Malicious PDF — malware analysis report

Static analysis result for SHA-256 37fafe165ff9ce2c…

MALICIOUS

PDF

61.8 KB Authoring application: pstoedit
MD5: b73f300b564d9d9dbd19fcf2974a71b4 SHA-1: 21c955b18bff102ce0700896e9fb3efc250dff78 SHA-256: 37fafe165ff9ce2c432c0726ecb81ba5516add8bc7b0ef559c03f40e8f3da832
128 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, many of which point to other PDF files, indicating a link farm designed to direct users to malicious content. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a phishing or malicious download campaign. The presence of a visual download button reinforces the lure.

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://angusmaciverbuildingsupplies.co.uk/uploads/1/3/0/6/130639691/2578701.pdf
    • http://jeanettemurphy.net/uploads/1/3/0/5/130589252/8901092.pdf
    • http://zox.luciemauger.com/uploads/2020/01/28/xolesok-mumomug-wodogurokel-wavulegufibovej.pdf
    • http://neuroocenter.com/uploads/1/3/0/2/130287939/fefde5.pdf
    • http://terriemckee.com/uploads/1/3/0/6/130620826/d367ce0d7.pdf
    • http://meritcardmoapp.com/uploads/1/3/0/2/130291474/171082d4cc78.pdf
    • http://monagarciamusic.com/uploads/1/3/0/6/130639321/6481895.pdf
    • https://sotosaju.weebly.com/uploads/1/3/0/5/130551639/d272c204fd.pdf
    • http://ohioawnings.com/uploads/1/3/0/2/130288394/pifareg_gavefanud.pdf
    • http://afaparents.org/uploads/1/3/0/5/130551237/130551237.html#last+chaos+info+guide

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000014de.bin
2df3c38b12a9768979758a7cdbd90143ee70cdf0c83ab7ede4a7c0ed979d0245		 pdf-font-stream PDF embedded font (sfnt) at offset 0x14DE 10056 bytes
font_01_sfnt_off0000ac0d.bin
ee784df67660fa7170706fa29054f801c05d3abdf65da9a976344e49318737ac		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAC0D 8092 bytes

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