Linux Analysis Report csB31kWt10

Overview

General Information

Sample Name: csB31kWt10
Analysis ID: 511554
MD5: df1ed6e73703ce09673aa4525975d129
SHA1: 4b3444321f460d0ea48f4e96eb0ea45b27b885a6
SHA256: 1d41b0a9c3b189c68bf219335a60f8156857fc6cef890e165e9ad2c48b15103a
Tags: 32elfmipsmirai
Infos:

Most interesting Screenshot:

Detection

Score: 48
Range: 0 - 100
Whitelisted: false

Signatures

Multi AV Scanner detection for submitted file
Sample has stripped symbol table
Uses the "uname" system call to query kernel version information (possible evasion)
Enumerates processes within the "proc" file system
Tries to connect to HTTP servers, but all servers are down (expired dropper behavior)
Detected TCP or UDP traffic on non-standard ports
Sample tries to kill a process (SIGKILL)

Classification

AV Detection:

barindex
Multi AV Scanner detection for submitted file
Source: csB31kWt10 Virustotal: Detection: 22% Perma Link
Source: csB31kWt10 ReversingLabs: Detection: 25%

Networking:

barindex
Tries to connect to HTTP servers, but all servers are down (expired dropper behavior)
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: global traffic TCP traffic: 192.168.2.23:43928 -> 91.189.91.42:443
Detected TCP or UDP traffic on non-standard ports
Source: global traffic TCP traffic: 192.168.2.23:56596 -> 45.95.169.120:455
Source: unknown Network traffic detected: HTTP traffic on port 43928 -> 443
Source: unknown Network traffic detected: HTTP traffic on port 42836 -> 443
Source: unknown TCP traffic detected without corresponding DNS query: 45.95.169.120
Source: unknown TCP traffic detected without corresponding DNS query: 45.95.169.120
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: 45.95.169.120
Source: unknown TCP traffic detected without corresponding DNS query: 45.95.169.120
Source: unknown TCP traffic detected without corresponding DNS query: 45.95.169.120
Source: unknown TCP traffic detected without corresponding DNS query: 45.95.169.120
Source: unknown TCP traffic detected without corresponding DNS query: 91.189.91.42
Source: unknown TCP traffic detected without corresponding DNS query: 45.95.169.120
Source: unknown TCP traffic detected without corresponding DNS query: 91.189.91.43
Source: unknown TCP traffic detected without corresponding DNS query: 121.66.166.226
Source: unknown TCP traffic detected without corresponding DNS query: 109.202.202.202
Source: unknown TCP traffic detected without corresponding DNS query: 45.95.169.120
Source: unknown TCP traffic detected without corresponding DNS query: 91.189.91.42
Source: unknown TCP traffic detected without corresponding DNS query: 45.95.169.120
Source: unknown TCP traffic detected without corresponding DNS query: 45.95.169.120
Source: unknown TCP traffic detected without corresponding DNS query: 45.95.169.120
Source: unknown TCP traffic detected without corresponding DNS query: 91.189.91.43
Source: unknown TCP traffic detected without corresponding DNS query: 45.95.169.120
Source: unknown TCP traffic detected without corresponding DNS query: 45.95.169.120
Source: unknown TCP traffic detected without corresponding DNS query: 45.95.169.120
Source: unknown TCP traffic detected without corresponding DNS query: 45.95.169.120

System Summary:

barindex
Sample has stripped symbol table
Source: ELF static info symbol of initial sample .symtab present: no
Sample tries to kill a process (SIGKILL)
Source: /tmp/csB31kWt10 (PID: 5246) SIGKILL sent: pid: 2256, result: successful Jump to behavior
Source: /tmp/csB31kWt10 (PID: 5246) SIGKILL sent: pid: 2258, result: no such process Jump to behavior
Source: /tmp/csB31kWt10 (PID: 5246) SIGKILL sent: pid: 5206, result: successful Jump to behavior
Source: /tmp/csB31kWt10 (PID: 5246) SIGKILL sent: pid: 5210, result: successful Jump to behavior
Source: /tmp/csB31kWt10 (PID: 5246) SIGKILL sent: pid: 5319, result: successful Jump to behavior
Source: /tmp/csB31kWt10 (PID: 5246) SIGKILL sent: pid: 5325, result: successful Jump to behavior
Source: classification engine Classification label: mal48.lin@0/4@0/0
Source: csB31kWt10 Joe Sandbox Cloud Basic: Detection: clean Score: 0 Perma Link

