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Linux Analysis Report
na.elf

Overview

General Information

Sample name:	na.elf
Analysis ID:	1528728
MD5:	19dad4c81a132c2f56cfef4200247153
SHA1:	1bb562dd568d40ce861a7313135cb90970d2ccea
SHA256:	8d2630c56841b247afba8def549b14c745294340bbcd8a5f19b1a76157dfa9df
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

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 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:	1528728
Start date and time:	2024-10-08 09:59:26 +02:00
Joe Sandbox product:	CloudBasic
Overall analysis duration:	0h 10m 32s
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:	na.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/na.elf
PID:	6236
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

dash New Fork (PID: 6223, Parent: 4331)

rm (PID: 6223, Parent: 4331, MD5: aa2b5496fdbfd88e38791ab81f90b95b) Arguments: rm -f /tmp/tmp.QQuhjvfmRR /tmp/tmp.4ta8QmZA8k /tmp/tmp.bZC4RaebMV

dash New Fork (PID: 6224, Parent: 4331)

rm (PID: 6224, Parent: 4331, MD5: aa2b5496fdbfd88e38791ab81f90b95b) Arguments: rm -f /tmp/tmp.QQuhjvfmRR /tmp/tmp.4ta8QmZA8k /tmp/tmp.bZC4RaebMV

na.elf (PID: 6236, Parent: 6150, MD5: 5ebfcae4fe2471fcc5695c2394773ff1) Arguments: /tmp/na.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: na.elf

Avira: detected

Multi AV Scanner detection for submitted file

Source: na.elf	ReversingLabs: Detection: 55%
Source: na.elf	Virustotal: Detection: 66%			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	Network traffic detected: HTTP traffic on port 43928 -> 443
Source: unknown	Network traffic detected: HTTP traffic on port 42836 -> 443

Source: Initial sample	String containing 'busybox' found: /bin/busybox
Source: Initial sample	String containing 'busybox' found: //proc/self/exe/bin/busybox/proc/%d/etc/systmp.d/proc//exe%s/lib/systemd/usr/lib/systemd/systemd/usr/libexec/openssh/sftp-server/usr/lib/openssh/sftp-server/sys/system/dvr/main/usr/mnt/mtd/org/userfs/home/process/net_process/var/tmp/sonia/usr/sbin/usr/bin/mnt/gm/bin/var/Sofia/usr/sbin/sshd/usr/sbin/ntpd/usr/sbin/cupsd/usr/lib/apt/methods/http/usr/sbin/crond/usr/sbin/rsyslogd/usr/sbin/inetd/usr/sbin/dnsmasq/usr/bin/DVRServer/usr/bin/DVRShell/usr/bin/DVRControl/usr/bin/DVRRemoteAgent/usr/bin/DVRNetService/root/binw

Source: ELF static info symbol of initial sample

.symtab present: no

Source: classification engine

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

Source: /usr/bin/dash (PID: 6223)	Rm executable: /usr/bin/rm -> rm -f /tmp/tmp.QQuhjvfmRR /tmp/tmp.4ta8QmZA8k /tmp/tmp.bZC4RaebMV			Jump to behavior
Source: /usr/bin/dash (PID: 6224)	Rm executable: /usr/bin/rm -> rm -f /tmp/tmp.QQuhjvfmRR /tmp/tmp.4ta8QmZA8k /tmp/tmp.bZC4RaebMV			Jump to behavior

Source: /tmp/na.elf (PID: 6236)

Queries kernel information via 'uname':

