Analysis
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max time kernel
149s -
max time network
150s -
platform
debian-9_mipsel -
resource
debian9-mipsel-20250410-en -
resource tags
arch:mipselimage:debian9-mipsel-20250410-enkernel:4.9.0-13-4kc-maltalocale:en-usos:debian-9-mipselsystem -
submitted
16/04/2025, 18:46
Behavioral task
behavioral1
Sample
linux_mipsel.elf
Resource
debian9-mipsel-20250410-en
General
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Target
linux_mipsel.elf
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Size
2.2MB
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MD5
06a141032d508ea7639d82c044851727
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SHA1
e49bf29f0c21f0e5a5d0ccee733ed1626df57d6b
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SHA256
d3030e1575b48293f9364353127bd44892ec65120c11d1710eead510373aab55
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SHA512
8173fc77c9ba84dc1a980c907dec6d2a37e20b3dec5438189fb1990e6c161de5a7ebc033091be2bcd7b80fb1bfe1478eb9f81f6811c9417fd95d3419c9cc2e05
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SSDEEP
24576:TTq+DZ51ZFBI2dNPSn3MKEuPVXlod+lCmISWz1v:fT18MyEd+lsSWz1
Malware Config
Signatures
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Kaiji 1 IoCs
Kaiji payload
resource yara_rule behavioral1/files/fstream-3.dat Kaiji -
Kaiji family
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Executes dropped EXE 1 IoCs
ioc pid Process /etc/32676 729 sh -
Creates/modifies Cron job 1 TTPs 1 IoCs
Cron allows running tasks on a schedule, and is commonly used for malware persistence.
description ioc Process File opened for modification /etc/crontab sh -
Changes its process name 1 IoCs
description ioc pid Process Changes the process name, possibly in an attempt to hide itself ksoftirqd/0 722 linux_mipsel.elf -
Command and Scripting Interpreter: Unix Shell 1 TTPs 2 IoCs
Execute scripts via Unix Shell.
pid Process 727 sh 768 sh -
Enumerates kernel/hardware configuration 1 TTPs 33 IoCs
Reads contents of /sys virtual filesystem to enumerate system information.
description ioc Process File opened for reading /sys/fs/kdbus/0-system/bus systemctl File opened for reading /sys/fs/kdbus/0-system/bus systemctl File opened for reading /sys/fs/kdbus/0-system/bus systemctl File opened for reading /sys/kernel/mm/transparent_hugepage/hpage_pmd_size linux_mipsel.elf File opened for reading /sys/kernel/mm/transparent_hugepage/hpage_pmd_size linux_mipsel.elf File opened for reading /sys/fs/kdbus/0-system/bus systemctl File opened for reading /sys/fs/kdbus/0-system/bus systemctl File opened for reading /sys/fs/kdbus/0-system/bus systemctl File opened for reading /sys/fs/kdbus/0-system/bus systemctl File opened for reading /sys/fs/kdbus/0-system/bus systemctl File opened for reading /sys/fs/kdbus/0-system/bus systemctl File opened for reading /sys/fs/kdbus/0-system/bus systemctl File opened for reading /sys/fs/kdbus/0-system/bus systemctl File opened for reading /sys/fs/kdbus/0-system/bus systemctl File opened for reading /sys/fs/kdbus/0-system/bus systemctl File opened for reading /sys/fs/kdbus/0-system/bus systemctl File opened for reading /sys/fs/kdbus/0-system/bus systemctl File opened for reading /sys/fs/kdbus/0-system/bus systemctl File opened for reading /sys/fs/kdbus/0-system/bus systemctl File opened for reading /sys/fs/kdbus/0-system/bus systemctl File opened for reading /sys/fs/kdbus/0-system/bus systemctl File opened for reading /sys/fs/kdbus/0-system/bus systemctl File opened for reading /sys/fs/kdbus/0-system/bus systemctl File opened for reading /sys/fs/kdbus/0-system/bus systemctl File opened for reading /sys/fs/kdbus/0-system/bus systemctl File opened for reading /sys/fs/kdbus/0-system/bus systemctl File opened for reading /sys/fs/kdbus/0-system/bus systemctl File opened for reading /sys/fs/kdbus/0-system/bus systemctl File opened for reading /sys/fs/kdbus/0-system/bus systemctl File opened for reading /sys/fs/kdbus/0-system/bus systemctl File opened for reading /sys/fs/kdbus/0-system/bus systemctl File opened for reading /sys/fs/kdbus/0-system/bus systemctl File opened for reading /sys/fs/kdbus/0-system/bus systemctl -
description ioc Process File opened for reading /proc/filesystems systemctl File opened for reading /proc/filesystems sed File opened for reading /proc/filesystems systemctl File opened for reading /proc/cmdline systemctl File opened for reading /proc/1/environ systemctl File opened for reading /proc/filesystems systemctl File opened for reading /proc/self/stat systemctl File opened for reading /proc/1/environ systemctl File opened for reading /proc/filesystems systemctl File opened for reading /proc/self/stat systemctl File opened for reading /proc/1/environ systemctl File opened for reading /proc/cmdline systemctl File opened for reading /proc/1/environ systemctl File opened for reading /proc/cmdline systemctl File opened for reading /proc/1/environ systemctl File opened for reading /proc/self/stat systemctl File opened for reading /proc/filesystems systemctl File opened for reading /proc/self/stat systemctl File opened for reading /proc/cmdline systemctl File opened for reading /proc/self/stat systemctl File opened for reading /proc/self/stat systemctl File opened for reading /proc/self/stat systemctl File opened for reading /proc/cmdline systemctl File opened for reading /proc/1/environ systemctl File opened for reading /proc/cmdline systemctl File opened for reading /proc/1/environ systemctl File opened for reading /proc/cmdline systemctl File opened for reading /proc/1/environ systemctl File opened for reading /proc/cmdline systemctl File opened for reading /proc/1/environ systemctl File opened for reading /proc/self/stat systemctl File opened for reading /proc/1/environ systemctl File opened for reading /proc/filesystems systemctl File opened for reading /proc/cmdline systemctl File opened for reading /proc/1/environ systemctl File opened for reading /proc/filesystems systemctl File opened for reading /proc/self/stat systemctl File opened for reading /proc/1/environ systemctl File opened for reading /proc/cmdline systemctl File opened for reading /proc/filesystems systemctl File opened for reading /proc/cmdline systemctl File opened for reading /proc/1/environ systemctl File opened for reading /proc/cmdline systemctl File opened for reading /proc/cmdline systemctl File opened for reading /proc/filesystems systemctl File opened for reading /proc/1/environ systemctl File opened for reading /proc/self/stat systemctl File opened for reading /proc/self/stat systemctl File opened for reading /proc/filesystems systemctl File opened for reading /proc/filesystems systemctl File opened for reading /proc/filesystems systemctl File opened for reading /proc/cmdline systemctl File opened for reading /proc/cmdline systemctl File opened for reading /proc/cmdline systemctl File opened for reading /proc/filesystems systemctl File opened for reading /proc/cmdline systemctl File opened for reading /proc/1/environ systemctl File opened for reading /proc/filesystems systemctl File opened for reading /proc/self/stat systemctl File opened for reading /proc/cmdline systemctl File opened for reading /proc/1/environ systemctl File opened for reading /proc/self/stat systemctl File opened for reading /proc/1/environ systemctl File opened for reading /proc/1/environ systemctl -
System Network Configuration Discovery 1 TTPs 2 IoCs
Adversaries may gather information about the network configuration of a system.
pid Process 712 linux_mipsel.elf 717 linux_mipsel.elf
Processes
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/tmp/linux_mipsel.elf/tmp/linux_mipsel.elf1⤵
- Enumerates kernel/hardware configuration
- System Network Configuration Discovery
PID:712 -
/tmp/linux_mipsel.elf/tmp/linux_mipsel.elf " "2⤵
- Changes its process name
- Enumerates kernel/hardware configuration
- System Network Configuration Discovery
PID:717 -
/bin/sh/bin/sh -c "/etc/32676&"3⤵
- Executes dropped EXE
- Command and Scripting Interpreter: Unix Shell
PID:727
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/usr/sbin/serviceservice crond start3⤵PID:730
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/usr/bin/basenamebasename /usr/sbin/service4⤵PID:731
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/usr/bin/basenamebasename /usr/sbin/service4⤵PID:735
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/bin/systemctlsystemctl --quiet is-active multi-user.target4⤵
- Enumerates kernel/hardware configuration
- Reads runtime system information
PID:737
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/bin/systemctlsystemctl list-unit-files --full "--type=socket"4⤵
- Enumerates kernel/hardware configuration
- Reads runtime system information
PID:742
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/bin/sedsed -ne "s/\\.socket\\s*[a-z]*\\s*\$/.socket/p"4⤵
- Reads runtime system information
PID:743
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/bin/systemctlsystemctl -p Triggers show dbus.socket4⤵
- Enumerates kernel/hardware configuration
- Reads runtime system information
PID:749
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/bin/systemctlsystemctl -p Triggers show ssh.socket4⤵
- Enumerates kernel/hardware configuration
- Reads runtime system information
PID:752
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/bin/systemctlsystemctl -p Triggers show syslog.socket4⤵
- Enumerates kernel/hardware configuration
- Reads runtime system information
PID:753
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/bin/systemctlsystemctl -p Triggers show systemd-fsckd.socket4⤵
- Enumerates kernel/hardware configuration
- Reads runtime system information
PID:756
