Analysis
-
max time kernel
150s -
max time network
155s -
platform
debian-9_armhf -
resource
debian9-armhf-20240611-en -
resource tags
arch:armhfimage:debian9-armhf-20240611-enkernel:4.9.0-13-armmp-lpaelocale:en-usos:debian-9-armhfsystem -
submitted
10-12-2024 18:32
Behavioral task
behavioral1
Sample
Josho.arm7.elf
Resource
debian9-armhf-20240611-en
General
-
Target
Josho.arm7.elf
-
Size
125KB
-
MD5
697af4fdb36ab70a86ab2694dd58ba57
-
SHA1
6af72a1f205a2dda8eec78626a45bac9a4df8cd0
-
SHA256
0fb69d16da153a3fb2cfc2314299986401098eba16c85f71c081716255b1df65
-
SHA512
3d81b93b8d53f6eeda486a43713cd5faee65c1eefeee77757215ad6aa5c31c54a246e1ebde0c36e628c81a9d33dce0d0255602daac824f0b52418050a0680af2
-
SSDEEP
3072:IZMu4C+u2dLhLRE90bYK5h9T96NOV+5/YtM/9gM/:eMu4C+u+RfbYK5hb6k+5/AM/9gM/
Malware Config
Signatures
-
Contacts a large (147092) amount of remote hosts 1 TTPs
This may indicate a network scan to discover remotely running services.
-
Creates a large amount of network flows 1 TTPs
This may indicate a network scan to discover remotely running services.
-
Modifies Watchdog functionality 1 TTPs 2 IoCs
Malware like Mirai modifies the Watchdog to prevent it restarting an infected system.
description ioc Process File opened for modification /dev/watchdog Josho.arm7.elf File opened for modification /dev/misc/watchdog Josho.arm7.elf -
Enumerates active TCP sockets 1 TTPs 1 IoCs
Gets active TCP sockets from /proc virtual filesystem.
description ioc Process File opened for reading /proc/net/tcp Josho.arm7.elf -
Changes its process name 1 IoCs
description ioc pid Process Changes the process name, possibly in an attempt to hide itself 2feimooo2c1dpbhbe1i 659 Josho.arm7.elf -
Reads system network configuration 1 TTPs 1 IoCs
Uses contents of /proc filesystem to enumerate network settings.
description ioc Process File opened for reading /proc/net/tcp Josho.arm7.elf -
description ioc Process File opened for reading /proc/648/fd Josho.arm7.elf File opened for reading /proc/277/fd Josho.arm7.elf File opened for reading /proc/278/fd Josho.arm7.elf File opened for reading /proc/309/fd Josho.arm7.elf File opened for reading /proc/318/fd Josho.arm7.elf File opened for reading /proc/395/fd Josho.arm7.elf File opened for reading /proc/1/fd Josho.arm7.elf File opened for reading /proc/291/fd Josho.arm7.elf File opened for reading /proc/292/fd Josho.arm7.elf File opened for reading /proc/662/fd Josho.arm7.elf File opened for reading /proc/691/fd Josho.arm7.elf File opened for reading /proc/663/exe Josho.arm7.elf File opened for reading /proc/288/fd Josho.arm7.elf File opened for reading /proc/656/fd Josho.arm7.elf File opened for reading /proc/146/fd Josho.arm7.elf File opened for reading /proc/175/fd Josho.arm7.elf File opened for reading /proc/411/fd Josho.arm7.elf File opened for reading /proc/612/fd Josho.arm7.elf File opened for reading /proc/330/fd Josho.arm7.elf File opened for reading /proc/456/fd Josho.arm7.elf File opened for reading /proc/649/fd Josho.arm7.elf File opened for reading /proc/673/fd Josho.arm7.elf File opened for reading /proc/660/fd Josho.arm7.elf File opened for reading /proc/668/fd Josho.arm7.elf File opened for reading /proc/783{1,1T Josho.arm7.elf File opened for reading /proc/660/exe Josho.arm7.elf File opened for reading /proc/222/fd Josho.arm7.elf File opened for reading /proc/307/fd Josho.arm7.elf File opened for reading /proc/665/fd Josho.arm7.elf File opened for reading /proc/457/fd Josho.arm7.elf File opened for reading /proc/663/fd Josho.arm7.elf