9d370bc2eef356436e19325149a976ba171f047ad8501612d397642b9bbe36fa

Analysis

max time kernel
149s
max time network
233s
platform
debian-9_mips
resource
debian9-mipsbe-20240418-en
resource tags

arch:mipsimage:debian9-mipsbe-20240418-enkernel:4.9.0-13-4kc-maltalocale:en-usos:debian-9-mipssystem
submitted
27-07-2024 02:00

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General

Target

ded36b111f815e57e2658bd881beaf247be1fea999902456df83840100f5ae65.elf
Size

134KB
MD5

6b0fb88c187a6dbf48017f66f262edab
SHA1

c27a02fbe6525becc24193041359a9adce663f24
SHA256

ded36b111f815e57e2658bd881beaf247be1fea999902456df83840100f5ae65
SHA512

1aae2f3a544e5145747b5f2dfc68957a11d9d14c9229c977dbb954e3f361974c9530ac152fd288e3cec973d9e6660a6f0d185b656647cd7a1e258b8bcf0448a1
SSDEEP

3072:phNlHuBafLeBtfCzpta8xlBIOdVo3/4sxLJ10xioX:p3lOYoaja8xzx/0wsxzSi6

Score

9^/10

discovery persistence upx

Malware Config

Signatures

Contacts a large (3895) amount of remote hosts 1 TTPs
This may indicate a network scan to discover remotely running services.
discovery

Network Service Discovery
T1046
Patched UPX-packed file 1 IoCs
Sample is packed with UPX but required header fields are zeroed out to prevent unpacking with the default UPX tool.

Processes:

resource yara_rule

/usr/networks patched_upx

resource	yara_rule
/usr/networks	patched_upx

Modifies Watchdog functionality 1 TTPs 2 IoCs

Malware like Mirai modifies the Watchdog to prevent it restarting an infected system.

Impair Defenses

T1562

Processes:

ded36b111f815e57e2658bd881beaf247be1fea999902456df83840100f5ae65.elf

description	ioc	process
File opened for modification	/dev/watchdog	ded36b111f815e57e2658bd881beaf247be1fea999902456df83840100f5ae65.elf
File opened for modification	/dev/misc/watchdog	ded36b111f815e57e2658bd881beaf247be1fea999902456df83840100f5ae65.elf

UPX packed file 1 IoCs
Detects executables packed with UPX/modified UPX open source packer.
upx

Processes:

resource yara_rule

/usr/networks upx
Enumerates active TCP sockets 1 TTPs 1 IoCs
Gets active TCP sockets from /proc virtual filesystem.

System Network Connections Discovery
T1049

Processes:

ded36b111f815e57e2658bd881beaf247be1fea999902456df83840100f5ae65.elf

description ioc process

File opened for reading /proc/net/tcp ded36b111f815e57e2658bd881beaf247be1fea999902456df83840100f5ae65.elf
Enumerates running processes
Discovers information about currently running processes on the system

resource	yara_rule
/usr/networks	upx

Modifies init.d 1 TTPs 4 IoCs

Adds/modifies system service, likely for persistence.

persistence

Boot or Logon Autostart Execution

T1547

Processes:

ded36b111f815e57e2658bd881beaf247be1fea999902456df83840100f5ae65.elf

description	ioc	process
File opened for modification	/etc/init.d/S95baby.sh	ded36b111f815e57e2658bd881beaf247be1fea999902456df83840100f5ae65.elf
File opened for modification	/etc/init.d/keyboard-setup.sh	ded36b111f815e57e2658bd881beaf247be1fea999902456df83840100f5ae65.elf
File opened for modification	/etc/init.d/console-setup.sh	ded36b111f815e57e2658bd881beaf247be1fea999902456df83840100f5ae65.elf
File opened for modification	/etc/init.d/hwclock.sh	ded36b111f815e57e2658bd881beaf247be1fea999902456df83840100f5ae65.elf

Reads system routing table 1 TTPs 1 IoCs
Gets active network interfaces from /proc virtual filesystem.

System Network Configuration Discovery
T1016

Processes:

ded36b111f815e57e2658bd881beaf247be1fea999902456df83840100f5ae65.elf

description ioc process

File opened for reading /proc/net/route ded36b111f815e57e2658bd881beaf247be1fea999902456df83840100f5ae65.elf

description	ioc	process
File opened for reading	/proc/net/route	ded36b111f815e57e2658bd881beaf247be1fea999902456df83840100f5ae65.elf

Writes file to system bin folder 1 TTPs 2 IoCs

Hijack Execution Flow

T1574

Processes:

ded36b111f815e57e2658bd881beaf247be1fea999902456df83840100f5ae65.elf

description	ioc	process
File opened for modification	/sbin/watchdog	ded36b111f815e57e2658bd881beaf247be1fea999902456df83840100f5ae65.elf
File opened for modification	/bin/watchdog	ded36b111f815e57e2658bd881beaf247be1fea999902456df83840100f5ae65.elf

Changes its process name 1 IoCs

Processes:

description ioc pid

Changes the process name, possibly in an attempt to hide itself sshd 742

description	ioc	pid
Changes the process name, possibly in an attempt to hide itself	sshd	742

Reads system network configuration 1 TTPs 3 IoCs

Uses contents of /proc filesystem to enumerate network settings.

System Network Configuration Discovery

T1016

Processes:

ded36b111f815e57e2658bd881beaf247be1fea999902456df83840100f5ae65.elf

description	ioc	process
File opened for reading	/proc/net/tcp	ded36b111f815e57e2658bd881beaf247be1fea999902456df83840100f5ae65.elf
File opened for reading	/proc/net/raw	ded36b111f815e57e2658bd881beaf247be1fea999902456df83840100f5ae65.elf
File opened for reading	/proc/net/route	ded36b111f815e57e2658bd881beaf247be1fea999902456df83840100f5ae65.elf

Reads runtime system information 64 IoCs

Reads data from /proc virtual filesystem.

Processes:

killallded36b111f815e57e2658bd881beaf247be1fea999902456df83840100f5ae65.elf

description	ioc	process
File opened for reading	/proc/738/stat	killall
File opened for reading	/proc/739/stat	killall
File opened for reading	/proc/154/cmdline	killall
File opened for reading	/proc/676/stat	killall
File opened for reading	/proc/2/stat	killall
File opened for reading	/proc/4/stat	killall
File opened for reading	/proc/11/stat	killall
File opened for reading	/proc/71/stat	killall
File opened for reading	/proc/127/stat	killall
File opened for reading	/proc/336/stat	killall
File opened for reading	/proc/428/stat	killall
File opened for reading	/proc/mounts	ded36b111f815e57e2658bd881beaf247be1fea999902456df83840100f5ae65.elf
File opened for reading	/proc/732/stat	killall
File opened for reading	/proc/747/stat	killall
File opened for reading	/proc/5/stat	killall
File opened for reading	/proc/7/stat	killall
File opened for reading	/proc/72/stat	killall
File opened for reading	/proc/73/stat	killall
File opened for reading	/proc/256/stat	killall
File opened for reading	/proc/1/stat	killall
File opened for reading	/proc/3/stat	killall
File opened for reading	/proc/24/stat	killall
File opened for reading	/proc/675/stat	killall
File opened for reading	/proc/742/cmdline	killall
File opened for reading	/proc/21/stat	killall
File opened for reading	/proc/126/stat	killall
File opened for reading	/proc/160/stat	killall
File opened for reading	/proc/385/stat	killall
File opened for reading	/proc/722/stat	killall
File opened for reading	/proc/733/cmdline	killall
File opened for reading	/proc/744/stat	killall
File opened for reading	/proc/8/stat	killall
File opened for reading	/proc/75/stat	killall
File opened for reading	/proc/127/cmdline	killall
File opened for reading	/proc/176/stat	killall
File opened for reading	/proc/341/stat	killall
File opened for reading	/proc/81/stat	killall
File opened for reading	/proc/345/stat	killall
File opened for reading	/proc/382/stat	killall
File opened for reading	/proc/14/stat	killall
File opened for reading	/proc/19/stat	killall
File opened for reading	/proc/23/stat	killall
File opened for reading	/proc/37/stat	killall
File opened for reading	/proc/79/stat	killall
File opened for reading	/proc/383/stat	killall
File opened for reading	/proc/735/stat	killall
File opened for reading	/proc/732/cmdline	killall
File opened for reading	/proc/self/exe	ded36b111f815e57e2658bd881beaf247be1fea999902456df83840100f5ae65.elf
File opened for reading	/proc/filesystems	killall
File opened for reading	/proc/6/stat	killall
File opened for reading	/proc/18/stat	killall
File opened for reading	/proc/74/stat	killall
File opened for reading	/proc/9/stat	killall
File opened for reading	/proc/22/stat	killall
File opened for reading	/proc/344/stat	killall
File opened for reading	/proc/13/stat	killall
File opened for reading	/proc/15/stat	killall
File opened for reading	/proc/36/stat	killall
File opened for reading	/proc/70/stat	killall
File opened for reading	/proc/82/stat	killall
File opened for reading	/proc/16/stat	killall
File opened for reading	/proc/154/stat	killall
File opened for reading	/proc/672/stat	killall
File opened for reading	/proc/733/stat	killall

