Analysis Overview
SHA256
be95b29da48e169996c492b3c95f55c8af679136df3adaabd24a5d67d3c2af41
Threat Level: Known bad
The file be95b29da48e169996c492b3c95f55c8af679136df3adaabd24a5d67d3c2af41.elf was found to be: Known bad.
Malicious Activity Summary
Kaiji family
kaiji_chaosbot
Kaiji
Executes dropped EXE
Modifies Watchdog functionality
Modifies init.d
Modifies systemd
Enumerates running processes
Reads CPU attributes
Enumerates kernel/hardware configuration
Reads runtime system information
GoLang User-Agent
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-11-01 05:19
Signatures
Kaiji
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Kaiji family
kaiji_chaosbot
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-11-01 05:19
Reported
2024-11-01 05:22
Platform
debian12-mipsel-20240221-en
Max time kernel
153s
Max time network
165s
Command Line
Signatures
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | /etc/32678 | /etc/32678 | N/A |
| N/A | /etc/id.services.conf | /etc/id.services.conf | N/A |
| N/A | /etc/id.services.conf | /etc/id.services.conf | N/A |
| N/A | /etc/32678 | /etc/32678 | N/A |
| N/A | /etc/id.services.conf | /etc/id.services.conf | N/A |
Modifies Watchdog functionality
| Description | Indicator | Process | Target |
| File opened for modification | /dev/misc/watchdog | /tmp/be95b29da48e169996c492b3c95f55c8af679136df3adaabd24a5d67d3c2af41.elf | N/A |
| File opened for modification | /dev/watchdog | /tmp/be95b29da48e169996c492b3c95f55c8af679136df3adaabd24a5d67d3c2af41.elf | N/A |
Enumerates running processes
Modifies init.d
| Description | Indicator | Process | Target |
| File opened for modification | /etc/init.d/linux_kill | /tmp/be95b29da48e169996c492b3c95f55c8af679136df3adaabd24a5d67d3c2af41.elf | N/A |
Modifies systemd
| Description | Indicator | Process | Target |
| File opened for modification | /usr/lib/systemd/system/linux.service | /tmp/be95b29da48e169996c492b3c95f55c8af679136df3adaabd24a5d67d3c2af41.elf | N/A |
Reads CPU attributes
| Description | Indicator | Process | Target |
| File opened for reading | /sys/devices/system/cpu/possible | /usr/bin/pkill | N/A |
Enumerates kernel/hardware configuration
| Description | Indicator | Process | Target |
| File opened for reading | /sys/kernel/mm/transparent_hugepage/hpage_pmd_size | /tmp/be95b29da48e169996c492b3c95f55c8af679136df3adaabd24a5d67d3c2af41.elf | N/A |
| File opened for reading | /sys/kernel/mm/transparent_hugepage/hpage_pmd_size | /tmp/be95b29da48e169996c492b3c95f55c8af679136df3adaabd24a5d67d3c2af41.elf | N/A |
| File opened for reading | /sys/kernel/mm/transparent_hugepage/hpage_pmd_size | /etc/id.services.conf | N/A |
| File opened for reading | /sys/devices/system/node | /usr/bin/pkill | N/A |
