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Linux Analysis Report r7jYRiiUEn

Overview

General Information

Sample Name:	r7jYRiiUEn
Analysis ID:	556567
MD5:	1ed6cac04ce64b9f50e82e6639d85a1e
SHA1:	d49f7392a81ff968f345c266a87a4435208688fe
SHA256:	747514b6ab4d7b4f72aead6a1c15832bb7a38e70f3125f5191a4b1584d4076ac
Tags:	32armelfmirai
Infos:

Detection

Score:	52
Range:	0 - 100
Whitelisted:	false

Signatures

Multi AV Scanner detection for submitted file

Sample tries to kill multiple processes (SIGKILL)

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

Executes the "rm" command used to delete files or directories

Sample listens on a socket

Sample tries to kill a process (SIGKILL)

Classification

Analysis Advice

Static ELF header machine description suggests that the sample might only run correctly on MIPS or ARM architectures

All HTTP servers contacted by the sample do not answer. Likely the sample is an old dropper which does no longer work

Static ELF header machine description suggests that the sample might not execute correctly on this machine

General Information

Joe Sandbox Version:	34.0.0 Boulder Opal
Analysis ID:	556567
Start date:	20.01.2022
Start time:	08:57:20
Joe Sandbox Product:	CloudBasic
Overall analysis duration:	0h 5m 28s
Hypervisor based Inspection enabled:	false
Report type:	full
Sample file name:	r7jYRiiUEn
Cookbook file name:	defaultlinuxfilecookbook.jbs
Analysis 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)
Analysis Mode:	default
Detection:	MAL
Classification:	mal52.spre.lin@0/1@0/0

Process Tree

system is lnxubuntu20

dash New Fork (PID: 5205, Parent: 4331)

cat (PID: 5205, Parent: 4331, MD5: 7e9d213e404ad3bb82e4ebb2e1f2c1b3) Arguments: cat /tmp/tmp.UGJagif37Z

dash New Fork (PID: 5206, Parent: 4331)

head (PID: 5206, Parent: 4331, MD5: fd96a67145172477dd57131396fc9608) Arguments: head -n 10

dash New Fork (PID: 5207, Parent: 4331)

tr (PID: 5207, Parent: 4331, MD5: fbd1402dd9f72d8ebfff00ce7c3a7bb5) Arguments: tr -d \\000-\\011\\013\\014\\016-\\037

dash New Fork (PID: 5208, Parent: 4331)

cut (PID: 5208, Parent: 4331, MD5: d8ed0ea8f22c0de0f8692d4d9f1759d3) Arguments: cut -c -80

dash New Fork (PID: 5209, Parent: 4331)

cat (PID: 5209, Parent: 4331, MD5: 7e9d213e404ad3bb82e4ebb2e1f2c1b3) Arguments: cat /tmp/tmp.UGJagif37Z

dash New Fork (PID: 5210, Parent: 4331)

head (PID: 5210, Parent: 4331, MD5: fd96a67145172477dd57131396fc9608) Arguments: head -n 10

dash New Fork (PID: 5211, Parent: 4331)

tr (PID: 5211, Parent: 4331, MD5: fbd1402dd9f72d8ebfff00ce7c3a7bb5) Arguments: tr -d \\000-\\011\\013\\014\\016-\\037

dash New Fork (PID: 5212, Parent: 4331)

cut (PID: 5212, Parent: 4331, MD5: d8ed0ea8f22c0de0f8692d4d9f1759d3) Arguments: cut -c -80

dash New Fork (PID: 5214, Parent: 4331)

rm (PID: 5214, Parent: 4331, MD5: aa2b5496fdbfd88e38791ab81f90b95b) Arguments: rm -f /tmp/tmp.UGJagif37Z /tmp/tmp.Bi7lGtHVI6 /tmp/tmp.YUzRYq0ngN

r7jYRiiUEn (PID: 5226, Parent: 5107, MD5: 5ebfcae4fe2471fcc5695c2394773ff1) Arguments: /tmp/r7jYRiiUEn

r7jYRiiUEn New Fork (PID: 5228, Parent: 5226)

r7jYRiiUEn New Fork (PID: 5229, Parent: 5226)

r7jYRiiUEn New Fork (PID: 5232, Parent: 5226)

r7jYRiiUEn New Fork (PID: 5234, Parent: 5232)

r7jYRiiUEn New Fork (PID: 5236, Parent: 5232)

cleanup

Yara Overview

No yara matches

Jbx Signature Overview

Click to jump to signature section

Show All Signature Results

AV Detection:

Multi AV Scanner detection for submitted file

Show sources

Source: r7jYRiiUEn	Virustotal: Detection: 47%			Perma Link
Source: r7jYRiiUEn	ReversingLabs: Detection: 58%

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
Source: global traffic	TCP traffic: 192.168.2.23:42836 -> 91.189.91.43:443

Source: global traffic

TCP traffic: 192.168.2.23:51412 -> 198.50.242.157:666

Source: /tmp/r7jYRiiUEn (PID: 5228)	Socket: 0.0.0.0::0	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5228)	Socket: 0.0.0.0::53413	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5228)	Socket: 0.0.0.0::80	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5228)	Socket: 0.0.0.0::37215	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	Socket: 0.0.0.0::0	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	Socket: 0.0.0.0::53413	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	Socket: 0.0.0.0::80	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	Socket: 0.0.0.0::37215	Jump to behavior

