12013662c71da69de977c04cd7021f13a70cf7bed4ca6c82acbc100464d4b0ef

Analysis

max time kernel
29s
max time network
59s
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
14-08-2024 00:24

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

sample
Size

300KB
MD5

eec5c6c219535fba3a0492ea8118b397
SHA1

292559e94f1c04b7d0c65d4a01bbbc5dc1ff6f21
SHA256

12013662c71da69de977c04cd7021f13a70cf7bed4ca6c82acbc100464d4b0ef
SHA512

3482c8324a18302f0f37b6e23ed85f24fff9f50bb568d8fd7461bf57f077a7c592f7a88bb2e1c398699958946d87bb93ab744d13a0003f9b879c15e6471f7400
SSDEEP

6144:T2s/gAWuboqsJ9xcJxspJBqQgTuaJZRhVabE5wKSDP99zBa77oNsKqqfPqOJ:T2s/bW+UmJqBxAuaPRhVabEDSDP99zBT

Score

8^/10

discovery persistence

Malware Config

Signatures

Contacts a large (1702) amount of remote hosts 1 TTPs
This may indicate a network scan to discover remotely running services.
discovery

Network Service Discovery
T1046
Modifies Watchdog functionality 1 TTPs 2 IoCs
Malware like Mirai modifies the Watchdog to prevent it restarting an infected system.

Impair Defenses
T1562

Processes:

sample

description ioc process

File opened for modification /dev/watchdog sample
File opened for modification /dev/misc/watchdog sample
Creates/modifies environment variables 1 TTPs 1 IoCs
Creating/modifying environment variables is a common persistence mechanism.
persistence

Hijack Execution Flow
T1574

Processes:

sample

description ioc process

File opened for modification /etc/profile.d/gawk.sh sample
Enumerates active TCP sockets 1 TTPs 1 IoCs
Gets active TCP sockets from /proc virtual filesystem.

System Network Connections Discovery
T1049

Processes:

sample

description ioc process

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

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

description	ioc	process
File opened for modification	/etc/profile.d/gawk.sh	sample

Modifies init.d 1 TTPs 4 IoCs

Adds/modifies system service, likely for persistence.

persistence

Boot or Logon Autostart Execution

T1547

Processes:

sample

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

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

System Network Configuration Discovery
T1016

Processes:

sample

description ioc process

File opened for reading /proc/net/route sample
Write file to user bin folder 1 TTPs 1 IoCs

Hijack Execution Flow
T1574

Processes:

sample

description ioc process

File opened for modification /usr/bin/gvmap.sh sample
Writes file to system bin folder 1 TTPs 2 IoCs

Hijack Execution Flow
T1574

Processes:

sample

description ioc process

File opened for modification /sbin/watchdog sample
File opened for modification /bin/watchdog sample
Modifies Bash startup script 1 TTPs 1 IoCs
persistence

Boot or Logon Autostart Execution
T1547

Processes:

sample

description ioc process

File opened for modification /etc/profile.d/gawk.sh sample
Changes its process name 1 IoCs

Processes:

description ioc pid

Changes the process name, possibly in an attempt to hide itself dropbear 709

description	ioc	process
File opened for reading	/proc/net/route	sample

description	ioc	process
File opened for modification	/usr/bin/gvmap.sh	sample

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

description	ioc	process
File opened for modification	/etc/profile.d/gawk.sh	sample

description	ioc	pid
Changes the process name, possibly in an attempt to hide itself	dropbear	709

Reads system network configuration 1 TTPs 3 IoCs

Uses contents of /proc filesystem to enumerate network settings.

System Network Configuration Discovery

T1016

Processes:

sample

description	ioc	process
File opened for reading	/proc/net/tcp	sample
File opened for reading	/proc/net/raw	sample
File opened for reading	/proc/net/route	sample

Reads runtime system information 64 IoCs

Reads data from /proc virtual filesystem.

Processes:

killallsample

description	ioc	process
File opened for reading	/proc/36	killall
File opened for reading	/proc/36/stat	killall
File opened for reading	/proc/143/cmdline	killall
File opened for reading	/proc/188/stat	killall
File opened for reading	/proc/247	killall
File opened for reading	/proc/35/stat	killall
File opened for reading	/proc/42/stat	killall
File opened for reading	/proc/26	killall
File opened for reading	/proc/1	killall
File opened for reading	/proc/3/stat	killall
File opened for reading	/proc/188	killall
File opened for reading	/proc/627	killall
File opened for reading	/proc/679/cmdline	killall
File opened for reading	/proc/9	killall
File opened for reading	/proc/19	killall
File opened for reading	/proc/198	killall
File opened for reading	/proc/221/stat	killall
File opened for reading	/proc/340/stat	killall
File opened for reading	/proc/683	killall
File opened for reading	/proc/mounts	sample
File opened for reading	/proc/15	killall
File opened for reading	/proc/698	killall
File opened for reading	/proc/662/stat	killall
File opened for reading	/proc/698/stat	killall
File opened for reading	/proc/7	killall
File opened for reading	/proc/8/stat	killall
File opened for reading	/proc/14	killall
File opened for reading	/proc/26/stat	killall
File opened for reading	/proc/31	killall
File opened for reading	/proc/57	killall
File opened for reading	/proc/338	killall
File opened for reading	/proc/stat	sample
File opened for reading	/proc/13	killall
File opened for reading	/proc/18/stat	killall
File opened for reading	/proc/143	killall
File opened for reading	/proc/16/stat	killall
File opened for reading	/proc/17/stat	killall
File opened for reading	/proc/56/stat	killall
File opened for reading	/proc/188/cmdline	killall
File opened for reading	/proc/221	killall
File opened for reading	/proc/360	killall
File opened for reading	/proc/646	killall
File opened for reading	/proc/647/stat	killall
File opened for reading	/proc/662	killall
File opened for reading	/proc/709	killall
File opened for reading	/proc/6	killall
File opened for reading	/proc/21/stat	killall
File opened for reading	/proc/45	killall
File opened for reading	/proc/340	killall
File opened for reading	/proc/631	killall
File opened for reading	/proc/710	killall
File opened for reading	/proc/1/stat	killall
File opened for reading	/proc/6/stat	killall
File opened for reading	/proc/30	killall
File opened for reading	/proc/33	killall
File opened for reading	/proc/317/stat	killall
File opened for reading	/proc/627/stat	killall
File opened for reading	/proc/665	killall
File opened for reading	/proc/30/stat	killall
File opened for reading	/proc/311	killall
File opened for reading	/proc/647	killall
File opened for reading	/proc/12/stat	killall
File opened for reading	/proc/34	killall
File opened for reading	/proc/142/stat	killall

Writes file to tmp directory 2 IoCs
Malware often drops required files in the /tmp directory.

Processes:

sample

description ioc process

File opened for modification /tmp/.config sample
File opened for modification /tmp/.ips sample

description	ioc	process
File opened for modification	/tmp/.config	sample
File opened for modification	/tmp/.ips	sample