Jump to behavior

Source: na.elf, 6236.1.00007ffe61eba000.00007ffe61edb000.rw-.sdmp	Binary or memory string: x86_64/usr/bin/qemu-arm/tmp/na.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/na.elf
Source: na.elf, 6236.1.000055fa3754a000.000055fa37678000.rw-.sdmp	Binary or memory string: U!/etc/qemu-binfmt/arm
Source: na.elf, 6236.1.00007ffe61eba000.00007ffe61edb000.rw-.sdmp	Binary or memory string: qemu: %s: %s
Source: na.elf, 6236.1.00007ffe61eba000.00007ffe61edb000.rw-.sdmp	Binary or memory string: leqemu: %s: %s
Source: na.elf, 6236.1.000055fa3754a000.000055fa37678000.rw-.sdmp	Binary or memory string: Urg.qemu.gdb.arm.sys.regs">
Source: na.elf, 6236.1.000055fa3754a000.000055fa37678000.rw-.sdmp	Binary or memory string: /etc/qemu-binfmt/arm
Source: na.elf, 6236.1.00007ffe61eba000.00007ffe61edb000.rw-.sdmp	Binary or memory string: /usr/bin/qemu-arm
Source: na.elf, 6236.1.000055fa3754a000.000055fa37678000.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	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

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
na.elf	55%	ReversingLabs	Linux.Backdoor.Mirai
na.elf	67%	Virustotal		Browse
na.elf	100%	Avira	LINUX/Mirai.bonb

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	na.elf	Get hash	malicious	Mirai	Browse
	na.elf	Get hash	malicious	Unknown	Browse
	na.elf	Get hash	malicious	Unknown	Browse
	na.elf	Get hash	malicious	Mirai	Browse
	na.elf	Get hash	malicious	Mirai	Browse
	na.elf	Get hash	malicious	Unknown	Browse
	r3M3VGE5AG.elf	Get hash	malicious	Unknown	Browse
	l8XbwyLvrK.elf	Get hash	malicious	Mirai, Gafgyt	Browse
	arm7.elf	Get hash	malicious	Mirai	Browse
	SecuriteInfo.com.ELF.Mirai-CVD.31968.3467.elf	Get hash	malicious	Unknown	Browse
91.189.91.42	na.elf	Get hash	malicious	Mirai	Browse
	na.elf	Get hash	malicious	Unknown	Browse
	na.elf	Get hash	malicious	Unknown	Browse
	na.elf	Get hash	malicious	Mirai	Browse
	na.elf	Get hash	malicious	Mirai	Browse
	na.elf	Get hash	malicious	Unknown	Browse
	r3M3VGE5AG.elf	Get hash	malicious	Unknown	Browse
	l8XbwyLvrK.elf	Get hash	malicious	Mirai, Gafgyt	Browse
	arm7.elf	Get hash	malicious	Mirai	Browse
	SecuriteInfo.com.ELF.Mirai-CVD.31968.3467.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	Mirai	Browse	91.189.91.42
	na.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	na.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	na.elf	Get hash	malicious	Mirai	Browse	185.125.190.26
	na.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	na.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	na.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	r3M3VGE5AG.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	l8XbwyLvrK.elf	Get hash	malicious	Mirai, Gafgyt	Browse	91.189.91.42
	arm7.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
CANONICAL-ASGB	na.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	na.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	na.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	na.elf	Get hash	malicious	Mirai	Browse	185.125.190.26
	na.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	na.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	na.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	r3M3VGE5AG.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	l8XbwyLvrK.elf	Get hash	malicious	Mirai, Gafgyt	Browse	91.189.91.42
	arm7.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
INIT7CH	na.elf	Get hash	malicious	Mirai	Browse	109.202.202.202
	na.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	na.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	na.elf	Get hash	malicious	Mirai	Browse	109.202.202.202
	na.elf	Get hash	malicious	Mirai	Browse	109.202.202.202
	na.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	r3M3VGE5AG.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	l8XbwyLvrK.elf	Get hash	malicious	Mirai, Gafgyt	Browse	109.202.202.202
	arm7.elf	Get hash	malicious	Mirai	Browse	109.202.202.202
	SecuriteInfo.com.ELF.Mirai-CVD.31968.3467.elf	Get hash	malicious	Unknown	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):	6.0542533440485045
TrID:	ELF Executable and Linkable format (generic) (4004/1) 100.00%
File name:	na.elf
File size:	25'908 bytes
MD5:	19dad4c81a132c2f56cfef4200247153
SHA1:	1bb562dd568d40ce861a7313135cb90970d2ccea
SHA256:	8d2630c56841b247afba8def549b14c745294340bbcd8a5f19b1a76157dfa9df
SHA512:	f02b0c325899f911af3ec747ca094f685ca157a767b2d7ff5e04b4438e48a1ed3aa41f0159af168baec1e42b2b028da44b7bcbb5c435ae04a0065dd7e1f6dd29
SSDEEP:	384:g2+41xBpl6ss8caHgEAT3N6OKDbLxCkv82Z75hK0BKl3iYph5ToWE6p62hbYiktt:g0xtxzcaTAT9EUk9hKhxph5ToW/Zkv
TLSH:	27C2F682E5D2992BC5D0623A7A5F155C3321B3D8D2CF3707E9247B20AB4E62E4E73A50
File Content Preview:	.ELF...a..........(.....0...4...db......4. ...(.........4...4...4...................................................................._..._...............`...`...`......p................`...`...`..................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:	0x9030
Flags:	0x2
ELF Header Size:	52
Program Header Offset:	52
Program Header Size:	32
Number of Program Headers:	6
Section Header Offset:	25188
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	0x264	0x4	0x2	A	3	0	4
.dynsym	DYNSYM	0x836c	0x36c	0x540	0x10	0x2	A	4	1	4
.dynstr	STRTAB	0x88ac	0x8ac	0x279	0x0	0x2	A	0	0	1
.rel.plt	REL	0x8b28	0xb28	0x198	0x8	0x2	A	3	7	4
.init	PROGBITS	0x8cc0	0xcc0	0x18	0x0	0x6	AX	0	0	4
.plt	PROGBITS	0x8cd8	0xcd8	0x278	0x4	0x6	AX	0	0	4
.text	PROGBITS	0x8f50	0xf50	0x470c	0x0	0x6	AX	0	0	4
.fini	PROGBITS	0xd65c	0x565c	0x14	0x0	0x6	AX	0	0	4
.rodata	PROGBITS	0xd670	0x5670	0x978	0x1	0x32	AMS	0	0	4
.ctors	PROGBITS	0x16000	0x6000	0x8	0x0	0x3	WA	0	0	4
.dtors	PROGBITS	0x16008	0x6008	0x8	0x0	0x3	WA	0	0	4
.dynamic	DYNAMIC	0x16014	0x6014	0x98	0x8	0x3	WA	4	0	4
.got	PROGBITS	0x160ac	0x60ac	0xd8	0x4	0x3	WA	0	0	4
.data	PROGBITS	0x16184	0x6184	0x6c	0x0	0x3	WA	0	0	4
.bss	NOBITS	0x161f0	0x61f0	0x280	0x0	0x3	WA	0	0	4
.shstrtab	STRTAB	0x0	0x61f0	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	2.1638	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	0x5fe8	0x5fe8	6.1470	0x5	R E	0x8000		.interp .hash .dynsym .dynstr .rel.plt .init .plt .text .fini .rodata
LOAD	0x6000	0x16000	0x16000	0x1f0	0x470	2.5452	0x6	RW	0x8000		.ctors .dtors .dynamic .got .data .bss
DYNAMIC	0x6014	0x16014	0x16014	0x98	0x98	1.8806	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	0x8cc0	0xc
DT_FINI	value	0xd65c	0xd
DT_HASH	value	0x8108	0x4
DT_STRTAB	value	0x88ac	0x5
DT_SYMTAB	value	0x836c	0x6
DT_STRSZ	bytes	633	0xa
DT_SYMENT	bytes	16	0xb
DT_DEBUG	value	0x0	0x15
DT_PLTGOT	value	0x160ac	0x3
DT_PLTRELSZ	bytes	408	0x2
DT_PLTREL	pltrel	DT_REL	0x14
DT_JMPREL	value	0x8b28	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	0xd61c	4	FUNC	<unknown>	DEFAULT	8
__aeabi_ldiv0	.dynsym	0xd61c	4	FUNC	<unknown>	DEFAULT	8
__aeabi_uidiv	.dynsym	0xd35c	0	FUNC	<unknown>	DEFAULT	8
__aeabi_uidivmod	.dynsym	0xd454	24	FUNC	<unknown>	DEFAULT	8
__bss_end__	.dynsym	0x16470	0	NOTYPE	<unknown>	DEFAULT	SHN_ABS
__bss_start	.dynsym	0x161f0	0	NOTYPE	<unknown>	DEFAULT	SHN_ABS
__bss_start__	.dynsym	0x161f0	0	NOTYPE	<unknown>	DEFAULT	SHN_ABS
__data_start	.dynsym	0x16184	0	NOTYPE	<unknown>	DEFAULT	17
__div0	.dynsym	0xd61c	4	FUNC	<unknown>	DEFAULT	8
__end__	.dynsym	0x16470	0	NOTYPE	<unknown>	DEFAULT	SHN_ABS
__errno_location	.dynsym	0x8ec0	32	FUNC	<unknown>	DEFAULT	SHN_UNDEF
__modsi3	.dynsym	0xd538	228	FUNC	<unknown>	DEFAULT	8
__uClibc_main	.dynsym	0x8e30	488	FUNC	<unknown>	DEFAULT	SHN_UNDEF
__udivsi3	.dynsym	0xd35c	248	FUNC	<unknown>	DEFAULT	8
__umodsi3	.dynsym	0xd46c	204	FUNC	<unknown>	DEFAULT	8
_bss_end__	.dynsym	0x16470	0	NOTYPE	<unknown>	DEFAULT	SHN_ABS
_edata	.dynsym	0x161f0	0	NOTYPE	<unknown>	DEFAULT	SHN_ABS
_end	.dynsym	0x16470	0	NOTYPE	<unknown>	DEFAULT	SHN_ABS
_start	.dynsym	0x9030	80	FUNC	<unknown>	DEFAULT	8
abort	.dynsym	0x8d88	352	FUNC	<unknown>	DEFAULT	SHN_UNDEF
accept	.dynsym	0x8d94	44	FUNC	<unknown>	DEFAULT	SHN_UNDEF
atoi	.dynsym	0x0	12	FUNC	<unknown>	DEFAULT	SHN_UNDEF
bind	.dynsym	0x8dc4	44	FUNC	<unknown>	DEFAULT	SHN_UNDEF
calloc	.dynsym	0x8da0	88	FUNC	<unknown>	DEFAULT	SHN_UNDEF
clock	.dynsym	0x8ee4	52	FUNC	<unknown>	DEFAULT	SHN_UNDEF
close	.dynsym	0x8f20	44	FUNC	<unknown>	DEFAULT	SHN_UNDEF
closedir	.dynsym	0x8efc	196	FUNC	<unknown>	DEFAULT	SHN_UNDEF
connect	.dynsym	0x8d04	44	FUNC	<unknown>	DEFAULT	SHN_UNDEF
exit	.dynsym	0x8ecc	172	FUNC	<unknown>	DEFAULT	SHN_UNDEF
fclose	.dynsym	0x8e6c	448	FUNC	<unknown>	DEFAULT	SHN_UNDEF
fcntl	.dynsym	0x8f08	116	FUNC	<unknown>	DEFAULT	SHN_UNDEF
fopen	.dynsym	0x8e48	12	FUNC	<unknown>	DEFAULT	SHN_UNDEF
fork	.dynsym	0x8e24	44	FUNC	<unknown>	DEFAULT	SHN_UNDEF
free	.dynsym	0x8f2c	288	FUNC	<unknown>	DEFAULT	SHN_UNDEF
getpid	.dynsym	0x8d1c	44	FUNC	<unknown>	DEFAULT	SHN_UNDEF
getppid	.dynsym	0x8e78	44	FUNC	<unknown>	DEFAULT	SHN_UNDEF
getsockname	.dynsym	0x8f44	44	FUNC	<unknown>	DEFAULT	SHN_UNDEF
getsockopt	.dynsym	0x8ea8	48	FUNC	<unknown>	DEFAULT	SHN_UNDEF
inet_addr	.dynsym	0x8dd0	36	FUNC	<unknown>	DEFAULT	SHN_UNDEF
ioctl	.dynsym	0x8cec	80	FUNC	<unknown>	DEFAULT	SHN_UNDEF
kill	.dynsym	0x8db8	44	FUNC	<unknown>	DEFAULT	SHN_UNDEF
listen	.dynsym	0x8e18	44	FUNC	<unknown>	DEFAULT	SHN_UNDEF
malloc	.dynsym	0x8d34	400	FUNC	<unknown>	DEFAULT	SHN_UNDEF
memcpy	.dynsym	0x0	4	FUNC	<unknown>	DEFAULT	SHN_UNDEF
memmove	.dynsym	0x0	4	FUNC	<unknown>	DEFAULT	SHN_UNDEF
memset	.dynsym	0x8e54	156	FUNC	<unknown>	DEFAULT	SHN_UNDEF
mkdir	.dynsym	0x8f14	52	FUNC	<unknown>	DEFAULT	SHN_UNDEF
mount	.dynsym	0x0	48	FUNC	<unknown>	DEFAULT	SHN_UNDEF
open	.dynsym	0x8ed8	92	FUNC	<unknown>	DEFAULT	SHN_UNDEF
opendir	.dynsym	0x8e90	264	FUNC	<unknown>	DEFAULT	SHN_UNDEF
prctl	.dynsym	0x8d28	48	FUNC	<unknown>	DEFAULT	SHN_UNDEF
rand	.dynsym	0x8de8	4	FUNC	<unknown>	DEFAULT	SHN_UNDEF
read	.dynsym	0x0	44	FUNC	<unknown>	DEFAULT	SHN_UNDEF
readdir	.dynsym	0x0	224	FUNC	<unknown>	DEFAULT	SHN_UNDEF
readlink	.dynsym	0x0	44	FUNC	<unknown>	DEFAULT	SHN_UNDEF
realloc	.dynsym	0x8e0c	312	FUNC	<unknown>	DEFAULT	SHN_UNDEF
recv	.dynsym	0x8cf8	44	FUNC	<unknown>	DEFAULT	SHN_UNDEF
recvfrom	.dynsym	0x8d4c	52	FUNC	<unknown>	DEFAULT	SHN_UNDEF
rewinddir	.dynsym	0x0	152	FUNC	<unknown>	DEFAULT	SHN_UNDEF
sbrk	.dynsym	0x8e3c	100	FUNC	<unknown>	DEFAULT	SHN_UNDEF
select	.dynsym	0x8d64	48	FUNC	<unknown>	DEFAULT	SHN_UNDEF
send	.dynsym	0x8d7c	44	FUNC	<unknown>	DEFAULT	SHN_UNDEF
sendto	.dynsym	0x8e00	52	FUNC	<unknown>	DEFAULT	SHN_UNDEF
setsid	.dynsym	0x8ef0	44	FUNC	<unknown>	DEFAULT	SHN_UNDEF
setsockopt	.dynsym	0x8ddc	48	FUNC	<unknown>	DEFAULT	SHN_UNDEF
sigaddset	.dynsym	0x8d70	48	FUNC	<unknown>	DEFAULT	SHN_UNDEF
sigemptyset	.dynsym	0x8d10	24	FUNC	<unknown>	DEFAULT	SHN_UNDEF
signal	.dynsym	0x8df4	200	FUNC	<unknown>	DEFAULT	SHN_UNDEF
sigprocmask	.dynsym	0x8f38	84	FUNC	<unknown>	DEFAULT	SHN_UNDEF
sleep	.dynsym	0x8d40	420	FUNC	<unknown>	DEFAULT	SHN_UNDEF
snprintf	.dynsym	0x0	48	FUNC	<unknown>	DEFAULT	SHN_UNDEF
socket	.dynsym	0x8d58	44	FUNC	<unknown>	DEFAULT	SHN_UNDEF
srand	.dynsym	0x8e60	148	FUNC	<unknown>	DEFAULT	SHN_UNDEF
stat	.dynsym	0x8eb4	80	FUNC	<unknown>	DEFAULT	SHN_UNDEF
strcat	.dynsym	0x0	40	FUNC	<unknown>	DEFAULT	SHN_UNDEF
strcmp	.dynsym	0x0	28	FUNC	<unknown>	DEFAULT	SHN_UNDEF
strlen	.dynsym	0x0	96	FUNC	<unknown>	DEFAULT	SHN_UNDEF
strstr	.dynsym	0x0	248	FUNC	<unknown>	DEFAULT	SHN_UNDEF
time	.dynsym	0x8e84	44	FUNC	<unknown>	DEFAULT	SHN_UNDEF
umount	.dynsym	0x8e9c	44	FUNC	<unknown>	DEFAULT	SHN_UNDEF
uname	.dynsym	0x0	44	FUNC	<unknown>	DEFAULT	SHN_UNDEF
usleep	.dynsym	0x0	76	FUNC	<unknown>	DEFAULT	SHN_UNDEF
write	.dynsym	0x8dac	44	FUNC	<unknown>	DEFAULT	SHN_UNDEF

Network Behavior

Network Port Distribution

TCP Packets

Timestamp	Source Port	Dest Port	Source IP	Dest IP
Oct 8, 2024 10:00:08.003884077 CEST	43928	443	192.168.2.23	91.189.91.42
Oct 8, 2024 10:00:13.635001898 CEST	42836	443	192.168.2.23	91.189.91.43
Oct 8, 2024 10:00:14.658854008 CEST	42516	80	192.168.2.23	109.202.202.202
Oct 8, 2024 10:00:29.760596991 CEST	43928	443	192.168.2.23	91.189.91.42
Oct 8, 2024 10:00:39.999321938 CEST	42836	443	192.168.2.23	91.189.91.43
Oct 8, 2024 10:00:44.094789028 CEST	42516	80	192.168.2.23	109.202.202.202
Oct 8, 2024 10:01:10.715143919 CEST	43928	443	192.168.2.23	91.189.91.42

System Behavior

Analysis Process: dash PID: 6223, Parent PID: 4331

General

Start time (UTC):	08:00:01
Start date (UTC):	08/10/2024
Path:	/usr/bin/dash
Arguments:	-
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Chronological Activities

Analysis Process: rm PID: 6223, Parent PID: 4331

General

Start time (UTC):	08:00:01
Start date (UTC):	08/10/2024
Path:	/usr/bin/rm
Arguments:	rm -f /tmp/tmp.QQuhjvfmRR /tmp/tmp.4ta8QmZA8k /tmp/tmp.bZC4RaebMV
File size:	72056 bytes
MD5 hash:	aa2b5496fdbfd88e38791ab81f90b95b

Chronological Activities

Analysis Process: dash PID: 6224, Parent PID: 4331

General

Start time (UTC):	08:00:01
Start date (UTC):	08/10/2024
Path:	/usr/bin/dash
Arguments:	-
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Chronological Activities

Analysis Process: rm PID: 6224, Parent PID: 4331

General

Start time (UTC):	08:00:01
Start date (UTC):	08/10/2024
Path:	/usr/bin/rm
Arguments:	rm -f /tmp/tmp.QQuhjvfmRR /tmp/tmp.4ta8QmZA8k /tmp/tmp.bZC4RaebMV
File size:	72056 bytes
MD5 hash:	aa2b5496fdbfd88e38791ab81f90b95b

Chronological Activities

Analysis Process: na.elf PID: 6236, Parent PID: 6150

General

Start time (UTC):	08:00:08
Start date (UTC):	08/10/2024
Path:	/tmp/na.elf
Arguments:	/tmp/na.elf
File size:	4956856 bytes
MD5 hash:	5ebfcae4fe2471fcc5695c2394773ff1

Description:	Adversaries may delete files left behind by the actions of their intrusion activity. Malware, tools, or other non-native files dropped or created on a system by an adversary (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

Graph

Loading Joe Sandbox Report ...

Warning!

Linux Analysis Report na.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

Persistence and Installation Behavior

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: dash PID: 6223, Parent PID: 4331

General

Chronological Activities

Analysis Process: rm PID: 6223, Parent PID: 4331

General

Chronological Activities

Analysis Process: dash PID: 6224, Parent PID: 4331

General

Chronological Activities

Analysis Process: rm PID: 6224, Parent PID: 4331

General

Chronological Activities

Analysis Process: na.elf PID: 6236, Parent PID: 6150

General

Chronological Activities

Linux Analysis Report
na.elf