Malicious PDF — malware analysis report

Static analysis result for SHA-256 77dad07c54012787…

MALICIOUS

PDF

34.1 KB Authoring application: ImageMagick
MD5: 4cb82ca5ab7b8f2db102a2fc97816163 SHA-1: ecec0996511b6269625e94767d9563d08bc421f1 SHA-256: 77dad07c54012787e4ee2d9d7e523674b2cdfb30ec7f6e814b17205cc73bbdfc
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links to external PDF files, as indicated by the PDF_SEO_LINK_FARM heuristic. This suggests a phishing or malware distribution attempt. The ClamAV detection of Pdf.Phishing.TtraffRobotInstall-7605656-0 further supports this assessment. No scripts were extracted from this sample.

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://parkpacapartments.com/uploads/1/3/0/7/130739772/rafobevuz-marab-polexadomexe-pazup.pdf
    • http://goodgoal.net/uploads/1/3/0/5/130543511/1853018.pdf
    • http://myvitablu.com/uploads/1/3/0/4/130476075/kubanokakatowivexut.pdf
    • http://fritzwrites.com/uploads/1/3/0/5/130589244/xurijodutepe-nodadukuragojob-lutomok-pubafobof.pdf
    • http://www.canadianhelpinghands.com/uploads/1/3/0/2/130291975/woxaloxusosor-xomufusir.pdf
    • http://mta-sts.mx.gregsculpture.com/uploads/1/3/0/8/130874247/68198849dcd6cb.pdf
    • http://canyoupark.com/uploads/1/3/0/7/130775675/1706666.pdf
    • http://plussizeweddingdressesma.com/uploads/1/3/0/9/130969989/zewunutetiwu-guziwanabexur.pdf
    • http://middlefeststl.com/uploads/1/3/0/7/130738715/2191245.pdf
    • http://www.rappscustomprojects.com/uploads/1/3/0/5/130540352/ruzagemutinot-kegokuvaj.pdf
    • http://fnf.brdge.org/uploads/1/3/0/7/130739119/130739119.html#eddie+vedder+tonight+you+belong+to+me+uke+chords

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002522.bin
5a8e261051e436197fc41b07b7d104143a389bf4e3e7281f5b23eb5eea484d8d
pdf-font-stream PDF embedded font (sfnt) at offset 0x2522 8028 bytes
font_01_sfnt_off00004086.bin
e91619dfd4c72a85464d95ef1ba4e67df13020651c42071bafbe521a61d9f7fc
pdf-font-stream PDF embedded font (sfnt) at offset 0x4086 2652 bytes