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: 109.202.202.202
Source: unknown	TCP traffic detected without corresponding DNS query: 198.50.242.157
Source: unknown	TCP traffic detected without corresponding DNS query: 198.50.242.157
Source: unknown	TCP traffic detected without corresponding DNS query: 198.50.242.157
Source: unknown	TCP traffic detected without corresponding DNS query: 198.50.242.157
Source: unknown	TCP traffic detected without corresponding DNS query: 198.50.242.157
Source: unknown	TCP traffic detected without corresponding DNS query: 198.50.242.157
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: 198.50.242.157
Source: unknown	TCP traffic detected without corresponding DNS query: 109.202.202.202
Source: unknown	TCP traffic detected without corresponding DNS query: 198.50.242.157
Source: unknown	TCP traffic detected without corresponding DNS query: 91.189.91.42
Source: unknown	TCP traffic detected without corresponding DNS query: 198.50.242.157
Source: unknown	TCP traffic detected without corresponding DNS query: 198.50.242.157
Source: unknown	TCP traffic detected without corresponding DNS query: 198.50.242.157
Source: unknown	TCP traffic detected without corresponding DNS query: 198.50.242.157
Source: unknown	TCP traffic detected without corresponding DNS query: 198.50.242.157
Source: unknown	TCP traffic detected without corresponding DNS query: 198.50.242.157
Source: unknown	TCP traffic detected without corresponding DNS query: 198.50.242.157
Source: unknown	TCP traffic detected without corresponding DNS query: 198.50.242.157

Source: motd-news.19.dr

String found in binary or memory: https://ubuntu.com/blog/microk8s-memory-optimisation

System Summary:

Sample tries to kill multiple processes (SIGKILL)

Show sources

Source: /tmp/r7jYRiiUEn (PID: 5228)	SIGKILL sent: pid: 936, result: successful	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	SIGKILL sent: pid: 936, result: successful	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	SIGKILL sent: pid: 5228, result: successful	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	SIGKILL sent: pid: 720, result: successful	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	SIGKILL sent: pid: 759, result: successful	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	SIGKILL sent: pid: 788, result: successful	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	SIGKILL sent: pid: 800, result: successful	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	SIGKILL sent: pid: 847, result: successful	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	SIGKILL sent: pid: 884, result: successful	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	SIGKILL sent: pid: 1334, result: successful	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	SIGKILL sent: pid: 1335, result: successful	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	SIGKILL sent: pid: 1860, result: successful	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	SIGKILL sent: pid: 1872, result: successful	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	SIGKILL sent: pid: 2096, result: successful	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	SIGKILL sent: pid: 2097, result: successful	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	SIGKILL sent: pid: 2102, result: successful	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	SIGKILL sent: pid: 2180, result: successful	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	SIGKILL sent: pid: 2208, result: successful	Jump to behavior

Source: ELF static info symbol of initial sample

.symtab present: no

Source: /tmp/r7jYRiiUEn (PID: 5228)	SIGKILL sent: pid: 936, result: successful	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	SIGKILL sent: pid: 936, result: successful	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	SIGKILL sent: pid: 5228, result: successful	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	SIGKILL sent: pid: 720, result: successful	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	SIGKILL sent: pid: 759, result: successful	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	SIGKILL sent: pid: 788, result: successful	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	SIGKILL sent: pid: 800, result: successful	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	SIGKILL sent: pid: 847, result: successful	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	SIGKILL sent: pid: 884, result: successful	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	SIGKILL sent: pid: 1334, result: successful	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	SIGKILL sent: pid: 1335, result: successful	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	SIGKILL sent: pid: 1860, result: successful	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	SIGKILL sent: pid: 1872, result: successful	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	SIGKILL sent: pid: 2096, result: successful	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	SIGKILL sent: pid: 2097, result: successful	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	SIGKILL sent: pid: 2102, result: successful	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	SIGKILL sent: pid: 2180, result: successful	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	SIGKILL sent: pid: 2208, result: successful	Jump to behavior

