220e1c910f9577a81be54290fb4751d009a1946026bd51990160bc506b2b68bd

Analysis

max time kernel
125s
max time network
155s
platform
debian-12_armhf
resource
debian12-armhf-20240221-en
resource tags

arch:armhfimage:debian12-armhf-20240221-enkernel:6.1.0-17-armmp-lpaelocale:en-usos:debian-12-armhfsystem
submitted
12-10-2024 11:18

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General

Target

220e1c910f9577a81be54290fb4751d009a1946026bd51990160bc506b2b68bd.elf
Size

5.1MB
MD5

a2dc807281d4e53d566e8a27b5caae6a
SHA1

d704c9516c33fde2b362e0584dc6bcdbb0484962
SHA256

220e1c910f9577a81be54290fb4751d009a1946026bd51990160bc506b2b68bd
SHA512

e1dffa9e29bcadd098ba390eda9da813567b7cb30efa6b9eb5879327c948acc4a886a7562240f899a810d112b90eed6aa785cd486cd4659f406bb59418bdf75b
SSDEEP

49152:PJzG9XxZPF773LVPN9GnMbaVZGNJru8cYWPAXq7nLYvVorzmpxUIU1F1:hzG9Xn53LtN9pbu0Jru8cYWPAXqi

Score

7^/10

defense_evasion discovery persistence privilege_escalation

Malware Config

Signatures

Executes dropped EXE 4 IoCs

ioc	pid	Process
/etc/32678	727	32678
/etc/id.services.conf	801	id.services.conf
/etc/id.services.conf	808	id.services.conf
/etc/32678	809	32678

Modifies Watchdog functionality 1 TTPs 4 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	220e1c910f9577a81be54290fb4751d009a1946026bd51990160bc506b2b68bd.elf
File opened for modification	/dev/misc/watchdog	220e1c910f9577a81be54290fb4751d009a1946026bd51990160bc506b2b68bd.elf
File opened for modification	/dev/watchdog	id.services.conf
File opened for modification	/dev/misc/watchdog	id.services.conf

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

Modifies init.d 2 TTPs 1 IoCs

Adds/modifies system service, likely for persistence.

persistence

Boot or Logon Autostart Execution

T1547

RC Scripts

T1037.004

description	ioc	Process
File opened for modification	/etc/init.d/linux_kill	220e1c910f9577a81be54290fb4751d009a1946026bd51990160bc506b2b68bd.elf

Modifies systemd 2 TTPs 1 IoCs

Adds/ modifies systemd service files. Likely to achieve persistence.

persistence privilege_escalation

XDG Autostart Entries

T1547.013

Systemd Service

T1543.002

description	ioc	Process
File opened for modification	/usr/lib/systemd/system/linux.service	id.services.conf

Enumerates kernel/hardware configuration 1 TTPs 4 IoCs

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

discovery

System Information Discovery

T1082

description	ioc	Process
File opened for reading	/sys/kernel/mm/transparent_hugepage/hpage_pmd_size	id.services.conf
File opened for reading	/sys/kernel/mm/transparent_hugepage/hpage_pmd_size	id.services.conf
File opened for reading	/sys/kernel/mm/transparent_hugepage/hpage_pmd_size	220e1c910f9577a81be54290fb4751d009a1946026bd51990160bc506b2b68bd.elf
File opened for reading	/sys/kernel/mm/transparent_hugepage/hpage_pmd_size	220e1c910f9577a81be54290fb4751d009a1946026bd51990160bc506b2b68bd.elf

Reads runtime system information 64 IoCs

Reads data from /proc virtual filesystem.

