Malicious PDF — malware analysis report

Static analysis result for SHA-256 fb74b0d2056e35c4…

MALICIOUS

PDF

66.5 KB Authoring application: Karbon
MD5: 716a57374c113fcbe0a0bbeca126eb2c SHA-1: c32263defe1197d6a5a24e101dbc00657d076f76 SHA-256: fb74b0d2056e35c4825eca308b942fae76ccabbb64441be655fa39e8f2242458
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a link farm, indicating a large number of embedded URLs. The ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a phishing or traffic redirection intent. The embedded URLs likely lead to further malicious content or phishing pages.

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 https://fujibozamexewo.weebly.com/uploads/1/3/0/2/130272424/965255.pdf
    • http://discountwiresupply.com/uploads/1/3/0/5/130547486/623c827eb.pdf
    • http://hawaiieventlighting.com/uploads/1/3/0/4/130489725/6839530.pdf
    • http://pourspoutequipment.net/uploads/1/3/0/7/130740389/kosarijem.pdf
    • http://campprepare.com/uploads/1/3/0/2/130273748/808702.pdf
    • http://rockcliffetennis.ca/uploads/1/3/0/5/130590462/05ed66b.pdf
    • http://beingself-centered.com/uploads/1/3/0/5/130550930/f6a18b33f6a7.pdf
    • http://motorcyclespeakers.org/uploads/1/3/0/2/130272505/dd7c7b8ad5c5a4.pdf
    • http://mynaturalhairspa.com/uploads/1/3/0/8/130814101/130814101.html#b.+a+pass+movie++utorrent

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000011bc.bin
af3fc7e5eac67aba9af7453a280fb284c9fcc6e451af7d53fedf632c15c53ad0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11BC 8312 bytes
font_01_sfnt_off00006c16.bin
64c87ec980bd219be94f019ce19eb339cee5edc8f8c9afa85830aa041a02a3d9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6C16 48820 bytes
font_02_sfnt_off0000bf92.bin
779aa567746046747dac965df7fdfb06ff632674a0a99ce247a327bf89f0fa63		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBF92 16036 bytes

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