Source: classification engine

Classification label: mal52.spre.lin@0/1@0/0

Source: /tmp/r7jYRiiUEn (PID: 5234)	File opened: /proc/2033/fd	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	File opened: /proc/2033/exe	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	File opened: /proc/1582/fd	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	File opened: /proc/1582/exe	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	File opened: /proc/2275/fd	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	File opened: /proc/1612/fd	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	File opened: /proc/1612/exe	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	File opened: /proc/1579/fd	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	File opened: /proc/1579/exe	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	File opened: /proc/1699/fd	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	File opened: /proc/1699/exe	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	File opened: /proc/1335/fd	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	File opened: /proc/1335/exe	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	File opened: /proc/1698/fd	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	File opened: /proc/1698/exe	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	File opened: /proc/2028/fd	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	File opened: /proc/2028/exe	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	File opened: /proc/1334/fd	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	File opened: /proc/1334/exe	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	File opened: /proc/1576/fd	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	File opened: /proc/1576/exe	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	File opened: /proc/2302/fd	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	File opened: /proc/3236/fd	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	File opened: /proc/2025/fd	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	File opened: /proc/2025/exe	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	File opened: /proc/2146/fd	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	File opened: /proc/2146/exe	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	File opened: /proc/910/exe	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	File opened: /proc/912/fd	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	File opened: /proc/912/fd	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	File opened: /proc/912/exe	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	File opened: /proc/759/fd	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	File opened: /proc/759/fd	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	File opened: /proc/759/exe	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	File opened: /proc/517/exe	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	File opened: /proc/2307/fd	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	File opened: /proc/918/fd	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	File opened: /proc/918/fd	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	File opened: /proc/918/exe	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	File opened: /proc/5030/fd	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	File opened: /proc/1594/fd	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	File opened: /proc/1594/exe	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	File opened: /proc/2285/fd	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	File opened: /proc/2281/fd	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	File opened: /proc/1349/fd	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	File opened: /proc/1349/exe	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	File opened: /proc/1/fd	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	File opened: /proc/1/fd	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	File opened: /proc/1623/fd	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	File opened: /proc/1623/exe	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	File opened: /proc/761/fd	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	File opened: /proc/761/fd	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	File opened: /proc/761/exe	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	File opened: /proc/1622/fd	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	File opened: /proc/1622/exe	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	File opened: /proc/884/fd	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	File opened: /proc/884/fd	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	File opened: /proc/884/exe	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	File opened: /proc/1983/fd	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	File opened: /proc/1983/exe	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	File opened: /proc/2038/fd	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	File opened: /proc/2038/exe	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	File opened: /proc/1586/fd	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	File opened: /proc/1586/exe	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	File opened: /proc/1465/fd	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	File opened: /proc/1465/exe	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	File opened: /proc/1344/fd	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	File opened: /proc/1344/exe	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	File opened: /proc/1860/fd	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	File opened: /proc/1860/exe	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	File opened: /proc/1463/fd	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	File opened: /proc/1463/exe	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	File opened: /proc/2156/fd	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	File opened: /proc/2156/exe	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	File opened: /proc/800/fd	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	File opened: /proc/800/fd	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	File opened: /proc/800/exe	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	File opened: /proc/801/fd	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	File opened: /proc/801/fd	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	File opened: /proc/801/exe	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	File opened: /proc/1629/fd	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	File opened: /proc/1629/exe	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	File opened: /proc/1627/fd	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	File opened: /proc/1627/exe	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	File opened: /proc/1900/fd	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	File opened: /proc/1900/exe	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	File opened: /proc/491/fd	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	File opened: /proc/491/fd	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	File opened: /proc/491/exe	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	File opened: /proc/2294/fd	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	File opened: /proc/2050/fd	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	File opened: /proc/2050/exe	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	File opened: /proc/1877/fd	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	File opened: /proc/1877/exe	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	File opened: /proc/772/fd	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	File opened: /proc/772/fd	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	File opened: /proc/772/exe	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	File opened: /proc/1633/fd	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	File opened: /proc/1633/exe	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	File opened: /proc/1599/fd	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	File opened: /proc/1599/exe	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	File opened: /proc/1632/fd	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	File opened: /proc/1632/exe	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	File opened: /proc/1477/fd	Jump to behavior
Source: /tmp/r7jYRiiUEn (PID: 5234)	File opened: /proc/1477/exe	Jump to behavior

Source: /usr/bin/dash (PID: 5214)

Rm executable: /usr/bin/rm -> rm -f /tmp/tmp.UGJagif37Z /tmp/tmp.Bi7lGtHVI6 /tmp/tmp.YUzRYq0ngN

Jump to behavior

Source: /tmp/r7jYRiiUEn (PID: 5226)

Queries kernel information via 'uname':

Jump to behavior

Source: r7jYRiiUEn, 5226.1.0000000096a4e780.0000000014bf517a.rw-.sdmp, r7jYRiiUEn, 5228.1.0000000096a4e780.0000000014bf517a.rw-.sdmp, r7jYRiiUEn, 5229.1.0000000096a4e780.0000000014bf517a.rw-.sdmp, r7jYRiiUEn, 5236.1.0000000096a4e780.0000000014bf517a.rw-.sdmp	Binary or memory string: x86_64/usr/bin/qemu-arm/tmp/r7jYRiiUEnSUDO_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/r7jYRiiUEn
Source: r7jYRiiUEn, 5226.1.000000003a75b1d4.0000000000357306.rw-.sdmp, r7jYRiiUEn, 5228.1.000000003a75b1d4.0000000000357306.rw-.sdmp, r7jYRiiUEn, 5229.1.000000003a75b1d4.0000000000357306.rw-.sdmp, r7jYRiiUEn, 5236.1.000000003a75b1d4.0000000000357306.rw-.sdmp	Binary or memory string: ~U!/etc/qemu-binfmt/arm
Source: r7jYRiiUEn, 5226.1.000000003a75b1d4.0000000000357306.rw-.sdmp, r7jYRiiUEn, 5228.1.000000003a75b1d4.0000000000357306.rw-.sdmp, r7jYRiiUEn, 5229.1.000000003a75b1d4.0000000000357306.rw-.sdmp, r7jYRiiUEn, 5236.1.000000003a75b1d4.0000000000357306.rw-.sdmp	Binary or memory string: /etc/qemu-binfmt/arm
Source: r7jYRiiUEn, 5226.1.0000000096a4e780.0000000014bf517a.rw-.sdmp, r7jYRiiUEn, 5228.1.0000000096a4e780.0000000014bf517a.rw-.sdmp, r7jYRiiUEn, 5229.1.0000000096a4e780.0000000014bf517a.rw-.sdmp, r7jYRiiUEn, 5236.1.0000000096a4e780.0000000014bf517a.rw-.sdmp	Binary or memory string: /usr/bin/qemu-arm

Mitre Att&ck Matrix

Initial Access	Execution	Persistence	Privilege Escalation	Defense Evasion	Credential Access	Discovery	Lateral Movement	Collection	Exfiltration	Command and Control	Network Effects	Remote Service Effects	Impact
Valid Accounts	Windows Management Instrumentation	Path Interception	Path Interception	File Deletion1	OS Credential Dumping1	Security Software Discovery11	Remote Services	Data from Local System	Exfiltration Over Other Network Medium	Encrypted Channel1	Eavesdrop on Insecure Network Communication	Remotely Track Device Without Authorization	Modify System Partition
Default Accounts	Scheduled Task/Job	Boot or Logon Initialization Scripts	Boot or Logon Initialization Scripts	Rootkit	LSASS Memory	Application Window Discovery	Remote Desktop Protocol	Data from Removable Media	Exfiltration Over Bluetooth	Non-Standard Port1	Exploit SS7 to Redirect Phone Calls/SMS	Remotely Wipe Data Without Authorization	Device Lockout
Domain Accounts	At (Linux)	Logon Script (Windows)	Logon Script (Windows)	Obfuscated Files or Information	Security Account Manager	Query Registry	SMB/Windows Admin Shares	Data from Network Shared Drive	Automated Exfiltration	Application Layer Protocol1	Exploit SS7 to Track Device Location	Obtain Device Cloud Backups	Delete Device Data

Malware Configuration

No configs have been found

Behavior Graph

Hide Legend

Legend:

Process
Signature
Created File
DNS/IP Info
Is Dropped
Number of created Files
Is malicious
Internet

Antivirus, Machine Learning and Genetic Malware Detection

Initial Sample

Source	Detection	Scanner	Label	Link
r7jYRiiUEn	48%	Virustotal		Browse
r7jYRiiUEn	58%	ReversingLabs	Linux.Trojan.Mirai

Dropped Files

No Antivirus matches

Domains

No Antivirus matches

URLs

No Antivirus matches

Domains and IPs

Contacted Domains

No contacted domains info

URLs from Memory and Binaries

Name	Source	Malicious	Antivirus Detection	Reputation
https://ubuntu.com/blog/microk8s-memory-optimisation	motd-news.19.dr	false		high

Contacted IPs

No. of IPs < 25%
25% < No. of IPs < 50%
50% < No. of IPs < 75%
75% < No. of IPs

Public

IP	Domain	Country	ASN	ASN Name	Malicious
109.202.202.202	unknown	Switzerland	13030	INIT7CH	false
198.50.242.157	unknown	Canada	16276	OVHFR	false
91.189.91.43	unknown	United Kingdom	41231	CANONICAL-ASGB	false
91.189.91.42	unknown	United Kingdom	41231	CANONICAL-ASGB	false

Runtime Messages

Command:	/tmp/r7jYRiiUEn
Exit Code:	0
Exit Code Info:
Killed:	False
Standard Output:	DaddyL33T Infected Your Shit
Standard Error:

Joe Sandbox View / Context

IPs

Match	Associated Sample Name / URL	SHA 256	Detection	Link
109.202.202.202	t60zOeHqDv	Get hash	malicious	Browse
	Josho.x86	Get hash	malicious	Browse
	sRZz4JQ66K	Get hash	malicious	Browse
	tYjozYxSZq	Get hash	malicious	Browse
	a-r.m-4.ISIS	Get hash	malicious	Browse
	a-r.m-5.ISIS	Get hash	malicious	Browse
	a-r.m-6.ISIS	Get hash	malicious	Browse
	SecuriteInfo.com.ELF.Mirai.XS.15896.15279	Get hash	malicious	Browse
	a-r.m-7.ISIS	Get hash	malicious	Browse
	i-5.8-6.ISIS	Get hash	malicious	Browse
	m-i.p-s.ISIS	Get hash	malicious	Browse
	m-p.s-l.ISIS	Get hash	malicious	Browse
	s-h.4-.ISIS	Get hash	malicious	Browse
	x-3.2-.ISIS	Get hash	malicious	Browse
	UnHAnaAW.arm5	Get hash	malicious	Browse
	UnHAnaAW.arm6	Get hash	malicious	Browse
	x-8.6-.ISIS	Get hash	malicious	Browse
	tokyo.arm	Get hash	malicious	Browse
	tokyo.arm5	Get hash	malicious	Browse
	tokyo.arm6	Get hash	malicious	Browse
198.50.242.157	Josho.x86	Get hash	malicious	Browse
91.189.91.43	t60zOeHqDv	Get hash	malicious	Browse
	Josho.x86	Get hash	malicious	Browse
	sRZz4JQ66K	Get hash	malicious	Browse
	tYjozYxSZq	Get hash	malicious	Browse
	a-r.m-4.ISIS	Get hash	malicious	Browse
	a-r.m-5.ISIS	Get hash	malicious	Browse
	a-r.m-6.ISIS	Get hash	malicious	Browse
	SecuriteInfo.com.ELF.Mirai.XS.15896.15279	Get hash	malicious	Browse
	a-r.m-7.ISIS	Get hash	malicious	Browse
	i-5.8-6.ISIS	Get hash	malicious	Browse
	m-i.p-s.ISIS	Get hash	malicious	Browse
	m-p.s-l.ISIS	Get hash	malicious	Browse
	s-h.4-.ISIS	Get hash	malicious	Browse
	x-3.2-.ISIS	Get hash	malicious	Browse
	UnHAnaAW.arm5	Get hash	malicious	Browse
	UnHAnaAW.arm6	Get hash	malicious	Browse
	x-8.6-.ISIS	Get hash	malicious	Browse
	tokyo.arm	Get hash	malicious	Browse
	tokyo.arm5	Get hash	malicious	Browse
	tokyo.arm6	Get hash	malicious	Browse

