Malicious PDF — malware analysis report

Static analysis result for SHA-256 23ec48d6560bcaec…

MALICIOUS

PDF

45.7 KB Authoring application: Scribus
MD5: b24d693943317a7ffc72bf398543a479 SHA-1: 946baf2ed2ca65bd05f39936c414aad275f943cb SHA-256: 23ec48d6560bcaecd6daff0f87e0102e6a582df69c162054c0ec3533c1cc7fe5
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a large farm of external links, many of which point to other PDF files hosted on various domains. The document body text mentions 'Jawahar navodaya vidyalaya class 6 entrance result 2019', suggesting a lure to trick users into clicking these links. The ClamAV detection and ML classifier strongly indicate malicious intent, likely related to phishing or malware distribution.

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://jdlockhartphotography.com/uploads/1/3/0/4/130436125/a64e6dd5.pdf
    • http://vertes.com.sg/uploads/1/3/0/3/130323697/xejokole.pdf
    • http://reginavalle.com/uploads/1/3/0/7/130776298/1421363.pdf
    • http://ablossominglifeec.org/uploads/1/3/0/2/130291910/topotetiviru_pexubitakew.pdf
    • http://awakeningthedivinewithin.com/uploads/1/3/0/6/130620224/4846976.pdf
    • http://bluthirty2.com/uploads/1/3/0/2/130291416/supizalo-bijelonananidid-lunafitef.pdf
    • http://partocica.com/uploads/1/3/0/3/130379295/f38825.pdf
    • http://hiltyhazzard.com/uploads/1/3/0/8/130814728/9404695.pdf
    • http://aaliyakhan.com/uploads/1/3/0/3/130323599/fanizepa.pdf
    • http://mail.jrba.org/uploads/1/3/0/8/130874422/lufazaguriterenor.pdf
    • http://wurzeltube.com/uploads/1/3/0/8/130813855/7165494.pdf
    • http://ohioccwtraining.net/uploads/1/3/0/6/130639360/2174092.pdf
    • http://www.miyukitomura.com/uploads/1/3/0/5/130590538/3879604.pdf
    • http://rollinghillsmobileterrace.com/uploads/1/3/0/6/130640021/nojotonadasivu-fisigifu-moline.pdf
    • http://mrelectricalservices.com.au/uploads/1/3/0/6/130639153/siwejuvara.pdf
    • http://ivybradley.com/uploads/1/3/0/6/130639698/suduwofolaso-piwatev-gojobi.pdf
    • http://p9jzm.slpny.com/uploads/1/3/0/6/130620594/130620594.html#jawahar+navodaya+vidyalaya+class+6+entrance+result+2019

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000032bb.bin
6c4d2f66e1c9f21c5d150b07e73aa6dd1840336332455f42235ae77699735e59		 pdf-font-stream PDF embedded font (sfnt) at offset 0x32BB 13100 bytes
font_01_sfnt_off0000580a.bin
b4453f68be50fd206a534f975bf27a7eb6ba11af28c09db9e40a0e5d37e40d25		 pdf-font-stream PDF embedded font (sfnt) at offset 0x580A 7648 bytes

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