bdbc35721238ef0c38acf962295c36bae59c6472b70bb469439c1c370ce472f6

Analysis

max time kernel
149s
max time network
155s
platform
ubuntu-20.04_amd64
resource
ubuntu2004-amd64-20240508-en
resource tags

arch:amd64arch:i386image:ubuntu2004-amd64-20240508-enkernel:5.4.0-169-genericlocale:en-usos:ubuntu-20.04-amd64system
submitted
23-11-2024 18:22

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General

Target

cve_2024_6387/amd64
Size

5.1MB
MD5

2be087e54204a6c395e05516c53fd579
SHA1

3bdad143cd168a2015aba2053e53f99a24d52ace
SHA256

b60ad90687871ae94e2b33cf2320f523ee614893215335dc5958a6a705488330
SHA512

2ab629a5f9637c7026069e5cc7b473968290b8eb42158dc93c46613d2b4b0ef39149f158b71dda8b2c8bbbebd58ba28cf5437fc0d083fca37deb84423a769db8
SSDEEP

49152:YB9Em2vjYVfh5jw9aF8k4yHwXrD3LwJKiCb85E6l9HblTLEGdvIRKnuI:QDVf/Y4jMrDr8E+rvuK1

Score

7^/10

defense_evasion discovery infostealer persistence privilege_escalation

Malware Config

Signatures

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

Processes:

amd64

description	ioc	Process
File opened for modification	/dev/misc/watchdog	amd64
File opened for modification	/dev/watchdog	amd64

Reads EFI boot settings 1 TTPs 5 IoCs

Reads EFI boot settings from the efivars filesystem, may contain security secrets or sensitive data.

infostealer

Bootkit

T1542.003

Processes:

systemctlsystemctlsystemctlsystemctlsystemctl

description	ioc	Process
File opened for reading	/sys/firmware/efi/efivars/SystemdOptions-8cf2644b-4b0b-428f-9387-6d876050dc67	systemctl
File opened for reading	/sys/firmware/efi/efivars/SystemdOptions-8cf2644b-4b0b-428f-9387-6d876050dc67	systemctl
File opened for reading	/sys/firmware/efi/efivars/SystemdOptions-8cf2644b-4b0b-428f-9387-6d876050dc67	systemctl
File opened for reading	/sys/firmware/efi/efivars/SystemdOptions-8cf2644b-4b0b-428f-9387-6d876050dc67	systemctl
File opened for reading	/sys/firmware/efi/efivars/SystemdOptions-8cf2644b-4b0b-428f-9387-6d876050dc67	systemctl

Creates/modifies environment variables 1 TTPs 3 IoCs

Creating/modifying environment variables is a common persistence mechanism.

persistence privilege_escalation defense_evasion

Path Interception by PATH Environment Variable

T1574.007

Processes:

amd64

description	ioc	Process
File opened for modification	/etc/profile.d/bash.cfg	amd64
File opened for modification	/etc/profile.d/bash.cfg.sh	amd64
File opened for modification	/etc/profile.d/gateway.sh	amd64

Modifies init.d 2 TTPs 34 IoCs

Adds/modifies system service, likely for persistence.

persistence

Boot or Logon Autostart Execution

T1547

RC Scripts

T1037.004

Processes:

amd64

description	ioc	Process
File opened for modification	/etc/init.d/plymouth-log	amd64
File opened for modification	/etc/init.d/ssh	amd64
File opened for modification	/etc/init.d/bluetooth	amd64
File opened for modification	/etc/init.d/cups-browsed	amd64
File opened for modification	/etc/init.d/rsync	amd64
File opened for modification	/etc/init.d/saned	amd64
File opened for modification	/etc/init.d/unattended-upgrades	amd64
File opened for modification	/etc/init.d/gdm3	amd64
File opened for modification	/etc/init.d/procps	amd64
File opened for modification	/etc/init.d/openvpn	amd64
File opened for modification	/etc/init.d/spice-vdagent	amd64
File opened for modification	/etc/init.d/acpid	amd64
File opened for modification	/etc/init.d/anacron	amd64
File opened for modification	/etc/init.d/console-setup.sh	amd64
File opened for modification	/etc/init.d/uuidd	amd64
File opened for modification	/etc/init.d/dns-udp4	amd64
File opened for modification	/etc/init.d/auditd	amd64
File opened for modification	/etc/init.d/avahi-daemon	amd64
File opened for modification	/etc/init.d/cups	amd64
File opened for modification	/etc/init.d/ufw	amd64
File opened for modification	/etc/init.d/irqbalance	amd64
File opened for modification	/etc/init.d/keyboard-setup.sh	amd64
File opened for modification	/etc/init.d/apparmor	amd64
File opened for modification	/etc/init.d/dbus	amd64
File opened for modification	/etc/init.d/selinux-autorelabel	amd64
File opened for modification	/etc/init.d/udev	amd64
File opened for modification	/etc/init.d/apport	amd64
File opened for modification	/etc/init.d/hwclock.sh	amd64
File opened for modification	/etc/init.d/kmod	amd64
File opened for modification	/etc/init.d/plymouth	amd64
File opened for modification	/etc/init.d/rsyslog	amd64
File opened for modification	/etc/init.d/x11-common	amd64
File opened for modification	/etc/init.d/alsa-utils	amd64
File opened for modification	/etc/init.d/cron	amd64