| File opened for reading | /sys/kernel/mm/transparent_hugepage/hpage_pmd_size | /etc/id.services.conf | N/A |
| File opened for reading | /sys/kernel/mm/transparent_hugepage/hpage_pmd_size | /etc/id.services.conf | N/A |
Reads runtime system information
| Description | Indicator | Process | Target |
| File opened for reading | /proc/334/cmdline | /usr/bin/pkill | N/A |
| File opened for reading | /proc/830/cgroup | /usr/bin/pkill | N/A |
| File opened for reading | /proc/836/cmdline | /usr/bin/pkill | N/A |
| File opened for reading | /proc/37/cmdline | /usr/bin/pkill | N/A |
| File opened for reading | /proc/48/stat | /usr/bin/pkill | N/A |
| File opened for reading | /proc/837/stat | /usr/bin/pkill | N/A |
| File opened for reading | /proc/403/stat | /tmp/be95b29da48e169996c492b3c95f55c8af679136df3adaabd24a5d67d3c2af41.elf | N/A |
| File opened for reading | /proc/10/status | /usr/bin/pkill | N/A |
| File opened for reading | /proc/32/cmdline | /usr/bin/pkill | N/A |
| File opened for reading | /proc/35/stat | /usr/bin/pkill | N/A |
| File opened for reading | /proc/59/cgroup | /usr/bin/pkill | N/A |
| File opened for reading | /proc/691/stat | /tmp/be95b29da48e169996c492b3c95f55c8af679136df3adaabd24a5d67d3c2af41.elf | N/A |
| File opened for reading | /proc/self/status | /usr/bin/pkill | N/A |
| File opened for reading | /proc/13/cgroup | /usr/bin/pkill | N/A |
| File opened for reading | /proc/45/status | /usr/bin/pkill | N/A |
| File opened for reading | /proc/58/status | /usr/bin/pkill | N/A |
| File opened for reading | /proc/59/status | /usr/bin/pkill | N/A |
| File opened for reading | /proc/822/stat | /tmp/be95b29da48e169996c492b3c95f55c8af679136df3adaabd24a5d67d3c2af41.elf | N/A |
| File opened for reading | /proc/34/stat | /usr/bin/pkill | N/A |
| File opened for reading | /proc/771/status | /usr/bin/pkill | N/A |
| File opened for reading | /proc/27/status | /usr/bin/pkill | N/A |
| File opened for reading | /proc/45/cgroup | /usr/bin/pkill | N/A |
| File opened for reading | /proc/58/stat | /usr/bin/pkill | N/A |
| File opened for reading | /proc/116/stat | /usr/bin/pkill | N/A |
| File opened for reading | /proc/392/status | /usr/bin/pkill | N/A |
| File opened for reading | /proc/410/cgroup | /usr/bin/pkill | N/A |
| File opened for reading | /proc/14/cgroup | /usr/bin/pkill | N/A |
| File opened for reading | /proc/390/ctty | /usr/bin/pkill | N/A |
| File opened for reading | /proc/835/cgroup | /usr/bin/pkill | N/A |
| File opened for reading | /proc/857/stat | /tmp/be95b29da48e169996c492b3c95f55c8af679136df3adaabd24a5d67d3c2af41.elf | N/A |
| File opened for reading | /proc/113/cmdline | /usr/bin/pkill | N/A |
| File opened for reading | /proc/180/cmdline | /usr/bin/pkill | N/A |
| File opened for reading | /proc/419/status | /usr/bin/pkill | N/A |
