Analysis
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max time kernel
0s -
max time network
153s -
platform
linux_armhf -
resource
debian9-armhf-en-20211208 -
resource tags
arch:armhfimage:debian9-armhf-en-20211208kernel:4.9.0-13-armmp-lpaelocale:en-usos:debian-9-armhfsystem -
submitted
20-01-2023 00:39
Static task
static1
Behavioral task
behavioral1
Sample
asd.zip
Resource
debian9-armhf-en-20211208
General
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Target
asd.zip
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Size
300KB
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MD5
eec5c6c219535fba3a0492ea8118b397
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SHA1
292559e94f1c04b7d0c65d4a01bbbc5dc1ff6f21
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SHA256
12013662c71da69de977c04cd7021f13a70cf7bed4ca6c82acbc100464d4b0ef
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SHA512
3482c8324a18302f0f37b6e23ed85f24fff9f50bb568d8fd7461bf57f077a7c592f7a88bb2e1c398699958946d87bb93ab744d13a0003f9b879c15e6471f7400
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SSDEEP
6144:T2s/gAWuboqsJ9xcJxspJBqQgTuaJZRhVabE5wKSDP99zBa77oNsKqqfPqOJ:T2s/bW+UmJqBxAuaPRhVabEDSDP99zBT
Malware Config
Signatures
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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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Modifies the Watchdog daemon 1 TTPs
Malware like Mirai modify the Watchdog to prevent it restarting an infected system.
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Writes file to system bin folder 1 TTPs 2 IoCs
Processes:
description ioc /sbin/watchdog /sbin/watchdog /bin/watchdog /bin/watchdog -
Modifies hosts file 1 IoCs
Adds to hosts file used for mapping hosts to IP addresses.
Processes:
description ioc /etc/hosts /etc/hosts -
Writes DNS configuration 1 TTPs 1 IoCs
Writes data to DNS resolver config file.
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Enumerates active TCP sockets 1 TTPs 1 IoCs
Gets active TCP sockets from /proc virtual filesystem.
Processes:
asd.zipdescription ioc Process /proc/net/tcp /proc/net/tcp asd.zip -
Processes:
description ioc /etc/init.d/S95baby.sh /etc/init.d/S95baby.sh -
Reads system routing table 1 TTPs 1 IoCs
Gets active network interfaces from /proc virtual filesystem.
Processes:
description ioc /proc/net/route /proc/net/route -
Reads system network configuration 1 TTPs 3 IoCs
Uses contents of /proc filesystem to enumerate network settings.
Processes:
asd.zipdescription ioc Process /proc/net/tcp /proc/net/tcp asd.zip /proc/net/raw /proc/net/raw asd.zip /proc/net/route /proc/net/route