Analysis
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max time kernel
150s -
max time network
154s -
platform
linux_mipsel -
resource
debian9-mipsel-en-20211208 -
resource tags
arch:mipselimage:debian9-mipsel-en-20211208kernel:4.9.0-13-4kc-maltalocale:en-usos:debian-9-mipselsystem -
submitted
30-06-2023 12:48
Behavioral task
behavioral1
Sample
mozi.m
Resource
debian9-mipsel-en-20211208
General
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Target
mozi.m
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Size
134KB
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MD5
3849f30b51a5c49e8d1546960cc206c7
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SHA1
61c74136534b826059c63221a2373dc0613a47b7
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SHA256
f6c97b1e2ed02578ca1066c8235ba4f991e645f89012406c639dbccc6582eec8
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SHA512
43d79293d1fbf716111c27e50df95a0860a0d706079625fa2b8a6b57c5ee06fa7b5b6b8c0acae33714a2181686426728513c990534e44b6f03a05dde0629ab86
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SSDEEP
3072:biMYFJvw6Yh0b1gKobtCGCmCRlrisfrYm:fYFJvwe1gKCYVl2szN
Malware Config
Signatures
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Contacts a large (17996) amount of remote hosts 1 TTPs
This may indicate a network scan to discover remotely running services.
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Creates a large amount of network flows 1 TTPs
This may indicate a network scan to discover remotely running services.
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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:
shdescription ioc pid process Changes the process name, possibly in an attempt to hide itself dropbear 334 sh -
Modifies Watchdog functionality 1 TTPs 2 IoCs
Malware like Mirai modifies the Watchdog to prevent it restarting an infected system.
Processes:
description ioc File opened for modification /dev/watchdog File opened for modification /dev/misc/watchdog -
Processes:
resource yara_rule /usr/networks upx -
Enumerates active TCP sockets 1 TTPs 1 IoCs
Gets active TCP sockets from /proc virtual filesystem.
Processes:
mozi.mdescription ioc process File opened for reading /proc/net/tcp mozi.m -
Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
Processes:
flow ioc 10620 ipinfo.io 10625 ipinfo.io -
Processes:
description ioc File opened for modification /etc/init.d/S95baby.sh File opened for modification /etc/init.d/hwclock.sh -
Reads system routing table 1 TTPs 1 IoCs
Gets active network interfaces from /proc virtual filesystem.
Processes:
description ioc File opened for reading /proc/net/route -
Writes file to system bin folder 1 TTPs 2 IoCs
Processes:
description ioc File opened for modification /sbin/watchdog File opened for modification /bin/watchdog -
Reads system network configuration 1 TTPs 3 IoCs
Uses contents of /proc filesystem to enumerate network settings.
Processes:
mozi.mdescription ioc process File opened for reading /proc/net/tcp mozi.m File opened for reading /proc/net/raw mozi.m File opened for reading /proc/net/route -
Reads runtime system information 2 IoCs
Reads data from /proc virtual filesystem.
Processes:
mozi.mdescription ioc process File opened for reading /proc/self/exe mozi.m File opened for reading /proc/mounts -
Writes file to tmp directory 2 IoCs
Malware often drops required files in the /tmp directory.