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/bin/systemctlsystemctl -p Triggers show systemd-initctl.socket4⤵
- Enumerates kernel/hardware configuration
- Reads runtime system information
PID:758
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/bin/systemctlsystemctl -p Triggers show systemd-journald-audit.socket4⤵
- Enumerates kernel/hardware configuration
- Reads runtime system information
PID:760
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/bin/systemctlsystemctl -p Triggers show systemd-journald-dev-log.socket4⤵
- Enumerates kernel/hardware configuration
- Reads runtime system information
PID:762
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/bin/systemctlsystemctl -p Triggers show systemd-journald.socket4⤵
- Enumerates kernel/hardware configuration
- Reads runtime system information
PID:763
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/bin/systemctlsystemctl -p Triggers show systemd-networkd.socket4⤵
- Enumerates kernel/hardware configuration
PID:764
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/bin/systemctlsystemctl -p Triggers show systemd-rfkill.socket4⤵
- Enumerates kernel/hardware configuration
- Reads runtime system information
PID:765
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/bin/systemctlsystemctl -p Triggers show systemd-udevd-control.socket4⤵
- Enumerates kernel/hardware configuration
- Reads runtime system information
PID:766
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/bin/systemctlsystemctl -p Triggers show systemd-udevd-kernel.socket4⤵
- Enumerates kernel/hardware configuration
- Reads runtime system information
PID:767
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/usr/local/sbin/systemctlsystemctl start crond.service3⤵PID:730
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/usr/local/bin/systemctlsystemctl start crond.service3⤵PID:730
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/usr/sbin/systemctlsystemctl start crond.service3⤵PID:730
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/usr/bin/systemctlsystemctl start crond.service3⤵PID:730
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/sbin/systemctlsystemctl start crond.service3⤵PID:730
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/bin/systemctlsystemctl start crond.service3⤵
- Enumerates kernel/hardware configuration
- Reads runtime system information
PID:730
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/bin/sh/bin/sh -c "echo \"*/1 * * * * root /.mod \" >> /etc/crontab"3⤵
- Creates/modifies Cron job
- Command and Scripting Interpreter: Unix Shell
PID:768
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/usr/bin/renicerenice -20 7173⤵PID:769
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/bin/mountmount -o bind /tmp/ /proc/7173⤵PID:770
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/usr/sbin/serviceservice cron start3⤵PID:771
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/usr/bin/basenamebasename /usr/sbin/service4⤵PID:772
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/usr/bin/basenamebasename /usr/sbin/service4⤵PID:773
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/bin/systemctlsystemctl --quiet is-active multi-user.target4⤵
- Enumerates kernel/hardware configuration
- Reads runtime system information
PID:774
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/bin/systemctlsystemctl list-unit-files --full "--type=socket"4⤵
- Enumerates kernel/hardware configuration
- Reads runtime system information
PID:776
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/bin/sedsed -ne "s/\\.socket\\s*[a-z]*\\s*\$/.socket/p"4⤵PID:777
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/bin/systemctlsystemctl -p Triggers show dbus.socket4⤵
- Enumerates kernel/hardware configuration
- Reads runtime system information
PID:778
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/bin/systemctlsystemctl -p Triggers show ssh.socket4⤵
- Enumerates kernel/hardware configuration
- Reads runtime system information
PID:779
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/bin/systemctlsystemctl -p Triggers show syslog.socket4⤵
- Enumerates kernel/hardware configuration
- Reads runtime system information
PID:780
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/bin/systemctlsystemctl -p Triggers show systemd-fsckd.socket4⤵
- Enumerates kernel/hardware configuration
- Reads runtime system information
PID:781
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/bin/systemctlsystemctl -p Triggers show systemd-initctl.socket4⤵
- Enumerates kernel/hardware configuration
- Reads runtime system information
PID:782
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/bin/systemctlsystemctl -p Triggers show systemd-journald-audit.socket4⤵
- Enumerates kernel/hardware configuration
- Reads runtime system information
PID:783
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/bin/systemctlsystemctl -p Triggers show systemd-journald-dev-log.socket4⤵