Writes file to tmp directory 1 IoCs
Malware often drops required files in the /tmp directory.

Processes:

ded36b111f815e57e2658bd881beaf247be1fea999902456df83840100f5ae65.elf

description ioc process

File opened for modification /tmp/.ips ded36b111f815e57e2658bd881beaf247be1fea999902456df83840100f5ae65.elf

description	ioc	process
File opened for modification	/tmp/.ips	ded36b111f815e57e2658bd881beaf247be1fea999902456df83840100f5ae65.elf

/tmp/ded36b111f815e57e2658bd881beaf247be1fea999902456df83840100f5ae65.elf
/tmp/ded36b111f815e57e2658bd881beaf247be1fea999902456df83840100f5ae65.elf
1⤵
- Modifies Watchdog functionality
- Enumerates active TCP sockets
- Modifies init.d
- Reads system routing table
- Writes file to system bin folder
- Reads system network configuration
- Reads runtime system information
- Writes file to tmp directory
PID:740
- /bin/sh
  sh -c "killall -9 telnetd utelnetd scfgmgr"
  2⤵
  PID:743
- - /usr/bin/killall
    killall -9 telnetd utelnetd scfgmgr
    3⤵
    - Reads runtime system information
    PID:748
- /bin/sh
  sh -c "iptables -I INPUT -p tcp --destination-port 47293 -j ACCEPT"
  2⤵
  PID:814
- - /sbin/iptables
    iptables -I INPUT -p tcp --destination-port 47293 -j ACCEPT
    3⤵
    PID:817
- /bin/sh
  sh -c "iptables -I INPUT -p tcp --destination-port 22 -j DROP"
  2⤵
  PID:818
- - /sbin/iptables
    iptables -I INPUT -p tcp --destination-port 22 -j DROP
    3⤵
    PID:820
- /bin/sh
  sh -c "iptables -I OUTPUT -p tcp --source-port 47293 -j ACCEPT"
  2⤵
  PID:824
- - /sbin/iptables
    iptables -I OUTPUT -p tcp --source-port 47293 -j ACCEPT
    3⤵
    PID:827
- /bin/sh
  sh -c "iptables -I PREROUTING -t nat -p tcp --destination-port 47293 -j ACCEPT"
  2⤵
  PID:828
- - /sbin/iptables
    iptables -I PREROUTING -t nat -p tcp --destination-port 47293 -j ACCEPT
    3⤵
    PID:829
- /bin/sh
  sh -c "iptables -I INPUT -p tcp --destination-port 23 -j DROP"
  2⤵
  PID:832
- - /sbin/iptables
    iptables -I INPUT -p tcp --destination-port 23 -j DROP
    3⤵
    PID:833
- /bin/sh
  sh -c "iptables -I INPUT -p tcp --destination-port 2323 -j DROP"
  2⤵
  PID:834
- - /sbin/iptables
    iptables -I INPUT -p tcp --destination-port 2323 -j DROP
    3⤵
    PID:841
- /bin/sh
  sh -c "iptables -I POSTROUTING -t nat -p tcp --source-port 47293 -j ACCEPT"
  2⤵
  PID:845
- - /sbin/iptables
    iptables -I POSTROUTING -t nat -p tcp --source-port 47293 -j ACCEPT
    3⤵
    PID:848
- /bin/sh
  sh -c "iptables -I OUTPUT -p tcp --source-port 22 -j DROP"
  2⤵
  PID:847
- - /sbin/iptables
    iptables -I OUTPUT -p tcp --source-port 22 -j DROP
    3⤵
    PID:850
- /bin/sh
  sh -c "iptables -I INPUT -p tcp --dport 47293 -j ACCEPT"
  2⤵
  PID:852
- - /sbin/iptables
    iptables -I INPUT -p tcp --dport 47293 -j ACCEPT
    3⤵
    PID:854
- /bin/sh
  sh -c "iptables -I OUTPUT -p tcp --source-port 23 -j DROP"
  2⤵
  PID:853
- - /sbin/iptables