Domains

No context

ASN

Match	Associated Sample Name / URL	SHA 256	Detection	Link	Context
INIT7CH	t60zOeHqDv	Get hash	malicious	Browse	109.202.202.202
	Josho.x86	Get hash	malicious	Browse	109.202.202.202
	sRZz4JQ66K	Get hash	malicious	Browse	109.202.202.202
	tYjozYxSZq	Get hash	malicious	Browse	109.202.202.202
	a-r.m-4.ISIS	Get hash	malicious	Browse	109.202.202.202
	a-r.m-5.ISIS	Get hash	malicious	Browse	109.202.202.202
	a-r.m-6.ISIS	Get hash	malicious	Browse	109.202.202.202
	SecuriteInfo.com.ELF.Mirai.XS.15896.15279	Get hash	malicious	Browse	109.202.202.202
	a-r.m-7.ISIS	Get hash	malicious	Browse	109.202.202.202
	i-5.8-6.ISIS	Get hash	malicious	Browse	109.202.202.202
	m-i.p-s.ISIS	Get hash	malicious	Browse	109.202.202.202
	m-p.s-l.ISIS	Get hash	malicious	Browse	109.202.202.202
	s-h.4-.ISIS	Get hash	malicious	Browse	109.202.202.202
	x-3.2-.ISIS	Get hash	malicious	Browse	109.202.202.202
	UnHAnaAW.arm5	Get hash	malicious	Browse	109.202.202.202
	UnHAnaAW.arm6	Get hash	malicious	Browse	109.202.202.202
	x-8.6-.ISIS	Get hash	malicious	Browse	109.202.202.202
	tokyo.arm	Get hash	malicious	Browse	109.202.202.202
	tokyo.arm5	Get hash	malicious	Browse	109.202.202.202
	tokyo.arm6	Get hash	malicious	Browse	109.202.202.202
OVHFR	Josho.x86	Get hash	malicious	Browse	198.50.242.157
	2k7GDMVeXP.dll	Get hash	malicious	Browse	54.38.242.185
	fcZINN0PI1.dll	Get hash	malicious	Browse	54.38.242.185
	B0OiokCj3u.dll	Get hash	malicious	Browse	54.38.242.185
	6LTeMOAy5Z.dll	Get hash	malicious	Browse	54.38.242.185
	qyRCSMzFKy.dll	Get hash	malicious	Browse	54.38.242.185
	NBC-INV-099834.exe	Get hash	malicious	Browse	37.187.180.144
	V5dn32NKTC.exe	Get hash	malicious	Browse	51.254.27.112
	uW6c5twHB3.dll	Get hash	malicious	Browse	54.38.242.185
	NNjq08PWTp.dll	Get hash	malicious	Browse	54.38.242.185
	75Up9knhHV.dll	Get hash	malicious	Browse	54.38.242.185
	J0KMiDX4BF.dll	Get hash	malicious	Browse	54.38.242.185
	DyN2QqaMfu.dll	Get hash	malicious	Browse	54.38.242.185
	v0d4L8cRB4.dll	Get hash	malicious	Browse	54.38.242.185
	mJEcAGljX5.dll	Get hash	malicious	Browse	54.38.242.185
	QEdDci1dHJ.dll	Get hash	malicious	Browse	54.38.242.185
	vHz2Or74EH.dll	Get hash	malicious	Browse	54.38.242.185
	TCukZcOa.dll	Get hash	malicious	Browse	54.38.242.185
	n1zBrIn67t.exe	Get hash	malicious	Browse	145.239.208.100
	0E144C258913A35001FD23C3413005C90E7BC35BE3BAF.exe	Get hash	malicious	Browse	51.91.13.105

JA3 Fingerprints

No context

Dropped Files

No context

Created / dropped Files

/var/cache/motd-news Download File
Process:	/usr/bin/cut
File Type:	ASCII text
Category:	dropped
Size (bytes):	191
Entropy (8bit):	4.515771857099866
Encrypted:	false
SSDEEP:	3:P2lnI+5MsqqzNLz+FRNScHUBfRau95++sZzR5woLB1Fh0VTGTl/X5kURn:OZ8uNLzDc0pR75+9Zz/woFmIT52URn
MD5:	DD514F892B5F93ED615D366E58AC58AF
SHA1:	BA75EDB3C2232CC260BC187F604DC8F25AA72C11
SHA-256:	F40D0DCE6E83DF74109FEF5E68E51CC255727783EEAE04C3E34677E23F7552CF
SHA-512:	9150BDE63F6C4850C5340D8877892B4D9BBF9EBDC98CDCF557A93FA304C1222CEE446418F5BE2ACCDBF38393778AFA5D4F3EDCB37A47BF57D3A4B2DEAD42A2D0
Malicious:	false
Reputation:	moderate, very likely benign file
Preview:	* Super-optimized for small spaces - read how we shrank the memory. footprint of MicroK8s to make it the smallest full K8s around... https://ubuntu.com/blog/microk8s-memory-optimisation.

Static File Info

General
File type:	ELF 32-bit LSB executable, ARM, version 1 (ARM), statically linked, stripped
Entropy (8bit):	5.909624831937935
TrID:	ELF Executable and Linkable format (generic) (4004/1) 100.00%
File name:	r7jYRiiUEn
File size:	48900
MD5:	1ed6cac04ce64b9f50e82e6639d85a1e
SHA1:	d49f7392a81ff968f345c266a87a4435208688fe
SHA256:	747514b6ab4d7b4f72aead6a1c15832bb7a38e70f3125f5191a4b1584d4076ac
SHA512:	02a68837324dcdc6f50c7c1ee3552cfe608208a225322c6e8f4944f8603f1bc08452f19dd02a175cc17bb27bc738a0a3f68476a911741fab3f1ec46c9aac2a8c
SSDEEP:	768:cS6POfCRi9bfR1YORAgKPjg0JN/mYBdohJXGb0TE5jQ4vwq+IPNOb7u2bqlsS:APOHJfvTM8YBn5jRvwFbqW
File Content Preview:	.ELF...a..........(.........4...t.......4. ...(.....................................................(...`...........Q.td..................................-...L."...B+..........0@-.\P...0....S.0...P@...0... ....R......0...0...........0... ....R..... 0....S

Static ELF Info

ELF header
Class:	ELF32
Data:	2's complement, little endian
Version:	1 (current)
Machine:	ARM
Version Number:	0x1
Type:	EXEC (Executable file)
OS/ABI:	ARM - ABI
ABI Version:	0
Entry Point Address:	0x8190
Flags:	0x202
ELF Header Size:	52
Program Header Offset:	52
Program Header Size:	32
Number of Program Headers:	3
Section Header Offset:	48500
Section Header Size:	40
Number of Section Headers:	10
Header String Table Index:	9

