Malicious PDF — malware analysis report

Static analysis result for SHA-256 a37d08316b75566d…

MALICIOUS

PDF

36.9 KB Authoring application: SWFTools
MD5: 0044f490173c6afb91e3bd053a673267 SHA-1: 38d07c58998bdd0cba747d66c4314a0462d7cf79 SHA-256: a37d08316b75566d26fa5f287be70a635cea176bf9119d1aa8bcedbebc4053b3
150 Risk Score

Malware Insights

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

The PDF file was flagged by ClamAV as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' and a machine learning classifier gave a high confidence score. The heuristic 'PDF_SEO_LINK_FARM' indicates the presence of numerous external links, with the first identified URL being http://ashtonharvey.com/uploads/1/3/0/4/130476538/daleji.pdf. This suggests the document's primary purpose is to act as a lure, redirecting users to potentially malicious sites.

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://ashtonharvey.com/uploads/1/3/0/4/130476538/daleji.pdf
    • http://blackfriday.dng.ie/uploads/1/3/0/6/130604109/wasakino.pdf
    • http://circlewelder.com/uploads/1/3/0/6/130604923/583a696383.pdf
    • http://patriotcustomfabrication.com/uploads/1/3/0/2/130271090/9245329.pdf
    • http://dram.media/uploads/1/3/0/5/130551697/0383d8.pdf
    • http://stephanienicole.org/uploads/1/3/0/3/130323335/97be18145a0cac.pdf
    • http://283bemis.com/uploads/1/3/0/4/130435821/gejinub_luworevupu_kudutofale_gerivugo.pdf
    • http://riograndewild.org/uploads/1/3/0/5/130550785/5578181.pdf
    • http://mx.globaltires.com/uploads/1/3/0/7/130739713/rilakibujelabuz.pdf
    • http://whosrunningamerica.net/uploads/1/3/0/8/130873715/pofilabesifizaf.pdf
    • http://fastloanprocessing.com/uploads/1/3/0/6/130604446/niwizagomufa-gofamebebidoj.pdf
    • http://quantumleapinternational.net/uploads/1/3/0/7/130775893/130775893.html#prinsip+negara+hukum+yang+demokratis

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003bdb.bin
02b6e1912e052300f9ca9aeb2622f5d4010f92866fba5aa0aa13da467c7e3e1d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3BDB 7096 bytes

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