    iptables -I OUTPUT -p tcp --source-port 23 -j DROP
    3⤵
    PID:855
- /bin/sh
  sh -c "iptables -I OUTPUT -p tcp --sport 47293 -j ACCEPT"
  2⤵
  PID:856
- - /sbin/iptables
    iptables -I OUTPUT -p tcp --sport 47293 -j ACCEPT
    3⤵
    PID:858
- /bin/sh
  sh -c "iptables -I OUTPUT -p tcp --source-port 2323 -j DROP"
  2⤵
  PID:857
- - /sbin/iptables
    iptables -I OUTPUT -p tcp --source-port 2323 -j DROP
    3⤵
    PID:859
- /bin/sh
  sh -c "iptables -I PREROUTING -t nat -p tcp --dport 47293 -j ACCEPT"
  2⤵
  PID:861
- - /sbin/iptables
    iptables -I PREROUTING -t nat -p tcp --dport 47293 -j ACCEPT
    3⤵
    PID:864
- /bin/sh
  sh -c "iptables -I INPUT -p tcp --dport 22 -j DROP"
  2⤵
  PID:862
- - /sbin/iptables
    iptables -I INPUT -p tcp --dport 22 -j DROP
    3⤵
    PID:863
- /bin/sh
  sh -c "iptables -I INPUT -p tcp --dport 23 -j DROP"
  2⤵
  PID:865
- - /sbin/iptables
    iptables -I INPUT -p tcp --dport 23 -j DROP
    3⤵
    PID:867
- /bin/sh
  sh -c "iptables -I POSTROUTING -t nat -p tcp --sport 47293 -j ACCEPT"
  2⤵
  PID:866
- - /sbin/iptables
    iptables -I POSTROUTING -t nat -p tcp --sport 47293 -j ACCEPT
    3⤵
    PID:868
- /bin/sh
  sh -c "iptables -I INPUT -p tcp --dport 2323 -j DROP"
  2⤵
  PID:869
- - /sbin/iptables
    iptables -I INPUT -p tcp --dport 2323 -j DROP
    3⤵
    PID:870
- /bin/sh
  sh -c "iptables -I OUTPUT -p tcp --sport 22 -j DROP"
  2⤵
  PID:871
- - /sbin/iptables
    iptables -I OUTPUT -p tcp --sport 22 -j DROP
    3⤵
    PID:872
- /bin/sh
  sh -c "iptables -I OUTPUT -p tcp --sport 23 -j DROP"
  2⤵
  PID:873
- - /sbin/iptables
    iptables -I OUTPUT -p tcp --sport 23 -j DROP
    3⤵
    PID:875
- /bin/sh
  sh -c "iptables -I OUTPUT -p tcp --sport 2323 -j DROP"
  2⤵
  PID:876
- - /sbin/iptables
    iptables -I OUTPUT -p tcp --sport 2323 -j DROP
    3⤵
    PID:877
- /bin/sh
  sh -c "iptables -I INPUT -p tcp --destination-port 58000 -j DROP"
  2⤵
  PID:878
- - /sbin/iptables
    iptables -I INPUT -p tcp --destination-port 58000 -j DROP
    3⤵
    PID:879
- /bin/sh
  sh -c "iptables -I OUTPUT -p tcp --source-port 58000 -j DROP"
  2⤵
  PID:880
- - /sbin/iptables
    iptables -I OUTPUT -p tcp --source-port 58000 -j DROP
    3⤵
    PID:881
- /bin/sh
  sh -c "iptables -I INPUT -p tcp --dport 58000 -j DROP"
  2⤵
  PID:882
- - /sbin/iptables
    iptables -I INPUT -p tcp --dport 58000 -j DROP
    3⤵
    PID:883
- /bin/sh
  sh -c "iptables -I OUTPUT -p tcp --sport 58000 -j DROP"
  2⤵
  PID:884
- - /sbin/iptables
    iptables -I OUTPUT -p tcp --sport 58000 -j DROP
    3⤵
    PID:885
- /bin/sh
  sh -c "cfgtool set /mnt/jffs2/hw_ctree.xml InternetGatewayDevice.ManagementServer URL \"http://127.0.0.1\""
  2⤵
  PID:886
- /bin/sh
  sh -c "cfgtool set /mnt/jffs2/hw_ctree.xml InternetGatewayDevice.ManagementServer ConnectionRequestPassword \"acsMozi\""
  2⤵
  PID:887
- /bin/sh
  sh -c "iptables -I INPUT -p tcp --destination-port 35000 -j DROP"
  2⤵
  PID:888
- - /sbin/iptables
    iptables -I INPUT -p tcp --destination-port 35000 -j DROP
    3⤵
    PID:889
- /bin/sh
  sh -c "iptables -I INPUT -p tcp --destination-port 50023 -j DROP"
  2⤵
  PID:890
- - /sbin/iptables
    iptables -I INPUT -p tcp --destination-port 50023 -j DROP
    3⤵
    PID:891
- /bin/sh
  sh -c "iptables -I OUTPUT -p tcp --source-port 50023 -j DROP"
  2⤵
  PID:892
- - /sbin/iptables
    iptables -I OUTPUT -p tcp --source-port 50023 -j DROP
    3⤵
    PID:893
- /bin/sh
  sh -c "iptables -I OUTPUT -p tcp --source-port 35000 -j DROP"
  2⤵
  PID:894
- - /sbin/iptables
    iptables -I OUTPUT -p tcp --source-port 35000 -j DROP
    3⤵
    PID:895
- /bin/sh
  sh -c "iptables -I INPUT -p tcp --destination-port 7547 -j DROP"
  2⤵
  PID:896
- - /sbin/iptables
    iptables -I INPUT -p tcp --destination-port 7547 -j DROP
    3⤵
    PID:897
- /bin/sh
  sh -c "iptables -I OUTPUT -p tcp --source-port 7547 -j DROP"
  2⤵
  PID:898
- - /sbin/iptables
    iptables -I OUTPUT -p tcp --source-port 7547 -j DROP
    3⤵
    PID:899
- /bin/sh
  sh -c "iptables -I INPUT -p tcp --dport 35000 -j DROP"
  2⤵
  PID:900
- - /sbin/iptables
    iptables -I INPUT -p tcp --dport 35000 -j DROP
    3⤵
    PID:901
- /bin/sh
  sh -c "iptables -I INPUT -p tcp --dport 50023 -j DROP"
  2⤵
  PID:902
- - /sbin/iptables
    iptables -I INPUT -p tcp --dport 50023 -j DROP
    3⤵
    PID:904
- /bin/sh
  sh -c "iptables -I OUTPUT -p tcp --sport 50023 -j DROP"
  2⤵
  PID:906
- - /sbin/iptables
    iptables -I OUTPUT -p tcp --sport 50023 -j DROP
    3⤵
    PID:907
- /bin/sh
  sh -c "iptables -I OUTPUT -p tcp --sport 35000 -j DROP"
  2⤵
  PID:908
- - /sbin/iptables
    iptables -I OUTPUT -p tcp --sport 35000 -j DROP
    3⤵
    PID:909
- /bin/sh
  sh -c "iptables -I INPUT -p tcp --dport 7547 -j DROP"
  2⤵
  PID:911
- - /sbin/iptables
    iptables -I INPUT -p tcp --dport 7547 -j DROP
    3⤵
    PID:914
- /bin/sh
  sh -c "iptables -I OUTPUT -p tcp --sport 7547 -j DROP"
  2⤵
  PID:915
- - /sbin/iptables
    iptables -I OUTPUT -p tcp --sport 7547 -j DROP
    3⤵
    PID:916
- /bin/sh
  sh -c "iptables -I INPUT -p udp --destination-port 1027 -j ACCEPT"
  2⤵
  PID:944
- - /sbin/iptables
    iptables -I INPUT -p udp --destination-port 1027 -j ACCEPT
    3⤵
    PID:945
- /bin/sh
  sh -c "iptables -I OUTPUT -p udp --source-port 1027 -j ACCEPT"
  2⤵
  PID:946
- - /sbin/iptables
    iptables -I OUTPUT -p udp --source-port 1027 -j ACCEPT
    3⤵
    PID:947
- /bin/sh
  sh -c "iptables -I PREROUTING -t nat -p udp --destination-port 1027 -j ACCEPT"
  2⤵
  PID:948
- - /sbin/iptables
    iptables -I PREROUTING -t nat -p udp --destination-port 1027 -j ACCEPT
    3⤵
    PID:949
- /bin/sh
  sh -c "iptables -I POSTROUTING -t nat -p udp --source-port 1027 -j ACCEPT"
  2⤵
  PID:950
- - /sbin/iptables
    iptables -I POSTROUTING -t nat -p udp --source-port 1027 -j ACCEPT
    3⤵
    PID:951