Sections

Name	Type	Address	Offset	Size	EntSize	Flags	Flags Description	Align
	NULL	0x0	0x0	0x0	0x0	0x0		0
.init	PROGBITS	0x8094	0x94	0x18	0x0	0x6	AX	4
.text	PROGBITS	0x80b0	0xb0	0xad40	0x0	0x6	AX	16
.fini	PROGBITS	0x12df0	0xadf0	0x14	0x0	0x6	AX	4
.rodata	PROGBITS	0x12e04	0xae04	0xd04	0x0	0x2	A	4
.ctors	PROGBITS	0x1bb0c	0xbb0c	0x8	0x0	0x3	WA	4
.dtors	PROGBITS	0x1bb14	0xbb14	0x8	0x0	0x3	WA	4
.data	PROGBITS	0x1bb20	0xbb20	0x214	0x0	0x3	WA	4
.bss	NOBITS	0x1bd34	0xbd34	0x238	0x0	0x3	WA	4
.shstrtab	STRTAB	0x0	0xbd34	0x3e	0x0	0x0		1

Program Segments

Type	Offset	Virtual Address	Physical Address	File Size	Memory Size	Entropy	Flags	Flags Description	Align	Section Mappings
LOAD	0x0	0x8000	0x8000	0xbb08	0xbb08	3.1190	0x5	R E	0x8000	.init .text .fini .rodata
LOAD	0xbb0c	0x1bb0c	0x1bb0c	0x228	0x460	1.6049	0x6	RW	0x8000	.ctors .dtors .data .bss
GNU_STACK	0x0	0x0	0x0	0x0	0x0	0.0000	0x7	RWE	0x4

Network Behavior

Network Port Distribution

TCP Packets

Timestamp	Source Port	Dest Port	Source IP	Dest IP
Jan 20, 2022 08:58:05.733897924 CET	42516	80	192.168.2.23	109.202.202.202
Jan 20, 2022 08:58:06.542356014 CET	51412	666	192.168.2.23	198.50.242.157
Jan 20, 2022 08:58:06.646383047 CET	666	51412	198.50.242.157	192.168.2.23
Jan 20, 2022 08:58:06.646466970 CET	51412	666	192.168.2.23	198.50.242.157
Jan 20, 2022 08:58:06.646775007 CET	51412	666	192.168.2.23	198.50.242.157
Jan 20, 2022 08:58:06.750659943 CET	666	51412	198.50.242.157	192.168.2.23
Jan 20, 2022 08:58:06.750755072 CET	51412	666	192.168.2.23	198.50.242.157
Jan 20, 2022 08:58:06.854737997 CET	666	51412	198.50.242.157	192.168.2.23
Jan 20, 2022 08:58:16.656754017 CET	51412	666	192.168.2.23	198.50.242.157
Jan 20, 2022 08:58:16.760716915 CET	666	51412	198.50.242.157	192.168.2.23
Jan 20, 2022 08:58:16.760783911 CET	666	51412	198.50.242.157	192.168.2.23
Jan 20, 2022 08:58:16.761133909 CET	51412	666	192.168.2.23	198.50.242.157
Jan 20, 2022 08:58:19.557334900 CET	43928	443	192.168.2.23	91.189.91.42
Jan 20, 2022 08:58:31.844700098 CET	42836	443	192.168.2.23	91.189.91.43
Jan 20, 2022 08:58:31.875442028 CET	666	51412	198.50.242.157	192.168.2.23
Jan 20, 2022 08:58:31.875602961 CET	51412	666	192.168.2.23	198.50.242.157
Jan 20, 2022 08:58:35.940525055 CET	42516	80	192.168.2.23	109.202.202.202
Jan 20, 2022 08:58:46.979392052 CET	666	51412	198.50.242.157	192.168.2.23
Jan 20, 2022 08:58:46.979576111 CET	51412	666	192.168.2.23	198.50.242.157
Jan 20, 2022 08:59:00.515325069 CET	43928	443	192.168.2.23	91.189.91.42
Jan 20, 2022 08:59:02.083705902 CET	666	51412	198.50.242.157	192.168.2.23
Jan 20, 2022 08:59:02.083872080 CET	51412	666	192.168.2.23	198.50.242.157
Jan 20, 2022 08:59:16.811497927 CET	51412	666	192.168.2.23	198.50.242.157
Jan 20, 2022 08:59:16.916068077 CET	666	51412	198.50.242.157	192.168.2.23
Jan 20, 2022 08:59:16.916235924 CET	51412	666	192.168.2.23	198.50.242.157
Jan 20, 2022 08:59:32.036247969 CET	666	51412	198.50.242.157	192.168.2.23
Jan 20, 2022 08:59:32.036418915 CET	51412	666	192.168.2.23	198.50.242.157
Jan 20, 2022 08:59:47.140258074 CET	666	51412	198.50.242.157	192.168.2.23
Jan 20, 2022 08:59:47.140362978 CET	51412	666	192.168.2.23	198.50.242.157
Jan 20, 2022 09:00:02.244261980 CET	666	51412	198.50.242.157	192.168.2.23
Jan 20, 2022 09:00:02.244440079 CET	51412	666	192.168.2.23	198.50.242.157
Jan 20, 2022 09:00:16.967714071 CET	51412	666	192.168.2.23	198.50.242.157
Jan 20, 2022 09:00:17.071757078 CET	666	51412	198.50.242.157	192.168.2.23
Jan 20, 2022 09:00:17.071944952 CET	51412	666	192.168.2.23	198.50.242.157

