Analysis
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max time kernel
150s -
max time network
151s -
platform
debian-9_armhf -
resource
debian9-armhf-20231221-en -
resource tags
arch:armhfimage:debian9-armhf-20231221-enkernel:4.9.0-13-armmp-lpaelocale:en-usos:debian-9-armhfsystem -
submitted
13-02-2024 03:19
Behavioral task
behavioral1
Sample
908bf09f36f8e791bc8b1722d0cb4628e309723d289adcae0d8d5fa7b4609a88.elf
Resource
debian9-armhf-20231221-en
General
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Target
908bf09f36f8e791bc8b1722d0cb4628e309723d289adcae0d8d5fa7b4609a88.elf
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Size
30KB
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MD5
f4f5d3a3222b8673f3f1a58b992cbbb2
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SHA1
10de659e01e85d33a301efd6f4a9c80973fd5496
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SHA256
908bf09f36f8e791bc8b1722d0cb4628e309723d289adcae0d8d5fa7b4609a88
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SHA512
a94f443b59a167b3a4f22e0ae431fd66a7f5bc74f4070158325e0d0ddda3925177378c8a9d6c3a5ac73e475c6613d336b2015835cbe76db83ae796150845be3f
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SSDEEP
768:w0XLTh64cGEzTgvxk4SkSqXY7EKs3UozD:TXLt643Y+v7YIHzD
Malware Config
Signatures
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Flushes firewall rules 4 IoCs
Flushes/ disables firewall rules inside the Linux kernel.
pid Process 681 iptables 692 iptables 696 iptables 697 iptables -
Modifies Watchdog functionality 1 TTPs 2 IoCs
Malware like Mirai modifies the Watchdog to prevent it restarting an infected system.
description ioc File opened for modification /dev/watchdog File opened for modification /dev/misc/watchdog -
Writes DNS configuration 1 TTPs 1 IoCs
Writes data to DNS resolver config file.
description ioc Process File opened for modification /etc/resolv.conf 908bf09f36f8e791bc8b1722d0cb4628e309723d289adcae0d8d5fa7b4609a88.elf -
Reads runtime system information 1 IoCs
Reads data from /proc virtual filesystem.
description ioc Process File opened for reading /proc/self/exe 908bf09f36f8e791bc8b1722d0cb4628e309723d289adcae0d8d5fa7b4609a88.elf
Processes
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/tmp/908bf09f36f8e791bc8b1722d0cb4628e309723d289adcae0d8d5fa7b4609a88.elf/tmp/908bf09f36f8e791bc8b1722d0cb4628e309723d289adcae0d8d5fa7b4609a88.elf1⤵
- Writes DNS configuration
- Reads runtime system information
PID:666
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/sbin/iptablesiptables -P INPUT ACCEPT1⤵PID:671
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/sbin/iptablesiptables -P FORWARD ACCEPT1⤵PID:677
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/sbin/iptablesiptables -P OUTPUT ACCEPT1⤵PID:679
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/sbin/iptablesiptables -t nat -F1⤵
- Flushes firewall rules
PID:681
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/sbin/iptablesiptables -t mangle -F1⤵
- Flushes firewall rules
PID:692
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/sbin/iptablesiptables -F1⤵
- Flushes firewall rules
PID:696
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/sbin/iptablesiptables -X1⤵
- Flushes firewall rules
PID:697