Modifies Bash startup script 2 TTPs 3 IoCs

persistence

Boot or Logon Autostart Execution

T1547

Unix Shell Configuration Modification

T1546.004

Processes:

amd64

description	ioc	Process
File opened for modification	/etc/profile.d/bash.cfg	amd64
File opened for modification	/etc/profile.d/bash.cfg.sh	amd64
File opened for modification	/etc/profile.d/gateway.sh	amd64

Enumerates kernel/hardware configuration 1 TTPs 2 IoCs

Reads contents of /sys virtual filesystem to enumerate system information.

discovery

System Information Discovery

T1082

Processes:

amd64amd64

description	ioc	Process
File opened for reading	/sys/kernel/mm/transparent_hugepage/hpage_pmd_size	amd64
File opened for reading	/sys/kernel/mm/transparent_hugepage/hpage_pmd_size	amd64

Reads runtime system information 32 IoCs

Reads data from /proc virtual filesystem.

discovery

Processes:

systemctlsystemctlsystemctlsystemctlsystemctlmountsed

description	ioc	Process
File opened for reading	/proc/self/stat	systemctl
File opened for reading	/proc/1/sched	systemctl
File opened for reading	/proc/cmdline	systemctl
File opened for reading	/proc/filesystems	systemctl
File opened for reading	/proc/cmdline	systemctl
File opened for reading	/proc/1/sched	systemctl
File opened for reading	/proc/cmdline	systemctl
File opened for reading	/proc/cmdline	systemctl
File opened for reading	/proc/filesystems	systemctl
File opened for reading	/proc/filesystems	systemctl
File opened for reading	/proc/sys/kernel/osrelease	systemctl
File opened for reading	/proc/1/environ	systemctl
File opened for reading	/proc/filesystems	systemctl
File opened for reading	/proc/self/stat	systemctl
File opened for reading	/proc/1/sched	systemctl
File opened for reading	/proc/sys/kernel/osrelease	systemctl
File opened for reading	/proc/filesystems	mount
File opened for reading	/proc/self/stat	systemctl
File opened for reading	/proc/filesystems	systemctl
File opened for reading	/proc/sys/kernel/osrelease	systemctl
File opened for reading	/proc/1/environ	systemctl
File opened for reading	/proc/cmdline	systemctl
File opened for reading	/proc/filesystems	sed
File opened for reading	/proc/sys/kernel/osrelease	systemctl
File opened for reading	/proc/1/environ	systemctl
File opened for reading	/proc/1/environ	systemctl
File opened for reading	/proc/1/sched	systemctl
File opened for reading	/proc/1/environ	systemctl
File opened for reading	/proc/1/sched	systemctl
File opened for reading	/proc/self/stat	systemctl
File opened for reading	/proc/self/stat	systemctl
File opened for reading	/proc/sys/kernel/osrelease	systemctl

/tmp/cve_2024_6387/amd64
/tmp/cve_2024_6387/amd64
1⤵
- Enumerates kernel/hardware configuration
PID:1446
- /tmp/cve_2024_6387/amd64
  /tmp/cve_2024_6387/amd64 " "
  2⤵
  - Modifies Watchdog functionality
  - Creates/modifies environment variables
  - Modifies init.d
  - Modifies Bash startup script
  - Enumerates kernel/hardware configuration
  PID:1450
- - /usr/sbin/update-rc.d
    update-rc.d dns-udp4 defaults
    3⤵
    PID:1454
  - - /usr/local/sbin/systemctl
      systemctl daemon-reload
      4⤵
      PID:1455
  - - /usr/local/bin/systemctl
      systemctl daemon-reload
      4⤵
      PID:1455
  - - /usr/sbin/systemctl
      systemctl daemon-reload
      4⤵
      PID:1455
  - - /usr/bin/systemctl
      systemctl daemon-reload
      4⤵
      Reads EFI boot settings
      Reads runtime system information
      PID:1455
- - /usr/bin/mount
    mount -o bind /tmp/ /proc/1450
    3⤵
    - Reads runtime system information
    PID:1481
- - /usr/sbin/service
    service cron start
    3⤵
    PID:1497
  - - /usr/bin/basename
      basename /usr/sbin/service
      4⤵
      PID:1500
  - - /usr/bin/basename
      basename /usr/sbin/service
      4⤵
      PID:1501
  - - /usr/bin/systemctl
      systemctl --quiet is-active multi-user.target
      4⤵
      Reads EFI boot settings
      Reads runtime system information
      PID:1502
  - - /usr/bin/sed
      sed -ne "s/\\.socket\\s*[a-z]*\\s*\$/.socket/p"
      4⤵
      Reads runtime system information
      PID:1505
  - - /usr/bin/systemctl
      systemctl list-unit-files --full "--type=socket"
      4⤵
      Reads EFI boot settings
      Reads runtime system information
      PID:1504
- - /usr/local/sbin/systemctl
    systemctl start cron.service
    3⤵
    PID:1497
- - /usr/local/bin/systemctl
    systemctl start cron.service
    3⤵
    PID:1497
- - /usr/sbin/systemctl
    systemctl start cron.service
    3⤵
    PID:1497
- - /usr/bin/systemctl
    systemctl start cron.service
    3⤵
    - Reads EFI boot settings
    - Reads runtime system information
    PID:1497
- - /usr/bin/systemctl
    systemctl start crond.service
    3⤵
    - Reads EFI boot settings
    - Reads runtime system information
    PID:1506