Processes:
mozi.mdescription ioc process File opened for modification /tmp/.ips mozi.m File opened for modification /tmp/.config
Processes
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/tmp/mozi.m/tmp/mozi.m1⤵
- Enumerates active TCP sockets
- Reads system network configuration
- Reads runtime system information
- Writes file to tmp directory
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/bin/shsh -c "killall -9 telnetd utelnetd scfgmgr"1⤵
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/bin/shsh -c "iptables -I INPUT -p tcp --destination-port 47087 -j ACCEPT"1⤵
- Changes its process name
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/sbin/iptablesiptables -I INPUT -p tcp --destination-port 47087 -j ACCEPT2⤵
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/bin/shsh -c "iptables -I OUTPUT -p tcp --source-port 47087 -j ACCEPT"1⤵
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/sbin/iptablesiptables -I OUTPUT -p tcp --source-port 47087 -j ACCEPT2⤵
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/bin/shsh -c "iptables -I PREROUTING -t nat -p tcp --destination-port 47087 -j ACCEPT"1⤵
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/sbin/iptablesiptables -I PREROUTING -t nat -p tcp --destination-port 47087 -j ACCEPT2⤵
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/bin/shsh -c "iptables -I POSTROUTING -t nat -p tcp --source-port 47087 -j ACCEPT"1⤵
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/sbin/iptablesiptables -I POSTROUTING -t nat -p tcp --source-port 47087 -j ACCEPT2⤵
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/bin/shsh -c "iptables -I INPUT -p tcp --dport 47087 -j ACCEPT"1⤵
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/sbin/iptablesiptables -I INPUT -p tcp --dport 47087 -j ACCEPT2⤵
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/bin/shsh -c "iptables -I INPUT -p tcp --destination-port 22 -j DROP"1⤵
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/sbin/iptablesiptables -I INPUT -p tcp --destination-port 22 -j DROP2⤵
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/bin/shsh -c "iptables -I OUTPUT -p tcp --sport 47087 -j ACCEPT"1⤵
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/sbin/iptablesiptables -I OUTPUT -p tcp --sport 47087 -j ACCEPT2⤵
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/bin/shsh -c "iptables -I INPUT -p tcp --destination-port 23 -j DROP"1⤵
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/sbin/iptablesiptables -I INPUT -p tcp --destination-port 23 -j DROP2⤵
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/bin/shsh -c "iptables -I PREROUTING -t nat -p tcp --dport 47087 -j ACCEPT"1⤵
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/sbin/iptablesiptables -I PREROUTING -t nat -p tcp --dport 47087 -j ACCEPT2⤵
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/bin/shsh -c "iptables -I INPUT -p tcp --destination-port 2323 -j DROP"1⤵
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/sbin/iptablesiptables -I INPUT -p tcp --destination-port 2323 -j DROP2⤵
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/bin/shsh -c "iptables -I POSTROUTING -t nat -p tcp --sport 47087 -j ACCEPT"1⤵
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/sbin/iptablesiptables -I POSTROUTING -t nat -p tcp --sport 47087 -j ACCEPT2⤵
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/bin/shsh -c "iptables -I OUTPUT -p tcp --source-port 22 -j DROP"1⤵
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/sbin/iptablesiptables -I OUTPUT -p tcp --source-port 22 -j DROP2⤵
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/bin/shsh -c "iptables -I OUTPUT -p tcp --source-port 23 -j DROP"1⤵
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/sbin/iptablesiptables -I OUTPUT -p tcp --source-port 23 -j DROP2⤵
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/bin/shsh -c "iptables -I OUTPUT -p tcp --source-port 2323 -j DROP"1⤵
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/sbin/iptablesiptables -I OUTPUT -p tcp --source-port 2323 -j DROP2⤵
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/bin/shsh -c "iptables -I INPUT -p tcp --dport 22 -j DROP"1⤵
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/sbin/iptablesiptables -I INPUT -p tcp --dport 22 -j DROP2⤵
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/bin/shsh -c "iptables -I INPUT -p tcp --dport 23 -j DROP"1⤵