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Hijack Execution Flow

T1574

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Hijack Execution Flow

T1574

Defense Evasion

Hijack Execution Flow

T1574

Impair Defenses

T1562

Credential Access

Discovery

Network Service Discovery

T1046

System Network Configuration Discovery

T1016

System Network Connections Discovery

T1049

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

/etc/rcS.d/S95baby.sh

Filesize
25B

MD5
1b3235ba10fc04836c941d3d27301956

SHA1
8909655763143702430b8c58b3ae3b04cfd3a29c

SHA256
01ba1fb41632594997a41d0c3a911ae5b3034d566ebb991ef76ad76e6f9e283a

SHA512
98bdb5c266222ccbd63b6f80c87e501c8033dc53b0513d300b8da50e39a207a0b69f8cd3ecc4a128dec340a1186779fedd1049c9b0a70e90d2cb3ae6ebfa4c4d

Download Submit
/usr/networks

Filesize
134KB

MD5
6b0fb88c187a6dbf48017f66f262edab

SHA1
c27a02fbe6525becc24193041359a9adce663f24

SHA256
ded36b111f815e57e2658bd881beaf247be1fea999902456df83840100f5ae65

SHA512
1aae2f3a544e5145747b5f2dfc68957a11d9d14c9229c977dbb954e3f361974c9530ac152fd288e3cec973d9e6660a6f0d185b656647cd7a1e258b8bcf0448a1

Download Submit
memory/740-1-0x00400000-0x004c2fd8-memory.dmp

Download