/tmp/sample
/tmp/sample
1⤵
- Modifies Watchdog functionality
- Creates/modifies environment variables
- Enumerates active TCP sockets
- Modifies init.d
- Reads system routing table
- Write file to user bin folder
- Writes file to system bin folder
- Modifies Bash startup script
- Reads system network configuration
- Reads runtime system information
- Writes file to tmp directory
PID:705
- /bin/sh
  /bin/sh -c "killall -9 telnetd utelnetd scfgmgr"
  2⤵
  PID:710
- - /usr/bin/killall
    killall -9 telnetd utelnetd scfgmgr
    3⤵
    - Reads runtime system information
    PID:714
- /bin/sh
  /bin/sh -c "iptables -I INPUT -p tcp --destination-port 54195 -j ACCEPT"
  2⤵
  PID:767
- /bin/sh
  /bin/sh -c "iptables -I OUTPUT -p tcp --source-port 54195 -j ACCEPT"
  2⤵
  PID:768
- /bin/sh
  /bin/sh -c "iptables -I PREROUTING -t nat -p tcp --destination-port 54195 -j ACCEPT"
  2⤵
  PID:769
- /bin/sh
  /bin/sh -c "iptables -I POSTROUTING -t nat -p tcp --source-port 54195 -j ACCEPT"
  2⤵
  PID:770
- /bin/sh
  /bin/sh -c "iptables -I INPUT -p tcp --dport 54195 -j ACCEPT"
  2⤵
  PID:771
- /bin/sh
  /bin/sh -c "iptables -I OUTPUT -p tcp --sport 54195 -j ACCEPT"
  2⤵
  PID:772
- /bin/sh
  /bin/sh -c "iptables -I PREROUTING -t nat -p tcp --dport 54195 -j ACCEPT"
  2⤵
  PID:773
- /bin/sh
  /bin/sh -c "iptables -I POSTROUTING -t nat -p tcp --sport 54195 -j ACCEPT"
  2⤵
  PID:774
- /bin/sh
  /bin/sh -c "iptables -I INPUT -p tcp --destination-port 58000 -j DROP"
  2⤵
  PID:775
- /bin/sh
  /bin/sh -c "iptables -I OUTPUT -p tcp --source-port 58000 -j DROP"
  2⤵
  PID:776
- /bin/sh
  /bin/sh -c "iptables -I INPUT -p tcp --dport 58000 -j DROP"
  2⤵
  PID:777
- /bin/sh
  /bin/sh -c "iptables -I OUTPUT -p tcp --sport 58000 -j DROP"
  2⤵
  PID:778
- /bin/sh
  /bin/sh -c "cfgtool set /mnt/jffs2/hw_ctree.xml InternetGatewayDevice.ManagementServer URL \"http://127.0.0.1\""
  2⤵
  PID:779
- /bin/sh
  /bin/sh -c "cfgtool set /mnt/jffs2/hw_ctree.xml InternetGatewayDevice.ManagementServer ConnectionRequestPassword \"acsMozi\""
  2⤵
  PID:780
- /bin/sh
  /bin/sh -c "iptables -I INPUT -p tcp --destination-port 35000 -j DROP"
  2⤵
  PID:781
- /bin/sh
  /bin/sh -c "iptables -I INPUT -p tcp --destination-port 50023 -j DROP"
  2⤵
  PID:782
- /bin/sh
  /bin/sh -c "iptables -I OUTPUT -p tcp --source-port 50023 -j DROP"
  2⤵
  PID:783
- /bin/sh
  /bin/sh -c "iptables -I OUTPUT -p tcp --source-port 35000 -j DROP"
  2⤵
  PID:784
- /bin/sh
  /bin/sh -c "iptables -I INPUT -p tcp --destination-port 7547 -j DROP"
  2⤵
  PID:785
- /bin/sh
  /bin/sh -c "iptables -I OUTPUT -p tcp --source-port 7547 -j DROP"
  2⤵
  PID:786
- /bin/sh
  /bin/sh -c "iptables -I INPUT -p tcp --dport 35000 -j DROP"
  2⤵
  PID:787
- /bin/sh
  /bin/sh -c "iptables -I INPUT -p tcp --dport 50023 -j DROP"
  2⤵
  PID:788
- /bin/sh
  /bin/sh -c "iptables -I OUTPUT -p tcp --sport 50023 -j DROP"
  2⤵
  PID:789
- /bin/sh
  /bin/sh -c "iptables -I OUTPUT -p tcp --sport 35000 -j DROP"
  2⤵
  PID:790
- /bin/sh
  /bin/sh -c "iptables -I INPUT -p tcp --dport 7547 -j DROP"
  2⤵
  PID:791
- /bin/sh
  /bin/sh -c "iptables -I OUTPUT -p tcp --sport 7547 -j DROP"
  2⤵
  PID:792
- /bin/sh
  /bin/sh -c "iptables -I INPUT -p udp --destination-port 6881 -j ACCEPT"
  2⤵
  PID:793
- /bin/sh
  /bin/sh -c "iptables -I OUTPUT -p udp --source-port 6881 -j ACCEPT"
  2⤵
  PID:794
- /bin/sh
  /bin/sh -c "iptables -I PREROUTING -t nat -p udp --destination-port 6881 -j ACCEPT"
  2⤵
  PID:795
- /bin/sh
  /bin/sh -c "iptables -I POSTROUTING -t nat -p udp --source-port 6881 -j ACCEPT"
  2⤵
  PID:796
- /bin/sh
  /bin/sh -c "iptables -I INPUT -p udp --dport 6881 -j ACCEPT"
  2⤵
  PID:797
- /bin/sh
  /bin/sh -c "iptables -I OUTPUT -p udp --sport 6881 -j ACCEPT"
  2⤵
  PID:798
- /bin/sh
  /bin/sh -c "iptables -I PREROUTING -t nat -p udp --dport 6881 -j ACCEPT"
  2⤵
  PID:799
- /bin/sh
  /bin/sh -c "iptables -I POSTROUTING -t nat -p udp --sport 6881 -j ACCEPT"
  2⤵
  PID:800

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

Loading Replay Monitor...

Downloads

/etc/rcS.d/S95baby.sh

Filesize
25B

MD5
1b3235ba10fc04836c941d3d27301956

SHA1
8909655763143702430b8c58b3ae3b04cfd3a29c

SHA256
01ba1fb41632594997a41d0c3a911ae5b3034d566ebb991ef76ad76e6f9e283a

SHA512
98bdb5c266222ccbd63b6f80c87e501c8033dc53b0513d300b8da50e39a207a0b69f8cd3ecc4a128dec340a1186779fedd1049c9b0a70e90d2cb3ae6ebfa4c4d

Download Submit
/tmp/.config

Filesize
140B

MD5
457412db2275c971a2f32aef0c05f0ef

SHA1
81634d651b7bd25434966cb91dd5f1f1683ae363

SHA256
348a557ecef7585e315fa04bea4a179b715c795993ca331fbaf3677c79e0be5e

SHA512
4bf11f480c43a51666b8ddb335c59159c142299995ef5aad0cabe266e9652482f3032759150d6c467494ac10e7210976a935b61642cb214a438be016a7244a2c

Download Submit
/usr/networks

Filesize
300KB

MD5
eec5c6c219535fba3a0492ea8118b397

SHA1
292559e94f1c04b7d0c65d4a01bbbc5dc1ff6f21

SHA256
12013662c71da69de977c04cd7021f13a70cf7bed4ca6c82acbc100464d4b0ef

SHA512
3482c8324a18302f0f37b6e23ed85f24fff9f50bb568d8fd7461bf57f077a7c592f7a88bb2e1c398699958946d87bb93ab744d13a0003f9b879c15e6471f7400

Download Submit