| File opened for reading | /proc/732/status | /usr/bin/pkill | N/A |
| File opened for reading | /proc/830/status | /usr/bin/pkill | N/A |
| File opened for reading | /proc/835/ctty | /usr/bin/pkill | N/A |
| File opened for reading | /proc/866/stat | /tmp/be95b29da48e169996c492b3c95f55c8af679136df3adaabd24a5d67d3c2af41.elf | N/A |
| File opened for reading | /proc/751/status | /usr/bin/pkill | N/A |
| File opened for reading | /proc/31/stat | /usr/bin/pkill | N/A |
| File opened for reading | /proc/114/cmdline | /usr/bin/pkill | N/A |
| File opened for reading | /proc/119/cgroup | /usr/bin/pkill | N/A |
| File opened for reading | /proc/403/status | /usr/bin/pkill | N/A |
| File opened for reading | /proc/733/stat | /tmp/be95b29da48e169996c492b3c95f55c8af679136df3adaabd24a5d67d3c2af41.elf | N/A |
| File opened for reading | /proc/793/stat | /tmp/be95b29da48e169996c492b3c95f55c8af679136df3adaabd24a5d67d3c2af41.elf | N/A |
| File opened for reading | /proc/47/status | /usr/bin/pkill | N/A |
| File opened for reading | /proc/20/cgroup | /usr/bin/pkill | N/A |
| File opened for reading | /proc/58/cmdline | /usr/bin/pkill | N/A |
| File opened for reading | /proc/732/stat | /usr/bin/pkill | N/A |
| File opened for reading | /proc/24/stat | /usr/bin/pkill | N/A |
| File opened for reading | /proc/24/cmdline | /usr/bin/pkill | N/A |
| File opened for reading | /proc/47/stat | /usr/bin/pkill | N/A |
| File opened for reading | /proc/403/ctty | /usr/bin/pkill | N/A |
| File opened for reading | /proc/852/stat | /tmp/be95b29da48e169996c492b3c95f55c8af679136df3adaabd24a5d67d3c2af41.elf | N/A |
| File opened for reading | /proc/14/status | /usr/bin/pkill | N/A |
| File opened for reading | /proc/22/stat | /usr/bin/pkill | N/A |
| File opened for reading | /proc/732/ctty | /usr/bin/pkill | N/A |
| File opened for reading | /proc/860/stat | /tmp/be95b29da48e169996c492b3c95f55c8af679136df3adaabd24a5d67d3c2af41.elf | N/A |
| File opened for reading | /proc/17/status | /usr/bin/pkill | N/A |
| File opened for reading | /proc/768/stat | /usr/bin/pkill | N/A |
| File opened for reading | /proc/875/stat | /tmp/be95b29da48e169996c492b3c95f55c8af679136df3adaabd24a5d67d3c2af41.elf | N/A |
| File opened for reading | /proc/782/stat | /tmp/be95b29da48e169996c492b3c95f55c8af679136df3adaabd24a5d67d3c2af41.elf | N/A |
| File opened for reading | /proc/816/stat | /tmp/be95b29da48e169996c492b3c95f55c8af679136df3adaabd24a5d67d3c2af41.elf | N/A |
| File opened for reading | /proc/4/status | /usr/bin/pkill | N/A |
| File opened for reading | /proc/5/ctty | /usr/bin/pkill | N/A |
GoLang User-Agent
| Description | Indicator | Process | Target |
| HTTP User-Agent header | Go-http-client/1.1 | N/A | N/A |
Processes
