Linux Analysis Report
sshd.elf

ID:	1544166
Product:	CloudBasic
Start time:	23:37:04
Start date:	28.10.2024
Sample:	sshd.elf
Cookbook:	defaultlinuxfilecookbook.jbs
System description:	Ubuntu Linux 20.04 x64 (Kernel 5.4.0-72, Firefox 91.0, Evince Document Viewer 3.36.10, LibreOffice 6.4.7.2, OpenJDK 11.0.11)
Architecture:	LINUX
MD5:	6c90014bb325896ca099c20357e3dbf2
SHA1:	e4ea28377b07ccabaf3c86f3f76066093f874ecc
SHA256:	ce0b55de0c8b77195f9be74af55aef37e611bc802c0175f03a5a4f75104fc6b4
Filetype:	ELF Executable and Linkable format (generic) (4004/1) 100.00%

Name	Type	MD5	SHA1	SHA256

AV Detection

Source: sshd.elf

ReversingLabs: Detection: 21%

Networking

Source: global traffic	TCP traffic: 192.168.2.23:43928 -> 91.189.91.42:443
Source: global traffic	TCP traffic: 192.168.2.23:42836 -> 91.189.91.43:443
Source: global traffic	TCP traffic: 192.168.2.23:42516 -> 109.202.202.202:80

Source: unknown	TCP traffic detected without corresponding DNS query: 91.189.91.42
Source: unknown	TCP traffic detected without corresponding DNS query: 91.189.91.43
Source: unknown	TCP traffic detected without corresponding DNS query: 109.202.202.202
Source: unknown	TCP traffic detected without corresponding DNS query: 91.189.91.42
Source: unknown	TCP traffic detected without corresponding DNS query: 91.189.91.43
Source: unknown	TCP traffic detected without corresponding DNS query: 109.202.202.202
Source: unknown	TCP traffic detected without corresponding DNS query: 91.189.91.42

Source: sshd.elf	String found in binary or memory: http://www.openssl.org/support/faq.html
Source: sshd.elf	String found in binary or memory: http://www.openssl.org/support/faq.htmlmd_rand.c

Source: unknown	Network traffic detected: HTTP traffic on port 43928 -> 443
Source: unknown	Network traffic detected: HTTP traffic on port 42836 -> 443

System Summary

Source: Initial sample	Potential command found: ssh server is locked, please try again %dmin after !!!
Source: Initial sample	Potential command found: X11 forwarding
Source: Initial sample	Potential command found: X11 forwarding disabled in user configuration file.
Source: Initial sample	Potential command found: X11 forwarding disabled in server configuration file.
Source: Initial sample	Potential command found: X11 display already set.
Source: Initial sample	Potential command found: X11 connection requested.
Source: Initial sample	Potential command found: X11 connection from %.200s port %d
Source: Initial sample	Potential command found: X11 connection rejected because of wrong authentication.
Source: Initial sample	Potential command found: X11 rejected %d i%d/o%d
Source: Initial sample	Potential command found: X11 closed %d i%d/o%d
Source: Initial sample	Potential command found: X11 inet listener
Source: Initial sample	Potential command found: X11 connection uses different authentication protocol.
Source: Initial sample	Potential command found: X11 auth data does not match fake data.
Source: Initial sample	Potential command found: X11 fake_data_len %d != saved_data_len %d

Source: classification engine

Classification label: mal48.linELF@0/0@0/0

Malware Analysis System Evasion

Source: /tmp/sshd.elf (PID: 6231)

Queries kernel information via 'uname':

Jump to behavior

Source: sshd.elf, 6231.1.0000555f48e4f000.0000555f48f5b000.rw-.sdmp	Binary or memory string: H_Urg.qemu.gdb.arm.sys.regs">
Source: sshd.elf, 6231.1.00007ffee9ef2000.00007ffee9f13000.rw-.sdmp	Binary or memory string: <x86_64/usr/bin/qemu-arm/tmp/sshd.elfSUDO_USER=saturninoPATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/snap/binDISPLAY=:1.0XAUTHORITY=/run/user/1000/gdm/XauthoritySUDO_UID=1000TERM=xterm-256colorCOLORTERM=truecolorLOGNAME=rootUSER=rootLANG=en_US.UTF-8SUDO_COMMAND=/bin/bashHOME=/rootMAIL=/var/mail/rootSUDO_GID=1000SHELL=/bin/bash/tmp/sshd.elf
Source: sshd.elf, 6231.1.0000555f48e4f000.0000555f48f5b000.rw-.sdmp	Binary or memory string: /etc/qemu-binfmt/arm
Source: sshd.elf, 6231.1.00007ffee9ef2000.00007ffee9f13000.rw-.sdmp	Binary or memory string: /usr/bin/qemu-arm
Source: sshd.elf, 6231.1.0000555f48e4f000.0000555f48f5b000.rw-.sdmp	Binary or memory string: H_U!/etc/qemu-binfmt/arm
Source: sshd.elf, 6231.1.0000555f48e4f000.0000555f48f5b000.rw-.sdmp	Binary or memory string: rg.qemu.gdb.arm.sys.regs">