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Boot or Logon Initialization Scripts

T1037

RC Scripts

T1037.004

Event Triggered Execution

T1546

Unix Shell Configuration Modification

T1546.004

Hijack Execution Flow

T1574

Path Interception by PATH Environment Variable

T1574.007

Pre-OS Boot

T1542

Bootkit

T1542.003

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Boot or Logon Initialization Scripts

T1037

RC Scripts

T1037.004

Event Triggered Execution

T1546

Unix Shell Configuration Modification

T1546.004

Hijack Execution Flow

T1574

Path Interception by PATH Environment Variable

T1574.007

Defense Evasion

Hijack Execution Flow

T1574

Path Interception by PATH Environment Variable

T1574.007

Impair Defenses

T1562

Pre-OS Boot

T1542

Bootkit

T1542.003

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

/.mod

Filesize
27B

MD5
f449ef47c4f79ab4ecfe3d11022333d5

SHA1
61ebb524cee5a049cc96bf2cbf339a47dcb1b622

SHA256
503dffa20530956c5f61187e00935f20fe508c35dbb1fcf665b5d28d07d3d704

SHA512
a7015de8bd582dbf7ce6df708a58a725e1b1cd472c6616fbb89a9738c533c042ac39c071ca0cf2fc5df8e56f33bf8a28b1ebd3076570f5028cff773af89031f6

Download Submit
/etc/.cfg

Filesize
57B

MD5
25bfc97b9241077f7ee65c9d5831c0ae

SHA1
4d1e84cfe6f0619642400cbcc77ee008d452f622

SHA256
7e18da2137e9453fd98ed61aa79420a173383b2f7a5fe6538b70fbb560f9b3f6

SHA512
e3686c1fe664e67fc503275c6c0fa831ee43c1b081d8f826a616314505e3f952f98a8697911d1799e3f8c1957cd3a1bb5f888766877e5081b32942a6f2d8bff3

Download Submit
/etc/.cfg

Filesize
114B

MD5
04bd45f82f0d8e01730025c18ae058f0

SHA1
0af2329fddc70b3d68ca27c302721be2c9dc865c

SHA256
2c736a552b825411f322e866a13ded2b9cbc27d95abbcd49467f1ba0ab422940

SHA512
a43ddc207efd5a8122996e9f2f25b1b4b0e610f10766f7f14eeeff985b7f76ea76063048e0180c3b4937bae6cbae0d3912ac57b14ebf4540fc7fe229ab52e37c

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/etc/init.d/dns-udp4

Filesize
159B

MD5
79f1a0bf1a838c817142e43a5818733a

SHA1
768ed04a737dbdc969165092694e0e977321ca19

SHA256
a3f7d4499b03a14ff2de76122b6a61c221151f59daa6a63a78ae5a805c95a482

SHA512
b6d6f76f3e5b768a6670e05276724b70609259c856ba90ad34f8a782ac40134b9cf5cdabebb4aa55f076a786cedf8491adda9835f9d4aee90bd1820a45b2fbce

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/etc/profile.d/gateway.sh

Filesize
4KB

MD5
4112c36725ae465f31485ef9fa0d132d

SHA1
9eafc2693ebbf829390bc5f53639cb253eae9e9e

SHA256
f530cd599d2505c40f29bd284ce61bc7227f0579ff88160ab72a00a3ddfe0f21

SHA512
dcb6f4a6d592d0f8f766e39dfa5bc5b8eb52a1924c5287ed64a5fefeca344cbb4c48a596e1335b30757d30918c90d439ad453c22b62216953f44349c153a348b

Download Submit