/tmp/be95b29da48e169996c492b3c95f55c8af679136df3adaabd24a5d67d3c2af41.elf
[/tmp/be95b29da48e169996c492b3c95f55c8af679136df3adaabd24a5d67d3c2af41.elf]
/usr/bin/sh
[sh -c /etc/32678&]
/usr/sbin/service
[service crond start]
/tmp/be95b29da48e169996c492b3c95f55c8af679136df3adaabd24a5d67d3c2af41.elf
[/tmp/be95b29da48e169996c492b3c95f55c8af679136df3adaabd24a5d67d3c2af41.elf ]
/etc/32678
[/etc/32678]
/usr/bin/basename
[basename /usr/sbin/service]
/usr/bin/sleep
[sleep 60]
/usr/bin/basename
[basename /usr/sbin/service]
/usr/bin/systemctl
[systemctl list-unit-files --full --type=socket]
/usr/bin/sed
[sed -ne s/\.socket\s*[a-z]*\s*$/.socket/p]
/usr/sbin/update-rc.d
[update-rc.d linux_kill defaults]
/usr/local/sbin/systemctl
[systemctl daemon-reload]
/usr/local/bin/systemctl
[systemctl daemon-reload]
/usr/sbin/systemctl
[systemctl daemon-reload]
/usr/bin/systemctl
[systemctl daemon-reload]
/usr/local/sbin/systemctl
[systemctl start crond.service]
/usr/local/bin/systemctl
[systemctl start crond.service]
/usr/sbin/systemctl
[systemctl start crond.service]
/usr/bin/systemctl
[systemctl start crond.service]
/etc/id.services.conf
[/etc/id.services.conf]
/usr/bin/sh
[sh -c cd /boot;systemctl daemon-reload;systemctl enable linux.service;systemctl start linux.service;journalctl -xe --no-pager]
/usr/bin/systemctl
[systemctl daemon-reload]
/usr/bin/pkill
[pkill -9 32678]
/usr/bin/sh
[sh -c /etc/32678&]
/usr/sbin/service
[service crond start]
/etc/id.services.conf
[/etc/id.services.conf ]
/etc/32678
[/etc/32678]
/usr/bin/basename
[basename /usr/sbin/service]
/usr/bin/sleep
[sleep 60]
/usr/bin/basename
[basename /usr/sbin/service]
/usr/bin/systemctl
[systemctl list-unit-files --full --type=socket]
/usr/bin/sed
[sed -ne s/\.socket\s*[a-z]*\s*$/.socket/p]
/usr/bin/systemctl
[systemctl enable linux.service]
/usr/local/sbin/systemctl
[systemctl start crond.service]
/usr/local/bin/systemctl
[systemctl start crond.service]
/usr/sbin/systemctl
[systemctl start crond.service]
/usr/bin/systemctl
[systemctl start crond.service]
/etc/id.services.conf
[/etc/id.services.conf]
Network
| Country | Destination | Domain | Proto |
| US | 1.1.1.1:53 | www.google.com | udp |
| US | 1.1.1.1:53 | www.google.com | udp |
| US | 1.1.1.1:53 | 78789.dns.army | udp |
| US | 1.1.1.1:53 | 78789.dns.army | udp |
| HK | 149.88.76.121:808 | 78789.dns.army | tcp |
| US | 1.1.1.1:53 | debian12-mipsel-20240221-en-1 | udp |
| US | 1.1.1.1:53 | debian12-mipsel-20240221-en-1 | udp |
| US | 1.1.1.1:53 | debian12-mipsel-20240221-en-1 | udp |
| US | 1.1.1.1:53 | debian12-mipsel-20240221-en-1 | udp |
| HK | 149.88.76.121:8088 | 78789.dns.army | tcp |
| N/A | 10.127.0.1:22 | tcp | |
| N/A | 10.127.0.5:22 | tcp | |
| N/A | 10.127.0.2:22 | tcp | |
| N/A | 10.127.0.4:22 | tcp | |
| N/A | 10.127.0.8:22 | tcp | |
| N/A | 10.127.0.9:22 | tcp | |
| N/A | 10.127.0.7:22 | tcp | |
| N/A | 10.127.0.6:22 | tcp | |
| N/A | 10.127.0.10:22 | tcp | |
| N/A | 10.127.0.11:22 | tcp | |
| N/A | 10.127.0.12:22 | tcp | |
| N/A | 10.127.0.14:22 | tcp | |
| N/A | 10.127.0.13:22 | tcp | |
| N/A | 10.127.0.15:22 | tcp | |
| N/A | 10.127.0.19:22 | tcp | |
| N/A | 10.127.0.17:22 | tcp | |
| N/A | 10.127.0.18:22 | tcp | |
| N/A | 10.127.0.16:22 | tcp | |
| N/A | 10.127.0.20:22 | tcp | |
| N/A | 10.127.0.21:22 | tcp | |
| N/A | 10.127.0.23:22 | tcp | |
| N/A | 10.127.0.22:22 | tcp | |
| N/A | 10.127.0.24:22 | tcp | |
| N/A | 10.127.0.25:22 | tcp | |
| N/A | 10.127.0.28:22 | tcp | |
| N/A | 10.127.0.26:22 | tcp | |
| N/A | 10.127.0.29:22 | tcp | |
| N/A | 10.127.0.27:22 | tcp | |
| N/A | 10.127.0.30:22 | tcp | |
| N/A | 10.127.0.32:22 | tcp | |
| N/A | 10.127.0.31:22 | tcp | |
| N/A | 10.127.0.33:22 | tcp | |
| N/A | 10.127.0.34:22 | tcp | |
| N/A | 10.127.0.35:22 | tcp | |
| N/A | 10.127.0.36:22 | tcp | |
| N/A | 10.127.0.37:22 | tcp | |
| N/A | 10.127.0.38:22 | tcp | |
| N/A | 10.127.0.39:22 | tcp | |
| N/A | 10.127.0.40:22 | tcp | |
| N/A | 10.127.0.43:22 | tcp | |
| N/A | 10.127.0.41:22 | tcp | |
| N/A | 10.127.0.44:22 | tcp | |
| N/A | 10.127.0.42:22 | tcp | |
| N/A | 10.127.0.45:22 | tcp | |
| N/A | 10.127.0.47:22 | tcp | |
| N/A | 10.127.0.49:22 | tcp | |
| N/A | 10.127.0.46:22 | tcp | |
| N/A | 10.127.0.50:22 | tcp | |
| N/A | 10.127.0.48:22 | tcp | |
| N/A | 10.127.0.53:22 | tcp | |
| N/A | 10.127.0.52:22 | tcp | |
| N/A | 10.127.0.54:22 | tcp | |
| N/A | 10.127.0.51:22 | tcp | |
| N/A | 10.127.0.55:22 | tcp | |
| N/A | 10.127.0.57:22 | tcp | |
| N/A | 10.127.0.56:22 | tcp | |
| N/A | 10.127.0.59:22 | tcp | |
| N/A | 10.127.0.60:22 | tcp | |
| N/A | 10.127.0.58:22 | tcp | |
| N/A | 10.127.0.65:22 | tcp | |
| N/A | 10.127.0.61:22 | tcp | |
| N/A | 10.127.0.63:22 | tcp | |
| N/A | 10.127.0.64:22 | tcp | |
| N/A | 10.127.0.62:22 | tcp | |
| N/A | 10.127.0.69:22 | tcp | |
| N/A | 10.127.0.68:22 | tcp | |
| N/A | 10.127.0.71:22 | tcp | |
| N/A | 10.127.0.74:22 | tcp | |
| N/A | 10.127.0.73:22 | tcp | |
| N/A | 10.127.0.72:22 | tcp | |
| N/A | 10.127.0.75:22 | tcp | |
| N/A | 10.127.0.76:22 | tcp | |
| N/A | 10.127.0.78:22 | tcp | |
| N/A | 10.127.0.80:22 | tcp | |
| N/A | 10.127.0.79:22 | tcp | |
| N/A | 10.127.0.77:22 | tcp | |
| N/A | 10.127.0.82:22 | tcp | |
| N/A | 10.127.0.81:22 | tcp | |
| N/A | 10.127.0.84:22 | tcp | |
| N/A | 10.127.0.83:22 | tcp | |
| N/A | 10.127.0.85:22 | tcp | |
| N/A | 10.127.0.86:22 | tcp | |
| N/A | 10.127.0.87:22 | tcp | |
| N/A | 10.127.0.88:22 | tcp | |
| N/A | 10.127.0.90:22 | tcp | |
| N/A | 10.127.0.89:22 | tcp | |
| N/A | 10.127.0.91:22 | tcp | |
| N/A | 10.127.0.93:22 | tcp | |
| N/A | 10.127.0.94:22 | tcp | |
