Malicious PDF — malware analysis report

Static analysis result for SHA-256 d3e8fef84e936409…

MALICIOUS

PDF

42.6 KB Authoring application: SWFTools
MD5: df506681f7aab712036b7311e3aa594b SHA-1: 3275a5f95b6a818b0e25c71784d9c95260fd1da3 SHA-256: d3e8fef84e93640959ecfc79bcde1a64124df597e0e49999a952c8c70de5a5e2
152 Risk Score

Malware Insights

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

The PDF contains a large number of embedded URLs pointing to other PDF files, a technique often used for SEO spam or to distribute further malicious content. The ClamAV detection and ML classifier strongly indicate malicious intent. The heuristic 'PDF_SEO_LINK_FARM' explicitly describes this behavior, identifying a mass external PDF link farm.

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://texanhomestudy.com/uploads/1/3/0/8/130814874/lilikupu.pdf
    • http://bandician.club/uploads/1/3/0/5/130551387/daxugamolirukik_wadubem.pdf
    • http://furdich.net/uploads/1/3/0/5/130539735/nanuza.pdf
    • http://historyofconcerts.com/uploads/1/3/0/6/130639141/falukuku.pdf
    • http://goodbyeben.com/uploads/1/3/0/2/130273790/2715481.pdf
    • http://mvleoclub.com/uploads/1/3/0/2/130291702/86a3aa4799.pdf
    • http://ghastlymonstrosities.com/uploads/1/3/0/7/130739029/5be6ae26065.pdf
    • http://imaginacion.net/uploads/1/3/0/2/130289653/5348293.pdf
    • http://stillmont.com/uploads/1/3/0/6/130622080/717dbfc673fd48c.pdf
    • http://muffler-clinic.com/uploads/1/3/0/5/130540246/piniduxiwukiwo-nozogu.pdf
    • http://lean4teensllc.com/uploads/1/3/0/7/130738725/1251712.pdf
    • http://cbdforbullys.com/uploads/1/3/0/2/130291415/wujenidavekomebig.pdf
    • http://aleonor1to1.com/uploads/1/3/0/3/130323632/matopixix.pdf
    • http://www.samanthaabbato.com/uploads/1/3/0/4/130435905/338fb8a13b0fe.pdf
    • http://musicspabox.com/uploads/1/3/0/5/130543568/gosajukerekul_kekejusuredil_genomitulaje.pdf
    • http://mvnhs.org/uploads/1/3/0/4/130477420/430037.pdf
    • http://diariesofdespair.com/uploads/1/3/0/6/130620622/rukitixik-vofulosomet-nitogaromide.pdf
    • http://www.kingdomcultivation.org/uploads/1/3/0/8/130874050/xurodawa.pdf
    • http://shepherdshillfarm.net/uploads/1/3/0/5/130550859/fuxajabojapeju.pdf
    • http://www.mommatskitchen.co.uk/uploads/1/3/0/7/130776147/9856765.pdf
    • http://bcdcosmetics.com/uploads/1/3/0/5/130551160/4959232.pdf
    • http://fourthwallgallerytattoo.com/uploads/1/3/0/4/130489220/kutipuroro.pdf
    • http://www.earo35.net/uploads/1/3/0/2/130272336/mubobujoji_supofuru.pdf
    • http://mmshop.club/uploads/1/3/0/7/130775626/wijevufemetijos_zafele.pdf
    • http://beyondblesstravel.voyagerwebsites.com/uploads/1/3/0/2/130274291/130274291.html#arbitration+and+conciliation+act+2019+amendments
    • http://goodbyeben.com/uploads/1/3

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004327.bin
483887260e82741e310202135f73690acb0d1ed5338ca95e0c2ab2813345ffaf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4327 8124 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.