System Behavior

Analysis Process: dash PID: 5205 Parent PID: 4331

General

Start time:	08:58:01
Start date:	20/01/2022
Path:	/usr/bin/dash
Arguments:	n/a
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Chronological Activities

Analysis Process: cat PID: 5205 Parent PID: 4331

General

Start time:	08:58:01
Start date:	20/01/2022
Path:	/usr/bin/cat
Arguments:	cat /tmp/tmp.UGJagif37Z
File size:	43416 bytes
MD5 hash:	7e9d213e404ad3bb82e4ebb2e1f2c1b3

Chronological Activities

Analysis Process: dash PID: 5206 Parent PID: 4331

General

Start time:	08:58:01
Start date:	20/01/2022
Path:	/usr/bin/dash
Arguments:	n/a
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Chronological Activities

Analysis Process: head PID: 5206 Parent PID: 4331

General

Start time:	08:58:01
Start date:	20/01/2022
Path:	/usr/bin/head
Arguments:	head -n 10
File size:	47480 bytes
MD5 hash:	fd96a67145172477dd57131396fc9608

Chronological Activities

Analysis Process: dash PID: 5207 Parent PID: 4331

General

Start time:	08:58:01
Start date:	20/01/2022
Path:	/usr/bin/dash
Arguments:	n/a
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Chronological Activities

Analysis Process: tr PID: 5207 Parent PID: 4331

General

Start time:	08:58:01
Start date:	20/01/2022
Path:	/usr/bin/tr
Arguments:	tr -d \\000-\\011\\013\\014\\016-\\037
File size:	51544 bytes
MD5 hash:	fbd1402dd9f72d8ebfff00ce7c3a7bb5

Chronological Activities

Analysis Process: dash PID: 5208 Parent PID: 4331

General

Start time:	08:58:01
Start date:	20/01/2022
Path:	/usr/bin/dash
Arguments:	n/a
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Chronological Activities

Analysis Process: cut PID: 5208 Parent PID: 4331

General

Start time:	08:58:01
Start date:	20/01/2022
Path:	/usr/bin/cut
Arguments:	cut -c -80
File size:	47480 bytes
MD5 hash:	d8ed0ea8f22c0de0f8692d4d9f1759d3

Chronological Activities

Analysis Process: dash PID: 5209 Parent PID: 4331

General

Start time:	08:58:01
Start date:	20/01/2022
Path:	/usr/bin/dash
Arguments:	n/a
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Chronological Activities

Analysis Process: cat PID: 5209 Parent PID: 4331

General

Start time:	08:58:01
Start date:	20/01/2022
Path:	/usr/bin/cat
Arguments:	cat /tmp/tmp.UGJagif37Z
File size:	43416 bytes
MD5 hash:	7e9d213e404ad3bb82e4ebb2e1f2c1b3

Chronological Activities

Analysis Process: dash PID: 5210 Parent PID: 4331

General

Start time:	08:58:01
Start date:	20/01/2022
Path:	/usr/bin/dash
Arguments:	n/a
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Chronological Activities

Analysis Process: head PID: 5210 Parent PID: 4331

General

Start time:	08:58:01
Start date:	20/01/2022
Path:	/usr/bin/head
Arguments:	head -n 10
File size:	47480 bytes
MD5 hash:	fd96a67145172477dd57131396fc9608

Chronological Activities

Analysis Process: dash PID: 5211 Parent PID: 4331

General

Start time:	08:58:01
Start date:	20/01/2022
Path:	/usr/bin/dash
Arguments:	n/a
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Chronological Activities

Analysis Process: tr PID: 5211 Parent PID: 4331

General

Start time:	08:58:01
Start date:	20/01/2022
Path:	/usr/bin/tr
Arguments:	tr -d \\000-\\011\\013\\014\\016-\\037
File size:	51544 bytes
MD5 hash:	fbd1402dd9f72d8ebfff00ce7c3a7bb5

Chronological Activities

Analysis Process: dash PID: 5212 Parent PID: 4331

General

Start time:	08:58:01
Start date:	20/01/2022
Path:	/usr/bin/dash
Arguments:	n/a
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Chronological Activities

Analysis Process: cut PID: 5212 Parent PID: 4331

General

Start time:	08:58:01
Start date:	20/01/2022
Path:	/usr/bin/cut
Arguments:	cut -c -80
File size:	47480 bytes
MD5 hash:	d8ed0ea8f22c0de0f8692d4d9f1759d3

Chronological Activities

Analysis Process: dash PID: 5214 Parent PID: 4331

General

Start time:	08:58:01
Start date:	20/01/2022
Path:	/usr/bin/dash
Arguments:	n/a
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Chronological Activities

Analysis Process: rm PID: 5214 Parent PID: 4331

General

Start time:	08:58:01
Start date:	20/01/2022
Path:	/usr/bin/rm
Arguments:	rm -f /tmp/tmp.UGJagif37Z /tmp/tmp.Bi7lGtHVI6 /tmp/tmp.YUzRYq0ngN
File size:	72056 bytes
MD5 hash:	aa2b5496fdbfd88e38791ab81f90b95b

Chronological Activities

Analysis Process: r7jYRiiUEn PID: 5226 Parent PID: 5107

General

Start time:	08:58:04
Start date:	20/01/2022
Path:	/tmp/r7jYRiiUEn
Arguments:	/tmp/r7jYRiiUEn
File size:	4956856 bytes
MD5 hash:	5ebfcae4fe2471fcc5695c2394773ff1

Chronological Activities

Analysis Process: r7jYRiiUEn PID: 5228 Parent PID: 5226

General

Start time:	08:58:05
Start date:	20/01/2022
Path:	/tmp/r7jYRiiUEn
Arguments:	n/a
File size:	4956856 bytes
MD5 hash:	5ebfcae4fe2471fcc5695c2394773ff1

