e15e93db3ce3a8a22adb4b18e0e37b93f39c495e4a97008f9b1a9a42e1fac2b0

General

Target

9a111588a7db15b796421bd13a949cd4
Size

93KB
MD5

9a111588a7db15b796421bd13a949cd4
SHA1

034c8c51a58be11ca620ce3eb0d43d5a59275d2f
SHA256

e15e93db3ce3a8a22adb4b18e0e37b93f39c495e4a97008f9b1a9a42e1fac2b0
SHA512

820053864dd506fcf7c126f4a8df72ee6113ec07baaa2f440739782eb06e2768ee3dba5ba0c8e89d9c0dd03dffc51027e455f73601f41c07e02b19eef69f4aa9
SSDEEP

1536:pymLLU1F5kHIrIj0D6rhfd+lK3exiTCzxNtI4sZLi6UEbFEBFaW1EH6t6wfPP/Q:2F+ooxalK3exiTOijZLdUEbFlWPP/Q

Score

8^/10

discovery persistence upx

Malware Config

Signatures

Contacts a large (1172) 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
Changes its process name 1 IoCs

Processes:

description ioc pid

Changes the process name, possibly in an attempt to hide itself sshd 662
Modifies Watchdog functionality 1 TTPs 2 IoCs
Malware like Mirai modifies the Watchdog to prevent it restarting an infected system.

Impair Defenses
T1562

Processes:

description ioc

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

description ioc

File opened for reading /proc/net/tcp

resource	yara_rule
/usr/networks	patched_upx

description	ioc	pid
Changes the process name, possibly in an attempt to hide itself	sshd	662

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

resource	yara_rule
/usr/networks	upx

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

Modifies init.d 1 TTPs 4 IoCs

Adds/modifies system service, likely for persistence.

persistence

Boot or Logon Autostart Execution

T1547

Processes:

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

Writes file to system bin folder 1 TTPs 2 IoCs

Hijack Execution Flow
T1574

Processes:

description ioc

File opened for modification /bin/watchdog
File opened for modification /sbin/watchdog
Reads system network configuration 1 TTPs 2 IoCs
Uses contents of /proc filesystem to enumerate network settings.

System Network Configuration Discovery
T1016

Processes:

description ioc

File opened for reading /proc/net/raw
File opened for reading /proc/net/tcp

description	ioc
File opened for modification	/bin/watchdog
File opened for modification	/sbin/watchdog

description	ioc
File opened for reading	/proc/net/raw
File opened for reading	/proc/net/tcp

/tmp/9a111588a7db15b796421bd13a949cd4
/tmp/9a111588a7db15b796421bd13a949cd4
1⤵
PID:659

/bin/sh
sh -c "iptables -I INPUT -p tcp --destination-port 58000 -j DROP"
1⤵
PID:669
- /sbin/iptables
  iptables -I INPUT -p tcp --destination-port 58000 -j DROP
  2⤵
  PID:672

/bin/sh
sh -c "iptables -I OUTPUT -p tcp --source-port 58000 -j DROP"
1⤵
PID:679
- /sbin/iptables
  iptables -I OUTPUT -p tcp --source-port 58000 -j DROP
  2⤵
  PID:680

/bin/sh
sh -c "cfgtool set /mnt/jffs2/hw_ctree.xml InternetGatewayDevice.ManagementServer URL \"http://127.0.0.1\""
1⤵
PID:683

/bin/sh
sh -c "cfgtool set /mnt/jffs2/hw_ctree.xml InternetGatewayDevice.ManagementServer ConnectionRequestPassword \"acsMozi\""
1⤵
PID:684

/bin/sh
sh -c "iptables -I INPUT -p tcp --destination-port 35000 -j DROP"
1⤵
PID:685
- /sbin/iptables
  iptables -I INPUT -p tcp --destination-port 35000 -j DROP
  2⤵
  PID:687

/bin/sh
sh -c "iptables -I INPUT -p tcp --destination-port 50023 -j DROP"
1⤵
PID:688
- /sbin/iptables
  iptables -I INPUT -p tcp --destination-port 50023 -j DROP
  2⤵
  PID:689

/bin/sh
sh -c "iptables -I OUTPUT -p tcp --source-port 50023 -j DROP"
1⤵
PID:690
- /sbin/iptables
  iptables -I OUTPUT -p tcp --source-port 50023 -j DROP
  2⤵
  PID:692

/bin/sh
sh -c "iptables -I OUTPUT -p tcp --source-port 35000 -j DROP"
1⤵
PID:693
- /sbin/iptables
  iptables -I OUTPUT -p tcp --source-port 35000 -j DROP
  2⤵
  PID:694

/bin/sh
sh -c "iptables -I INPUT -p tcp --destination-port 7547 -j DROP"
1⤵
PID:695
- /sbin/iptables
  iptables -I INPUT -p tcp --destination-port 7547 -j DROP
  2⤵
  PID:696

/bin/sh
sh -c "iptables -I OUTPUT -p tcp --source-port 7547 -j DROP"
1⤵
PID:697
- /sbin/iptables
  iptables -I OUTPUT -p tcp --source-port 7547 -j DROP
  2⤵
  PID:698

/bin/sh
sh -c "iptables -I INPUT -p tcp --destination-port 48927 -j ACCEPT"
1⤵
PID:699
- /sbin/iptables
  iptables -I INPUT -p tcp --destination-port 48927 -j ACCEPT
  2⤵
  PID:700

/bin/sh
sh -c "iptables -I OUTPUT -p tcp --source-port 48927 -j ACCEPT"
1⤵
PID:701
- /sbin/iptables
  iptables -I OUTPUT -p tcp --source-port 48927 -j ACCEPT
  2⤵
  PID:702

/bin/sh
sh -c "iptables -I PREROUTING -t nat -p tcp --destination-port 48927 -j ACCEPT"
1⤵
PID:703
- /sbin/iptables
  iptables -I PREROUTING -t nat -p tcp --destination-port 48927 -j ACCEPT
  2⤵
  PID:704

/bin/sh
sh -c "iptables -I POSTROUTING -t nat -p tcp --source-port 48927 -j ACCEPT"
1⤵
PID:713
- /sbin/iptables
  iptables -I POSTROUTING -t nat -p tcp --source-port 48927 -j ACCEPT
  2⤵
  PID:714

/bin/sh
sh -c "iptables -I INPUT -p udp --destination-port 5060 -j ACCEPT"
1⤵
PID:764
- /sbin/iptables
  iptables -I INPUT -p udp --destination-port 5060 -j ACCEPT
  2⤵
  PID:765

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Hijack Execution Flow

1

T1574

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Hijack Execution Flow

1

T1574

Defense Evasion

Hijack Execution Flow

Impair Defenses

Credential Access

Discovery

Network Service Discovery

1

T1046

System Network Configuration Discovery

1

T1016

System Network Connections Discovery

1

T1049

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

/etc/rcS.d/S95baby.sh

Filesize
25B

MD5
1b3235ba10fc04836c941d3d27301956

SHA1
8909655763143702430b8c58b3ae3b04cfd3a29c

SHA256
01ba1fb41632594997a41d0c3a911ae5b3034d566ebb991ef76ad76e6f9e283a

SHA512
98bdb5c266222ccbd63b6f80c87e501c8033dc53b0513d300b8da50e39a207a0b69f8cd3ecc4a128dec340a1186779fedd1049c9b0a70e90d2cb3ae6ebfa4c4d

Download Submit
/usr/networks

Filesize
93KB

MD5
9a111588a7db15b796421bd13a949cd4

SHA1
034c8c51a58be11ca620ce3eb0d43d5a59275d2f

SHA256
e15e93db3ce3a8a22adb4b18e0e37b93f39c495e4a97008f9b1a9a42e1fac2b0

SHA512
820053864dd506fcf7c126f4a8df72ee6113ec07baaa2f440739782eb06e2768ee3dba5ba0c8e89d9c0dd03dffc51027e455f73601f41c07e02b19eef69f4aa9

Download Submit
memory/659-1-0x00008000-0x00060ce0-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads