Malicious PDF — malware analysis report

Static analysis result for SHA-256 b143b9af1999815b…

MALICIOUS

PDF

36.1 KB Authoring application: Poppler-utils
MD5: 01e63f8f532701142f69f6f4ebb3ad9e SHA-1: ee26f1f5da15a9736f3ad50933ad72f39b475a31 SHA-256: b143b9af1999815bb82c81b1cf7a60eb1a693ce31cea87236138381f49c52e39
150 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded URLs pointing to other PDF files across various domains. This behavior is indicative of a link farm or a phishing campaign designed to redirect users to malicious content. The ClamAV detection and ML classifier strongly support its malicious nature.

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://mcpheron.net/uploads/1/3/0/7/130739280/saveluzejibow-sixunesevunerel.pdf
    • http://stikitgraphics.com/uploads/1/3/0/7/130739265/milegidujawugivo.pdf
    • http://casinoonlineaustralia.com/uploads/1/3/0/6/130605258/1683d87.pdf
    • http://vigga.com/uploads/1/3/0/5/130543545/38670cc9a814.pdf
    • http://arielledollinger.com/uploads/1/3/0/2/130289334/67b13fac13304.pdf
    • http://leahwoods.net/uploads/1/3/0/6/130620423/modarete.pdf
    • http://webdisk.boxtribe.co.za/uploads/1/3/0/5/130544584/f0b0d.pdf
    • http://colonialcpchurch.org/uploads/1/3/0/6/130621511/kevutose.pdf
    • http://rssblendr.com/uploads/1/3/0/6/130604283/vexotubo-matunukijopul-kibogawaweg.pdf
    • http://floralize.co.uk/uploads/1/3/0/4/130490774/kuxir-fotevog.pdf
    • http://marine-ropes.net/uploads/1/3/0/7/130739264/lukosavar.pdf
    • http://duckcreekgolf.com/uploads/1/3/0/4/130476368/fuvulu_rupesa.pdf
    • http://agslist.com/uploads/1/3/0/6/130639581/jawuzago.pdf
    • http://www.nikkiwetherellcounseling.com/uploads/1/3/0/5/130541346/0a4dbcc918b19.pdf
    • http://garrettmoorerealtor.com/uploads/1/3/0/4/130476896/f648279a.pdf
    • http://mintgreenmedia.com/uploads/1/3/0/6/130620510/2235954.pdf
    • http://www.wmbc2.com/uploads/1/3/0/5/130588651/4725435.pdf
    • http://kjohn.net/uploads/1/3/0/6/130604859/cad733.pdf
    • http://thecaveacademy.org/uploads/1/3/0/7/130740553/cfa070bdd4a.pdf
    • http://risesportscast.com/uploads/1/3/0/5/130543059/bigixim.pdf
    • http://bldngts.com/uploads/1/3/0/4/130478244/larunujadu_gofawinuraj_ruwejuzegore.pdf
    • http://www.english111inquiry4.com/uploads/1/3/0/6/130639641/568b21e.pdf
    • http://74-123-79-11.mgwnet.com/uploads/1/3/0/7/130776674/130776674.html#parasympathetic+nervous+system+anxiety
    • http://mintgreenmedia.com/uploads/1/3

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002de4.bin
0ab3da2602eda5c6fe241ed6663922999b8fdaa5024fd18f9ce24e957e139dd2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2DE4 7216 bytes

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