Persistence and Installation Behavior:

barindex
Enumerates processes within the "proc" file system
Source: /tmp/csB31kWt10 (PID: 5246) File opened: /proc/5147/cmdline Jump to behavior
Source: /tmp/csB31kWt10 (PID: 5246) File opened: /proc/5147/cmdline Jump to behavior
Source: /tmp/csB31kWt10 (PID: 5246) File opened: /proc/5147/status Jump to behavior
Source: /tmp/csB31kWt10 (PID: 5246) File opened: /proc/5147/status Jump to behavior
Source: /tmp/csB31kWt10 (PID: 5246) File opened: /proc/1582/cmdline Jump to behavior
Source: /tmp/csB31kWt10 (PID: 5246) File opened: /proc/1582/cmdline Jump to behavior
Source: /tmp/csB31kWt10 (PID: 5246) File opened: /proc/1582/status Jump to behavior
Source: /tmp/csB31kWt10 (PID: 5246) File opened: /proc/1582/status Jump to behavior
Source: /tmp/csB31kWt10 (PID: 5246) File opened: /proc/3088/cmdline Jump to behavior
Source: /tmp/csB31kWt10 (PID: 5246) File opened: /proc/3088/cmdline Jump to behavior
Source: /tmp/csB31kWt10 (PID: 5246) File opened: /proc/3088/status Jump to behavior
Source: /tmp/csB31kWt10 (PID: 5246) File opened: /proc/3088/status Jump to behavior
Source: /tmp/csB31kWt10 (PID: 5246) File opened: /proc/230/cmdline Jump to behavior
Source: /tmp/csB31kWt10 (PID: 5246) File opened: /proc/230/cmdline Jump to behavior
Source: /tmp/csB31kWt10 (PID: 5246) File opened: /proc/230/status Jump to behavior
Source: /tmp/csB31kWt10 (PID: 5246) File opened: /proc/230/status Jump to behavior
Source: /tmp/csB31kWt10 (PID: 5246) File opened: /proc/110/cmdline Jump to behavior
Source: /tmp/csB31kWt10 (PID: 5246) File opened: /proc/110/cmdline Jump to behavior
Source: /tmp/csB31kWt10 (PID: 5246) File opened: /proc/110/status Jump to behavior
Source: /tmp/csB31kWt10 (PID: 5246) File opened: /proc/110/status Jump to behavior
Source: /tmp/csB31kWt10 (PID: 5246) File opened: /proc/231/cmdline Jump to behavior
Source: /tmp/csB31kWt10 (PID: 5246) File opened: /proc/231/cmdline Jump to behavior
Source: /tmp/csB31kWt10 (PID: 5246) File opened: /proc/231/status Jump to behavior
Source: /tmp/csB31kWt10 (PID: 5246) File opened: /proc/231/status Jump to behavior
Source: /tmp/csB31kWt10 (PID: 5246) File opened: /proc/111/cmdline Jump to behavior
Source: /tmp/csB31kWt10 (PID: 5246) File opened: /proc/111/cmdline Jump to behavior
Source: /tmp/csB31kWt10 (PID: 5246) File opened: /proc/111/status Jump to behavior
Source: /tmp/csB31kWt10 (PID: 5246) File opened: /proc/111/status Jump to behavior
Source: /tmp/csB31kWt10 (PID: 5246) File opened: /proc/232/cmdline Jump to behavior
Source: /tmp/csB31kWt10 (PID: 5246) File opened: /proc/232/cmdline Jump to behavior
Source: /tmp/csB31kWt10 (PID: 5246) File opened: /proc/232/status Jump to behavior
Source: /tmp/csB31kWt10 (PID: 5246) File opened: /proc/232/status Jump to behavior
Source: /tmp/csB31kWt10 (PID: 5246) File opened: /proc/1579/cmdline Jump to behavior
Source: /tmp/csB31kWt10 (PID: 5246) File opened: /proc/1579/cmdline Jump to behavior
Source: /tmp/csB31kWt10 (PID: 5246) File opened: /proc/1579/status Jump to behavior
Source: /tmp/csB31kWt10 (PID: 5246) File opened: /proc/1579/status Jump to behavior
Source: /tmp/csB31kWt10 (PID: 5246) File opened: /proc/112/cmdline Jump to behavior
Source: /tmp/csB31kWt10 (PID: 5246) File opened: /proc/112/cmdline Jump to behavior
Source: /tmp/csB31kWt10 (PID: 5246) File opened: /proc/112/status Jump to behavior
Source: /tmp/csB31kWt10 (PID: 5246) File opened: /proc/112/status Jump to behavior
Source: /tmp/csB31kWt10 (PID: 5246) File opened: /proc/233/cmdline Jump to behavior
Source: /tmp/csB31kWt10 (PID: 5246) File opened: /proc/233/cmdline Jump to behavior
Source: /tmp/csB31kWt10 (PID: 5246) File opened: /proc/233/status Jump to behavior
Source: /tmp/csB31kWt10 (PID: 5246) File opened: /proc/233/status Jump to behavior
Source: /tmp/csB31kWt10 (PID: 5246) File opened: /proc/1699/cmdline Jump to behavior
Source: /tmp/csB31kWt10 (PID: 5246) File opened: /proc/1699/cmdline Jump to behavior
Source: /tmp/csB31kWt10 (PID: 5246) File opened: /proc/1699/status Jump to behavior
Source: /tmp/csB31kWt10 (PID: 5246) File opened: /proc/1699/status Jump to behavior
Source: /tmp/csB31kWt10 (PID: 5246) File opened: /proc/113/cmdline Jump to behavior
Source: /tmp/csB31kWt10 (PID: 5246) File opened: /proc/113/cmdline Jump to behavior
Source: /tmp/csB31kWt10 (PID: 5246) File opened: /proc/113/status Jump to behavior
Source: /tmp/csB31kWt10 (PID: 5246) File opened: /proc/113/status Jump to behavior
Source: /tmp/csB31kWt10 (PID: 5246) File opened: /proc/234/cmdline Jump to behavior
Source: /tmp/csB31kWt10 (PID: 5246) File opened: /proc/234/cmdline Jump to behavior
Source: /tmp/csB31kWt10 (PID: 5246) File opened: /proc/234/status Jump to behavior
Source: /tmp/csB31kWt10 (PID: 5246) File opened: /proc/234/status Jump to behavior
Source: /tmp/csB31kWt10 (PID: 5246) File opened: /proc/1335/cmdline Jump to behavior
Source: /tmp/csB31kWt10 (PID: 5246) File opened: /proc/1335/cmdline Jump to behavior
Source: /tmp/csB31kWt10 (PID: 5246) File opened: /proc/1335/status Jump to behavior
Source: /tmp/csB31kWt10 (PID: 5246) File opened: /proc/1335/status Jump to behavior
Source: /tmp/csB31kWt10 (PID: 5246) File opened: /proc/1698/cmdline Jump to behavior
Source: /tmp/csB31kWt10 (PID: 5246) File opened: /proc/1698/cmdline Jump to behavior
Source: /tmp/csB31kWt10 (PID: 5246) File opened: /proc/1698/status Jump to behavior
Source: /tmp/csB31kWt10 (PID: 5246) File opened: /proc/1698/status Jump to behavior
Source: /tmp/csB31kWt10 (PID: 5246) File opened: /proc/114/cmdline Jump to behavior
Source: /tmp/csB31kWt10 (PID: 5246) File opened: /proc/114/cmdline Jump to behavior
Source: /tmp/csB31kWt10 (PID: 5246) File opened: /proc/114/status Jump to behavior
Source: /tmp/csB31kWt10 (PID: 5246) File opened: /proc/114/status Jump to behavior
Source: /tmp/csB31kWt10 (PID: 5246) File opened: /proc/235/cmdline Jump to behavior
Source: /tmp/csB31kWt10 (PID: 5246) File opened: /proc/235/cmdline Jump to behavior
Source: /tmp/csB31kWt10 (PID: 5246) File opened: /proc/235/status Jump to behavior
Source: /tmp/csB31kWt10 (PID: 5246) File opened: /proc/235/status Jump to behavior
Source: /tmp/csB31kWt10 (PID: 5246) File opened: /proc/1334/cmdline Jump to behavior
Source: /tmp/csB31kWt10 (PID: 5246) File opened: /proc/1334/cmdline Jump to behavior
Source: /tmp/csB31kWt10 (PID: 5246) File opened: /proc/1334/status Jump to behavior
Source: /tmp/csB31kWt10 (PID: 5246) File opened: /proc/1334/status Jump to behavior
Source: /tmp/csB31kWt10 (PID: 5246) File opened: /proc/1576/cmdline Jump to behavior
Source: /tmp/csB31kWt10 (PID: 5246) File opened: /proc/1576/cmdline Jump to behavior
Source: /tmp/csB31kWt10 (PID: 5246) File opened: /proc/1576/status Jump to behavior
Source: /tmp/csB31kWt10 (PID: 5246) File opened: /proc/1576/status Jump to behavior
Source: /tmp/csB31kWt10 (PID: 5246) File opened: /proc/2302/cmdline Jump to behavior
Source: /tmp/csB31kWt10 (PID: 5246) File opened: /proc/2302/cmdline Jump to behavior
Source: /tmp/csB31kWt10 (PID: 5246) File opened: /proc/2302/status Jump to behavior
Source: /tmp/csB31kWt10 (PID: 5246) File opened: /proc/2302/status Jump to behavior
Source: /tmp/csB31kWt10 (PID: 5246) File opened: /proc/115/cmdline Jump to behavior
Source: /tmp/csB31kWt10 (PID: 5246) File opened: /proc/115/cmdline Jump to behavior
Source: /tmp/csB31kWt10 (PID: 5246) File opened: /proc/115/status Jump to behavior
Source: /tmp/csB31kWt10 (PID: 5246) File opened: /proc/115/status Jump to behavior
Source: /tmp/csB31kWt10 (PID: 5246) File opened: /proc/236/cmdline Jump to behavior
Source: /tmp/csB31kWt10 (PID: 5246) File opened: /proc/236/cmdline Jump to behavior
Source: /tmp/csB31kWt10 (PID: 5246) File opened: /proc/236/status Jump to behavior
Source: /tmp/csB31kWt10 (PID: 5246) File opened: /proc/236/status Jump to behavior
Source: /tmp/csB31kWt10 (PID: 5246) File opened: /proc/116/cmdline Jump to behavior
Source: /tmp/csB31kWt10 (PID: 5246) File opened: /proc/116/cmdline Jump to behavior
Source: /tmp/csB31kWt10 (PID: 5246) File opened: /proc/116/status Jump to behavior
Source: /tmp/csB31kWt10 (PID: 5246) File opened: /proc/116/status Jump to behavior
Source: /tmp/csB31kWt10 (PID: 5246) File opened: /proc/237/cmdline Jump to behavior
Source: /tmp/csB31kWt10 (PID: 5246) File opened: /proc/237/cmdline Jump to behavior
Source: /tmp/csB31kWt10 (PID: 5246) File opened: /proc/237/status Jump to behavior
Source: /tmp/csB31kWt10 (PID: 5246) File opened: /proc/237/status Jump to behavior
Source: /tmp/csB31kWt10 (PID: 5246) File opened: /proc/117/cmdline Jump to behavior
Source: /tmp/csB31kWt10 (PID: 5246) File opened: /proc/117/cmdline Jump to behavior
Source: /tmp/csB31kWt10 (PID: 5246) File opened: /proc/117/status Jump to behavior
Source: /tmp/csB31kWt10 (PID: 5246) File opened: /proc/117/status Jump to behavior
Source: /tmp/csB31kWt10 (PID: 5246) File opened: /proc/118/cmdline Jump to behavior
Source: /tmp/csB31kWt10 (PID: 5246) File opened: /proc/118/cmdline Jump to behavior
Source: /tmp/csB31kWt10 (PID: 5246) File opened: /proc/118/status Jump to behavior
Source: /tmp/csB31kWt10 (PID: 5246) File opened: /proc/118/status Jump to behavior

