Malicious PDF — malware analysis report

Static analysis result for SHA-256 32a8fb9e08a4de02…

MALICIOUS

PDF

39.3 KB Authoring application: Karbon
MD5: 749d35dfd408e8217f5f0e1bd7d96d21 SHA-1: 6d379d7087bc3614470745874098d59b9d2999f9 SHA-256: 32a8fb9e08a4de02a912d4b4b4ccbd2f65b130ec4c3466f606d61b47e5de2c30
128 Risk Score

Malware Insights

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

The PDF contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic, suggesting a link farm or redirection to malicious sites. The ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a phishing or malicious download intent. The document body, though heavily obfuscated, contains references to URLs that are likely part of this malicious infrastructure.

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://uniqueclassrooms.co.uk/uploads/1/3/0/4/130483759/bupizepilefojiz.pdf
    • http://www.fantasticfivemama.com/uploads/1/3/0/5/130540214/6a2f2c981.pdf
    • http://softcom.live/uploads/1/3/0/5/130551981/zolewotidifemogum.pdf
    • http://www.repshop.no/uploads/1/3/0/8/130874524/6443667.pdf
    • http://www.rising-sun-health.com/uploads/1/3/0/6/130604844/153a5.pdf
    • http://www.stcloudflpainting.com/uploads/1/3/0/5/130588475/8557937.pdf
    • http://nageelacampus.org/uploads/1/3/0/5/130543568/sibabipizuzinofa.pdf
    • http://www.unionsurfsupply.com/uploads/1/3/0/2/130274305/xofifi.pdf
    • http://katiaelenasetzer.com/uploads/1/3/0/3/130313494/7822605.pdf
    • http://azerothunited.com/uploads/1/3/0/6/130621149/12336d00c4125.pdf
    • http://lastechsports.com/uploads/1/3/0/7/130738892/7706449.pdf
    • http://c8hrw.slpny.com/uploads/1/3/0/5/130550787/130550787.html#led+cube+3x3x3+arduino+uno+code

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000036bd.bin
d8435aac11388b8214bfc980e857510ef47481ba706565f25bd6cae8efb01319		 pdf-font-stream PDF embedded font (sfnt) at offset 0x36BD 2828 bytes
font_01_sfnt_off0000431e.bin
4f5b76317670b5b3bf261dcaabd974fbb58da1ac9c95bc7dc0d5b6cbc2a8fab6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x431E 7736 bytes

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