- Enumerates kernel/hardware configuration
- Reads runtime system information
PID:784
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/bin/systemctlsystemctl -p Triggers show systemd-journald.socket4⤵
- Enumerates kernel/hardware configuration
- Reads runtime system information
PID:785
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/bin/systemctlsystemctl -p Triggers show systemd-networkd.socket4⤵
- Enumerates kernel/hardware configuration
- Reads runtime system information
PID:787
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/bin/systemctlsystemctl -p Triggers show systemd-rfkill.socket4⤵
- Enumerates kernel/hardware configuration
- Reads runtime system information
PID:789
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/bin/systemctlsystemctl -p Triggers show systemd-udevd-control.socket4⤵
- Enumerates kernel/hardware configuration
PID:791
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/bin/systemctlsystemctl -p Triggers show systemd-udevd-kernel.socket4⤵
- Enumerates kernel/hardware configuration
- Reads runtime system information
PID:793
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/usr/local/sbin/systemctlsystemctl start cron.service3⤵PID:771
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/usr/local/bin/systemctlsystemctl start cron.service3⤵PID:771
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/usr/sbin/systemctlsystemctl start cron.service3⤵PID:771
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/usr/bin/systemctlsystemctl start cron.service3⤵PID:771
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/sbin/systemctlsystemctl start cron.service3⤵PID:771
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/bin/systemctlsystemctl start cron.service3⤵
- Enumerates kernel/hardware configuration
- Reads runtime system information
PID:771
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/bin/systemctlsystemctl start crond.service3⤵
- Enumerates kernel/hardware configuration
- Reads runtime system information
PID:796
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/etc/32676/etc/326761⤵PID:729
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/bin/sleepsleep 602⤵PID:733
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/bin/sleepsleep 602⤵PID:865
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/bin/sleepsleep 602⤵PID:877
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Network
MITRE ATT&CK Enterprise v16
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
34B
MD5f5a3713282e43c200f30342f5ff5e2ea
SHA12b2ce1a207e2b691a074c6f78f71c4785aae426a
SHA2566ab64e727571458d4884fb2fe82c27c467db0699cb8f648b3f0217c35d2b7511
SHA5125bcb8cd360409147a486755f90e0cdd97183af02ce8de5135b7c6a8a010deb9ef12dcd5ee9a2a8fd2e159347f68e72d6b7fd75e943b4fcd928d7a74b97476013
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Filesize
41B
MD59dda994087c2bc35d06b0eb91ae7aaf2
SHA1ef819199d97a4c059d7554b5a4e9abd43a047236
SHA25654dd5f1b76931783b563f469f8376e8089be1e75a3e067e7697528e01cd4ec44
SHA512673051f1109c74e7c8982fbfe521ce12d676fba52f9cd6a3fd490056b1f978970b359061524ea13e32e9548f37afd54833fb3df53c372ea85be1161538184675
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Filesize
90B
MD54fcae83c2720754f59d2a4f2af72735e
SHA1a24d5cbb1d3b0e5c191ba64c61fad49c4baa5a7a
SHA2565df5b1bb2147e17de64a4a96a10915458c2080c36d7dbe6a47d6857fb2a02220
SHA51262c335b961167260e203fe13fe45598aebdf33b4e25b85927c5fec8d57b92ce5dc883524aa4ec58bde5e5168488a903b2118c062561a497932e93b9da253c402
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Filesize
56B
MD5585f408444cbca746945f0cb63f2c3f0
SHA10e44bae17174f04514e770ca7fc4bec1007e39cd
SHA256ebb961c647363dfa90f302de378e0e61807b9b792fc86616635a713cca8f4299
SHA512022241dbafad55164701f67ef5b84154e3af97c5dfe77dee7bf8406f2befbd2962bbf4f243432b2f41d6c2376b87fcf551fd6945e03ddb02a5619c2f0f69c596
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Filesize
2.2MB
MD506a141032d508ea7639d82c044851727
SHA1e49bf29f0c21f0e5a5d0ccee733ed1626df57d6b
SHA256d3030e1575b48293f9364353127bd44892ec65120c11d1710eead510373aab55
SHA5128173fc77c9ba84dc1a980c907dec6d2a37e20b3dec5438189fb1990e6c161de5a7ebc033091be2bcd7b80fb1bfe1478eb9f81f6811c9417fd95d3419c9cc2e05
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Filesize
917B
MD5c8f763c31589dc4e50bf4b3ae51a3a18
SHA16b4b735a4bd385c07eeebc2ca13d9bd29a175a74
SHA2569f8972f2b1980f7d2b4483ea08970e491880a9c6a301a5868ecefebd3e19af70
SHA5123bc66301adbac289bb7a4e022bd472fbba14906566d088325139224e7bc62396cfe6490094bc23364399807d7113914d8892efcdfd8d1f005e096994848b080a
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Filesize
240KB
MD5bb4edcad76062a76284c69f5fe4e50ea
SHA186055be4ce94fa3cffa9924e7b511e95df636606
SHA256b7e25e128c130473f33c5135c78f591f35d7c4a7c5e1246c12eaa298db453474
SHA512254acc62d2f83f5a4686adcf3fe6ad4697f392c288c5baa323830bb6f2466c303fd7bc9f237e98b2ca76bc3abb6b4c264e042be8c4291ae5cc21b2189d996521