Chronological Activities

Analysis Process: r7jYRiiUEn PID: 5229 Parent PID: 5226

General

Start time:	08:58:05
Start date:	20/01/2022
Path:	/tmp/r7jYRiiUEn
Arguments:	n/a
File size:	4956856 bytes
MD5 hash:	5ebfcae4fe2471fcc5695c2394773ff1

Chronological Activities

Analysis Process: r7jYRiiUEn PID: 5232 Parent PID: 5226

General

Start time:	08:58:05
Start date:	20/01/2022
Path:	/tmp/r7jYRiiUEn
Arguments:	n/a
File size:	4956856 bytes
MD5 hash:	5ebfcae4fe2471fcc5695c2394773ff1

Chronological Activities

Analysis Process: r7jYRiiUEn PID: 5234 Parent PID: 5232

General

Start time:	08:58:05
Start date:	20/01/2022
Path:	/tmp/r7jYRiiUEn
Arguments:	n/a
File size:	4956856 bytes
MD5 hash:	5ebfcae4fe2471fcc5695c2394773ff1

Chronological Activities

Analysis Process: r7jYRiiUEn PID: 5236 Parent PID: 5232

General

Start time:	08:58:05
Start date:	20/01/2022
Path:	/tmp/r7jYRiiUEn
Arguments:	n/a
File size:	4956856 bytes
MD5 hash:	5ebfcae4fe2471fcc5695c2394773ff1

Description:	Adversaries may delete files left behind by the actions of their intrusion activity. Malware, tools, or other non-native files dropped or created on a system by an adversary may leave traces to indicate to what was done within a network and how. Removal of these files can occur during an intrusion, or as part of a post-intrusion process to minimize the adversary's footprint.
Tactics:	Defense Evasion
Data Sources:	Binary file metadata, File monitoring, Process command-line parameters
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may attempt to dump credentials to obtain account login and credential material, normally in the form of a hash or a clear text password, from the operating system and software. Credentials can then be used to perform Lateral Movement and access restricted information.
Tactics:	Credential Access
Data Sources:	API monitoring, PowerShell logs, Process command-line parameters, Process monitoring
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may attempt to get a listing of security software, configurations, defensive tools, and sensors that are installed on a system or in a cloud environment. This may include things such as firewall rules and anti-virus. Adversaries may use the information from Security Software Discovery during automated discovery to shape follow-on behaviors, including whether or not the adversary fully infects the target and/or attempts specific actions.
Tactics:	Discovery
Data Sources:	AWS CloudTrail logs, Azure activity logs, File monitoring, Process command-line parameters, Process monitoring, Stackdriver logs
Platforms:	AWS, Azure, Azure AD, GCP, Linux, macOS, Office 365, SaaS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may employ a known encryption algorithm to conceal command and control traffic rather than relying on any inherent protections provided by a communication protocol. Despite the use of a secure algorithm, these implementations may be vulnerable to reverse engineering if secret keys are encoded and/or generated within malware samples/configuration files.
Tactics:	Command and Control
Data Sources:	Malware reverse engineering, Netflow/Enclave netflow, Packet capture, Process monitoring, Process use of network, SSL/TLS inspection
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may communicate using a protocol and port paring that are typically not associated. For example, HTTPS over port 8088or port 587as opposed to the traditional port 443. Adversaries may make changes to the standard port used by a protocol to bypass filtering or muddle analysis/parsing of network data.
Tactics:	Command and Control
Data Sources:	Netflow/Enclave netflow, Packet capture, Process monitoring, Process use of network
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may communicate using application layer protocols to avoid detection/network filtering by blending in with existing traffic. Commands to the remote system, and often the results of those commands, will be embedded within the protocol traffic between the client and server.
Tactics:	Command and Control
Data Sources:	DNS records, Netflow/Enclave netflow, Network protocol analysis, Packet capture, Process monitoring, Process use of network
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Behavior Section

Behavior Chronological

Disassembly

Uncategorized

Graph

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Warning!

Linux Analysis Report r7jYRiiUEn

Overview

General Information

Detection

Signatures

Classification

Analysis Advice

General Information

Process Tree

Yara Overview

Jbx Signature Overview

AV Detection:

Networking:

System Summary:

Persistence and Installation Behavior:

Malware Analysis System Evasion:

Mitre Att&ck Matrix

Malware Configuration

Behavior Graph

Antivirus, Machine Learning and Genetic Malware Detection

Initial Sample

Dropped Files

Domains

URLs

Domains and IPs

Contacted Domains

URLs from Memory and Binaries

Contacted IPs

Public

Runtime Messages

Joe Sandbox View / Context

IPs

Domains

ASN

JA3 Fingerprints

Dropped Files

Created / dropped Files

Static File Info

General

Static ELF Info

ELF header

Sections

Program Segments

Network Behavior

Network Port Distribution

TCP Packets

System Behavior

Analysis Process: dash PID: 5205 Parent PID: 4331

General

Analysis Process: cat PID: 5205 Parent PID: 4331

General

Analysis Process: dash PID: 5206 Parent PID: 4331

General

Analysis Process: head PID: 5206 Parent PID: 4331

General

Analysis Process: dash PID: 5207 Parent PID: 4331

General

Analysis Process: tr PID: 5207 Parent PID: 4331

General

Analysis Process: dash PID: 5208 Parent PID: 4331

General

Analysis Process: cut PID: 5208 Parent PID: 4331

General

Analysis Process: dash PID: 5209 Parent PID: 4331

General

Analysis Process: cat PID: 5209 Parent PID: 4331

General

Analysis Process: dash PID: 5210 Parent PID: 4331

General

Analysis Process: head PID: 5210 Parent PID: 4331

General

Analysis Process: dash PID: 5211 Parent PID: 4331

General