discovery

description	ioc	Process
File opened for reading	/proc/24/ctty	pkill
File opened for reading	/proc/30/status	pkill
File opened for reading	/proc/47/ctty	pkill
File opened for reading	/proc/317/stat	id.services.conf
File opened for reading	/proc/724/stat	220e1c910f9577a81be54290fb4751d009a1946026bd51990160bc506b2b68bd.elf
File opened for reading	/proc/143/stat	pkill
File opened for reading	/proc/346/ctty	pkill
File opened for reading	/proc/665/stat	pkill
File opened for reading	/proc/342/cgroup	pkill
File opened for reading	/proc/filesystems	systemctl
File opened for reading	/proc/778/stat	220e1c910f9577a81be54290fb4751d009a1946026bd51990160bc506b2b68bd.elf
File opened for reading	/proc/7/cmdline	pkill
File opened for reading	/proc/33/status	pkill
File opened for reading	/proc/339/stat	id.services.conf
File opened for reading	/proc/725/stat	220e1c910f9577a81be54290fb4751d009a1946026bd51990160bc506b2b68bd.elf
File opened for reading	/proc/23/stat	pkill
File opened for reading	/proc/47/stat	pkill
File opened for reading	/proc/57/ctty	pkill
File opened for reading	/proc/339/status	pkill
File opened for reading	/proc/488/stat	pkill
File opened for reading	/proc/625/status	pkill
File opened for reading	/proc/13/cgroup	pkill
File opened for reading	/proc/18/stat	pkill
File opened for reading	/proc/346/cgroup	pkill
File opened for reading	/proc/809/stat	id.services.conf
File opened for reading	/proc/625/ctty	pkill
File opened for reading	/proc/697/stat	220e1c910f9577a81be54290fb4751d009a1946026bd51990160bc506b2b68bd.elf
File opened for reading	/proc/11/cmdline	pkill
File opened for reading	/proc/14/cmdline	pkill
File opened for reading	/proc/27/cgroup	pkill
File opened for reading	/proc/38/cmdline	pkill
File opened for reading	/proc/52/status	pkill
File opened for reading	/proc/249/cmdline	pkill
File opened for reading	/proc/702/cgroup	pkill
File opened for reading	/proc/701/stat	id.services.conf
File opened for reading	/proc/841/stat	id.services.conf
File opened for reading	/proc/754/stat	220e1c910f9577a81be54290fb4751d009a1946026bd51990160bc506b2b68bd.elf
File opened for reading	/proc/24/cmdline	pkill
File opened for reading	/proc/47/cmdline	pkill
File opened for reading	/proc/317/status	pkill
File opened for reading	/proc/833/stat	id.services.conf
File opened for reading	/proc/15/cgroup	pkill
File opened for reading	/proc/19/stat	pkill
File opened for reading	/proc/43/cgroup	pkill
File opened for reading	/proc/309/status	pkill
File opened for reading	/proc/21/cgroup	pkill
File opened for reading	/proc/27/status	pkill
File opened for reading	/proc/filesystems	systemctl
File opened for reading	/proc/2/ctty	pkill
File opened for reading	/proc/8/cgroup	pkill
File opened for reading	/proc/30/cgroup	pkill
File opened for reading	/proc/43/ctty	pkill
File opened for reading	/proc/309/ctty	pkill
File opened for reading	/proc/309/stat	id.services.conf
File opened for reading	/proc/27/stat	pkill
File opened for reading	/proc/144/cgroup	pkill
File opened for reading	/proc/625/stat	220e1c910f9577a81be54290fb4751d009a1946026bd51990160bc506b2b68bd.elf
File opened for reading	/proc/16/ctty	pkill
File opened for reading	/proc/219/status	pkill
File opened for reading	/proc/29/cgroup	pkill
File opened for reading	/proc/32/status	pkill
File opened for reading	/proc/46/status	pkill
File opened for reading	/proc/727/status	pkill
File opened for reading	/proc/23/status	pkill

GoLang User-Agent 3 IoCs

Uses default user-agent string defined by GoLang HTTP packages.

description	flow	ioc
HTTP User-Agent header	10	Go-http-client/1.1
HTTP User-Agent header	28	Go-http-client/1.1
HTTP User-Agent header	32	Go-http-client/1.1

/tmp/220e1c910f9577a81be54290fb4751d009a1946026bd51990160bc506b2b68bd.elf
/tmp/220e1c910f9577a81be54290fb4751d009a1946026bd51990160bc506b2b68bd.elf
1⤵
- Enumerates kernel/hardware configuration
PID:704
- /usr/bin/sh
  sh -c "/etc/32678&"
  2⤵
  PID:723
- /usr/sbin/service
  service crond start
  2⤵
  PID:724
- - /usr/bin/basename
    basename /usr/sbin/service
    3⤵
    PID:729
- - /usr/bin/basename
    basename /usr/sbin/service
    3⤵
    PID:738
- - /usr/bin/sed
    sed -ne "s/\\.socket\\s*[a-z]*\\s*\$/.socket/p"
    3⤵
    PID:748
- - /usr/bin/systemctl
    systemctl list-unit-files --full "--type=socket"
    3⤵
    PID:747
- /tmp/220e1c910f9577a81be54290fb4751d009a1946026bd51990160bc506b2b68bd.elf
  /tmp/220e1c910f9577a81be54290fb4751d009a1946026bd51990160bc506b2b68bd.elf " "
  2⤵
  - Modifies Watchdog functionality
  - Modifies init.d
  - Enumerates kernel/hardware configuration
  - Reads runtime system information
  PID:725
- - /usr/sbin/update-rc.d
    update-rc.d linux_kill defaults
    3⤵
    PID:742
  - - /usr/local/sbin/systemctl
      systemctl daemon-reload
      4⤵
      PID:759
  - - /usr/local/bin/systemctl
      systemctl daemon-reload
      4⤵
      PID:759
  - - /usr/sbin/systemctl
      systemctl daemon-reload
      4⤵
      PID:759
  - - /usr/bin/systemctl
      systemctl daemon-reload
      4⤵
      PID:759