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/sbin/iptablesiptables -I INPUT -p tcp --dport 23 -j DROP2⤵
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/bin/shsh -c "iptables -I INPUT -p tcp --dport 2323 -j DROP"1⤵
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/sbin/iptablesiptables -I INPUT -p tcp --dport 2323 -j DROP2⤵
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/bin/shsh -c "iptables -I OUTPUT -p tcp --sport 22 -j DROP"1⤵
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/sbin/iptablesiptables -I OUTPUT -p tcp --sport 22 -j DROP2⤵
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/bin/shsh -c "iptables -I OUTPUT -p tcp --sport 23 -j DROP"1⤵
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/sbin/iptablesiptables -I OUTPUT -p tcp --sport 23 -j DROP2⤵
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/bin/shsh -c "iptables -I OUTPUT -p tcp --sport 2323 -j DROP"1⤵
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/sbin/iptablesiptables -I OUTPUT -p tcp --sport 2323 -j DROP2⤵
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/bin/shsh -c "iptables -I INPUT -p tcp --destination-port 58000 -j DROP"1⤵
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/sbin/iptablesiptables -I INPUT -p tcp --destination-port 58000 -j DROP2⤵
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/bin/shsh -c "iptables -I OUTPUT -p tcp --source-port 58000 -j DROP"1⤵
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/sbin/iptablesiptables -I OUTPUT -p tcp --source-port 58000 -j DROP2⤵
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/bin/shsh -c "iptables -I INPUT -p tcp --dport 58000 -j DROP"1⤵
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/sbin/iptablesiptables -I INPUT -p tcp --dport 58000 -j DROP2⤵
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/bin/shsh -c "iptables -I OUTPUT -p tcp --sport 58000 -j DROP"1⤵
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/sbin/iptablesiptables -I OUTPUT -p tcp --sport 58000 -j DROP2⤵
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/bin/shsh -c "cfgtool set /mnt/jffs2/hw_ctree.xml InternetGatewayDevice.ManagementServer URL \"http://127.0.0.1\""1⤵
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/bin/shsh -c "cfgtool set /mnt/jffs2/hw_ctree.xml InternetGatewayDevice.ManagementServer ConnectionRequestPassword \"acsMozi\""1⤵
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/bin/shsh -c "iptables -I INPUT -p tcp --destination-port 35000 -j DROP"1⤵
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/sbin/iptablesiptables -I INPUT -p tcp --destination-port 35000 -j DROP2⤵
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/bin/shsh -c "iptables -I INPUT -p tcp --destination-port 50023 -j DROP"1⤵
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/sbin/iptablesiptables -I INPUT -p tcp --destination-port 50023 -j DROP2⤵
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/bin/shsh -c "iptables -I OUTPUT -p tcp --source-port 50023 -j DROP"1⤵
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/sbin/iptablesiptables -I OUTPUT -p tcp --source-port 50023 -j DROP2⤵
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/bin/shsh -c "iptables -I OUTPUT -p tcp --source-port 35000 -j DROP"1⤵
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/sbin/iptablesiptables -I OUTPUT -p tcp --source-port 35000 -j DROP2⤵
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/bin/shsh -c "iptables -I INPUT -p tcp --destination-port 7547 -j DROP"1⤵
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/sbin/iptablesiptables -I INPUT -p tcp --destination-port 7547 -j DROP2⤵
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/bin/shsh -c "iptables -I OUTPUT -p tcp --source-port 7547 -j DROP"1⤵
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/sbin/iptablesiptables -I OUTPUT -p tcp --source-port 7547 -j DROP2⤵
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/bin/shsh -c "iptables -I INPUT -p tcp --dport 35000 -j DROP"1⤵
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/sbin/iptablesiptables -I INPUT -p tcp --dport 35000 -j DROP2⤵
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/bin/shsh -c "iptables -I INPUT -p tcp --dport 50023 -j DROP"1⤵