| N/A | 10.127.0.95:22 | tcp | |
| N/A | 10.127.0.92:22 | tcp | |
| N/A | 10.127.0.96:22 | tcp | |
| N/A | 10.127.0.98:22 | tcp | |
| N/A | 10.127.0.99:22 | tcp | |
| N/A | 10.127.0.100:22 | tcp | |
| N/A | 10.127.0.97:22 | tcp | |
| N/A | 10.127.0.101:22 | tcp | |
| N/A | 10.127.0.102:22 | tcp | |
| N/A | 10.127.0.103:22 | tcp | |
| N/A | 10.127.0.105:22 | tcp | |
| N/A | 10.127.0.104:22 | tcp | |
| N/A | 10.127.0.106:22 | tcp | |
| N/A | 10.127.0.107:22 | tcp | |
| N/A | 10.127.0.108:22 | tcp | |
| N/A | 10.127.0.109:22 | tcp | |
| N/A | 10.127.0.110:22 | tcp | |
| N/A | 10.127.0.111:22 | tcp | |
| N/A | 10.127.0.114:22 | tcp | |
| N/A | 10.127.0.112:22 | tcp | |
| N/A | 10.127.0.113:22 | tcp | |
| N/A | 10.127.0.115:22 | tcp | |
| N/A | 10.127.0.116:22 | tcp | |
| N/A | 10.127.0.118:22 | tcp | |
| N/A | 10.127.0.117:22 | tcp | |
| N/A | 10.127.0.119:22 | tcp | |
| N/A | 10.127.0.120:22 | tcp | |
| N/A | 10.127.0.121:22 | tcp | |
| N/A | 10.127.0.122:22 | tcp | |
| N/A | 10.127.0.123:22 | tcp | |
| N/A | 10.127.0.125:22 | tcp | |
| N/A | 10.127.0.124:22 | tcp | |
| N/A | 10.127.0.126:22 | tcp | |
| N/A | 10.127.0.127:22 | tcp | |
| N/A | 10.127.0.128:22 | tcp | |
| N/A | 10.127.0.129:22 | tcp | |
| N/A | 10.127.0.130:22 | tcp | |
| N/A | 10.127.0.131:22 | tcp | |
| N/A | 10.127.0.132:22 | tcp | |
| N/A | 10.127.0.135:22 | tcp | |
| N/A | 10.127.0.133:22 | tcp | |
| N/A | 10.127.0.134:22 | tcp | |
| N/A | 10.127.0.139:22 | tcp | |
| N/A | 10.127.0.136:22 | tcp | |
| N/A | 10.127.0.137:22 | tcp | |
| N/A | 10.127.0.138:22 | tcp | |
| N/A | 10.127.0.140:22 | tcp | |
| N/A | 10.127.0.142:22 | tcp | |
| N/A | 10.127.0.144:22 | tcp | |
| N/A | 10.127.0.141:22 | tcp | |
| N/A | 10.127.0.143:22 | tcp | |
| N/A | 10.127.0.145:22 | tcp | |
| N/A | 10.127.0.147:22 | tcp | |
| N/A | 10.127.0.148:22 | tcp | |
| N/A | 10.127.0.146:22 | tcp | |
| N/A | 10.127.0.149:22 | tcp | |
| N/A | 10.127.0.150:22 | tcp | |
| N/A | 10.127.0.151:22 | tcp | |
| N/A | 10.127.0.152:22 | tcp | |
| N/A | 10.127.0.154:22 | tcp | |
| N/A | 10.127.0.153:22 | tcp | |
| N/A | 10.127.0.155:22 | tcp |
Files
/etc/32678
| MD5 | 768eaf287796da19e1cf5e0b2fb1b161 |
| SHA1 | 6a1ce2ee5ccc86d1f33806feb14547b35290df2a |
| SHA256 | 1d22620dfb2a6715e5d745aed5cf841ede0e75e1747f12b9b925a2d346bc7ecb |
| SHA512 | e6af30c9df4f7f47696069511e64ecbc8e841629d692ee4056503df3533fb7a7a74960698826260355e1dba7b6c562482a27a39bb51a4237473ce4b68472d620 |
/etc/init.d/linux_kill
| MD5 | 3909975f7cc0d1121c1819b800069f31 |
| SHA1 | 3e68de708c2e6c40fab6794afdee3104e5590189 |
| SHA256 | 6876dac71f13a068afb863d257134275f2edba43b2acaf4924fabf97c079070b |
| SHA512 | 50600cceeb03b05f45ae61d890caee9f51ff390b6776930866e527e071d65d08241fc66673fd9b99d62fbc77d3c00fc3de4d7378cbc42f5daba5d83072b0906e |