…

MALICIOUS

PDF

46.1 KB Authoring application: Adobe PDF Library 9.0
MD5: cac96d7e1bfa8bcf50a9e7a604f65448 SHA-1: 0cf8e0867830156cba7eff2c26db3ff7eff20419 SHA-256: 3731579a9284ee14f345aeaa176b34cbdf3535c135636260a47844a9dfa269f3
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 hosted on various domains, indicating a link farm strategy. This is strongly suggestive of a phishing or malware distribution campaign. The ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports this assessment. 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://demihoogendoorn.com/uploads/1/3/0/8/130874150/kimotojenot.pdf
    • http://juhoatte.com/uploads/1/3/0/2/130289722/48480.pdf
    • http://annaboland.com/uploads/1/3/0/4/130475964/eb35a.pdf
    • http://drivegilroy.com/uploads/1/3/0/5/130538875/7843046.pdf
    • http://bucolicmusic.com/uploads/1/3/0/9/130969279/1029050.pdf
    • http://enchanted-florals.com/uploads/1/3/0/5/130543996/wupofarel.pdf
    • http://www.myclarendonhills.com/uploads/1/3/0/2/130289592/kezareziv_jobegowot_sufupe_ragaxaf.pdf
    • http://texsunwindowtint.com/uploads/1/3/0/5/130551057/figikekepefogaxabi.pdf
    • http://inlineuniversity.com/uploads/1/3/0/6/130639779/9352639.pdf
    • http://www.visionsbyjr.com/uploads/1/3/0/7/130740497/nedubof.pdf
    • http://iqseries.de/uploads/1/3/0/5/130543568/7985665.pdf
    • http://peerlendingamerica.com/uploads/1/3/0/4/130436473/ginadowizi.pdf
    • http://hostmaster.glyphs.org/uploads/1/3/0/6/130621392/gujuw.pdf
    • http://windowssavvy.com/uploads/1/3/0/8/130874063/fawonemeruzupapuf.pdf
    • http://talktoyourcoach.com/uploads/1/3/0/5/130590375/jiruwam.pdf
    • http://www.mserinmarie.com/uploads/1/3/0/7/130775431/b7d7989a12f2e8a.pdf
    • http://www.mrjohnsonelcap.com/uploads/1/3/0/7/130775163/9b4bb14de.pdf
    • http://taylored.solutions/uploads/1/3/0/5/130589161/mekakive-salukivuzagate-mamepivirukuj-sijutiz.pdf
    • http://jcjamison.net/uploads/1/3/0/7/130739878/3289536.pdf
    • http://sgdpress.com/uploads/1/3/0/7/130739117/da669ca2f4748f.pdf
    • http://adam-butler.net/uploads/1/3/0/5/130589381/jugijuvumagogo_gonizaneb_panefix.pdf
    • http://clearlineapps.com/uploads/1/3/0/2/130287957/143876.pdf
    • http://politicaltravisty.com/uploads/1/3/0/5/130550895/3898059.pdf
    • http://lhi.works/uploads/1/3/0/6/130621068/rarejusalur_wobefivokapusu_donumedekexizu_jesarajezudube.pdf
    • http://pureelegancesalonandtattoo.com/uploads/1/3/0/5/130543173/eac17fe9fdf5b.pdf
    • http://74-123-72-117.mgwnet.com/uploads/1/3/0/6/130622024/130622024.html#oxy+acetylene+flame+used+in+welding

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004f01.bin
27211a5af1bfa2cb62b6ab12efb28417baa07afcaaab5c1426cb8f58b6b27dfa		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4F01 8476 bytes

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