Malicious PDF — malware analysis report

Static analysis result for SHA-256 4cb1f16979e954be…

MALICIOUS

PDF

29.8 KB Authoring application: PDFBox
MD5: c83e34f5353c3d3bc2c9488bbc845bb6 SHA-1: ed447f0d97777ea1e48567369f59684d68044493 SHA-256: 4cb1f16979e954bedfb0dd49f441141d2d0f6b01a0d6dee20fb124c9b8fa2ecc
128 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The PDF contains a link farm with multiple external URLs, indicating a phishing or malware distribution attempt. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports this. The embedded URLs are likely used to redirect users to malicious content or download further stages of an attack.

Heuristics 4

  • 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
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://triplex-arrow.com/uploads/1/3/0/6/130620233/54d24.pdf
    • http://merchleaf.com/uploads/1/3/0/8/130874221/nopujimaratadenafaka.pdf
    • http://dougtms.com/uploads/1/3/0/2/130274269/3471884.pdf
    • http://ambercove27waterfalls.com/uploads/1/3/0/6/130639593/5438477.pdf
    • http://aahardwood.com/uploads/1/3/0/6/130620345/nedudapud_japebosir_vexud.pdf
    • http://beckiegkengle.com/uploads/1/3/0/4/130490056/zanizowapa.pdf
    • http://serpboards.com/uploads/1/3/0/5/130589295/xewiruwovasa_nufuvimuzopez_vejid_nuvulafasadu.pdf
    • http://softwarehabits.net/uploads/1/3/0/6/130621394/nerexirotulu.pdf
    • http://avalonmusic-uk.org/uploads/1/3/0/6/130639652/5090024.pdf
    • http://clubof.club/uploads/1/3/0/4/130483158/xuzonaruguni.pdf
    • http://www.mesothelioma.org.uk/uploads/1/3/0/6/130640024/33b20dab.pdf
    • http://dewegvandeziel.net/uploads/1/3/0/7/130776016/130776016.html#ayyappa+swamy+songs+telugu+audio+video

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001d30.bin
c3bda31960e26c6fd69db6204e69ccdfa20801991270785f029336a82e9aa34e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1D30 7888 bytes

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