/etc/32678
/etc/32678
1⤵
- Executes dropped EXE
PID:727
- /usr/bin/sleep
  sleep 60
  2⤵
  PID:733
- /etc/id.services.conf
  /etc/id.services.conf
  2⤵
  - Executes dropped EXE
  - Enumerates kernel/hardware configuration
  PID:801
- - /usr/bin/pkill
    pkill -9 32678
    3⤵
    - Reads runtime system information
    PID:805
- - /usr/bin/sh
    sh -c "/etc/32678&"
    3⤵
    PID:806
- - /usr/sbin/service
    service crond start
    3⤵
    PID:807
  - - /usr/bin/basename
      basename /usr/sbin/service
      4⤵
      PID:810
  - - /usr/bin/basename
      basename /usr/sbin/service
      4⤵
      PID:815
  - - /usr/bin/systemctl
      systemctl list-unit-files --full "--type=socket"
      4⤵
      Reads runtime system information
      PID:823
  - - /usr/bin/sed
      sed -ne "s/\\.socket\\s*[a-z]*\\s*\$/.socket/p"
      4⤵
      PID:824
- - /etc/id.services.conf
    /etc/id.services.conf " "
    3⤵
    - Executes dropped EXE
    - Modifies Watchdog functionality
    - Modifies systemd
    - Enumerates kernel/hardware configuration
    - Reads runtime system information
    PID:808
  - - /usr/bin/sh
      sh -c "cd /boot;systemctl daemon-reload;systemctl enable linux.service;systemctl start linux.service;journalctl -xe --no-pager"
      4⤵
      PID:825
    - - /usr/bin/systemctl
        
        systemctl daemon-reload
        5⤵
        
        PID:826
    - - /usr/bin/systemctl
        
        systemctl enable linux.service
        5⤵
        
        PID:844
    - - /usr/bin/systemctl
        
        systemctl start linux.service
        5⤵
        
        PID:860
    - - /usr/bin/journalctl
        
        journalctl -xe --no-pager
        5⤵
        
        PID:869

/usr/local/sbin/systemctl
systemctl start crond.service
1⤵
PID:724

/usr/local/bin/systemctl
systemctl start crond.service
1⤵
PID:724

/usr/sbin/systemctl
systemctl start crond.service
1⤵
PID:724

/usr/bin/systemctl
systemctl start crond.service
1⤵
PID:724

/etc/32678
/etc/32678
1⤵
- Executes dropped EXE
PID:809
- /usr/bin/sleep
  sleep 60
  2⤵
  PID:811

/usr/local/sbin/systemctl
systemctl start crond.service
1⤵
PID:807

/usr/local/bin/systemctl
systemctl start crond.service
1⤵
PID:807

/usr/sbin/systemctl
systemctl start crond.service
1⤵
PID:807

/usr/bin/systemctl
systemctl start crond.service
1⤵
- Reads runtime system information
PID:807

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

XDG Autostart Entries

T1547.013

Boot or Logon Initialization Scripts

T1037

RC Scripts

T1037.004

Create or Modify System Process

T1543

Systemd Service

T1543.002

Privilege Escalation

Boot or Logon Autostart Execution

T1547

XDG Autostart Entries

T1547.013

Boot or Logon Initialization Scripts

T1037

RC Scripts

T1037.004

Create or Modify System Process

T1543

Systemd Service

T1543.002

Defense Evasion

Impair Defenses

T1562

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

/etc/32678

Filesize
61B

MD5
768eaf287796da19e1cf5e0b2fb1b161

SHA1
6a1ce2ee5ccc86d1f33806feb14547b35290df2a

SHA256
1d22620dfb2a6715e5d745aed5cf841ede0e75e1747f12b9b925a2d346bc7ecb

SHA512
e6af30c9df4f7f47696069511e64ecbc8e841629d692ee4056503df3533fb7a7a74960698826260355e1dba7b6c562482a27a39bb51a4237473ce4b68472d620

Download Submit
/etc/init.d/linux_kill

Filesize
189B

MD5
3909975f7cc0d1121c1819b800069f31

SHA1
3e68de708c2e6c40fab6794afdee3104e5590189

SHA256
6876dac71f13a068afb863d257134275f2edba43b2acaf4924fabf97c079070b

SHA512
50600cceeb03b05f45ae61d890caee9f51ff390b6776930866e527e071d65d08241fc66673fd9b99d62fbc77d3c00fc3de4d7378cbc42f5daba5d83072b0906e

Download Submit

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads