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Linux Analysis Report
arm5.elf

Overview

General Information

Sample name:	arm5.elf
Analysis ID:	1586637
MD5:	81bdfcae2e518a8e9201cf6bc30c98f3
SHA1:	7b0c047487c78434888f597314955559395a4074
SHA256:	1eedc607dad9447de65c6cec87a5056061f93c4a9613bd1b2490e516850ebb40
Tags:	elfuser-abuse_ch
Infos:

Detection

Score:	56
Range:	0 - 100
Whitelisted:	false

Signatures

Antivirus / Scanner detection for submitted sample

Multi AV Scanner detection for submitted file

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:	41.0.0 Charoite
Analysis ID:	1586637
Start date and time:	2025-01-09 12:51:04 +01:00
Joe Sandbox product:	CloudBasic
Overall analysis duration:	0h 10m 36s
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:	arm5.elf
Detection:	MAL
Classification:	mal56.linELF@0/0@0/0
Cookbook Comments:	Analysis time extended to 480s due to sleep detection in submitted sample

Runtime Messages

Command:	/tmp/arm5.elf
PID:	6244
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

arm5.elf (PID: 6244, Parent: 6158, MD5: 5ebfcae4fe2471fcc5695c2394773ff1) Arguments: /tmp/arm5.elf

cleanup

Yara Signatures

⊘No yara matches

Suricata Signatures

⊘No Suricata rule has matched

Joe Sandbox Signatures

Click to jump to signature section

Show All Signature Results

AV Detection

Antivirus / Scanner detection for submitted sample

Source: arm5.elf

Avira: detected

Multi AV Scanner detection for submitted file

Source: arm5.elf

Virustotal: Detection: 60%

Perma Link

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	TCP traffic detected without corresponding DNS query: 91.189.91.43

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

Source: ELF static info symbol of initial sample

.symtab present: no

Source: classification engine

Classification label: mal56.linELF@0/0@0/0

Source: /tmp/arm5.elf (PID: 6244)

Queries kernel information via 'uname':

Jump to behavior

Source: arm5.elf, 6244.1.00007ffc07318000.00007ffc07339000.rw-.sdmp	Binary or memory string: >Nx86_64/usr/bin/qemu-arm/tmp/arm5.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/arm5.elf
Source: arm5.elf, 6244.1.00007ffc07318000.00007ffc07339000.rw-.sdmp	Binary or memory string: qemu: %s: %s
Source: arm5.elf, 6244.1.0000555947246000.0000555947374000.rw-.sdmp	Binary or memory string: %GYU!/etc/qemu-binfmt/arm
Source: arm5.elf, 6244.1.00007ffc07318000.00007ffc07339000.rw-.sdmp	Binary or memory string: leqemu: %s: %s
Source: arm5.elf, 6244.1.0000555947246000.0000555947374000.rw-.sdmp	Binary or memory string: `$GYUrg.qemu.gdb.arm.sys.regs">
Source: arm5.elf, 6244.1.0000555947246000.0000555947374000.rw-.sdmp	Binary or memory string: /etc/qemu-binfmt/arm
Source: arm5.elf, 6244.1.00007ffc07318000.00007ffc07339000.rw-.sdmp	Binary or memory string: /usr/bin/qemu-arm
Source: arm5.elf, 6244.1.0000555947246000.0000555947374000.rw-.sdmp	Binary or memory string: rg.qemu.gdb.arm.sys.regs">

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	Windows Management Instrumentation	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

Screenshots

Thumbnails

This section contains all screenshots as thumbnails, including those not shown in the slideshow.

Antivirus, Machine Learning and Genetic Malware Detection

Initial Sample

Source	Detection	Scanner	Label	Link
arm5.elf	60%	Virustotal		Browse
arm5.elf	100%	Avira	EXP/ELF.Mirai.H

Dropped Files

⊘No Antivirus matches

Domains

⊘No Antivirus matches

URLs

⊘No Antivirus matches

Domains and IPs

Contacted Domains

⊘No contacted domains info

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	x864433.elf	Get hash	malicious	Unknown	Browse
	sst.elf	Get hash	malicious	Gafgyt	Browse
	ssx.elf	Get hash	malicious	Gafgyt	Browse
	sss.elf	Get hash	malicious	Gafgyt	Browse
	12.elf	Get hash	malicious	Unknown	Browse
	Aqua.mpsl.elf	Get hash	malicious	Mirai	Browse
	2.elf	Get hash	malicious	Unknown	Browse
	main_ppc.elf	Get hash	malicious	Mirai	Browse
	a-r.m-5.Sakura.elf	Get hash	malicious	Gafgyt, Mirai	Browse
	ssl.elf	Get hash	malicious	Gafgyt	Browse
91.189.91.42	x864433.elf	Get hash	malicious	Unknown	Browse
	sst.elf	Get hash	malicious	Gafgyt	Browse
	ssx.elf	Get hash	malicious	Gafgyt	Browse
	sss.elf	Get hash	malicious	Gafgyt	Browse
	12.elf	Get hash	malicious	Unknown	Browse
	Aqua.mpsl.elf	Get hash	malicious	Mirai	Browse
	2.elf	Get hash	malicious	Unknown	Browse
	main_ppc.elf	Get hash	malicious	Mirai	Browse
	a-r.m-5.Sakura.elf	Get hash	malicious	Gafgyt, Mirai	Browse
	ssl.elf	Get hash	malicious	Gafgyt	Browse

Domains

⊘No context

ASNs

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link	Context
CANONICAL-ASGB	mips.elf	Get hash	malicious	Mirai	Browse	185.125.190.26
	x864433.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	sst.elf	Get hash	malicious	Gafgyt	Browse	91.189.91.42
	ssx.elf	Get hash	malicious	Gafgyt	Browse	91.189.91.42
	sss.elf	Get hash	malicious	Gafgyt	Browse	91.189.91.42
	12.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	Aqua.mpsl.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	2.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	main_ppc.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	a-r.m-5.Sakura.elf	Get hash	malicious	Gafgyt, Mirai	Browse	91.189.91.42
CANONICAL-ASGB	mips.elf	Get hash	malicious	Mirai	Browse	185.125.190.26
	x864433.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	sst.elf	Get hash	malicious	Gafgyt	Browse	91.189.91.42
	ssx.elf	Get hash	malicious	Gafgyt	Browse	91.189.91.42
	sss.elf	Get hash	malicious	Gafgyt	Browse	91.189.91.42
	12.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	Aqua.mpsl.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	2.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	main_ppc.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	a-r.m-5.Sakura.elf	Get hash	malicious	Gafgyt, Mirai	Browse	91.189.91.42
INIT7CH	x864433.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	sst.elf	Get hash	malicious	Gafgyt	Browse	109.202.202.202
	ssx.elf	Get hash	malicious	Gafgyt	Browse	109.202.202.202
	sss.elf	Get hash	malicious	Gafgyt	Browse	109.202.202.202
	12.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	Aqua.mpsl.elf	Get hash	malicious	Mirai	Browse	109.202.202.202
	2.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	main_ppc.elf	Get hash	malicious	Mirai	Browse	109.202.202.202
	a-r.m-5.Sakura.elf	Get hash	malicious	Gafgyt, Mirai	Browse	109.202.202.202
	ssl.elf	Get hash	malicious	Gafgyt	Browse	109.202.202.202

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, version 1 (ARM), dynamically linked, interpreter /lib/ld-uClibc.so.0, stripped
Entropy (8bit):	6.087591811051771
TrID:	ELF Executable and Linkable format (generic) (4004/1) 100.00%
File name:	arm5.elf
File size:	48'260 bytes
MD5:	81bdfcae2e518a8e9201cf6bc30c98f3
SHA1:	7b0c047487c78434888f597314955559395a4074
SHA256:	1eedc607dad9447de65c6cec87a5056061f93c4a9613bd1b2490e516850ebb40
SHA512:	c5f8fb3cf0922dc81bae9c46dd4943458d6b20fc623a0139ee87bc26139272e486c0685accafd31f67b66d29cb1382384b36cba40c98d65d036caeb890ccf84a
SSDEEP:	768:1TOD91Ug/ghNHSSxyhI7QgHZqx4F+ErnZJffui95U5SpwpYWaBESh3VeeB16Y03y:wKgYjHSS0ucxUrn7bOSpwq/uKqZ
TLSH:	A8232996BC91DA0ACAD023B6BD6F64EE330163DAC2DE3247DC145F2436CA90F0E67645
File Content Preview:	.ELF...a..........(.........4...........4. ...(.........4...4...4...................................................................................................................................................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:	ARM - ABI
ABI Version:	0
Entry Point Address:	0x8db4
Flags:	0x2
ELF Header Size:	52
Program Header Offset:	52
Program Header Size:	32
Number of Program Headers:	6
Section Header Offset:	47540
Section Header Size:	40
Number of Section Headers:	18
Header String Table Index:	17

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	0x1a4	0x4	0x2	A	3	0	4
.dynsym	DYNSYM	0x82ac	0x2ac	0x420	0x10	0x2	A	4	1	4
.dynstr	STRTAB	0x86cc	0x6cc	0x21a	0x0	0x2	A	0	0	1
.rel.plt	REL	0x88e8	0x8e8	0x180	0x8	0x2	A	3	7	4
.init	PROGBITS	0x8a68	0xa68	0x18	0x0	0x6	AX	0	0	4
.plt	PROGBITS	0x8a80	0xa80	0x254	0x4	0x6	AX	0	0	4
.text	PROGBITS	0x8cd4	0xcd4	0xa4f0	0x0	0x6	AX	0	0	4
.fini	PROGBITS	0x131c4	0xb1c4	0x14	0x0	0x6	AX	0	0	4
.rodata	PROGBITS	0x131d8	0xb1d8	0x5c8	0x0	0x2	A	0	0	4
.ctors	PROGBITS	0x1b7a4	0xb7a4	0x8	0x0	0x3	WA	0	0	4
.dtors	PROGBITS	0x1b7ac	0xb7ac	0x8	0x0	0x3	WA	0	0	4
.dynamic	DYNAMIC	0x1b7b8	0xb7b8	0x98	0x8	0x3	WA	4	0	4
.got	PROGBITS	0x1b850	0xb850	0xcc	0x4	0x3	WA	0	0	4
.data	PROGBITS	0x1b91c	0xb91c	0x24	0x0	0x3	WA	0	0	4
.bss	NOBITS	0x1b940	0xb940	0x314	0x0	0x3	WA	0	0	4
.shstrtab	STRTAB	0x0	0xb940	0x73	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	2.2629	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	0xb7a0	0xb7a0	6.1277	0x5	R E	0x8000		.interp .hash .dynsym .dynstr .rel.plt .init .plt .text .fini .rodata
LOAD	0xb7a4	0x1b7a4	0x1b7a4	0x19c	0x4b0	2.2782	0x6	RW	0x8000		.ctors .dtors .dynamic .got .data .bss
DYNAMIC	0xb7b8	0x1b7b8	0x1b7b8	0x98	0x98	1.9247	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	0x8a68	0xc
DT_FINI	value	0x131c4	0xd
DT_HASH	value	0x8108	0x4
DT_STRTAB	value	0x86cc	0x5
DT_SYMTAB	value	0x82ac	0x6
DT_STRSZ	bytes	538	0xa
DT_SYMENT	bytes	16	0xb
DT_DEBUG	value	0x0	0x15
DT_PLTGOT	value	0x1b850	0x3
DT_PLTRELSZ	bytes	384	0x2
DT_PLTREL	pltrel	DT_REL	0x14
DT_JMPREL	value	0x88e8	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
__aeabi_idiv0	.dynsym	0x13184	4	FUNC	<unknown>	DEFAULT	8
__aeabi_ldiv0	.dynsym	0x13184	4	FUNC	<unknown>	DEFAULT	8
__aeabi_uidiv	.dynsym	0x12ec4	0	FUNC	<unknown>	DEFAULT	8
__aeabi_uidivmod	.dynsym	0x12fbc	24	FUNC	<unknown>	DEFAULT	8
__bss_end__	.dynsym	0x1bc54	0	NOTYPE	<unknown>	DEFAULT	SHN_ABS
__bss_start	.dynsym	0x1b940	0	NOTYPE	<unknown>	DEFAULT	SHN_ABS
__bss_start__	.dynsym	0x1b940	0	NOTYPE	<unknown>	DEFAULT	SHN_ABS
__data_start	.dynsym	0x1b91c	0	NOTYPE	<unknown>	DEFAULT	17
__div0	.dynsym	0x13184	4	FUNC	<unknown>	DEFAULT	8
__end__	.dynsym	0x1bc54	0	NOTYPE	<unknown>	DEFAULT	SHN_ABS
__errno_location	.dynsym	0x8c50	32	FUNC	<unknown>	DEFAULT	SHN_UNDEF
__modsi3	.dynsym	0x130a0	228	FUNC	<unknown>	DEFAULT	8
__uClibc_main	.dynsym	0x8c08	488	FUNC	<unknown>	DEFAULT	SHN_UNDEF
__udivsi3	.dynsym	0x12ec4	248	FUNC	<unknown>	DEFAULT	8
__umodsi3	.dynsym	0x12fd4	204	FUNC	<unknown>	DEFAULT	8
_bss_end__	.dynsym	0x1bc54	0	NOTYPE	<unknown>	DEFAULT	SHN_ABS
_edata	.dynsym	0x1b940	0	NOTYPE	<unknown>	DEFAULT	SHN_ABS
_end	.dynsym	0x1bc54	0	NOTYPE	<unknown>	DEFAULT	SHN_ABS
_start	.dynsym	0x8db4	80	FUNC	<unknown>	DEFAULT	8
abort	.dynsym	0x8b78	352	FUNC	<unknown>	DEFAULT	SHN_UNDEF
bind	.dynsym	0x8b9c	44	FUNC	<unknown>	DEFAULT	SHN_UNDEF
calloc	.dynsym	0x8b84	88	FUNC	<unknown>	DEFAULT	SHN_UNDEF
clock	.dynsym	0x8c74	52	FUNC	<unknown>	DEFAULT	SHN_UNDEF
close	.dynsym	0x8ca4	44	FUNC	<unknown>	DEFAULT	SHN_UNDEF
closedir	.dynsym	0x8c8c	196	FUNC	<unknown>	DEFAULT	SHN_UNDEF
connect	.dynsym	0x8ab8	44	FUNC	<unknown>	DEFAULT	SHN_UNDEF
exit	.dynsym	0x8c5c	172	FUNC	<unknown>	DEFAULT	SHN_UNDEF
fcntl	.dynsym	0x8c98	116	FUNC	<unknown>	DEFAULT	SHN_UNDEF
fork	.dynsym	0x8bfc	44	FUNC	<unknown>	DEFAULT	SHN_UNDEF
free	.dynsym	0x8cb0	288	FUNC	<unknown>	DEFAULT	SHN_UNDEF
getpid	.dynsym	0x8ae8	44	FUNC	<unknown>	DEFAULT	SHN_UNDEF
getppid	.dynsym	0x8c20	44	FUNC	<unknown>	DEFAULT	SHN_UNDEF
getsockname	.dynsym	0x8cc8	44	FUNC	<unknown>	DEFAULT	SHN_UNDEF
getsockopt	.dynsym	0x8c44	48	FUNC	<unknown>	DEFAULT	SHN_UNDEF
inet_addr	.dynsym	0x8ba8	36	FUNC	<unknown>	DEFAULT	SHN_UNDEF
ioctl	.dynsym	0x8a94	80	FUNC	<unknown>	DEFAULT	SHN_UNDEF
kill	.dynsym	0x8b90	44	FUNC	<unknown>	DEFAULT	SHN_UNDEF
listen	.dynsym	0x8bf0	44	FUNC	<unknown>	DEFAULT	SHN_UNDEF
malloc	.dynsym	0x8b18	400	FUNC	<unknown>	DEFAULT	SHN_UNDEF
memcpy	.dynsym	0x8b00	4	FUNC	<unknown>	DEFAULT	SHN_UNDEF
memmove	.dynsym	0x8ad0	4	FUNC	<unknown>	DEFAULT	SHN_UNDEF
memset	.dynsym	0x8c14	156	FUNC	<unknown>	DEFAULT	SHN_UNDEF
open	.dynsym	0x8c68	92	FUNC	<unknown>	DEFAULT	SHN_UNDEF
opendir	.dynsym	0x8c38	264	FUNC	<unknown>	DEFAULT	SHN_UNDEF
prctl	.dynsym	0x8af4	48	FUNC	<unknown>	DEFAULT	SHN_UNDEF
printf	.dynsym	0x8aa0	76	FUNC	<unknown>	DEFAULT	SHN_UNDEF
read	.dynsym	0x8bcc	44	FUNC	<unknown>	DEFAULT	SHN_UNDEF
readdir	.dynsym	0x8b54	224	FUNC	<unknown>	DEFAULT	SHN_UNDEF
readlink	.dynsym	0x8b0c	44	FUNC	<unknown>	DEFAULT	SHN_UNDEF
realloc	.dynsym	0x8be4	312	FUNC	<unknown>	DEFAULT	SHN_UNDEF
recv	.dynsym	0x8aac	44	FUNC	<unknown>	DEFAULT	SHN_UNDEF
recvfrom	.dynsym	0x8b30	52	FUNC	<unknown>	DEFAULT	SHN_UNDEF
select	.dynsym	0x8b48	48	FUNC	<unknown>	DEFAULT	SHN_UNDEF
send	.dynsym	0x8b6c	44	FUNC	<unknown>	DEFAULT	SHN_UNDEF
sendto	.dynsym	0x8bd8	52	FUNC	<unknown>	DEFAULT	SHN_UNDEF
setsid	.dynsym	0x8c80	44	FUNC	<unknown>	DEFAULT	SHN_UNDEF
setsockopt	.dynsym	0x8bb4	48	FUNC	<unknown>	DEFAULT	SHN_UNDEF
sigaddset	.dynsym	0x8b60	48	FUNC	<unknown>	DEFAULT	SHN_UNDEF
sigemptyset	.dynsym	0x8ac4	24	FUNC	<unknown>	DEFAULT	SHN_UNDEF
signal	.dynsym	0x8bc0	200	FUNC	<unknown>	DEFAULT	SHN_UNDEF
sigprocmask	.dynsym	0x8cbc	84	FUNC	<unknown>	DEFAULT	SHN_UNDEF
sleep	.dynsym	0x8b24	420	FUNC	<unknown>	DEFAULT	SHN_UNDEF
socket	.dynsym	0x8b3c	44	FUNC	<unknown>	DEFAULT	SHN_UNDEF
time	.dynsym	0x8c2c	44	FUNC	<unknown>	DEFAULT	SHN_UNDEF
usleep	.dynsym	0x8adc	76	FUNC	<unknown>	DEFAULT	SHN_UNDEF

Network Behavior

Network Port Distribution

TCP Packets

Timestamp	Source Port	Dest Port	Source IP	Dest IP
Jan 9, 2025 12:51:58.416064978 CET	43928	443	192.168.2.23	91.189.91.42
Jan 9, 2025 12:52:03.791405916 CET	42836	443	192.168.2.23	91.189.91.43
Jan 9, 2025 12:52:05.071134090 CET	42516	80	192.168.2.23	109.202.202.202
Jan 9, 2025 12:52:19.661349058 CET	43928	443	192.168.2.23	91.189.91.42
Jan 9, 2025 12:52:29.899806023 CET	42836	443	192.168.2.23	91.189.91.43
Jan 9, 2025 12:52:36.042874098 CET	42516	80	192.168.2.23	109.202.202.202
Jan 9, 2025 12:53:00.615556002 CET	43928	443	192.168.2.23	91.189.91.42
Jan 9, 2025 12:53:21.093132973 CET	42836	443	192.168.2.23	91.189.91.43

System Behavior

Analysis Process: arm5.elf PID: 6244, Parent PID: 6158

General

Start time (UTC):	11:51:55
Start date (UTC):	09/01/2025
Path:	/tmp/arm5.elf
Arguments:	/tmp/arm5.elf
File size:	4956856 bytes
MD5 hash:	5ebfcae4fe2471fcc5695c2394773ff1

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

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Linux Analysis Report arm5.elf

Overview

General Information

Detection

Signatures

Classification

General Information

Runtime Messages

Process Tree

Yara Signatures

Suricata Signatures

Joe Sandbox Signatures

AV Detection

Networking

System Summary

Malware Analysis System Evasion

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

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: arm5.elf PID: 6244, Parent PID: 6158

General

Chronological Activities

Linux Analysis Report
arm5.elf