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/sbin/iptablesiptables -I INPUT -p tcp --dport 50023 -j DROP2⤵
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/bin/shsh -c "iptables -I OUTPUT -p tcp --sport 50023 -j DROP"1⤵
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/sbin/iptablesiptables -I OUTPUT -p tcp --sport 50023 -j DROP2⤵
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/bin/shsh -c "iptables -I OUTPUT -p tcp --sport 35000 -j DROP"1⤵
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/sbin/iptablesiptables -I OUTPUT -p tcp --sport 35000 -j DROP2⤵
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/bin/shsh -c "iptables -I INPUT -p tcp --dport 7547 -j DROP"1⤵
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/sbin/iptablesiptables -I INPUT -p tcp --dport 7547 -j DROP2⤵
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/bin/shsh -c "iptables -I OUTPUT -p tcp --sport 7547 -j DROP"1⤵
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/sbin/iptablesiptables -I OUTPUT -p tcp --sport 7547 -j DROP2⤵
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/bin/shsh -c "iptables -I INPUT -p udp --destination-port 20482 -j ACCEPT"1⤵
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/sbin/iptablesiptables -I INPUT -p udp --destination-port 20482 -j ACCEPT2⤵
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/bin/shsh -c "iptables -I OUTPUT -p udp --source-port 20482 -j ACCEPT"1⤵
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/sbin/iptablesiptables -I OUTPUT -p udp --source-port 20482 -j ACCEPT2⤵
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/bin/shsh -c "iptables -I PREROUTING -t nat -p udp --destination-port 20482 -j ACCEPT"1⤵
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/sbin/iptablesiptables -I PREROUTING -t nat -p udp --destination-port 20482 -j ACCEPT2⤵
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/bin/shsh -c "iptables -I POSTROUTING -t nat -p udp --source-port 20482 -j ACCEPT"1⤵
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/sbin/iptablesiptables -I POSTROUTING -t nat -p udp --source-port 20482 -j ACCEPT2⤵
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/bin/shsh -c "iptables -I INPUT -p udp --dport 20482 -j ACCEPT"1⤵
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/sbin/iptablesiptables -I INPUT -p udp --dport 20482 -j ACCEPT2⤵
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/bin/shsh -c "iptables -I OUTPUT -p udp --sport 20482 -j ACCEPT"1⤵
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/sbin/iptablesiptables -I OUTPUT -p udp --sport 20482 -j ACCEPT2⤵
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/bin/shsh -c "iptables -I PREROUTING -t nat -p udp --dport 20482 -j ACCEPT"1⤵
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/sbin/iptablesiptables -I PREROUTING -t nat -p udp --dport 20482 -j ACCEPT2⤵
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/bin/shsh -c "iptables -I POSTROUTING -t nat -p udp --sport 20482 -j ACCEPT"1⤵
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/sbin/iptablesiptables -I POSTROUTING -t nat -p udp --sport 20482 -j ACCEPT2⤵
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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/etc/rcS.d/S95baby.shFilesize
25B
MD51b3235ba10fc04836c941d3d27301956
SHA18909655763143702430b8c58b3ae3b04cfd3a29c
SHA25601ba1fb41632594997a41d0c3a911ae5b3034d566ebb991ef76ad76e6f9e283a
SHA51298bdb5c266222ccbd63b6f80c87e501c8033dc53b0513d300b8da50e39a207a0b69f8cd3ecc4a128dec340a1186779fedd1049c9b0a70e90d2cb3ae6ebfa4c4d
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/tmp/.configFilesize
140B
MD5457412db2275c971a2f32aef0c05f0ef
SHA181634d651b7bd25434966cb91dd5f1f1683ae363
SHA256348a557ecef7585e315fa04bea4a179b715c795993ca331fbaf3677c79e0be5e
SHA5124bf11f480c43a51666b8ddb335c59159c142299995ef5aad0cabe266e9652482f3032759150d6c467494ac10e7210976a935b61642cb214a438be016a7244a2c
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/usr/networksFilesize
134KB
MD53849f30b51a5c49e8d1546960cc206c7
SHA161c74136534b826059c63221a2373dc0613a47b7
SHA256f6c97b1e2ed02578ca1066c8235ba4f991e645f89012406c639dbccc6582eec8
SHA51243d79293d1fbf716111c27e50df95a0860a0d706079625fa2b8a6b57c5ee06fa7b5b6b8c0acae33714a2181686426728513c990534e44b6f03a05dde0629ab86
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memory/331-1-0x00400000-0x004c2f18-memory.dmp