Malware Analysis System Evasion:

barindex
Uses the "uname" system call to query kernel version information (possible evasion)
Source: /tmp/csB31kWt10 (PID: 5241) Queries kernel information via 'uname': Jump to behavior
Source: csB31kWt10, 5241.1.00000000a991e760.0000000054a0b362.rw-.sdmp Binary or memory string: /etc/qemu-binfmt/mipsel
Source: csB31kWt10, 5241.1.0000000058f3b3c4.00000000a5779272.rw-.sdmp Binary or memory string: x86_64/usr/bin/qemu-mipsel/tmp/csB31kWt10SUDO_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/csB31kWt10
Source: csB31kWt10, 5241.1.00000000a991e760.0000000054a0b362.rw-.sdmp Binary or memory string: U!/etc/qemu-binfmt/mipsel
Source: csB31kWt10, 5241.1.0000000058f3b3c4.00000000a5779272.rw-.sdmp Binary or memory string: /usr/bin/qemu-mipsel
windows-stand
  • No. of IPs < 25%
  • 25% < No. of IPs < 50%
  • 50% < No. of IPs < 75%
  • 75% < No. of IPs

Contacted Public IPs

IP Domain Country Flag ASN ASN Name Malicious
121.66.166.226
 unknown Korea Republic of
3786 LGDACOMLGDACOMCorporationKR false
45.95.169.120
 unknown Croatia (LOCAL Name: Hrvatska)
42864 GIGANET-HUGigaNetInternetServiceProviderCoHU false
109.202.202.202
 unknown Switzerland
13030 INIT7CH false
91.189.91.43
 unknown United Kingdom
41231 CANONICAL-ASGB false
91.189.91.42
 unknown United Kingdom
41231 CANONICAL-ASGB false