Analysis
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max time kernel
125s -
max time network
150s -
platform
ubuntu-22.04_amd64 -
resource
ubuntu2204-amd64-20240611-en -
resource tags
arch:amd64arch:i386image:ubuntu2204-amd64-20240611-enkernel:5.15.0-105-genericlocale:en-usos:ubuntu-22.04-amd64system -
submitted
07/03/2025, 12:28
Behavioral task
behavioral1
Sample
jklx86.elf
Resource
ubuntu2204-amd64-20240611-en
General
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Target
jklx86.elf
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Size
49KB
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MD5
ecd1b914d0248a8174d1f5ef567e2227
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SHA1
c5ba0731a7b3236db4b8443b6be4f2f07d5ed6e5
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SHA256
adc70485dbae6ab79f9083ff5f96da2fece8b5922f0f5d0757d1c366285bfab6
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SHA512
9e25c305fa81ce9c4f715d6bc746fae810bc255d7e3d10017242864c4c04923644e86fce42b16c0638a06eb44aa8abec2681d944670dd22d69ac4d0cebbe979f
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SSDEEP
1536:7uld7p12jkVJCWsAmSffC6tqacGSHfnHqs4ec:7uldP2jkV0BSfFiHfHq9/
Malware Config
Signatures
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Contacts a large (182420) amount of remote hosts 1 TTPs
This may indicate a network scan to discover remotely running services.
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Creates a large amount of network flows 1 TTPs
This may indicate a network scan to discover remotely running services.
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Modifies Watchdog functionality 1 TTPs 2 IoCs
Malware like Mirai modifies the Watchdog to prevent it restarting an infected system.
description ioc File opened for modification /dev/watchdog File opened for modification /dev/misc/watchdog -
Renames itself 1 IoCs
pid 1570 -
Unexpected DNS network traffic destination 1 IoCs
Network traffic to other servers than the configured DNS servers was detected on the DNS port.
description ioc Destination IP 81.169.136.222 -
Enumerates active TCP sockets 1 TTPs 1 IoCs
Gets active TCP sockets from /proc virtual filesystem.
description ioc File opened for reading /proc/net/tcp -
Enumerates running processes
Discovers information about currently running processes on the system
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Changes its process name 1 IoCs
description ioc pid Changes the process name, possibly in an attempt to hide itself jklx86.elf 1570 -
Reads system network configuration 1 TTPs 1 IoCs
Uses contents of /proc filesystem to enumerate network settings.
description ioc File opened for reading /proc/net/tcp -
description ioc File opened for reading /proc/415/comm File opened for reading /proc/428/comm File opened for reading /proc/1559/comm File opened for reading /proc/632/status File opened for reading /proc/213/comm File opened for reading /proc/1088/comm File opened for reading /proc/1164/comm File opened for reading /proc/1097/status File opened for reading /proc/1452/status File opened for reading /proc/314/comm File opened for reading /proc/526/comm File opened for reading /proc/655/comm File opened for reading /proc/827/status File opened for reading /proc/1163/status File opened for reading /proc/3/comm File opened for reading /proc/11/comm File opened for reading /proc/159/comm File opened for reading /proc/594/status File opened for reading /proc/613/status File opened for reading /proc/1129/status File opened for reading /proc/458/comm File opened for reading /proc/634/comm File opened for reading /proc/1570/comm File opened for reading /proc/224/comm File opened for reading /proc/1109/comm File opened for reading /proc/15/comm File opened for reading /proc/412/comm File opened for reading /proc/986/status File opened for reading /proc/1169/status File opened for reading /proc/1592/maps File opened for reading /proc/17/comm File opened for reading /proc/114/comm File opened for reading /proc/594/comm File opened for reading /proc/1519/comm File opened for reading /proc/994/status File opened for reading /proc/1044/status File opened for reading /proc/1060/status File opened for reading /proc/1587/maps File opened for reading /proc/10/comm File opened for reading /proc/1161/comm File opened for reading /proc/1180/comm File opened for reading /proc/856/comm File opened for reading /proc/1289/comm File opened for reading /proc/223/comm File opened for reading /proc/225/comm File opened for reading /proc/874/comm File opened for reading /proc/1116/comm File opened for reading /proc/633/status File opened for reading /proc/613/comm File opened for reading /proc/1/comm File opened for reading /proc/82/comm File opened for reading /proc/26/comm File opened for reading /proc/88/comm File opened for reading /proc/854/status File opened for reading /proc/1200/status File opened for reading /proc/1315/status File opened for reading /proc/74/comm File opened for reading /proc/98/comm File opened for reading /proc/725/comm File opened for reading /proc/1357/comm File opened for reading /proc/588/status File opened for reading /proc/1180/status File opened for reading /proc/25/comm File opened for reading /proc/113/comm